Method and apparatus for adjusting display parameters of electronic viewfinder, and electronic device

Abstract

This invention discloses a method, apparatus, and electronic device for adjusting display parameters of an electronic viewfinder. The method includes: identifying the current viewing eye corresponding to the current object; determining the viewing preference of the current object; detecting whether the current viewing eye is the dominant eye, and if the current viewing eye is not the dominant eye, performing an energy-saving adjustment operation on the current display parameters of the electronic viewfinder based on the viewing preference to obtain energy-saving display parameters; controlling the electronic viewfinder to display according to the energy-saving display parameters, and determining the visual perception state corresponding to the current object; and performing a correction adjustment operation on the energy-saving display parameters based on the visual perception state to obtain corrected display parameters. This invention solves the technical problem in related technologies where it is difficult to adaptively adjust display parameters for different viewing eyes when controlling the display parameters of a camera's electronic viewfinder, leading to poor user experience and wasted power.

Description

Technical Field

[0001] This invention relates to the field of electronic viewfinders for cameras, and more specifically, to a method, apparatus, and electronic device for adjusting the display parameters of an electronic viewfinder. Background Technology

[0002] Camera electronic viewfinders (EVFs) are monocular viewfinders, and their display parameters, such as resolution and refresh rate, are often fixed. When switching between different viewfinders, the same set of display parameters must be used to output the viewfinder image. However, when different users are not comfortable with the fixed display parameters, manual adjustment is often required. Therefore, in related technologies, it is difficult to adaptively adjust the display parameters of camera electronic viewfinders for different viewfinders, leading to poor user experience and wasted power.

[0003] There is currently no effective solution to the above problems. Summary of the Invention

[0004] This invention provides a method, apparatus, and electronic device for adjusting the display parameters of an electronic viewfinder, in order to at least solve the technical problem in the related art that when controlling the display parameters of a camera's electronic viewfinder, it is difficult to adaptively adjust the display parameters for different viewfinder eyes, resulting in poor user experience and wasted power consumption.

[0005] According to one aspect of the present invention, a method for adjusting the display parameters of an electronic viewfinder is provided, comprising: identifying the current viewing eye corresponding to a current object, wherein the viewing eye is the eye of the current object that is close to the electronic viewfinder for framing and viewing in the current state; determining the eye preference of the current object; detecting whether the current viewing eye is the dominant eye of the current object, and obtaining a detection result; if the detection result is that the current viewing eye is not the dominant eye of the current object, performing an energy-saving adjustment operation on the current display parameters of the electronic viewfinder based on the eye preference of the current object, and obtaining energy-saving display parameters corresponding to the electronic viewfinder, wherein the energy-saving adjustment operation is used to reduce the power consumption of the electronic viewfinder; controlling the electronic viewfinder to perform framing and display according to the energy-saving display parameters, and determining the visual perception state corresponding to the current object; and performing a correction adjustment operation on the energy-saving display parameters based on the visual perception state, and obtaining corrected display parameters.

[0006] Optionally, detecting whether the current framing eye is the dominant eye of the current object and obtaining a detection result includes: determining the fixation accuracy and fixation dispersion corresponding to the current framing eye; determining the visual dependence corresponding to the current framing eye based on the fixation accuracy and the fixation dispersion; determining the visual dependence of the other eye of the current object using the same method as determining the visual dependence of the current framing eye; and determining whether the current framing eye is the dominant eye of the current object based on the visual dependence of the current framing eye and the visual dependence of the other eye of the current object.

[0007] Optionally, determining the gaze dispersion corresponding to the current framing eye includes: obtaining a gaze position sequence corresponding to the current framing eye, wherein the gaze position sequence includes multiple gaze point coordinates arranged in chronological order; determining a covariance matrix corresponding to the gaze position sequence based on the spatial distribution relationship between the multiple gaze point coordinates, wherein the elements in the covariance matrix are used to characterize the degree of dispersion of the distribution of the multiple gaze point coordinates; and determining the gaze dispersion corresponding to the current framing eye based on the covariance matrix.

[0008] Optionally, determining the visual dependence corresponding to the current framing eye based on the fixation accuracy and the fixation dispersion includes: determining the pupil diameter corresponding to the current framing eye; and determining the visual dependence corresponding to the current framing eye based on the fixation accuracy, the fixation dispersion, and the pupil diameter.

[0009] Optionally, determining the visual perception state corresponding to the current object includes: determining the eye response state, head response posture, and limb response action of the current object; and determining the visual perception state corresponding to the current object based on the eye response state, the head response posture, and the limb response action.

[0010] Optionally, the eye response states include gaze duration, eye movement frequency, and pupil diameter changes; the head response postures include head adjustment amplitude, head adjustment frequency, and facial orientation changes; and the limb response actions include eye removal actions and parameter adjustment actions.

[0011] Optionally, the step of performing a correction adjustment operation on the energy-saving display parameters based on the visual perception state to obtain corrected display parameters includes: when the visual perception state is a predetermined perception state, determining the callback range corresponding to the energy-saving display parameters, and dividing the callback range into multiple sub-callback ranges, wherein the predetermined perception state is the state when the current object perceives the degradation of the display image quality of the electronic viewfinder; according to the execution order of the multiple sub-callback ranges, using the first sub-callback range to perform a correction adjustment operation on the energy-saving display parameters to obtain a first corrected display parameter, and determining the first perception state of the current object under the first corrected display parameter; and when the first perception state is a predetermined perception state, using the second sub-callback range to perform a correction adjustment operation on the first corrected display parameter to obtain a second corrected display parameter, until a target condition is reached to obtain corrected display parameters, wherein the target condition includes any one of the following: the first occurrence of a target perception state corresponding to a target callback range that is not a predetermined perception state among the multiple sub-callback ranges; or the completion of the execution of the multiple sub-callback ranges.

[0012] According to one aspect of the present invention, an electronic viewfinder display parameter adjustment device is provided, comprising: a first determining module, configured to identify the current viewing eye corresponding to a current object, wherein the viewing eye is the eye of the current object that is close to the electronic viewfinder for framing and viewing in the current state; a second determining module, configured to determine the eye preference of the current object; a third determining module, configured to detect whether the current viewing eye is the dominant eye of the current object, and obtain a detection result; a fourth determining module, configured to perform an energy-saving adjustment operation on the current display parameters of the electronic viewfinder based on the eye preference of the current object when the detection result indicates that the current viewing eye is not the dominant eye of the current object, and obtain energy-saving display parameters corresponding to the electronic viewfinder, wherein the energy-saving adjustment operation is used to reduce the power consumption of the electronic viewfinder; a fifth determining module, configured to determine the visual perception state corresponding to the current object after controlling the electronic viewfinder to perform framing and display according to the energy-saving display parameters; and a sixth determining module, configured to perform a correction adjustment operation on the energy-saving display parameters based on the visual perception state, and obtain corrected display parameters.

[0013] According to one aspect of the present invention, an electronic device is provided, comprising: a processor; and a memory for storing processor-executable instructions; wherein the processor is configured to execute the instructions to implement the display parameter adjustment method for an electronic viewfinder as described in any of the preceding claims.

[0014] According to one aspect of the present invention, a computer-readable storage medium is provided, wherein when the instructions in the computer-readable storage medium are executed by a processor of an electronic device, the electronic device is enabled to perform the display parameter adjustment method for an electronic viewfinder as described above.

