Near-eye display device and its calibration method, device and storage medium

Abstract

This specification provides an embodiment of a near-eye display device and its calibration method, apparatus, and storage medium. The near-eye display device includes two display modules corresponding one-to-one with a user's two eyes. The method includes: obtaining strabismus data and fusion range corresponding to the first eye of the target user through an interactive visual test while the near-eye display device is being worn by a target user; determining a personalized visual comfort zone corresponding to the first eye based on the fusion range and according to a preset visual comfort rule; and adjusting the module configuration parameters of the near-eye display device based on the strabismus data and the personalized visual comfort zone so that the perceived eye position of the first eye falls within the personalized visual comfort zone.

Description

Technical Field

[0001] This specification relates to the field of near-eye display technology, and more particularly to a near-eye display device and its calibration method, device and storage medium. Background Technology

[0002] With the development of near-eye display technology, research on near-eye display devices has become increasingly extensive, and the requirements for the display effects of near-eye display devices have also become increasingly stringent. One commonly used near-eye display device is a virtual reality (VR) device. A VR device includes a left-eye display module and a right-eye display module. These two display modules are used to provide the user's left and right eyes with images with a certain parallax, respectively, to create an immersive stereoscopic three-dimensional depth experience for the user.

[0003] Most users have some degree of strabismus. When using current VR devices, users with strabismus need their brain's fusion function to forcibly keep the strabismic eyes in a straight position, which continuously causes compensatory tension in the eye muscles and increases eye fatigue. Therefore, how to reduce eye fatigue when using VR devices is a technical issue that needs to be considered.

[0004] The information in the background section is merely information known only to the inventor and does not imply that such information had entered the public domain before the date of this application, nor does it imply that it can be considered prior art in this disclosure. Summary of the Invention

[0005] This specification provides a near-eye display device and its calibration method, apparatus, and storage medium, which can calibrate the module configuration parameters of the near-eye display device to match the personalized visual comfort zone of the target user's eyes, thereby reducing visual fatigue during the use of the near-eye display device.

[0006] Firstly, this specification provides a calibration method for a near-eye display device, wherein the near-eye display device includes two display modules corresponding one-to-one with a user's two eyes. The method includes: obtaining strabismus data and fusion range corresponding to the first eye of the target user through an interactive visual test while the near-eye display device is being worn by a target user; determining a personalized visual comfort zone corresponding to the first eye based on the fusion range and according to a preset visual comfort rule; and adjusting the module configuration parameters of the near-eye display device based on the strabismus data and the personalized visual comfort zone so that the perceived eye position of the first eye falls within the personalized visual comfort zone.

[0007] Secondly, this specification also provides a calibration device communicatively connected to a near-eye display device, comprising: at least one storage medium storing at least one instruction set; and at least one processor communicatively connected to the at least one storage medium, wherein the at least one processor reads the at least one instruction set and executes the method described in the first aspect according to the instructions of the at least one instruction set to calibrate the near-eye display device.

[0008] Thirdly, this specification also provides a near-eye display device, comprising: two display modules corresponding one-to-one with a user's two eyes; at least one storage medium storing at least one instruction set; and at least one processor communicatively connected to the at least one storage medium, wherein the at least one processor reads the at least one instruction set and executes the method described in the first aspect according to the instructions of the at least one instruction set to calibrate the module configuration parameters of the near-eye display device.

[0009] Fourthly, this specification also provides a computer-readable non-volatile storage medium, wherein the computer-readable non-volatile storage medium stores at least one instruction set, which, when executed by at least one processor, implements the method described in the first aspect above.

[0010] The near-eye display device, its calibration method, equipment, and storage medium provided in this manual, for the target user, can obtain strabismus data and fusion range corresponding to the user's eyes through interactive visual testing. Based on a preset visual comfort rule, it determines the personalized visual comfort zone corresponding to the eye, and adjusts the module configuration parameters of the near-eye display device accordingly, so that the user's perceived eye position falls within this personalized visual comfort zone. In this way, the near-eye display device can be personalized for different users, adapting to each user individually, ensuring that the user's perceived eye position is within the corresponding personalized visual comfort zone during use, thus reducing eye fatigue.

[0011] Other functions of the near-eye display devices, calibration methods, apparatus, and storage media provided in this specification will be partially listed in the following description. The inventive aspects of the near-eye display devices, calibration methods, apparatus, and storage media provided in this specification can be fully understood through practice or use of the methods, apparatus, and combinations described in the detailed examples below. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this specification, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 An optical display architecture diagram of a display in a near-eye display device according to an embodiment of this specification is shown; Figure 2 A schematic diagram illustrating an application scenario of a near-eye display device according to an embodiment of this specification is shown; Figure 3 A hardware structure diagram of an electronic device provided according to an embodiment of this specification is shown; Figure 4 A flowchart is shown of a calibration method for a near-eye display device according to an embodiment of this specification; Figure 5 A schematic diagram of a scenario for obtaining strabismus data is shown according to an embodiment of this specification; Figure 6 A schematic diagram of a scene for obtaining the fusion range is shown according to an embodiment of this specification; Figure 7 A comprehensive schematic diagram of personalized visual parameters of a first eye provided according to embodiments of this specification is shown; and Figure 8 A schematic diagram of the geometric optical relationships in a near-eye display device provided according to an embodiment of this specification is shown. Detailed Implementation

[0014] The following description provides specific application scenarios and requirements for this specification, intended to enable those skilled in the art to make and use the contents of this specification. Various partial modifications to the disclosed embodiments will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments and applications without departing from the spirit and scope of this specification. Therefore, this specification is not limited to the embodiments shown, but rather to the widest scope consistent with the claims.

[0015] The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not restrictive. For example, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” used herein may also include the plural forms. The term “a plurality” refers to two or more, and “at least one” refers to one or more. The terms “first,” “second,” etc., may be used in this specification to describe various information, but such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, “first” may also be referred to as “second” without departing from the scope of embodiments of this specification, and similarly, “second” may also be referred to as “first.”

[0016] The term "at least one of A, B, or C" includes seven options: A only, B only, C only, both A and B, both A and C, both B and C, and both A, B, and C. Similarly, the statement "at least one of multiple items" refers to all possible combinations based on these items. The term "and / or" refers to any or all possible combinations of one or more associated listed items. For example, "A and / or B" includes three options: A only, B only, and both A and B. "A, B, and / or C" is equivalent to "at least one of A, B, or C".

[0017] The term "comprising" is an open-ended description and should be understood as "including but not limited to," potentially including other content beyond what has been described. When used in this specification, the terms "comprising," "including," and / or "containing" mean that the associated integers, steps, operations, elements, and / or components are present, but do not exclude the presence of one or more other features, integers, steps, operations, elements, components, and / or groups, or that other features, integers, steps, operations, elements, components, and / or groups may be added to the system / method.

[0018] Considering the following description, these and other features of this specification, as well as the operation and function of the related components of the structure, and the economy of assembly and manufacture of the parts, can be significantly improved. All of these form part of this specification with reference to the accompanying drawings. However, it should be clearly understood that the drawings are for illustrative and descriptive purposes only and are not intended to limit the scope of this specification. It should also be understood that the drawings are not drawn to scale.

[0019] The flowcharts used in this specification illustrate operations implemented according to some embodiments of this specification. It should be clearly understood that the operations in the flowcharts may not be implemented in a sequential order. Instead, the operations may be implemented in reverse order or simultaneously. Furthermore, one or more additional operations may be added to the flowcharts. One or more operations may be removed from the flowcharts.

[0020] With the development of near-eye display technology, research on near-eye display devices has become increasingly extensive. Near-eye display technology refers to the technology of projecting digital information into the sensory range of the human eye's retina through an optical system. The core principle of near-eye display technology is to expand the human eye's field of view by simulating the binocular parallax mechanism and utilizing a micro-display screen and optical system.

[0021] Near-eye display technology encompasses technologies such as virtual reality (VR), augmented reality (AR), and mixed reality (MR). VR corresponds to a fully immersive digital world. VR technology primarily uses head-mounted displays to replace the user's visual and auditory perception, creating a fully digital environment. AR corresponds to the overlay of the digital and real worlds. AR technology overlays digital information (images, videos, 3D models, etc.) onto the real world, allowing users to see this overlay effect through devices such as mobile phones, tablets, or AR glasses. MR corresponds to the deep integration of digital information with the real world. MR technology enables interaction between digital information and the real world, allowing virtual objects to not only appear in the real world as perceived by the user but also to recognize and respond to the real world; for example, a virtual ball can appear to bounce on a real surface.

[0022] The near-eye display device described in this specification can be a device based on at least one of the aforementioned VR, AR, or MR technologies. In some embodiments, the near-eye display device includes a VR device, such as a VR headset or a standalone VR device. The VR device may include a display and a controller. The display may be a head-mounted display that can be worn directly on the user's head to provide images to the user. The controller is an interactive peripheral in the near-eye display device, acting as an extension of the user's hands in the virtual world, used to map the user's physical movements into the digital space. The user can use the controller to interact with the display, triggering the display to display corresponding information based on the instructions provided by the controller.

[0023] The following introduction will use near-eye display devices as an example of VR devices. Figure 1 An optical display architecture diagram of a display in a near-eye display device according to an embodiment of this specification is shown. Figure 1 As shown, the display 111 of the near-eye display device includes two display modules that correspond one-to-one with the user's two eyes, such as including Figure 1 The system includes a first display module 101 and a second display module 102. The first display module 101 corresponds to the user's left eye 01 and is used to provide an image to the left eye 01. The second display module 102 corresponds to the user's right eye 02 and is used to provide an image to the right eye 02. The two images provided by the two display modules to the user's left and right eyes have subtle differences in perspective. The user's brain fuses these images with different perspectives to create a sense of visual depth and stereoscopic effect.

[0024] Each display module includes a display screen 1001 and a lens 1002, responsible for converting received image data into optical signals that ultimately enter the human eye. The figure only uses the second display module 102 as an example, labeling the display screen and lens within it. The display screen 1001 is located a few centimeters in front of the viewer's eyes. The image displayed on the display screen 1001 can be projected as a virtual image at a distance (e.g., 1-2 meters) through the lens 1002. This virtual image can fill the viewer's field of vision, providing the user with an immersive visual experience. For example, Figure 1 The first display module 101 forms the first virtual image. The second display module 102 forms a second virtual image. . first virtual image With the second virtual image It is an image with subtle differences in perspective. First virtual image. With the second virtual image Located at the same observation distance (Also referred to as the same depth, such as 2 meters), and most of the visual field overlaps, with a slight horizontal shift in the imaging position of the same object in the overlapping area (corresponding to binocular parallax). The brain fuses these two virtual images seen by the left and right eyes respectively to reconstruct a three-dimensional space with depth relationships. It should be noted that the size, proportion, and relative position of each element in the diagram are only approximate illustrations and do not represent the actual situation of each element. For example, in reality, the virtual image is displayed at a farther position, the size of the virtual image is larger in proportion to the size of the display module, and the edges of the virtual image extend further.

[0025] Each display module corresponds to a virtual camera, and the image displayed on the screen 1001 within the display module is determined based on this virtual camera. The virtual camera, as a software rendering unit, represents the user's eyes in a virtual world, which refers to a software-defined digital space. The virtual camera simulates the function of a real camera, defining a viewing angle in the virtual world based on the user's head posture and personalized visual parameters. This viewing angle can be represented by the virtual camera's pose, which includes the virtual camera's position and shooting direction. Based on the virtual camera's pose, visual content with correct depth relationships can be rendered, and this visual content can then be output to the screen 1001 for display.

[0026] Near-eye display devices are equipped with an optically designed eye box. The eye box is the area optically designed so that the human eye can see the image relatively clearly. The eye box can include a cone-shaped area between the display module and the human eyeball. When the human eye is aligned with the center of the display screen, a clear image is seen; as the human eye moves up, down, left, or right, the image clarity deteriorates until the displayed image becomes unacceptable (e.g., distorted or no content is displayed). The eye box includes the overall viewing area of ​​these clear images and the surrounding less clear images. During the operation of a near-eye display device, the human eye should be kept within this eye box area to ensure the optimal usability of the near-eye display device.

[0027] In near-eye display devices, it is typically assumed that the human eye is looking straight ahead, with the user's visual axes parallel. Based on this, the position of the user's eyeballs can be used as the position of a virtual camera, and the user's facing direction can be considered the virtual camera's shooting direction. During operation, the near-eye display device renders images corresponding to the two display modules based on the virtual camera's pose and the preset generation method of the binocular images, thereby causing the two display modules to display the corresponding images.

[0028] In reality, many users have strabismus (crossed eyes). Strabismus refers to an eye condition where the visual axes of both eyes are not parallel, preventing simultaneous fixation on the same target. Strabismus includes two types: latent strabismus and manifest strabismus. Latent strabismus refers to a deviation in eye position that occurs after binocular fusion is disrupted, whereas normal eye position is achieved under fusion. Manifest strabismus refers to a persistent deviation in eye position even under binocular fusion. Here, eye position refers to the actual eye position, that is, the physical direction of the eyeball within the eye socket. This physical direction is the actual direction of the visual axis or line of sight in a specific visual state (such as when the eyes are looking straight ahead). For users with strabismus, near-eye display devices also operate in the manner described above. This method does not match the actual condition of the user's eyes, potentially leading to inconsistent image clarity between the two eyes, thus increasing eye strain.

[0029] In the embodiments described in this specification, the module configuration parameters of the near-eye display device can be adjusted. These module configuration parameters refer to the configuration parameters of the display module within the near-eye display device. For example, by implementing the calibration method for the near-eye display device provided in this specification, the module configuration parameters of the near-eye display device can be personalized according to the user's actual eye condition. This allows the display mode of the near-eye display device to match the user's eye condition, reducing user fatigue during use.

[0030] In some embodiments, the module configuration parameters may include position adjustment parameters for the display modules. These position adjustment parameters may include parameters for adjusting the relative positions of the two display modules in the near-eye display device. These parameters may indicate that the position of each display module is adjusted individually, or that the positions of both display modules are adjusted together. In some embodiments, the relative positions of the two display modules may be adjusted based on the user's interpupillary distance, which refers to the horizontal distance between the centers of the pupils of a person's two eyes.

[0031] In some embodiments, the module configuration parameter includes the device interpupillary distance (PIPD), which characterizes the horizontal distance between the optical centers of two display modules in a near-eye display device. This horizontal distance refers to the distance between the optical centers of the two display modules when the near-eye display device is placed horizontally. For example, the PIPD can be... Figure 1 The optical center of the lens in the first display module 101 shown Optical center of the lens in the second display module 102 Horizontal distance between The device's interpupillary distance (IPD) can be used as a parameter for adjusting the position of the aforementioned display modules. In some embodiments, the horizontal distance between the optical centers of the two display modules in a near-eye display device can be equal to the user's binocular interpupillary distance (BID). Adaptively adjusting the device's IPD for different users allows the user's eyes to remain within the eye box, ensuring a basic viewing experience. In some embodiments, in addition to adjusting the position of the display modules based on the user's IPD, further adjustments can be made based on the user's actual eye condition (such as different degrees of strabismus) to further improve the matching degree between the near-eye display device and the user, thereby enhancing the display effect.

[0032] In some embodiments, the module configuration parameters may include pose adjustment parameters for the virtual cameras. For example, these may include parameters for adjusting the relative positions of the virtual cameras corresponding to the two display modules in a near-eye display device. These parameters may instruct the pose of each virtual camera to be adjusted individually, or instruct the positions of the virtual cameras corresponding to the two display modules to be adjusted together. In some embodiments, the module configuration parameters include a rendered interpupillary distance (IPD), which represents the horizontal distance between the virtual cameras corresponding to the two display modules in the near-eye display device. This IPD can be used as the aforementioned pose adjustment parameter for the virtual cameras.

[0033] In some embodiments, the device interpupillary distance (PIPD) and the rendering interpupillary distance (JIPD) of the near-eye display device can be considered equal. Based on the actual situation of the user's eyes, the PIPD and JIPD of the near-eye display device can be adjusted synchronously, and the position of the display module and the image content displayed by the display module can be adjusted accordingly.

[0034] This specification provides a near-eye display device and its calibration method, apparatus, and storage medium. For a target user, it enables the determination of the user's actual eye condition through interactive visual testing. This actual eye condition is characterized by corresponding strabismus data and fusion range. Based on this actual eye condition and according to a preset visual comfort rule, a personalized visual comfort zone corresponding to the eye is determined. The module configuration parameters of the near-eye display device are then adjusted accordingly to ensure that the user's perceived eye position falls within this personalized visual comfort zone. In this way, the near-eye display device can be personalized for different users, adapting to each user and ensuring that the user's perceived eye position is within the corresponding personalized visual comfort zone during use, thus reducing eye fatigue.

[0035] Figure 2 This diagram illustrates an application scenario of a near-eye display device according to an embodiment of this specification, specifically an application scenario 100 of a calibration method for a near-eye display device. Figure 2 As shown, the application scenario 100 may include a near-eye display device 110 and a target user 120. The target user 120 may use the near-eye display device 110 to play games, watch videos, learn in a realistic setting, simulate healthcare scenarios, or complete other tasks.

[0036] Near-eye display device 110 includes a head-mounted display 111 and a handheld device 112. For details about the display 111, please refer to the previous section. Figure 1 The relevant information is as follows. For more information about the handle 112, please refer to the previous description of the handle. The target user 120 is the user of the near-eye display device 110. The target user 120 can wear the display 111 on their head, hold the handle 112 in their hand, and manipulate the handle 112 to input control commands to affect the content displayed on the display 111.

[0037] In some embodiments, the target user 120 can perform an interactive visual test using a handle 112 while wearing the near-eye display device 110 (specifically, wearing the display 111), so that the near-eye display device 110 obtains personalized visual parameters of the target user 120. These personalized visual parameters can characterize the degree of strabismus. The near-eye display device 110 can be calibrated based on these personalized visual parameters, such as adjusting module configuration parameters, to adapt to the eye condition of the target user 120.

[0038] In some embodiments, such as Figure 2As shown, application scenario 100 also includes a calibration device 130. The calibration device 130 can be wired or wirelessly connected to the near-eye display device 110 to control the near-eye display device 110. This includes controlling the content displayed on the near-eye display device 110, controlling the operating mode of the near-eye display device 110, or triggering automatic adjustments to adjustable components in the near-eye display device 110. In some embodiments, the calibration device 130 may have an application for device calibration installed. The calibration device 130 can run the application, binding it to the near-eye display device 110 to calibrate or otherwise control the near-eye display device 110. In some embodiments, the calibration device 130 may include a mobile device, tablet computer, laptop computer, desktop computer, or similar content, or any combination thereof. In some embodiments, the mobile device may include a smartphone, personal digital assistant, gaming device, navigation device, or any combination thereof.