[0015] In this embodiment of the invention, by identifying the current viewing eye corresponding to the current object, it is possible to determine the eye used by the current object to view the electronic viewfinder. Then, by determining the current object's eye preference, display-related preference information adapted to the object can be obtained. Next, it is detected whether the current viewing eye is the dominant eye of the current object, thus distinguishing the type of viewing eye. When the detection result indicates that the current viewing eye is not the dominant eye of the current object, energy-saving adjustment operations are performed on the current display parameters of the electronic viewfinder based on the current object's eye preference to obtain energy-saving display parameters. This reduces power consumption based on the relatively low visual sensitivity of non-dominant eyes. After controlling the electronic viewfinder to display according to the energy-saving display parameters, the visual perception state corresponding to the current object is determined. This captures the user's subjective perception of the image quality after energy saving. Furthermore, based on the visual perception state, a correction adjustment operation is performed on the energy-saving display parameters to obtain corrected display parameters. This compensates for the image quality degradation caused by excessive energy saving, thereby reducing power consumption while maintaining the viewing experience of the current object. This solves the technical problem in related technologies where it is difficult to adaptively adjust display parameters for different viewing eyes when controlling the display parameters of a camera's electronic viewfinder, leading to poor user experience and wasted power. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a flowchart of a method for adjusting the display parameters of an electronic viewfinder according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the display parameter adjustment system architecture of the electronic viewfinder in an optional embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the algorithm layer and parameter configuration of the display parameter adjustment system of the electronic viewfinder in an optional embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the display parameter adjustment process framework of the electronic viewfinder in an optional embodiment of the present invention;

[0021] Figure 5This is a schematic diagram of parameter adjustment when the user perceives a change in the screen in an optional embodiment of the present invention;

[0022] Figure 6 This is a schematic diagram of parameter adjustment in an optional embodiment of the present invention when the user does not perceive the screen change;

[0023] Figure 7 This is a schematic diagram comparing the view of the dominant eye and the non-dominant eye in an optional embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of eye movement recognition in an optional embodiment of the present invention;

[0025] Figure 9 This is a structural block diagram of an electronic viewfinder display parameter adjustment device according to an embodiment of the present invention. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0027] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0028] Example 1

[0029] According to an embodiment of the present invention, an embodiment of a method for adjusting display parameters of an electronic viewfinder is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0030] Figure 1This is a flowchart of a method for adjusting the display parameters of an electronic viewfinder according to an embodiment of the present invention, such as... Figure 1 As shown, the method includes the following steps:

[0031] S102, identify the current viewfinder eye corresponding to the current object, wherein the viewfinder eye is the eye of the current object that is close to the electronic viewfinder for framing and viewing in the current state;

[0032] This involves the current object, which is the object currently using the electronic viewfinder to frame and view the scene. For example, the current object includes the photographer, videographer, and other users who need to view the scene through the electronic viewfinder.

[0033] This involves the current viewing eye, which is the eye of the current object that is close to the electronic viewfinder for viewing in the current state. For example, the current viewing eye includes either the left or right eye. "Close" refers to the positional relationship where the current object's eye is close to the electronic viewfinder eyepiece to achieve the desired viewing image. For example, "close" includes the current object's eye being close to or touching the electronic viewfinder eyepiece.

[0034] This includes electronic viewfinders, which are display devices on cameras used to allow the subject to view the frame up close.

[0035] This involves the current state, which is the state in which the current object is using the electronic viewfinder to take a picture. For example, the current state includes the state in which the current object's face is close to the electronic viewfinder and its eyes are close to the electronic viewfinder eyepiece.

[0036] S104, Determine the current object's visual preferences;

[0037] This involves visual preferences, which are the personalized preferences of the current subject for the display effect when using the eyes to view the electronic viewfinder. For example, visual preferences include brightness preference, contrast preference, sharpness preference, refresh rate preference, color gain preference, and diopter preference.

[0038] S106, detect whether the current viewfinder eye is the dominant eye of the current object, and obtain the detection result;

[0039] This involves the dominant eye, which is the eye that receives the primary visual input when both eyes are viewing the object simultaneously. For example, the dominant eye can be either the left or right eye. When both eyes are viewing the object simultaneously, the dominant eye receives approximately 70% to 80% of the fine visual input, while the non-dominant eye has measurable physiological disadvantages in terms of resolution, contrast sensitivity, and dynamic vision.

[0040] This involves the detection result, which is the judgment result obtained after detecting whether the current framing eye is the dominant eye. For example, the detection result includes whether the current framing eye is the dominant eye of the current object or not.

[0041] S108, if the detection result is that the current viewing eye is not the dominant eye of the current object, based on the current object's eye preference, an energy-saving adjustment operation is performed on the current display parameters of the electronic viewfinder to obtain the corresponding energy-saving display parameters of the electronic viewfinder. The energy-saving adjustment operation is used to reduce the power consumption of the electronic viewfinder.

[0042] This involves energy-saving adjustment operations used to reduce the power consumption of the electronic viewfinder. For example, the energy-saving adjustment operations include at least one of reducing the resolution and reducing the refresh rate.

[0043] This involves energy-saving display parameters, which are the display parameters obtained after performing energy-saving adjustment operations on the current display parameters of the electronic viewfinder. For example, these energy-saving display parameters include reduced resolution and reduced refresh rate.

[0044] S110, after controlling the electronic viewfinder to perform framing and display according to the energy-saving display parameters, determines the visual perception state corresponding to the current object;

[0045] This involves the visual perception state, which is the perceived performance of the current object in terms of image quality after the electronic viewfinder frames the image according to energy-saving display parameters.

[0046] S112, based on the visual perception state, performs a correction and adjustment operation on the energy-saving display parameters to obtain the corrected display parameters.

[0047] This involves correcting display parameters, which are the display parameters obtained after performing a correction adjustment operation on the energy-saving display parameters. For example, the corrected display parameters include at least one of the resolution after the callback and the refresh rate after the callback, so that the current object can view the viewfinder at an acceptable level of image quality.

[0048] Through the above steps S102-S112, by identifying the current viewing eye corresponding to the current object, it is possible to determine the eye used by the current object when viewing the electronic viewfinder; then, by determining the current object's eye preference, display-related preference information adapted to the object can be obtained; next, it is detected whether the current viewing eye is the dominant eye of the current object to obtain the detection result, which can distinguish the type of viewing eye. When the detection result is that the current viewing eye is not the dominant eye of the current object, energy-saving adjustment operations are performed on the current display parameters of the electronic viewfinder in combination with the current object's eye preference to obtain energy-saving display parameters, which can take into account the relatively low visual sensitivity of non-dominant eyes. By reducing power consumption and controlling the electronic viewfinder to display images according to energy-saving parameters, the system determines the visual perception state corresponding to the current object. This allows the system to capture the user's subjective perception of the image quality after energy saving. Furthermore, based on the visual perception state, the system performs correction and adjustment operations on the energy-saving display parameters to obtain corrected display parameters. This can compensate for the image quality degradation caused by excessive energy saving, thereby reducing power consumption while maintaining the viewing experience of the current object. This solves the technical problem in related technologies where it is difficult to adaptively adjust the display parameters for different viewing eyes when controlling the display parameters of the camera's electronic viewfinder, resulting in poor user experience and wasted power.

[0049] As an optional embodiment, detecting whether the current viewing eye is the dominant eye of the current object and obtaining the detection result includes: determining the fixation accuracy and fixation dispersion corresponding to the current viewing eye; determining the visual dependence corresponding to the current viewing eye based on the fixation accuracy and fixation dispersion; determining the visual dependence of the other eye of the current object using the same method as determining the visual dependence of the current viewing eye; and determining whether the current viewing eye is the dominant eye of the current object based on the visual dependence of the current viewing eye and the visual dependence of the other eye of the current object.