[0039] In some embodiments, the calibration method for the near-eye display device provided in this specification can be executed on the calibration device 130, enabling the near-eye display device 110 to be calibrated for the target user 120 under the control of the calibration device 130. In this case, the calibration device 130 may store data or instructions for executing the calibration method for the near-eye display device described in this specification, and may execute or be used to execute said data or instructions. In some embodiments, the calibration device 130 may include hardware devices with data processing capabilities and the necessary programs required to drive the hardware devices.

[0040] In some embodiments, the near-eye display device 110 can be self-calibrated without the aid of other external devices. Accordingly, the calibration method for the near-eye display device provided in this specification can be performed on the near-eye display device 110. In this case, the near-eye display device 110 may store data or instructions for performing the calibration method for the near-eye display device described in this specification, and may execute or be used to execute said data or instructions. In some embodiments, the near-eye display device 110 may include hardware devices with data processing capabilities and the necessary programs required to drive the hardware devices.

[0041] For example, the near-eye display device 110 may include a processor (not shown). The processor can determine the image that the display 111 should display and control the components in the near-eye display device 110. In the case of self-calibration of the near-eye display device 110, the calibration method of the near-eye display device can be specifically executed by the processor to calibrate the module configuration parameters of the near-eye display device. The near-eye display device 110 may also include a storage medium that may store data or instructions for performing the calibration method of the near-eye display device described herein. The processor may be communicatively connected to the storage medium to execute or be used to execute the data or instructions.

[0042] It should be noted that all user data obtained in this manual has been authorized by the user and does not involve user privacy.

[0043] The calibration scheme for near-eye display devices provided in this specification can be applied to various usage scenarios, and the model training scenario described above is just one of these scenarios. For ease of understanding, the examples provided later in this specification will still use the model training scenario as an example. Those skilled in the art should understand that when the calibration scheme for near-eye display devices provided in this specification is applied to other usage scenarios, the implementation principle is similar, and this specification will not provide examples for each of these other usage scenarios. In addition, the data type of the original dataset targeted by the calibration scheme for near-eye display devices may differ in different usage scenarios, and the data processing type corresponding to the generated target strategy may also differ.

[0044] Figure 3 A hardware structure diagram of an electronic device provided according to an embodiment of this specification is shown. Figure 3 Electronic device 200 in the middle can be used as Figure 2 The near-eye display device 110 or calibration device 130 in the electronic device 200 shall perform the calibration method for the near-eye display device described in this specification. Figure 2 In the case of the near-eye display device 110, the electronic device 200 in Figure 3 In addition to the components shown, it also includes two display modules that correspond one-to-one with the user's two eyes. Figure 3 No further illustrations are provided.

[0045] like Figure 3 As shown, the electronic device 200 may include at least one storage medium 230 and at least one processor 220. In some embodiments, the electronic device 200 may also include a communication port 250 and an internal communication bus 210. The electronic device 200 may also include an input / output component (I / O component) 260.

[0046] The internal communication bus 210 can connect to different system components. For example, the internal communication bus 210 can connect to storage medium 230, processor 220, communication port 250, and I / O component 260, etc.

[0047] I / O component 260 supports input / output between electronic device 200 and other components.

[0048] Communication port 250 is used for data communication between electronic device 200 and the outside world. For example, communication port 250 can be used for data communication between electronic device 200 and a network. Communication port 250 can be a wired communication port or a wireless communication port.

[0049] Storage medium 230 may include a data storage device. The data storage device may be a non-transitory storage medium or a temporary storage medium. For example, the data storage device may include one or more of a disk 232, a read-only storage medium (ROM) 234, or a random access storage medium (RAM) 236. Storage medium 230 also includes at least one instruction set stored in the data storage device. The instruction set may include computer program code, which may include programs, routines, objects, components, data structures, procedures, modules, etc.

[0050] At least one processor 220 may be communicatively connected to at least one storage medium 230. When the electronic device 200 is running, at least one processor 220 reads the at least one instruction set and, according to the instructions of the at least one instruction set, executes the calibration method for the near-eye display device provided in this specification. The processor 220 may perform the steps included in the calibration method for the near-eye display device. The processor 220 may be in the form of one or more processors. In some embodiments, the processor 220 may include one or more hardware processors, such as a microcontroller, microprocessor, reduced instruction set computer (RISC), application-specific integrated circuit (ASIC), application-specific instruction set processor (ASIP), central processing unit (CPU), graphics processing unit (GPU), physical processing unit (PPU), microcontroller unit, digital signal processor (DSP), field-programmable gate array (FPGA), advanced RISC machine (ARM), programmable logic device (PLD), any circuit or processor capable of performing one or more functions, or any combination thereof.

[0051] For illustrative purposes only, the electronic device 200 in the accompanying drawings shows only one processor 220. However, it should be noted that the electronic device 200 in this specification may also include multiple processors. Therefore, the operation and / or method steps disclosed in this specification may be executed by one processor or by multiple processors in combination. For example, if the processor 220 of the electronic device 200 described in this specification executes steps A and B, it should be understood that steps A and B may also be executed jointly or separately by two different processors 220 (e.g., the first processor executes step A, the second processor executes step B, or the first and second processors jointly execute steps A and B).

[0052] Figure 4 A flowchart illustrating a calibration method for a near-eye display device according to an embodiment of this specification is shown. As previously described, electronic device 200 can serve as... Figure 2The near-eye display device 110 or calibration device 130 in the electronic device 200 executes the calibration method P400 for the near-eye display device described in this specification. Specifically, the processor 220 in the electronic device 200 can read the instruction set stored in its local storage medium, and then execute the calibration method P400 for the near-eye display device described in this specification according to the instructions in the instruction set. The following description uses the calibration method executed by the calibration device as an example. Figure 4 As shown, method P400 may include steps 410 to 430 as described below.

[0053] Step 410: With the near-eye display device being worn by the target user, obtain the strabismus data and fusion range corresponding to the target user's first eye through interactive visual testing.

[0054] Before calibrating a near-eye display device, the calibration equipment needs to determine the actual eye condition of the target user in order to calibrate the near-eye display device specifically, ensuring that the calibration results match the target user's actual eye condition and improving the calibration effectiveness. For example, the calibration equipment can use the near-eye display device to conduct interactive visual tests on the target user to determine personalized visual parameters for each eye. These personalized visual parameters can characterize the actual eye condition, such as at least indicating the degree of strabismus.

[0055] When using a near-eye display device, the target user needs to wear it, such as a head-mounted display. While the near-eye display is being worn by the target user, the calibration device can use it to conduct interactive tests on the target user to obtain their personalized visual parameters. For example, the calibration device can control the near-eye display to display content (such as preset visual targets) to be presented to the target user during the test, according to a preset test method. The calibration device can also instruct the target user to perform corresponding interactive operations based on the content they see (such as using a controller), and then determine the target user's personalized visual parameters based on these interactions.

[0056] The calibration device can determine corresponding personalized visual parameters for each of the target user's two eyes, such as the target user's first eye and second eye. The following description uses obtaining the corresponding personalized visual parameters for the first eye and then calibrating the near-eye display device based on these parameters as an example. The same operating procedure can be performed for the second eye, and will not be elaborated upon in this manual. The first eye can be either the target user's left or right eye; correspondingly, the second eye is the target user's other eye.

[0057] In this specification, the personalized visual parameters include strabismus data corresponding to the eye. This strabismus data characterizes the strabismus condition of the eye. In some embodiments, the strabismus data may include strabismus type. Strabismus may include horizontal strabismus, and correspondingly, horizontal strabismus types include esotropia (i.e., deviation towards the nose) and exotropia (i.e., deviation towards the temporal side). Strabismus may also include vertical strabismus, and correspondingly, vertical strabismus includes hypertropia and hypotropia. Horizontal strabismus is more likely to occur, and the embodiments below in this specification primarily use horizontal strabismus as an example. Vertical strabismus can be processed in a similar manner, and will not be elaborated upon in this specification. In some embodiments, the strabismus data includes strabismus degree (i.e., degree of strabismus). For example, the strabismus degree may be the amount of deviation (e.g., offset angle) of the actual gaze direction of the eye relative to directly forward when the eye is indicated to be gazing straight ahead.

[0058] The following describes the method for obtaining strabismus data corresponding to the target user's first eye through interactive visual testing. This strabismus data includes strabismus type and degree; the strabismus type can include esotropia and exotropia. In some embodiments, the calibration device can be configured to test the user's strabismus using a near-eye display device, based on the principle of measuring strabismus clinically using Maldini rods, to obtain the strabismus data corresponding to the user's eye. Maldini rods consist of an arrangement of transparent cylindrical lenses (which can be called cylindrical lenses), capable of converting point light into band light. Horizontal Maldini rods (cylindrical lenses arranged vertically) convert the point light source into a vertical line, used to measure strabismus data in the horizontal direction. Vertical Maldini rods (cylindrical lenses arranged horizontally) convert the point light source into a horizontal line, used to measure strabismus data in the vertical direction. During measurement, a point light source is provided in front of the user, and the Maldini rods are placed in front of one of the user's eyes to break the fusion reflection of the user's eyes. The user's eye with the Maldini rods placed sees band light, while the other eye sees point light. By asking users about the locations of the band-like and dot-like lights they see, the type and degree of strabismus in their eyes can be determined.