[0050] This involves fixation accuracy, which is a parameter characterizing the accuracy of the fixation point corresponding to the current framing eye. For example, fixation accuracy can be determined based on the angle between the current framing eye's fixation direction and the target direction. The smaller the angle, the more accurate the current framing eye's pointing to the target.

[0051] This involves gaze dispersion, which is a parameter characterizing the degree of dispersion of the coordinate distribution of multiple gaze points corresponding to the current framing eye. For example, gaze dispersion can be determined based on the trace of the covariance matrix determined by the gaze position sequence corresponding to the current framing eye. The smaller the trace of the covariance matrix, the more concentrated the gaze points corresponding to the current framing eye are; the larger the trace of the covariance matrix, the more dispersed the gaze points corresponding to the current framing eye are.

[0052] This includes visual dependence, which is a parameter that characterizes the degree to which the current viewing eye depends on visual input during the viewing process.

[0053] This involves the other eye of the current object, which is the other eye of the current object besides the current viewing eye. For example, if the current viewing eye is the left eye, the other eye of the current object is the right eye, and if the current viewing eye is the right eye, the other eye of the current object is the left eye. Its main function is to serve as a detection object to determine its visual dependence, and to compare it with the visual dependence of the current viewing eye.

[0054] In this embodiment, by determining the fixation accuracy and fixation dispersion of the current viewing eye, the accuracy of the fixation point of the current viewing eye and the dispersion of the coordinate distribution of multiple fixation points corresponding to the current viewing eye can be obtained respectively. Then, based on the fixation accuracy and fixation dispersion, the visual dependence of the current viewing eye is determined, quantifying the visual dependence of the current viewing eye on visual input during viewing from multiple dimensions. Then, the visual dependence of the other eye of the current object is determined by determining the visual dependence of the current viewing eye. Under the same quantitative standard, the dependence of the other eye of the current object on visual input can be obtained. Since the dominant eye bears the main visual input when both eyes are viewing at the same time, and the non-dominant eye has a measurable physiological disadvantage, determining whether the current viewing eye is the dominant eye of the current object based on the visual dependence of the current viewing eye and the visual dependence of the other eye of the current object can accurately distinguish whether the current viewing eye is the dominant eye or not. This provides a reliable basis for subsequent energy-saving adjustment of the current display parameters of the electronic viewfinder based on the eye preference of the current object when the current viewing eye is not the dominant eye of the current object.

[0055] As an optional embodiment, determining the gaze dispersion corresponding to the current framing eye includes: obtaining a gaze position sequence corresponding to the current framing eye, wherein the gaze position sequence includes multiple gaze point coordinates arranged in chronological order; determining a covariance matrix corresponding to the gaze position sequence based on the spatial distribution relationship between the multiple gaze point coordinates, wherein the elements in the covariance matrix are used to characterize the degree of dispersion of the distribution of the multiple gaze point coordinates; and determining the gaze dispersion corresponding to the current framing eye based on the covariance matrix.

[0056] This involves a gaze position sequence, which is a sequence of multiple gaze point coordinates arranged in chronological order corresponding to the current viewing eye. For example, the gaze position sequence includes multiple gaze point coordinates arranged in chronological order.

[0057] This involves multiple gaze point coordinates, which are the position coordinates of the gaze point corresponding to the current viewing eye during the gaze process.

[0058] This involves a covariance matrix, which is a matrix determined based on the spatial distribution relationship between multiple gaze coordinates. For example, the elements in the covariance matrix are used to characterize the degree of dispersion of the distribution of multiple gaze coordinates.

[0059] This involves the spatial distribution relationship between multiple gaze point coordinates, which is used to represent the degree of dispersion of the multiple gaze point coordinates on the electronic viewfinder display screen. For example, it includes the degree of dispersion of the multiple gaze point coordinates in the horizontal and vertical directions, or the covariance between different coordinate dimensions of the multiple gaze point coordinates.

[0060] In this embodiment, by acquiring the gaze position sequence corresponding to the current viewing eye, the position change of the current viewing eye during the gaze process can be completely recorded in the form of multiple gaze point coordinates arranged in chronological order. Since the spatial distribution relationship between multiple gaze point coordinates is used to represent the degree of dispersion of the multiple gaze point coordinates on the electronic viewfinder display, determining the covariance matrix corresponding to the gaze position sequence based on the spatial distribution relationship between multiple gaze point coordinates can unify the degree of dispersion of the multiple gaze point coordinates in the horizontal and vertical directions, as well as the covariance between different coordinate dimensions of the multiple gaze point coordinates, into the covariance matrix used to represent... This method uses elements representing the dispersion of multiple fixation point coordinates to simultaneously characterize the dispersion of multiple fixation point coordinates in each coordinate dimension and the correlation between different coordinate dimensions in matrix form. This avoids the inability to fully reflect the dispersion of fixation point distribution by relying solely on the distribution in a single direction. Furthermore, based on the covariance matrix, the fixation dispersion corresponding to the current framing eye is determined. This allows the elements representing the dispersion of multiple fixation point coordinates in the covariance matrix to be further quantified into the fixation dispersion of the current framing eye. This provides a reliable basis for subsequently determining the visual dependence of the current framing eye based on the fixation dispersion, and thus determining whether the current framing eye is the dominant eye of the current object.

[0061] As an optional embodiment, the visual dependence corresponding to the current framing eye is determined based on the fixation accuracy and fixation dispersion, including: determining the pupil diameter corresponding to the current framing eye; and determining the visual dependence corresponding to the current framing eye based on the fixation accuracy, fixation dispersion, and pupil diameter.

[0062] This includes pupil diameter, which is the size of the pupil of the current viewing eye during fixation. For example, the pupil diameter can be a normalized pupil diameter. The eye with a larger pupil receives a slight bonus in the score. Its main function is to serve as an auxiliary correction item for determining the visual dependence of the current viewing eye.

[0063] In this embodiment, pupil diameter reflects the size of the pupil of the current viewing eye during fixation; specifically, it can be a normalized pupil diameter. The eye with a larger pupil receives a slight bonus in the score. Since fixation accuracy and fixation dispersion characterize the fixation characteristics of the current viewing eye from two dimensions—pointing precision and fixation point concentration—and pupil diameter can serve as an auxiliary correction term to supplement the fixation characteristics characterized by these two dimensions, determining the visual dependence of the current viewing eye based on fixation accuracy, fixation dispersion, and pupil diameter allows for a more comprehensive and accurate characterization of the current viewing eye's dependence on visual input during viewing. This provides a reliable basis for subsequently determining whether the current viewing eye is the dominant eye of the current object based on the visual dependence of the current viewing eye and the visual dependence of the other eye of the current object.

[0064] In this embodiment, the pupil diameter subconsciously changes with cognitive load and visual attention level. An eye with a larger pupil indicates that it subconsciously invests more visual attention during viewing. Therefore, considering the pupil diameter in addition to fixation accuracy and fixation dispersion allows the pupil diameter to be used as an auxiliary correction term to supplement the fixation characteristics characterized solely by fixation accuracy and fixation dispersion. This avoids the inability to reflect the differences in visual attention investment of the current viewing eye based solely on fixation accuracy, fixation dispersion, and pupil diameter. As a result, the visual dependence of the current viewing eye determined based on fixation accuracy, fixation dispersion, and pupil diameter more comprehensively and accurately represents the degree of dependence of the current viewing eye on visual input during viewing. This provides a reliable basis for subsequently determining whether the current viewing eye is the dominant eye of the current object based on the visual dependence of the current viewing eye and the visual dependence of the other eye of the current object.

[0065] As an optional embodiment, determining the visual perception state corresponding to the current object includes: determining the eye response state, head response posture, and limb response action of the current object; and determining the visual perception state corresponding to the current object based on the eye response state, head response posture, and limb response action.

[0066] This involves eye response state, which is the response state exhibited by the eyes of the current object while viewing the electronic viewfinder. For example, the eye response state includes fixation duration, eye movement frequency, and pupil diameter changes.

[0067] This involves head response posture, which is the response posture exhibited by the head of the current object while viewing the electronic viewfinder. For example, the head response posture includes the head adjustment amplitude, head adjustment frequency, and facial orientation changes.

[0068] This involves limb response actions, which are the limb responses exhibited by the subject while viewing the electronic viewfinder. For example, these limb response actions include eye-away actions and parameter adjustment actions.

[0069] In this embodiment, the eye response state reflects the response state exhibited by the eyes of the current object while viewing the electronic viewfinder, the head response posture reflects the response posture exhibited by the head of the current object while viewing the electronic viewfinder, and the limb response action reflects the response action exhibited by the limbs of the current object while viewing the electronic viewfinder. Since the eye response state, head response posture, and limb response action respectively reflect the current object's subjective perception of the image quality displayed by the electronic viewfinder from three dimensions (eyes, head, and limbs), determining the visual perception state corresponding to the current object based on the eye response state, head response posture, and limb response action can comprehensively determine the current object's subjective perception of the image quality after energy saving from multiple dimensions. This avoids false triggering caused by signal noise in a single dimension, thereby providing a reliable basis for subsequent correction and adjustment operations of energy-saving display parameters based on the visual perception state.

[0070] As an optional embodiment, eye response states include fixation duration, eye movement frequency, and pupil diameter changes; head response postures include head adjustment amplitude, head adjustment frequency, and facial orientation changes; and limb response actions include eye-away actions and parameter adjustment actions.

[0071] This includes gaze duration, which is the length of time a subject continuously gazes at the content on the screen while viewing the electronic viewfinder. For example, gaze duration includes abnormally prolonged gaze duration. Its main function is to identify whether the subject is making an effort to recognize the content on the screen.

[0072] This involves eye movement frequency, which is the frequency with which the subject's eyes move while viewing the electronic viewfinder. For example, the eye movement frequency includes changes in eye movement frequency, and its main function is to identify whether the subject is trying to recognize the content of the image.

[0073] This involves changes in pupil diameter, which refers to the changes in the pupil diameter of the current subject while viewing the electronic viewfinder. For example, these changes include involuntary pupil dilation responses when cognitive load increases. The main function of this method is to serve as a physiological indicator for assessing whether the current subject perceives image quality degradation.

[0074] This involves head response posture, which is the response posture exhibited by the head of the current object when viewing the electronic viewfinder. For example, the head response posture includes the head adjustment amplitude, head adjustment frequency, and facial orientation changes. Its main function is to serve as one of the bases for determining the visual perception state corresponding to the current object.

[0075] This involves the head adjustment range, which is the extent to which the current subject adjusts their head while viewing the electronic viewfinder. For example, the head adjustment range includes the adjustment range of head position or angle. Its main function is to determine whether the current subject is subconsciously adjusting their posture due to visual discomfort.

[0076] This involves the head adjustment frequency, which is the frequency with which the subject adjusts their head while viewing the electronic viewfinder. For example, the head adjustment frequency includes the number of head adjustments per unit time. Its main function is to determine whether the subject is subconsciously adjusting their posture due to visual discomfort.

[0077] This involves changes in facial orientation, which refers to the changes in the orientation of the subject's face while viewing the electronic viewfinder. For example, the changes in facial orientation include the changes in the orientation of the face relative to the electronic viewfinder. The main function is to determine whether the subject is subconsciously adjusting their posture due to visual discomfort.

[0078] This involves limb response actions, which are the limb responses exhibited by the current object while viewing the electronic viewfinder. For example, these limb response actions include eye-movement actions and parameter adjustment actions, and their main function is to serve as one of the bases for determining the visual perception state corresponding to the current object.

[0079] This involves eye-away actions, which are actions by which the subject moves their eyes away from the electronic viewfinder while viewing it. For example, this eye-away action includes frequently moving the eyes away from the EVF, and its main function is to serve as a clear signal that the subject has failed to meet its needs.

[0080] This involves parameter adjustment actions, which are actions taken by the current object to actively adjust relevant parameters of the electronic viewfinder while viewing it. For example, these parameter adjustment actions include actively touching the diopter adjustment dial, which serves as a clear signal that the current object has failed to meet its needs.

[0081] In this embodiment, eye response states include fixation duration, eye movement frequency, and pupil diameter changes; head response postures include head adjustment amplitude, head adjustment frequency, and facial orientation changes; and limb response actions include eye-away actions and parameter adjustment actions. Since fixation duration, eye movement frequency, and pupil diameter changes reflect whether the current subject is struggling to recognize the image content or has noticed image quality degradation from three aspects: fixation duration, eye movement frequency, and pupil physiological response, respectively, and head adjustment amplitude, head adjustment frequency, and facial orientation changes reflect whether the current subject is experiencing visual impairment due to eye movement, respectively, from three aspects: the amplitude and frequency of head adjustment and facial orientation, respectively, they reflect whether the current subject is experiencing visual impairment due to eye movement. When discomfort is felt, subconscious posture adjustments are made. Eye-moving and parameter adjustment actions reflect clear signals that the current object has failed to meet its needs, respectively, from the perspectives of eye-moving and active parameter adjustment. Therefore, by using the above-mentioned multi-dimensional signals, including eye response state, head response posture, and limb response actions, to determine the visual perception state corresponding to the current object, it is possible to comprehensively judge whether the current object has perceived the degradation of the electronic viewfinder's display quality from multiple dimensions of eyes, head, and limbs. This avoids false triggering caused by single-dimensional signal noise and provides a reliable basis for subsequent correction and adjustment operations of energy-saving display parameters based on the visual perception state.

[0082] As an optional embodiment, based on the visual perception state, a correction adjustment operation is performed on the energy-saving display parameters to obtain the corrected display parameters. This includes: when the visual perception state is a predetermined perception state, determining the callback range corresponding to the energy-saving display parameters, and dividing the callback range into multiple sub-callback ranges, wherein the predetermined perception state is the state when the current object perceives the degradation of the display image quality of the electronic viewfinder; according to the execution order of the multiple sub-callback ranges, using the first sub-callback range, performing a correction adjustment operation on the energy-saving display parameters to obtain the first corrected display parameters, and determining the first perception state of the current object under the first corrected display parameters; and when the first perception state is the predetermined perception state, using the second sub-callback range, performing a correction adjustment operation on the first corrected display parameters to obtain the second corrected display parameters, until a target condition is reached to obtain the corrected display parameters, wherein the target condition includes any of the following: the first occurrence of a target perception state corresponding to the target callback range among the multiple sub-callback ranges is not the predetermined perception state; or the execution of the multiple sub-callback ranges is completed.

[0083] This involves a predetermined perception state, which is the state when the current object perceives the degradation of the display quality of the electronic viewfinder. For example, the predetermined perception state includes the current object's awareness of the degradation of the display quality through at least one of eye response state, head response posture, and limb response action. Its main function is to serve as a condition for triggering the correction and adjustment operation of the energy-saving display parameters.

[0084] This involves the range of callback amplitude, which is the range of callback amplitudes allowed when performing correction and adjustment operations on energy-saving display parameters. For example, the range of callback amplitude includes the range of parameter differences between energy-saving display parameters and optimal display parameters (such as the display parameters corresponding to the dominant eye).

[0085] This involves multiple sub-callback ranges, which are the callback intervals obtained by dividing the callback range.