[0059] For example, the interactive visual testing process for strabismus data corresponding to the first eye may include the following steps s11 to s15. Figure 5 A schematic diagram of a scenario for obtaining strabismus data is shown according to an embodiment of this specification. Figure 5 Taking the first eye being tested as the target user's right eye as an example, this paper illustrates a scenario where strabismus data corresponding to the first eye is obtained through interactive visual testing. The following section combines... Figure 5 This section introduces the interactive visual testing process.

[0060] Step s11: Control the display module corresponding to the first eye to display the first visual target, and control the display module corresponding to the second eye to display the second visual target. The first visual target and the second visual target are different, but correspond to the same imaging position.

[0061] After the target user wears the near-eye display device, the calibration device can control the two display modules in the near-eye display device to display two different optotypes, and these two different optotypes correspond to the same imaging position. This imaging position refers to the position of the formed virtual image. If the user's visual axes are parallel and there is no strabismus, the two optotypes should appear to overlap. This simulates the measurement method of providing a point light source to the user in a real-world scenario. The "seeing" mentioned in this manual refers to the perception in the user's visual perception dimension, that is, the subjective perception content ultimately synthesized by the brain based on retinal signals.

[0062] For example, such as Figure 5 As shown, assuming the first eye is the right eye, the first visual target displayed by its corresponding display module can be a vertical line, and the second visual target displayed by the display module corresponding to the second eye can be a dot. If the visual axes of the first and second eyes are parallel, the target user should see the vertical line coincide with the dot, that is, the vertical line passes through the dot. If the user's eyes are strabismus, the first and second visual targets will be seen to be separated, and the specific strabismus data can be obtained through the following steps. If the target user sees the first visual target to the right of the second visual target, it indicates that the right eye is exotropia. If the target user sees the first visual target to the left of the second visual target, it indicates that the right eye is esotropia. For the left eye, the relative positions of the visual targets used to determine exotropia and esotropia are reversed.

[0063] In some embodiments, the calibration device may also output initial prompt information after controlling the near-eye display device to display the first and second optotypes. This initial prompt information can be used to prompt the target user to confirm whether the first and second optotypes they see overlap. For example, the target user can operate a handle (such as pressing a button or performing a preset action) or speak to provide feedback on whether the first and second optotypes they see overlap. If they do not overlap, the subsequent steps of acquiring strabismus data and further calibration are performed. If they overlap, no additional operation is required, and the near-eye display device can directly start working according to the default module configuration parameters.

[0064] Step s12: Output the first prompt information. The first prompt information is used to prompt the target user to move the first target by operating the handle until the first target and the second target have an overlapping area.

[0065] The overlapping area between the first and second visual targets refers to the fact that the two visual targets overlap in the visual perception of the target user.

[0066] In some embodiments, the calibration device can control the near-eye display device to output the first prompt information in text form, such as controlling the display module in the near-eye display device to display corresponding information. In some embodiments, the calibration device can control the near-eye display device to output the first prompt information in sound form, such as controlling the sound output component in the near-eye display device to output the first prompt information.

[0067] The target user can operate according to the first prompt information, such as moving the first target by performing a movement operation on the handle. In some embodiments, the handle may be provided with buttons or knobs corresponding to different directions. The movement operation performed by the target user may include pressing the button or rotating the knob. For example, each time the user presses a button or rotates a knob, the first target is adjusted by a preset unit distance in the direction corresponding to the button or rotation direction. This preset unit distance can be a physical distance (such as 1 millimeter or 1 pixel), or it can be directly expressed in prism diopters (such as corresponding to 0.1 or 0.2 prism diopters). In some embodiments, the target user can also trigger the movement of the first target in a certain direction by moving the entire handle in that direction. After confirming that the first target has been moved to an overlapping area with the second target, the target user can then confirm the adjustment by using the handle to provide feedback to the calibration device that the adjustment is complete.

[0068] like Figure 5 As shown, assuming the target user sees the first visual target (vertical bar) displayed to the right of the second visual target (dot), the target user can move the first visual target to the left using the operating handle. Based on the user's operation, the near-eye display device can gradually adjust the position of the vertical bar displayed on the right-eye corresponding display module until the target user sees an overlapping area between the first and second visual targets, such as the vertical bar passing through the dot. At this point, the target user can confirm the action using the handle and end the movement of the vertical bar.

[0069] In some embodiments, the first prompt message may be output together with the aforementioned initial prompt message. The calibration device can determine whether the first and second identifications seen by the target user overlap by analyzing the actions performed by the target user after the prompt message is output.

[0070] Step s13: Obtain the first target's movement direction and first movement distance.

[0071] The calibration equipment can obtain the target user's operation information on the handle, such as the handle transmitting its operation information to the calibration equipment. Based on this operation information, the calibration equipment can determine the target user's movement of the first visual target. Based on this operation information, the calibration equipment can obtain the direction and distance of movement of the first visual target; for ease of description, the distance of movement of the first visual target will be referred to as the first movement distance below. Figure 5 In the example scenario, the first target moves to the left, and the first movement distance is... .

[0072] Step s14: Based on the direction of movement, determine the strabismus type of the first eye.

[0073] By obtaining the direction of movement of the first visual target, the calibration device can determine the relative position of the first visual target and the second visual target as seen by the target user. For Figure 5 In the example scenario, the first visual target moves to the left. Accordingly, it can be determined that when the first visual target is not moved, the target user sees the first visual target to the right of the second visual target. Since the first eye is the right eye, based on the relative positions of the first and second visual targets, it can be determined that the visual axis of the right eye is more to the right of the orthogonal position. Therefore, it can be determined that the strabismus type of the first eye is exotropia.

[0074] Step s15: Determine the strabismus of the first eye based on the first movement distance.

[0075] The distance by which the first optotype deviates from the second optotype can characterize the degree of strabismus in the first eye. This distance can be determined by a first movement distance obtained by moving the first optotype. Accordingly, the calibration device can determine the degree of strabismus in the first eye based on this first movement distance. This degree of strabismus is positively correlated with the first movement distance.

[0076] In the embodiments described herein, angle-related parameters are all expressed in prism diopters, meaning the unit of each parameter is prism diopters. For example, the degree of strabismus corresponding to the eye can be expressed in prism diopters. Prism diopters are a unit in optics used to measure the degree of deviation of light rays after passing through a lens or prism (it can also be considered as a measure of the lens or prism's ability to deflect light rays). Prism diopters can be expressed in... Prism power is the ratio of the deviation of light rays from a prism at a specific distance after the light ray is incident perpendicularly on the prism to the distance itself. For example, 1 prism power (i.e., 1...) The corresponding light rays can deviate by one centimeter at a distance of one meter after passing through the prism. ,in, This represents the angle of refraction of light after passing through a prism. 1Δ = 0.57° = 0.01 radians.

[0077] In some embodiments, the strabismus is expressed in prism power, and the previously obtained first movement distance is a physical distance. Accordingly, the calibration device can perform a certain conversion based on this physical distance to obtain the strabismus expressed in prism power. In some embodiments, the calibration device can also obtain the depth of the imaging position corresponding to the aforementioned first and second optotypes, which refers to the distance between the imaging position and the human eye (e.g., 1 meter or 2 meters). To facilitate differentiation from the depths of other imaging positions, the depth of the imaging position corresponding to the first and second optotypes is referred to below as the first depth. The calibration device can determine the strabismus based on the first movement distance and the first depth of the imaging position. The strabismus angle of the first eye is determined, wherein the strabismus angle is positively correlated with the first movement distance and negatively correlated with the first depth. For example, the strabismus angle of the first eye... .

[0078] At this point, the calibration device can obtain strabismus data for the target user's first eye through interactive visual testing, including the strabismus type and degree. The calibration device can also perform the aforementioned steps s11 to s15 for the second eye to obtain the corresponding strabismus data for the second eye. For details, please refer to the relevant introduction for the first eye, which will not be elaborated here.

[0079] In this specification, personalized visual parameters of the eye may also include the fusion range of the eye. The fusion range characterizes the maximum capability of the binocular visual system to maintain a single visual field (i.e., to fuse two separate images into a single stereoscopic image) through coordinated movement. In other words, the fusion range characterizes the limit of the binocular visual system's ability to perform convergence and divergence movements while maintaining a single, clear visual field (binocular single vision). The fusion range may include a horizontal fusion range, which characterizes the ability of the eyes to converge inward and diverge outward. The fusion range may also include a vertical fusion range, which characterizes the ability of the eyes to align vertically. The embodiments described below primarily use the horizontal fusion range as an example; the vertical fusion range can be handled in a similar manner and will not be elaborated upon here. The fusion range referred to below refers to the horizontal fusion range.

[0080] Fusion range can be divided into positive fusion range and negative fusion range. Positive fusion range represents the maximum ability of the binocular visual system to generate additional convergent motion while maintaining binocular single vision. Negative fusion range represents the maximum ability of the binocular visual system to generate additional divergent motion while maintaining binocular single vision. Positive and negative fusion ranges can respectively correspond to the positive and negative reciprocal sets in medical optometry.

[0081] The following describes a method for obtaining the fusion range corresponding to the first eye of a target user through interactive visual testing. This fusion range includes a positive fusion range and a negative fusion range. For example, the interactive visual testing process for the fusion range corresponding to the first eye may include steps s21 to s23 as described below. Figure 6 A schematic diagram of a scene for obtaining the fusion range is shown according to an embodiment of this specification. Figure 6 Taking the first eye being tested as the target user's right eye as an example, we will illustrate a scenario where the fusion range corresponding to the first eye is obtained through interactive visual testing. The following section will combine... Figure 6 This section introduces the interactive visual testing process.