[0086] This involves a first corrected display parameter, which is a display parameter obtained after performing a correction adjustment operation on the energy-saving display parameter using a first sub-callback amplitude. For example, the first corrected display parameter includes at least one of the resolution, refresh rate, etc., after being callback using the first sub-callback amplitude.

[0087] This involves a first perception state, which is the perception state exhibited by the current object under the first modified display parameters.

[0088] This involves a second corrected display parameter, which is a display parameter obtained after performing a correction adjustment operation on the first corrected display parameter using a second sub-callback amplitude. For example, the second corrected display parameter includes at least one of the resolution, refresh rate, etc., after being callback using the second sub-callback amplitude.

[0089] This involves target conditions, which are the conditions that must be met to stop the correction and adjustment operation on the energy-saving display parameters. For example, the target conditions include either the first occurrence of a target callback amplitude in a plurality of sub-callback amplitudes that the target perception state is not a predetermined perception state, or the completion of the execution of a plurality of sub-callback amplitudes, which serve as the basis for the termination judgment of obtaining the corrected display parameters.

[0090] This involves the target callback amplitude, which is the sub-callback amplitude corresponding to the first occurrence of the target perception state not being the predetermined perception state among multiple sub-callback amplitudes.

[0091] In this embodiment, when the visual perception state is a predetermined perception state, i.e., the current object perceives a degradation in the display quality of the electronic viewfinder, the callback range corresponding to the energy-saving display parameter is determined and divided into multiple sub-callback ranges. This allows the one-time parameter callback to be broken down into multiple callback steps applied sequentially. Since the current object's tolerance for image quality degradation varies from person to person and is affected by factors such as ambient light, the dynamic range of the image, and the fatigue state of the current object, a fixed value cannot be preset. Therefore, according to the execution order of the multiple sub-callback ranges, the first sub-callback range is used to perform a correction adjustment operation on the energy-saving display parameter to obtain the first corrected display parameter, and the current object is determined under the first corrected display parameter. The first perception state is then used, and if the first perception state is a predetermined perception state, the second sub-callback amplitude is used to continue the correction and adjustment operation on the first corrected display parameters to obtain the second corrected display parameters. This can continuously approach the acceptable level of the current object in a step-by-step callback manner until the target condition is reached, that is, when the target perception state corresponding to the target callback amplitude is not the predetermined perception state for the first time among multiple sub-callback amplitudes, or when all sub-callback amplitudes have been executed, the corrected display parameters are obtained. This reduces power consumption while restoring the display parameters to within the imperceptible boundary of the current object, avoiding excessive image quality due to excessive callback amplitude or insufficient callback amplitude causing the current object to still perceive image quality degradation, thus taking into account the viewing experience of the current object.

[0092] Based on the above embodiments and optional embodiments, an optional implementation method is provided, which is described in detail below.

[0093] Camera electronic viewfinders (EVFs) are monocular, and their display parameters, such as resolution and refresh rate, are often fixed. When switching between different viewfinders, the same set of display parameters must be used to output the view. If different users are not comfortable with the fixed display parameters, manual adjustment is often required. Therefore, in related technologies, it is difficult to adaptively adjust the display parameters for different viewfinders (e.g., whether they are for different users or whether the viewfinder is the dominant eye), leading to poor user experience and wasted power.

[0094] There is currently no effective solution to the above problems.

[0095] In view of this, an optional embodiment of the present invention provides a method and system for adjusting the display parameters of an electronic viewfinder, which can effectively solve the above-mentioned technical problems.

[0096] Figure 2 This is a schematic diagram of the display parameter adjustment system architecture of the electronic viewfinder in an optional embodiment of the present invention, such as... Figure 2As shown, the electronic viewfinder display parameter adjustment system is used to implement the method of adjusting the display parameters of the electronic viewfinder. Specifically, the hardware layer of the system includes a viewfinder eye recognition module, a diopter adjustment module, and an electronic viewfinder (EVF) display module. The viewfinder eye recognition module includes an infrared light source (IR LED) and a miniature camera. LEDs provide infrared illumination for the miniature camera, which (integrated into the eyepiece side of the EVF) captures images of the eye for framing eye recognition, such as determining the current framing eye (left / right) and user identity (through biometrics such as iris scans) using image recognition algorithms. The diopter adjustment module includes a stepper motor module and a movable lens group. The stepper motor module drives the movable lens group to move to achieve diopter adjustment, such as automatically driving the lens to move based on the identified user identity and preset diopter preferences to achieve sharpness matching. The EVF display module includes an organic light-emitting diode (OLED) screen and a driving circuit. The driving circuit drives the OLED screen for framing display, such as dynamically adjusting the EVF's refresh rate, resolution, brightness, and peak focus color parameters based on the framing eye and scene.

[0097] Figure 3 This is a schematic diagram of the algorithm layer and parameter configuration of the display parameter adjustment system of the electronic viewfinder in an optional embodiment of the present invention, as shown below. Figure 3 As shown, the architecture includes an algorithm layer and parameter configuration. The algorithm layer includes a viewfinder eye recognition module, a diopter adjustment module, and an electronic viewfinder display module. The viewfinder eye recognition module includes a viewfinder eye recognition algorithm used for eye detection, left / right eye classification, and iris feature extraction. The diopter adjustment module includes a diopter calculation algorithm used for user identity matching and diopter mapping. The electronic viewfinder display module includes a scene adaptation algorithm used for brightness analysis, motion detection, and scene classification. The parameter configuration includes a user profile library, a scene parameter library, and a strategy configuration library. The user profile library includes user ID (Identity Document), diopter preference, dominant eye marker, and usage history. The scene parameter library includes low-light parameters, motion parameters, and standard parameters. The strategy configuration library includes power-saving strategies, image quality strategies, and balance strategies. An example of executing core logic is shown below.

[0098] Viewfinder eye recognition and recording: Real-time monitoring of eye movement as it approaches the EVF. Once detected, recognition is immediately initiated to determine the current viewfinder eye.

[0099] Dynamic parameter adjustment, including:

[0100] Automatic diopter compensation: Matches user identity and automatically adjusts diopter;

[0101] Non-dominant eye optimization strategy: When it is identified that the user is using a non-habitual viewing eye, the refresh rate or resolution of the EVF is appropriately reduced in a range that is difficult for the user to perceive, in order to save power consumption.

[0102] Scene Adaptive: Dynamically adjusts the brightness, contrast, and peak focus color of the EVF according to the shooting scene (such as low light or motion) to improve the framing experience;

[0103] Dynamic adaptation to viewfinder switching: Periodically determines whether the viewfinder has switched, and immediately resets all parameters of the EVF once a switch is detected.

[0104] Figure 4 This is a schematic diagram of the display parameter adjustment process framework of the electronic viewfinder in an optional embodiment of the present invention, as shown below. Figure 4 As shown, the process includes: identifying the current viewing eye, querying the current user's eye preference, and determining whether the current viewing eye is the dominant eye; if the determination result is negative, activating power-saving mode and performing at least one of the following: reducing resolution, reducing refresh rate (120→60Hz), and reducing the display area, where reducing resolution is an example: Full HD (FHD) → High Definition (HD); if the determination result is positive, activating fidelity mode and performing at least one of the following: maintaining optimal EVF, highest refresh rate at full resolution, and standard color at maximum brightness; then detecting whether the user notices it, and if the user notices it, restoring / reverting to an acceptable level for the user.

[0105] Taking the current object as the target user as an example, the following is a detailed description.

[0106] S1, identify the current framing eye of the target user, where the framing eye is the eye of the target user that is close to the electronic viewfinder to take a picture in the current state;

[0107] For example, a miniature infrared camera, an infrared light-emitting diode (LED), and a dichroic prism can be used to identify the current viewfinder and the identity of the target user.