[0082] Step s21: Control the display module corresponding to the first eye to display the third visual target, and control the display module corresponding to the second eye to display the fourth visual target. The third visual target and the fourth visual target are the same and overlap in the visual perception of the target user.

[0083] Fusion range characterizes the binoculars' ability to fuse images and needs to be measured while both eyes are seeing the same object. Accordingly, the calibration device needs to control two display modules in a near-eye display device to display two identical optotypes, ensuring that these two optotypes overlap visually in the target user's perception, to construct the basis for measuring fusion range. For example, such as... Figure 6 As shown, the third and fourth targets can both be “E” shaped targets. Figure 6 The assumption is that when both the third and fourth visual targets are located in the center of the image, the two visual targets will overlap in the visual perception of the target user.

[0084] In some embodiments, since the calibration device cannot predict the target user's eye condition, it can first control the two display modules of the near-eye display device to display the third and fourth optotypes in a default manner, and then, with the user's assistance, make the two optotypes coincide in the user's visual perception. For example, the calibration device controls the two display modules of the near-eye display device to form the third and fourth optotypes at the same imaging position. At this time, the two optotypes may be separate in the user's visual perception. Then, if the target user sees the two optotypes as separate, the position of the third or fourth optotype is adjusted until the third and fourth optotypes coincide in the target user's visual perception, that is, they become the same optotype. Based on this, subsequent steps are performed to determine the fusion range corresponding to the first eye through interactive visual testing. In some embodiments, the third and fourth optotypes need to coincide in visual perception when the target user is looking straight ahead, so that the fusion range can be measured from the orthogonal position of the target user's eyes, improving the measurement accuracy of the fusion range.

[0085] Step s22: Output a second prompt message. The second prompt message is used to prompt the target user to move the third visual target towards the nose and the temple respectively by operating the handle until the third visual target and the fourth visual target do not completely overlap.

[0086] The incomplete overlap between the third and fourth visual targets refers to the fact that the two targets do not completely overlap in the visual perception of the target user. For example, in cases of incomplete overlap, the target user may perceive a double image of the targets.

[0087] Regarding the output method of the second prompt information, please refer to the relevant introduction regarding the first prompt information in step s12 above. Regarding the method by which the target user operates the handle based on the second prompt information (i.e., performs a movement operation) to move the third visual target, please refer to the relevant introduction regarding the movement of the first visual target in step s12 above, and will not be repeated here. In some embodiments, the second prompt information may specify the order of movement directions of the third visual target. For example, prompting the target user to first move the third visual target towards the nose until the third visual target and the fourth visual target are not completely overlapped; then moving the third visual target towards the temporal side until the third visual target and the fourth visual target are not completely overlapped. In some embodiments, the second prompt information may not specify the order of movement directions, allowing the target user to choose whether to move towards the nose or the temporal side first.

[0088] After moving the third optotype to either side until it no longer completely overlaps with the fourth optotype, the calibration device can control the near-eye display device to re-display the overlapping third and fourth optotypes, allowing the target user to move the third optotype to the other side from there. For example, the target user performs one or more movement operations using the handle to move the third optotype to a certain side. When the third and fourth optotypes are not completely overlapped, the target user can use the handle to perform a confirmation operation to inform the calibration device that the movement of the optotype to that side has ended. For details on this movement and confirmation operation, please refer to the relevant description in step s12 above.

[0089] Step s23: Determine the fusion range of the first eye based on the second movement distance of the third target towards the nasal side and the third movement distance towards the temporal side.

[0090] The calibration device can obtain the target user's operation information on the handle, such as the handle transmitting its operation information to the calibration device. Based on this operation information, the calibration device can determine the target user's movement of the third visual target, obtaining a second movement distance of the third visual target towards the target user's nose, and a third movement distance of the third visual target towards the target user's temporal side. For Figure 6 In the example case, the second movement distance of the third target is The third movement distance is The positive fusion range of the first eye can be obtained by using the second moving distance, and the negative fusion range of the first eye can be obtained by using the third moving distance, thereby obtaining the overall fusion range of the first eye.

[0091] In some embodiments, the fusion range can be represented by the corresponding prism power. The second and third movement distances obtained above are both physical distances. Accordingly, the calibration device can perform a certain conversion based on these physical distances to obtain the fusion range represented by prism power. In some embodiments, the calibration device can also obtain the depth of the imaging positions corresponding to the aforementioned third and fourth targets, where the depths of the imaging positions corresponding to the third and fourth targets are the same. To facilitate differentiation from the depths of other imaging positions, the depth of the imaging positions corresponding to the third and fourth targets is referred to below as the second depth, such as... The calibration device can be based on a second movement distance, a third movement distance, and a second depth at the imaging location. Determine the fusion range of the first eye.

[0092] In some embodiments, the calibration device may be based on a second travel distance and a second depth. The first sub-fusion range (i.e., the positive fusion range) is determined. The fusion range is positively correlated with the second and third movement distances, and also with the second depth. Negative correlation. The calibration device is based on the third travel distance and the second depth. The second sub-fusion range (i.e., the negative fusion range) is determined. The second sub-fusion range is positively correlated with the second and third movement distances, and also with the second depth. Negative correlation. The calibration device determines the fusion range of the first eye based on the first and second sub-fusion ranges. For example, this positive fusion range... The negative fusion range Overall fusion range .

[0093] Fusion range is a functional indicator of the overall binocular vision system. In some embodiments, the fusion range can be obtained by moving the target corresponding to either eye (such as the aforementioned third target) and taken as the fusion range for both eyes of the target user. In some embodiments, measurements can be taken separately for each eye, and the fusion range obtained by moving the target corresponding to each eye can be taken as the fusion range for that eye. In some embodiments, two sets of positive and negative fusion ranges can be obtained by measuring each eye separately, and the overall fusion range of the target user's eyes can be determined based on these two sets of positive and negative fusion ranges, and taken as the fusion range for each eye of the target user. For example, the smaller positive fusion range and the smaller negative fusion range from the two sets of positive and negative fusion ranges can be selected and combined to obtain the overall fusion range. As another example, the two positive fusion ranges and two negative fusion ranges obtained from the two strategies can be averaged separately, and the two averages can be combined to obtain the overall fusion range. Thus, by adopting a more conservative approach to determine the fusion range, the accuracy of the fusion range determination can be improved, enabling the fusion range to more accurately represent the overall fusion capability of the user's binocular visual system.

[0094] In this manual, the order in which the interactive visual testing procedures for the fusion range and the interactive visual testing procedures for strabismus data are performed for each eye is not specified. For example, for any eye, the calibration device can measure the strabismus data first and then the fusion range; or it can measure the fusion range first and then the strabismus data. The calibration device can measure the strabismus data and fusion range for one eye before measuring the other eye; or it can measure the strabismus data for each eye separately and then measure the fusion range for each eye separately.

[0095] Figure 7 A comprehensive schematic diagram of personalized visual parameters of a first eye provided according to an embodiment of this specification is shown. Figure 7 The diagram uses angles to illustrate the strabismus and fusion range corresponding to the first eye. For example... Figure 7 As shown, assuming the first eye is the right eye, an interactive visual test determines that it has a certain degree of exotropia. The strabismus degree of the first eye corresponds to... Figure 7 In The range of the first eye's orthomorphic image corresponds to... Figure 7 In Negative fusion imaging range corresponds to Figure 7 In .

[0096] In some embodiments, prior to step 410, the calibration device may first match the device interpupillary distance of the near-eye display device with the binocular interpupillary distance of the target user. Based on this, an interactive visual test is performed on the target user to obtain personalized visual parameters. This avoids the impact of interpupillary distance mismatch on the testing of strabismus data and fusion range, improving the accuracy of the interactive visual test and the accuracy of the obtained personalized visual parameters.

[0097] In some embodiments, the calibration device can obtain the interpupillary distance (IPD) of a target user and adjust the positions of two display modules in the near-eye display device based on this IPD, so that the device IPD of the near-eye display device equals the IPD of the two eyes. For example, the near-eye display device may include an eye-tracking system. When the near-eye display device is worn by the target user, the calibration device can control the eye-tracking system to detect the pupil positions of the target user's two eyes, and the distance between the two pupil positions is the IPD of the target user. Each display module can be connected to a micromotor. The calibration device can drive the micromotor to move the position of the display module so that the device IPD of the near-eye display device equals the IPD of the two eyes, and the optical center of each display module is aligned with the pupil position of the corresponding eye.

[0098] In some embodiments, the calibration device can instruct the target user to adjust the interpupillary distance (IPD) of the near-eye display device. For example, the near-eye display device has an IPD adjustment lever. After the target user wears the near-eye display device, the display module can display a certain image. The target user can slowly slide the adjustment lever to adjust the IPD while observing the image until the image content is clear, without ghosting or distortion. At this point, the IPD is considered to be adjusted to be equal to the interpupillary distance of both eyes.

[0099] Step 420: Based on the fusion range, determine the personalized visual comfort zone corresponding to the first eye according to the preset visual comfort rule.

[0100] The visual comfort rule is derived from clinical guidelines for assessing and correcting binocular vision in optometry. This rule defines the normal visual comfort zone for the human eye. When the perceived eye position is within this visual comfort zone, the eye muscle tension is low, and correspondingly, visual fatigue is low and visual comfort is high. Perceived eye position refers to the direction of gaze in space as subjectively perceived by the brain under specific visual stimuli.