[0108] For example, before identifying the current viewfinder corresponding to the target user, including user identification, when the user is detected to be using the camera for the first time, registration needs to be completed (initialization phase, completed in one go). Table 1 is a schematic diagram of user A's registration operation, as shown in Table 1.

[0109] Table 1

[0110]

[0111] At this point, User A's profile already contains two separate iris templates for the left and right eyes. Because the iris images for the left and right eyes are different, they need to be registered separately. During the data collection process, the system will prompt the user to "look through the viewfinder with your left eye" and "look through the viewfinder with your right eye," and then take and save the images separately.

[0112] For example, each time the user's eye approaches the EVF, the system first matches whether the current viewing eye is the left or right eye. Table 2 shows an illustration of the matching method.

[0113] Table 2

[0114]

[0115] The left eye only matches the left eye template, and the right eye only matches the right eye template, because the irises of the left and right eyes are different and cannot be used interchangeably.

[0116] S2, determine the visual preferences of the target users;

[0117] For example, visual preferences include brightness preference, contrast preference, sharpness preference, refresh rate preference, color gain preference, and diopter preference.

[0118] For example, after a target user completes registration by bringing their left and / or right eyes close to the electronic viewfinder, their left and / or right eye iris signature, refractive error preference, dominant eye marker, and usage history are stored in the target user profile. When the target user uses the electronic viewfinder again, the target user profile is queried based on the identified target user identity to determine the target user's eye preferences.

[0119] S3, detect whether the current viewfinder eye is the dominant eye of the target user, and obtain the detection result;

[0120] For example, when both eyes are viewing simultaneously, the dominant eye receives approximately 70%–80% of the fine visual input, while the non-dominant eye exhibits measurable physiological disadvantages in resolution, contrast sensitivity, and dynamic vision. To address this, parameters on the non-dominant eye side can be adjusted to a certain extent without producing a perceptible difference in the target user's visual cortex. Therefore, it is necessary to detect whether the currently viewing eye is the target user's dominant eye for subsequent parameter adjustments.

[0121] For example, if both left-eye and right-eye data exist in the target user's profile, time-series comparison is initiated. Based on data such as gaze direction and gaze stability, the gaze accuracy of the left and right eyes is compared to determine the target user's dominant eye. If only left-eye or only right-eye data exists in the target user's profile, the data is insufficient, and the target user's dominant eye is not determined at this time. In this case, data from the other eye of the target user can be collected. Once both left-eye and right-eye data are available in the target user's profile, time-series comparison is initiated again. Based on data such as gaze direction and gaze stability, the gaze accuracy of the left and right eyes is compared to determine the target user's dominant eye.

[0122] Using user A and user B as examples:

[0123] During the registration phase, User A's left eye is brought close to the electronic viewfinder, and the left eye iris feature code Code_L(A) is extracted. User A's right eye is brought close to the electronic viewfinder, and the right eye iris feature code Code_R(A) is extracted. User B's left eye is brought close to the electronic viewfinder, and the left eye iris feature code Code_L(B) is extracted. User B's right eye is brought close to the electronic viewfinder, and the right eye iris feature code Code_R(B) is extracted. The left and right eye iris feature codes Code_L(A) and Code_R(A) of User A are stored in User A's profile, and the left and right eye iris feature codes Code_L(B) and Code_R(B) of User B are stored in User B's profile. The left and right eye iris templates are stored independently.

[0124] During daily use, when user X's left eye is close to the electronic viewfinder, the left eye iris feature code Code_L(X) is extracted and compared with all left eye iris feature codes Code_L in the database one by one. For example, if user X is user A, user A is found and the "user A's left eye" data is recorded.

[0125] During daily use, when user X's right eye is close to the electronic viewfinder, the right eye iris feature code Code_R(X) is extracted and compared with all right eye iris feature codes Code_R in the database. For example, if user X is user B, user B is found and the "user B's right eye" data is recorded.

[0126] In this process, the irises of the left and right eyes are different, so the left eye will not be mistakenly matched to the right eye template, and vice versa. In the dominant eye determination stage, the left eye data and the right eye data have been collected in the user A profile. Time series comparison is started to determine the dominant eye of user A. The user B profile only has right eye data, which is insufficient. Therefore, the dominant eye of user B is not determined for the time being. Instead, the left eye data of user B is collected. After the data is collected, time series comparison is started to determine the dominant eye of user B.

[0127] Specifically, the detection process determines whether the current viewing eye is the dominant eye of the target user, and obtains the detection results, including: determining the fixation accuracy and fixation dispersion corresponding to the current viewing eye; determining the visual dependence corresponding to the current viewing eye based on the fixation accuracy and fixation dispersion; determining the visual dependence of the target user's other eye using the same method as determining the visual dependence of the current viewing eye; and determining whether the current viewing eye is the dominant eye of the target user based on the visual dependence of the current viewing eye and the visual dependence of the target user's other eye.

[0128] For example, determining the gaze accuracy corresponding to the current framing eye includes: obtaining the angle between the gaze direction corresponding to the current framing eye and the target direction, wherein the smaller the angle, the more accurate the current framing eye is pointing to the target; and determining the gaze accuracy corresponding to the current framing eye based on the angle between the gaze direction of the current framing eye and the target direction, wherein the gaze accuracy is used to characterize the accuracy of the gaze point corresponding to the gaze.

[0129] The fixation accuracy of the current viewing eye is determined based on the angle between the current eye's gaze direction and the target direction. The formula is as follows:

[0130]

[0131] in, For fixation accuracy; The angle between the current viewing direction and the target direction; The preset angle bandwidth parameter is used to control the sensitivity of gaze accuracy (i.e., the included angle). (How large does the angle need to be before fixation accuracy noticeably decreases?) The optimal value is 17.5°.

[0132] Specifically, determining the gaze dispersion corresponding to the current framing eye includes: obtaining the gaze position sequence corresponding to the current framing eye, wherein the gaze position sequence includes multiple gaze point coordinates arranged in chronological order; determining the covariance matrix corresponding to the gaze position sequence based on the spatial distribution relationship between the multiple gaze point coordinates, wherein the elements in the covariance matrix are used to characterize the degree of dispersion of the distribution of the multiple gaze point coordinates; and determining the gaze dispersion corresponding to the current framing eye based on the covariance matrix.

[0133] For example, the spatial distribution relationship between multiple gaze point coordinates is used to represent the degree of dispersion of the distribution of multiple gaze point coordinates on the electronic viewfinder display, such as the degree of dispersion of the distribution of multiple gaze point coordinates in the horizontal and vertical directions, or the covariance between different coordinate dimensions of multiple gaze point coordinates.

[0134] For example, obtain the trace of the covariance matrix, where the trace is the sum of the main diagonal elements of the covariance matrix; based on the trace of the covariance matrix, determine the gaze dispersion corresponding to the current viewing eye, where a smaller trace of the covariance matrix indicates a more concentrated gaze point and a lower gaze dispersion corresponding to the current viewing eye; a larger trace of the covariance matrix indicates a more dispersed gaze point and a higher gaze dispersion corresponding to the current viewing eye.

[0135] The fixation dispersion of the current viewing eye is determined based on the trace of the covariance matrix, using the following formula:

[0136]

[0137] in, This refers to the gaze dispersion. Normalization functions, such as exponential normalization and inverse proportional normalization; The trace of the covariance matrix (the sum of the main diagonals); The preset scattering bandwidth parameter is used to control the sensitivity of fixation dispersion (i.e., how large the trace of the covariance matrix needs to be for fixation dispersion to change significantly).