[0101] Perceived eye position differs from actual eye position. Perceived eye position is not the actual physical orientation of the eyeball within the eye socket, but rather a subjective visual spatial perception result produced by the visual system (including the eye, optic nerve, and cerebral cortex) after processing external light signals. In an ideal visual system (where there is no strabismus), the actual eye position is the same as the perceived eye position. However, most people have a slight, unnoticed latent strabismus, and the brain constantly makes fine adjustments in the perceptual dimension; therefore, the perceived eye position is usually different from the actual eye position.

[0102] In some embodiments, the visual comfort law includes Sheard's rule (or S rule for short). The S rule states that visual comfort is above a set threshold, meaning the eye feels relatively comfortable, only when its fusional reserve is more than twice its visual demand. The fusional reserve of the eye is equal to its fusion range. Accordingly, this specification obtains the fusion range corresponding to the eye to determine the individualized visual comfort zone based on this fusion range and the visual comfort law. This visual demand can be characterized by the eye's strabismus. For esotropia, if its strabismus is less than or equal to half of the positive fusion range, the eye is relatively comfortable; conversely, the eye will experience higher fatigue when viewing images. For exotropia, if its strabismus is less than or equal to half of the negative fusion range, the eye is relatively comfortable; conversely, the eye will experience higher fatigue when viewing images.

[0103] For example, for those with Figure 7 The personalized visual parameters shown correspond to the first eye and the first visual comfort zone determined according to the S-law. Figure 7 area in This first visual comfort zone Including positive fusion range Half of the region and negative fusion image range Half of the area. When the visual demand of the first eye is within this first visual comfort zone. In this context, the primary visual perception point is located within the primary visual comfort zone. When the eyes are in a comfortable position, the first eye will feel more comfortable. However, since the first eye is exotropia and the actual visual demand is P, it is not within the first visual comfort zone. In the middle; correspondingly, the perceptual eye position of the first eye is not in the first visual comfort zone. In general, the first eye experiences higher fatigue when viewing an image. Correction can be made to the first eye, such as adjusting its perceptual eye position to the primary visual comfort zone. In order to reduce visual fatigue of the first eye.

[0104] In some embodiments, the visual comfort law includes Percival's rule (or simply P's rule). P's rule states that the comfortable zone for binocular single vision lies in the middle third of the total fusion reserve. The fusion reserve of the eye is equal to the fusion range.

[0105] For example, for those with Figure 7 The personalized visual parameters shown correspond to the first eye and the second visual comfort zone determined according to the P rule. Figure 7 area in This second visual comfort zone This includes the middle third of the total fusion range. This is the second visual comfort zone when the visual demand of the first eye is within this range. In this context, the primary visual perception position is located within the secondary visual comfort zone. When the eyes are in a comfortable position, the first eye will feel more comfortable. However, since the first eye is exotropia and the actual visual demand is P, it is not in the second visual comfort zone. In the middle; correspondingly, the perceptual eye position of the first eye is not in the second visual comfort zone. In general, the primary eye experiences higher fatigue when viewing images. Correction can be achieved by adjusting the primary eye's sensory positioning to the second visual comfort zone. In order to reduce visual fatigue of the first eye.

[0106] In some embodiments, the visual comfort laws include both the S-law and the P-law. Accordingly, the calibration device can determine a first visual comfort zone based on the fusion range corresponding to the first eye, according to the S-law. Based on the fusion range corresponding to the first eye, a second visual comfort zone can be determined according to the P-law. Based on the first and second visual comfort zones, a personalized visual comfort zone corresponding to the first eye can be determined. The determination of the first and second visual comfort zones can be found in the preceding descriptions and will not be repeated here. The preceding descriptions only address the methods of determining the visual comfort zone based on either the S-law or the P-law individually. The calibration device can also combine the visual comfort zones corresponding to these two laws to determine a final personalized visual comfort zone as a whole.

[0107] In some embodiments, the calibration device can use the intersection of a first visual comfort zone and a second visual comfort zone as the personalized visual comfort zone corresponding to the first eye. For example, for eyes with… Figure 7 The personalized visual parameters shown represent the first eye and the first visual comfort zone. With the second visual comfort zone The intersection of these two areas forms the second visual comfort zone. Accordingly, the calibration equipment can adjust this second visual comfort zone. This serves as the personalized visual comfort zone corresponding to the first eye. In some other cases, this intersection may only include a portion of the first visual comfort zone or a portion of the second visual comfort zone. In this way, the personalized visual comfort zone determined by the calibration device provides greater eye comfort for the user; that is, the user experiences greater visual comfort when their perceived eye position is within this personalized visual comfort zone. Based on this personalized visual comfort zone, calibrating near-eye display devices can significantly reduce eye fatigue for the user.

[0108] In some embodiments, the calibration device may also select one of a first visual comfort zone and a second visual comfort zone as the finally determined personalized visual comfort zone corresponding to the first eye. For example, the calibration device may select a smaller visual comfort zone from the first and second visual comfort zones as the personalized visual comfort zone corresponding to the first eye.

[0109] Step 430: Based on the strabismus data corresponding to the first eye and the personalized visual comfort zone, adjust the module configuration parameters of the near-eye display device so that the perceived eye position of the first eye falls within the personalized visual comfort zone.

[0110] Through the aforementioned process, the calibration device can obtain strabismus data corresponding to the first eye, as well as the personalized visual comfort zone corresponding to the first eye. Based on this strabismus data and personalized visual comfort zone, the calibration device can determine whether the near-eye display device needs to be adjusted to match the strabismus of the first eye.

[0111] For example, if, based on the strabismus data corresponding to the first eye, it is determined that the original perceived eye position of the first eye has fallen within the personalized visual comfort zone, then the calibration device can determine to provide the image to the first eye according to the original state of the near-eye display device. The first eye's comfort level is also high, and correspondingly, no adjustment to the near-eye display device for the first eye is necessary. The original perceived eye position of the first eye can correspond to the strabismus direction of the first eye in its natural state, such as... Figure 7 The direction of strabismus shown is the direction of strabismus corresponding to the degree of strabismus of the first eye.

[0112] For example, if, based on the strabismus data corresponding to the first eye, it is determined that the original perceived eye position of the first eye does not fall within the personalized visual comfort zone, then the calibration device can determine that providing an image to the first eye according to the original state of the near-eye display device will result in higher visual fatigue for the first eye. Accordingly, the calibration device can adjust the near-eye display device for the first eye to correct the perceived eye position of the first eye, ensuring that the perceived eye position falls within the personalized visual comfort zone. In this specification, by guiding the perceived eye position of the first eye (i.e., the perceived fixation point) to this personalized visual comfort zone, rather than forcing the user to physically move their eyeballs, visual correction can be achieved while maintaining relaxation of the eye muscles, thus reducing visual fatigue.

[0113] In this manual, adjustments to the near-eye display device may include adjusting the module configuration parameters of the near-eye display device. For information on these module configuration parameters, please refer to the previous section on... Figure 1 The relevant content in the introduction.

[0114] In some embodiments, the module configuration parameters include parameters for adjusting the relative positions of the virtual cameras corresponding to the two display modules. For example, the calibration device can adjust the position of the virtual camera corresponding to the respective display module in the near-eye display device based on strabismus data corresponding to the first eye and a personalized visual comfort zone. Adjusting the position of each virtual camera causes the relative position of the virtual cameras corresponding to the two display modules to be adjusted. In some embodiments, when the strabismus type indicates horizontal strabismus (i.e., esotropia or exotropia), the module configuration parameters may include the rendered interpupillary distance (IPD). This IPD is a parameter for adjusting the relative positions of the virtual cameras corresponding to the two display modules. Accordingly, in actual use, the near-eye display device can generate an image corresponding to each display module based on the adjusted IPD, thereby controlling the display modules to display the corresponding images.

[0115] In this embodiment, by adjusting the parameters of the virtual camera corresponding to the user's eye, the effect of a prism in traditional ophthalmology can be simulated. In traditional ophthalmology, a prism refracts light to shift the image, helping the strabismic eye to focus the image onto the center of the retina, thereby eliminating double vision and promoting the fusion of images seen by the left and right eyes. In near-eye display devices, software algorithms can be used to adjust the parameters of the virtual camera and digitally shift the image generated by the virtual camera, achieving a similar effect to a physical prism and reducing the fusion burden on the brain. This can alleviate double vision and visual fatigue experienced by strabismic users when using near-eye display devices, indirectly improving the user's visual clarity and comfort.

[0116] In some embodiments, the module configuration parameters include parameters for adjusting the relative positions of the two display modules. For example, the calibration device can adjust the position of the display module corresponding to the first eye in a near-eye display device based on strabismus data corresponding to the first eye and a personalized visual comfort zone. Adjusting the position of each display module causes an adjustment in the relative position of the two display modules. In some embodiments, when the strabismus type indicates horizontal strabismus (i.e., esotropia or exotropia), the module configuration parameters may include the device interpupillary distance (IPD). This IPD is a parameter used to adjust the relative positions of the two display modules.

[0117] In this embodiment, by adjusting the position of the display module corresponding to the user's eyes, the optical center of the display module can be better aligned with the visual axis of the target user. This keeps the target user's visual range within the eye box of the near-eye display device, making it easier for the target user to obtain a clear and complete image and improving the display effect of the near-eye display device for the target user.