[0138] Specifically, based on fixation accuracy and fixation dispersion, the visual dependence corresponding to the current framing eye is determined, including: determining the pupil diameter corresponding to the current framing eye; and determining the visual dependence corresponding to the current framing eye based on fixation accuracy, fixation dispersion, and pupil diameter.

[0139] Furthermore, pupil diameter is introduced as an auxiliary correction factor, with eyes having larger pupils receiving a slight bonus in the score. Therefore, based on fixation accuracy, fixation dispersion, and pupil diameter, the visual dependence corresponding to the current viewing eye is determined using the following formula:

[0140]

[0141] in, The visual dependence corresponding to the current viewfinder, i.e., the confidence score; For fixation accuracy; This refers to the gaze dispersion. The pupil diameter (specifically, the normalized pupil diameter); These are the corresponding weights. .

[0142] The current viewfinder is the target user's left eye or right eye.

[0143] The visual dependence of the left eye is expressed as follows:

[0144]

[0145] in, Visual dependence of the left eye; The accuracy of fixation for the left eye; The fixation dispersion of the left eye; The pupil diameter of the left eye (specifically, the normalized pupil diameter).

[0146] The visual dependence of the right eye is represented as:

[0147]

[0148] in, Visual dependence of the right eye; The accuracy of fixation for the right eye; The fixation dispersion of the right eye; The pupil diameter of the right eye (specifically, the normalized pupil diameter).

[0149] Preferably, , , (Directional accuracy has the highest weight, while pupil response has the lowest weight).

[0150] Left eye confidence score Right eye confidence score Compare the results and perform the following judgments based on the comparison outcome:

[0151] like If so, the user's left eye is determined to be the dominant eye;

[0152] like If so, the user's right eye is determined to be the dominant eye;

[0153] like If the result is not satisfactory, the determination will be postponed until more data is accumulated in the next sampling period, at which point the determination will be re-executed.

[0154] in, To pre-set the reliability threshold.

[0155] The eye-tracking camera collects the left eye gaze direction vector, right eye gaze direction vector, left eye gaze position time series, right eye gaze position time series, left eye pupil diameter, and right eye pupil diameter, and obtains the direction vector of the calibration mark in the EVF set by the system. This provides a data basis for determining the gaze accuracy, gaze dispersion, and pupil response score of the left and right eyes respectively. Table 3 is a schematic table of the collected data.

[0156] Table 3

[0157]

[0158] Based on the above, the output determines whether the target user's dominant eye is the left or right eye, and whether the current viewing eye is the dominant eye. Table 4 is a schematic table of the output results, as shown in Table 4.

[0159] Table 4

[0160]

[0161] S4. If the detection result is that the current viewing eye is not the dominant eye of the target user, based on the target user's eye preference, perform energy-saving adjustment operation on the current display parameters of the electronic viewfinder to obtain the corresponding energy-saving display parameters of the electronic viewfinder. The energy-saving adjustment operation is used to reduce the power consumption of the electronic viewfinder.

[0162] Among them, the callback logic used for the dominant eye and the non-dominant eye is completely different, and the essential difference stems from their different roles in the visual pathway.

[0163] The callback of the non-dominant eye is essentially the convergence of the power-saving strategy: within the "unnoticed window" of the non-dominant eye, parameters are tentatively lowered to reduce power consumption. Once a signal of the target user's awareness is detected, the parameters are rolled back to the previous unnoticed level, and this level is recorded as the power-saving benchmark for the target user, forming an adaptive closed loop of "active probing - target user feedback - strategy solidification".

[0164] The callback of the dominant eye is essentially a "performance recovery after external interference": the dominant eye has the highest priority when processing visual information, and in principle, no active power-saving optimizations are performed on this channel, always maintaining the highest image quality output. When a detection signal occurs when the target user uses the dominant eye for framing, the triggering cause must be from external factors—such as drastic changes in ambient light causing the EVF to switch to low-light gain mode, camera overheating triggering thermal management throttling, or parameters not being synchronized after the target user's switch. At this time, the callback goal is to restore performance to the optimal baseline, rather than finding the power-saving boundary. This means that on the dominant eye channel, image quality requirements take precedence over power reduction requirements, without any testing of whether the target user can accept it, but rather restoring all display parameters to the best state supported by the hardware with the highest priority and fastest response speed.

[0165] The differentiated design of the two callback logics mentioned above ensures that the optimal strategy is always adopted in different shooting states: achieving imperceptible power saving on the non-dominant eye side and achieving absolute fidelity on the dominant eye side.

[0166] S5 controls the electronic viewfinder to perform framing and display according to energy-saving display parameters, and then determines the visual perception state corresponding to the target user.

[0167] Specifically, determining the visual perception state corresponding to the target user includes: determining the target user's eye response state, head response posture, and limb response action; and determining the visual perception state corresponding to the target user based on the eye response state, head response posture, and limb response action.

[0168] Specifically, eye response states include fixation duration, eye movement frequency, and pupil diameter changes; head response postures include head adjustment amplitude, head adjustment frequency, and facial orientation changes; and limb response actions include eye movement away and parameter adjustment actions.

[0169] For example, to achieve accurate positioning of the aforementioned "unobtrusive boundary," a miniature infrared camera and multiple sensors are integrated into the eyepiece side of the EVF to capture multidimensional physiological and behavioral signals of the target user in real time. The detection algorithm comprehensively evaluates whether the target user is in a "visually comfortable state" from four dimensions:

[0170] The eye-tracking dimension identifies whether the target user is "trying to recognize" the content on the screen by analyzing abnormally prolonged gaze duration, changes in eye movement frequency, and changes in pupil diameter.

[0171] The pupil response dimension monitors the involuntary pupil dilation response when cognitive load increases, which is an important physiological indicator for assessing whether the target user perceives image quality degradation.

[0172] The head posture dimension detects the frequency of head adjustments and changes in facial orientation to determine whether the target user subconsciously adjusts their posture due to visual discomfort.

[0173] The operational behavior dimension monitors whether the target user actively touches the diopter adjustment dial or frequently moves their eyes away from the EVF. These proactive behaviors are the clearest signals of "failure to meet needs".

[0174] Using the target user's data under optimal parameters as a baseline, a multi-signal fusion judgment strategy is adopted. Only when signals from multiple dimensions, such as abnormal eye movement, pupil dilation, and changes in head posture, simultaneously reach a preset threshold is the judgment that "the target user has noticed" triggered, thereby effectively avoiding false triggering caused by single-signal noise.

[0175] S6, based on the visual perception state, performs a correction and adjustment operation on the energy-saving display parameters to obtain the corrected display parameters.

[0176] Specifically, based on the visual perception state, a correction adjustment operation is performed on the energy-saving display parameters to obtain the corrected display parameters. This includes: when the visual perception state is a predetermined perception state, determining the callback range corresponding to the energy-saving display parameters, and dividing the callback range into multiple sub-callback ranges, wherein the predetermined perception state is the state when the target user perceives a degradation in the display image quality of the electronic viewfinder; according to the execution order of the multiple sub-callback ranges, the first sub-callback range is used to perform a correction adjustment operation on the energy-saving display parameters to obtain the first corrected display parameters, and determining the first perception state of the target user under the first corrected display parameters; and when the first perception state is the predetermined perception state, the second sub-callback range is used to perform a correction adjustment operation on the first corrected display parameters to obtain the second corrected display parameters, until a target condition is reached to obtain the corrected display parameters, wherein the target condition includes any of the following: the first occurrence of a target perception state corresponding to the target callback range in the multiple sub-callback ranges is not the predetermined perception state; or the execution of the multiple sub-callback ranges is completed.