[0118] In some embodiments, the near-eye display device may have default module configuration parameters. These default parameters may indicate the default positions of the two display modules and the default parameters of the virtual cameras corresponding to those modules. The calibration device can perform personalized calibration based on these default module configuration parameters, taking into account the actual eye condition of the target user, and adjust the positions of the display modules and the parameters of the virtual cameras.

[0119] In some embodiments, the calibration device can determine the degree of adjustment of the display module and / or virtual camera based on the strabismus of the first eye. In some embodiments, the calibration device can perform steps s31 to s33 to adjust the module configuration parameters of the near-eye display device based on the strabismus data corresponding to the first eye and the personalized visual comfort zone.

[0120] Step s31: Based on the strabismus of the first eye and the personalized visual comfort zone, determine the eye position offset of the first eye relative to the personalized visual comfort zone.

[0121] Here, the perceptual eye position of the first eye can refer to the original perceptual eye position of the first eye before correction by a near-eye display device. This perceptual eye position can correspond to the degree of strabismus of the first eye. For example, such as... Figure 7 As shown, the perceptual eye position of the first eye can correspond to the strabismus direction of the first eye, which can be determined based on the strabismus degree P of the first eye.

[0122] The eye position deviation of the primary eye relative to the personalized visual comfort zone can be the minimum difference between the strabismus of the primary eye and the angle contained within that personalized visual comfort zone. This eye position deviation can be used as a correction for the primary eye's perceived eye position. For an example, please refer to [link to example]. Figure 7 The primary eye's perceived eye position is compared to the personalized visual comfort zone (such as...). The eye position offset can be .

[0123] Step s32: Based on the eye position offset, determine the pupillary distance adjustment amount.

[0124] The calibration device can correct the perceived eye position of the first eye by adjusting at least one of the device interpupillary distance or the rendered interpupillary distance of the near-eye display device. Accordingly, the calibration device can convert a determined eye position offset into a corresponding interpupillary distance adjustment amount, so as to perform corresponding interpupillary distance adjustments based on this adjustment amount. In some embodiments, based on the eye position offset corresponding to the first eye, the interpupillary distance adjustment amount corresponding to the first eye can be determined, and this adjustment amount is used for position adjustment of the display module corresponding to the first eye and / or position adjustment of the corresponding virtual camera.

[0125] In some embodiments, a certain geometrical optical relationship exists between the interpupillary distance adjustment and the eye position offset. This interpupillary distance adjustment needs to be determined based on the eye position offset and the exit pupil distance corresponding to the first eye. Accordingly, the calibration device can obtain the exit pupil distance of the display module corresponding to the first eye, where the exit pupil distance characterizes the distance between the display module and its corresponding eye. Based on the eye position offset and the exit pupil distance, the interpupillary distance adjustment is determined according to the geometrical optical relationship. For example, this geometrical optical relationship characterizes the interpupillary distance adjustment. ,in, This indicates the amount of eye position deviation. The exit pupil distance is indicated. In some embodiments, this exit pupil distance can be measured by a distance detection component in the near-eye display device after the target user wears the display device.

[0126] Figure 8 A schematic diagram of the geometric optical relationships in a near-eye display device according to an embodiment of this specification is shown. Assuming the first eye is the target user's right eye, and the first eye is exotropy (i.e., deviated to the right), the corresponding eye position offset is... The exit pupil distance corresponding to the first eye is .like Figure 8 As shown, the calibration equipment needs to be based on this eye position offset. Adjust the position of the display module (including the display screen and lens) corresponding to the first eye in the near-eye display device and / or the position of its virtual camera. Figure 8The image only shows adjustments to the position of the display module, such as changing the center point of the lens in the display module from... Move to The display module moves from the solid line indicated in the diagram to the dashed line indicated in the diagram, and the distance moved is... This refers to the interpupillary distance adjustment. This adjustment modifies the content displayed on the display module, shifting the content intended for the primary eye to the right, thus placing the primary eye's perception within its personalized visual comfort zone. For example, an object that should originally be displayed at position w1 on the display module corresponding to the primary eye can be moved to the right and displayed at position w2. This shift angle corresponds to... The angle of movement is This movement is equivalent to moving the object that should have been displayed at position w3 (directly in front of the first eye) to the right and displaying it at position w4. The angle of this movement is... Thus, we can obtain satisfy .

[0127] Step s33: Based on the interpupillary distance adjustment amount, adjust at least one of the device interpupillary distance or the rendering interpupillary distance of the near-eye display device.

[0128] Based on the aforementioned geometric optical relationships, the calibration device determines the interpupillary distance adjustment amount corresponding to the first eye. Furthermore, based on this interpupillary distance adjustment amount, the calibration device can adjust at least one of the device interpupillary distance or the rendered interpupillary distance of the near-eye display device. The rendered interpupillary distance of the near-eye display device has a significant impact on the perceived eye position of the first eye. Based on the aforementioned interpupillary distance adjustment amount, the calibration device can primarily adjust the rendered interpupillary distance of the near-eye display device to adjust the content displayed by the display module.

[0129] In some embodiments, the device interpupillary distance (PIP) of the near-eye display device and the rendered interpupillary distance (IPD) can be adjusted synchronously to keep the human eye within the optically designed eye box, maintaining the clarity of the image viewed by the human eye. This synchronous adjustment can also maintain the sense of scale in the virtual world and the realism of the virtual world in the user's visual perception. For example, the calibration device adjusts the position of the display module corresponding to the first eye and the position of the virtual camera corresponding to the display module based on the PIP adjustment amount corresponding to the first eye, thereby adjusting the device interpupillary distance and the rendered interpupillary distance of the near-eye display device.

[0130] In some embodiments, if the eye box of the near-eye display device is large enough, the user's eyes can see a clear image over a large area. The calibration device can adjust only the rendering interpupillary distance of the near-eye display device for the target user, without adjusting the device interpupillary distance, that is, without adjusting the position of the display module.

[0131] In some embodiments, when adjusting the position of the display module and / or the virtual camera corresponding to the first eye based on strabismus data of the first eye, the calibration device can determine the adjustment direction of the display module and / or the virtual camera based on the strabismus type of the first eye. In some embodiments, when the strabismus type of the first eye is esotropia, its corresponding display module and / or virtual camera should move inward, that is, move closer to another display module. When the strabismus type of the first eye is exotropia, its corresponding display module and / or its virtual camera should move outward, that is, move away from another display module. For example, for Figure 8 In the case of right eye exotropia shown, the corresponding display module needs to be moved to the right to calibrate the near-eye display device.

[0132] In some embodiments, based on strabismus data of the first eye, the calibration device can adjust not only the position of the virtual camera corresponding to the first eye, but also the shooting direction of the virtual camera. The adjustment direction of the shooting direction can be determined based on the strabismus type of the first eye. When the strabismus type of the first eye is esotropia, the shooting direction can be deflected inward from the initial positive state. When the strabismus type of the first eye is exotropia, the shooting direction can be deflected outward from the initial positive state. The degree of adjustment of the shooting direction can be determined based on the strabismus degree of the first eye, such as the deflection angle of the shooting direction being equal to the angle corresponding to the strabismus degree of the first eye.

[0133] The preceding content has focused on adjusting the near-eye display device for the target user's primary eye. For example, for the primary eye, the module configuration parameters of the display module corresponding to the primary eye in the near-eye display device can be adjusted. The same process can be used to adjust the near-eye display device for the target user's secondary eye. For the secondary eye, the module configuration parameters of the display module corresponding to the secondary eye in the near-eye display device can be adjusted.

[0134] In the above embodiments, the calibration device determines the interpupillary distance (IPD) adjustment for the left and right eyes of the target user based on a preset visual comfort rule. Based on the IPD adjustment for each eye, the device IPD and / or rendering IPD of the corresponding display module in the near-eye display device are adjusted. This improves the consistency of visual acuity between the left and right eyes of the strabismic user and keeps the user's perceived eye position within the clinically defined comfort range, thereby reducing visual fatigue.

[0135] The above embodiments are described using the calibration method for a near-eye display device provided in this specification, performed by a calibration device, as an example. In some embodiments, the method can be performed automatically by the near-eye display device. In this case, there is no longer an interaction process between the calibration device and other devices, and other execution processes can remain unchanged. For example, the process of the calibration device controlling the near-eye display device to perform a certain action can be replaced by the near-eye display device performing it directly; the information obtained by the calibration device can be replaced by the information obtained by the near-eye display device.

[0136] In summary, the calibration method for near-eye display devices provided in this manual, tailored to the target user, obtains strabismus data and fusion range corresponding to the user's eyes through interactive visual testing. Based on a preset visual comfort rule, it determines the personalized visual comfort zone corresponding to the eye. Based on this, it adjusts the module configuration parameters of the near-eye display device so that the user's perceived eye position falls within this personalized visual comfort zone. In this way, near-eye display devices can be personalized for different users, adapting to each individual and ensuring that the user's perceived eye position is within the corresponding personalized visual comfort zone during use, thus reducing eye fatigue.

[0137] This specification, in another aspect, provides a computer-readable non-transitory storage medium storing at least one instruction set. When the at least one instruction set is executed by a processor, it instructs the processor to implement the steps of the near-eye display device calibration method P400 described herein. In some possible embodiments, various aspects of this specification can also be implemented as a program product comprising program code. When the program product is run on an electronic device 200, the program code causes the electronic device 200 to perform the steps of the near-eye display device calibration method P400 described herein. The program product for implementing the above method may employ a portable compact disc read-only memory (CD-ROM) containing program code and may run on the electronic device 200. However, the program product of this specification is not limited thereto. In this specification, the readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system. The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of readable storage media include: portable disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. The computer-readable storage medium may include a data signal propagated as part of a carrier wave in baseband, carrying readable program code. This propagated data signal may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A readable storage medium may also be any readable medium other than a readable storage medium that can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. The program code contained on the readable storage medium may be transmitted using any suitable medium, including but not limited to wireless, wired, optical fiber, RF, etc., or any suitable combination thereof. Program code for performing operations of this specification may be written in any combination of one or more programming languages, including object-oriented programming languages—such as Java, C++, etc.—and conventional procedural programming languages—such as the "C" language or similar programming languages. The program code can be executed entirely on electronic device 200, partially on electronic device 200, as a standalone software package, partially on electronic device 200 and partially on a remote computing device, or entirely on a remote computing device.

[0138] The foregoing has described specific embodiments of this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than that shown in the embodiments and may still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are possible or may be advantageous.

[0139] In summary, after reading this detailed disclosure, those skilled in the art will understand that the foregoing detailed disclosure is presented by way of example only and is not restrictive. Although not explicitly stated herein, those skilled in the art will understand that this specification requires various reasonable changes, improvements, and modifications to the embodiments. These changes, improvements, and modifications are intended to be made by this specification and are within the spirit and scope of the exemplary embodiments described herein.

[0140] Furthermore, certain terms in this specification have been used to describe embodiments of this specification. For example, "an embodiment," "an embodiment," and / or "some embodiments" mean that a particular feature, structure, or characteristic described in connection with that embodiment may be included in at least one embodiment of this specification. Therefore, it is to be emphasized and understood that two or more references to "an embodiment" or "an embodiment" or "alternative embodiment" in various parts of this specification do not necessarily refer to the same embodiment. Moreover, specific features, structures, or characteristics may be suitably combined in one or more embodiments of this specification.

[0141] It should be understood that in the foregoing description of the embodiments in this specification, various features are combined in a single embodiment, drawing, or description for the purpose of simplifying the description and to aid in understanding a feature. However, this does not mean that the combination of these features is necessary, and those skilled in the art, upon reading this specification, may readily identify some of the devices as separate embodiments. That is, the embodiments in this specification can also be understood as an integration of multiple secondary embodiments. And the content of each secondary embodiment is valid even if it contains fewer than all the features of a single foregoing disclosed embodiment.

[0142] Every patent, patent application, publication of a patent application, and other material such as articles, books, specifications, publications, documents, articles, etc., cited herein, except for those inconsistent with or conflicting with this document, or those having a restrictive effect on the widest scope of the claims, may be incorporated herein by reference for all purposes now or hereafter associated with this document. Furthermore, in the event of any inconsistency or conflict between the description, definition, and / or use of relevant terms in any material and the description, definition, and / or use of relevant terms in this document, the terms in this document shall prevail.

[0143] Finally, it should be understood that the embodiments disclosed herein are illustrative of the principles of the embodiments described in this specification. Other modified embodiments are also within the scope of this specification. Therefore, the embodiments disclosed in this specification are merely examples and not limitations. Those skilled in the art can implement the applications described in this specification using alternative configurations based on the embodiments in this specification. Therefore, the embodiments in this specification are not limited to the embodiments precisely described in the applications.

Claims

1. A calibration method for a near-eye display device, wherein, The near-eye display device includes two display modules that correspond one-to-one with the user's two eyes, and the method includes: When the near-eye display device is being worn by the target user, the strabismus data and fusion range corresponding to the target user's first eye are obtained through interactive visual testing. Based on the fusion range, and according to a preset visual comfort rule, the personalized visual comfort zone corresponding to the first eye is determined; and Based on the strabismus data and the personalized visual comfort zone, the module configuration parameters of the near-eye display device are adjusted so that the perceived eye position of the first eye falls within the personalized visual comfort zone.

2. The method according to claim 1, wherein, The module configuration parameters include: parameters for adjusting the relative positions of the two display modules, and / or parameters for adjusting the relative positions of the virtual cameras corresponding to the two display modules.

3. The method according to claim 2, wherein, The strabismus data includes a strabismus type, and when the strabismus type indicates horizontal strabismus, the module configuration parameters include at least one of the following: Device interpupillary distance, representing the horizontal distance between the optical centers of the two display modules; or The interpupillary distance (IPD) is used to represent the horizontal distance between the virtual cameras corresponding to the two display modules.

4. The method according to claim 3, wherein, The strabismus data also includes the strabismus degree. Adjusting the module configuration parameters of the near-eye display device based on the strabismus data and the personalized visual comfort zone includes: Based on the strabismus and the personalized visual comfort zone, determine the eye position offset of the first eye relative to the personalized visual comfort zone. Based on the eye position offset, determine the interpupillary distance adjustment amount; and Based on the interpupillary distance adjustment amount, at least one of the device interpupillary distance or the rendering interpupillary distance is adjusted.

5. The method according to claim 4, wherein, The step of determining the interpupillary distance adjustment based on the eye position offset includes: Obtain the exit pupil distance of the display module corresponding to the first eye, where the exit pupil distance represents the distance between the display module and its corresponding eye; and Based on the eye position offset and the exit pupil distance, the pupil distance adjustment amount is determined according to geometric optics.

6. The method according to claim 1, wherein, The visual comfort principles include Sheard's principle and / or Percival's principle.

7. The method according to claim 6, wherein, When the visual comfort rules include Sheard's rule and Percival's rule, the process of determining the personalized visual comfort zone corresponding to the first eye based on the fusion range and according to the preset visual comfort rules includes: Based on the fusion range, the first visual comfort zone is determined according to Sheard's rule; Based on the fusion range, and according to Percival's rule, the second visual comfort zone is determined; and The personalized visual comfort zone is determined based on the first visual comfort zone and the second visual comfort zone.

8. The method according to claim 7, wherein, Determining the personalized visual comfort zone based on the first visual comfort zone and the second visual comfort zone includes: The intersection of the first visual comfort zone and the second visual comfort zone is taken as the personalized visual comfort zone.

9. The method of claim 1, further comprising, prior to the interactive visual test: The interpupillary distance of the target user is obtained, and the positions of the two display modules are adjusted based on the interpupillary distance so that the device interpupillary distance of the near-eye display device is equal to the interpupillary distance, wherein the device interpupillary distance represents the horizontal distance between the optical centers of the two display modules.

10. The method according to claim 1, wherein, The strabismus data includes strabismus type and strabismus degree; obtaining the strabismus data corresponding to the first eye of the target user through interactive visual testing includes: The display module corresponding to the first eye is controlled to display a first visual target, and the display module corresponding to the second eye is controlled to display a second visual target, wherein the first visual target and the second visual target are different and correspond to the same imaging position; Output a first prompt message, which prompts the target user to move the first target by operating the handle until the first target and the second target have an overlapping area. Obtain the direction of movement and the first distance of movement of the first target; Based on the direction of movement, determine the strabismus type of the first eye; and Based on the first movement distance, the strabismus of the first eye is determined.

11. The method according to claim 10, wherein, Determining the strabismus angle of the first eye based on the first movement distance includes: Based on the first moving distance and the depth of the imaging position, the strabismus of the first eye is determined, wherein the strabismus is positively correlated with the first moving distance and negatively correlated with the depth.

12. The method according to claim 1, wherein, The fusion range of the target user's first eye is obtained through interactive visual testing, including: The display module corresponding to the first eye is controlled to display a third visual target, and the display module corresponding to the second eye is controlled to display a fourth visual target, wherein the third visual target and the fourth visual target are the same and overlap in the visual perception of the target user; Output a second prompt message, which prompts the target user to move the third visual target towards the nose and temple respectively using the control handle until the third visual target and the fourth visual target are not completely overlapped; and The fusion range of the first eye is determined based on the second movement distance of the third visual target towards the nasal side and the third movement distance towards the temporal side.

13. The method according to claim 12, wherein, The third and fourth visual targets correspond to the same depth at their respective imaging positions; determining the fusion range of the first eye based on the second movement distance of the third visual target towards the nasal side and the third movement distance towards the temporal side includes: The first sub-fusion range is determined based on the second moving distance and the depth of the imaging position; Based on the third moving distance and the depth of the imaging position, the range of the second sub-fusion is determined; and The fusion range of the first eye is determined based on the first sub-fusion range and the second sub-fusion range.

14. A calibration device, communicatively connected to a near-eye display device, comprising: At least one storage medium storing at least one instruction set; as well as At least one processor is communicatively connected to the at least one storage medium, wherein the at least one processor reads the at least one instruction set and executes the method of any one of claims 1 to 13 according to the instructions of the at least one instruction set to calibrate the near-eye display device.

15. A near-eye display device, comprising: Two display modules correspond one-to-one with each of the user's two eyes; At least one storage medium storing at least one instruction set; as well as At least one processor is communicatively connected to the at least one storage medium, wherein the at least one processor reads the at least one instruction set and executes the method of any one of claims 1 to 13 according to the instructions of the at least one instruction set to calibrate the module configuration parameters of the near-eye display device.

16. A computer-readable non-volatile storage medium, wherein, The computer-readable non-volatile storage medium stores at least one instruction set, which, when executed by at least one processor, implements the method as described in any one of claims 1 to 13.

Images