[0177] The range of callback amplitude varies from person to person and is influenced by multiple factors such as ambient lighting, screen dynamics, and the target user's fatigue level, making it impossible to preset a fixed value. Therefore, it is necessary to find a personalized balance point for each target user. Once the aggressiveness of the power-saving strategy exceeds the individual tolerance threshold of the target user, a callback must be triggered immediately to restore the parameters to the target user's imperceptible boundary. This boundary value is then recorded as part of the target user profile for continuous optimization of subsequent strategies.

[0178] For example, when a change in image quality is detected that the user has noticed, different parameter recovery strategies are executed based on the current viewfinder channel (dominant eye / non-dominant eye) to ensure that the operation is always within the user's acceptable boundaries.

[0179] Input: Current viewfinder eye matching flag Comprehensive perception score Current parameters Optimal parameters Historical power saving benchmark ;

[0180] Output: Updated parameters Updated power saving benchmark .

[0181] Control logic:

[0182] Scenario 1: Dominant eye channel ;

[0183] When a change in image quality is detected that the user has noticed it, the dominant eye is highly sensitive to image quality degradation, so the display parameters are restored to the optimal performance baseline in one go with the highest priority, without any compromise or trial and error.

[0184] In other words, once the user notices the issue while the dominant eye is framing the shot, the system immediately restores the optimal image quality, sacrificing power consumption for the user experience.

[0185] Scenario 2: Non-dominant eye channel ;

[0186] When a user is detected to have noticed a change in image quality, the parameters are reverted to the most recent imperceptible level (i.e., the historical power-saving baseline), and this point is recorded as the current user's power-saving boundary.

[0187]

[0188] Table 5 is a schematic table of display parameter configurations for the dominant eye and non-dominant eye, as shown in Table 5.

[0189] Table 5

[0190]

[0191] Figure 5 This is a schematic diagram illustrating parameter adjustments when the user perceives changes in the screen, according to an optional embodiment of the present invention. Figure 6 This is a schematic diagram of parameter adjustment in an optional embodiment of the present invention when the user does not perceive screen changes. The left eye (dominant eye) and right eye (non-dominant eye) are shown. If the user notices a screen change, then... Figure 5 The corresponding parameter adjustment strategy will be implemented if the user does not notice it. Figure 6 Adjust the corresponding parameters.

[0192] Figure 7 This is a schematic diagram comparing the view of the dominant eye and the non-dominant eye in an optional embodiment of the present invention, such as... Figure 7 As shown, (minor differences) cannot be detected by the non-dominant eye. In response, since the current viewing eye is the non-dominant eye and no user awareness is detected, the setting continues to be adjusted tentatively, gradually approaching the individual's power-saving limit. Table 6 is a summary diagram of the three-way control, as shown in Table 6.

[0193] Table 6

[0194]

[0195] in, The adjustment range for the parameter.

[0196] Figure 8 This is a schematic diagram of eye movement recognition in an optional embodiment of the present invention, such as... Figure 8 As shown, the following description, with examples, will provide further details.

[0197] St1, Recognition (Perception Layer);

[0198] For framing and user identification, the required hardware / sensors include: miniature infrared camera, infrared LED, and dichroic prism.

[0199] Specifically, the infrared camera on the eyepiece side of the EVF identifies which eye is currently looking and who is looking, providing input for subsequent decision-making.

[0200] St2, Decision-making (judgment level);

[0201] To perform dominant eye judgment and strategy selection, the required hardware / sensor example is the system main processor (AP).

[0202] Specifically, it determines whether the current viewfinder eye is equal to the user's dominant eye. If it is equal to the dominant eye, no power-saving optimization is performed (dominant eye fidelity). If it is not equal to the dominant eye, it enters power-saving mode (non-dominant eye seamless optimization).

[0203] St3, execute (adjustment layer);

[0204] Lowering EVF parameters, where the required hardware / sensors include: system main processor (AP) and EVF display driver.

[0205] Specifically, in non-dominant eye scenarios, the EVF resolution / refresh rate can be appropriately reduced to achieve power saving.

[0206] St4, monitoring (feedback layer);

[0207] Perform eye movement, pupil, head, and operation monitoring. Examples of required hardware / sensors include: infrared camera and LED (for eye movement / pupil), inertial measurement unit (IMU) / artificial intelligence (AI) chip (for head), and physical buttons / dial (for operation / action).

[0208] Specifically, four-dimensional sensing (eye movement + pupil + head movement + operation) is used to monitor in real time whether the user notices changes in image quality and to determine whether the boundaries have been crossed.

[0209] St5, callback (adjustment layer).

[0210] To perform closed-loop control and parameter adjustment, the required hardware / sensors include: the system main processor (AP).

[0211] Specifically, it includes:

[0212] Undetected: Maintain current power-saving parameters and record them as the baseline;

[0213] Detected: Immediately revert to the previous level of non-perception;

[0214] By forming a closed loop, it is ensured that the system always operates within a boundary that is imperceptible to the user.

[0215] All sensors are highly integrated inside or around the EVF (Electronic Viewfinder) assembly, including:

[0216] Miniature infrared camera: used to capture images of the eye, identify the iris, and perform eye tracking.

[0217] Infrared LED light source: Provides invisible infrared illumination for the camera, ensuring clear capture of eye features under various lighting conditions.

[0218] Specialized dichroic prism: Reflects infrared light onto the sensor while allowing visible light to pass through, ensuring that the viewfinder image is not affected.

[0219] Eyepiece detection sensor (proximity sensor): Detects whether the user's face is close to the EVF to automatically activate or deactivate the system.

[0220] The pupil response monitoring and eye tracking share the same set of infrared camera and infrared LED hardware. By analyzing changes in pupil size and light spot (corneal reflection) in the infrared images, the user's cognitive load can be determined.

[0221] Head posture monitoring is achieved through an IMU (Inertial Measurement Unit) or an AI chip; mirrorless cameras typically have a built-in IMU or AI chip. By detecting minute movements of the camera itself, changes in the user's head posture can be indirectly determined.

[0222] Specifically, operation behavior monitoring can involve monitoring input events from the camera's original physical buttons, dials, and touchscreens, and capturing clear "dissatisfaction" signals by monitoring these input events (such as the user manually adjusting the diopter dial).

[0223] The system receives and processes eye image data from the infrared camera via the main image processor, runs image recognition algorithms, and performs calculations such as eye recognition, iris matching, and eye tracking. The main processor (AP) executes the main decision-making logic, such as determining the dominant eye, implementing power-saving strategies, running monitoring fusion algorithms (comprehensively judging multi-dimensional data such as pupil size, head position, and operation), and generating the final EVF display parameter instructions.

[0224] The above optional implementation methods can achieve at least the following beneficial effects:

[0225] (1) Compared with related technologies, this invention can identify the current viewing eye of the current object, thus clarifying the eye used by the current object when viewing the electronic viewfinder; then, by determining the current object's eye preference, display-related preference information adapted to the object can be obtained; next, by detecting whether the current viewing eye is the dominant eye of the current object, the type of viewing eye can be distinguished. When the detection result is that the current viewing eye is not the dominant eye of the current object, the current display parameters of the electronic viewfinder are adjusted according to the current object's eye preference to obtain energy-saving display parameters. This can be achieved based on the characteristic that the visual sensitivity of the non-dominant eye is relatively low. By reducing power consumption and controlling the electronic viewfinder to display images according to energy-saving parameters, the system determines the visual perception state corresponding to the current object. This allows the system to capture the user's subjective perception of the image quality after energy saving. Furthermore, based on the visual perception state, the system performs correction and adjustment operations on the energy-saving display parameters to obtain corrected display parameters. This can compensate for the image quality degradation caused by excessive energy saving, thereby reducing power consumption while maintaining the viewing experience of the current object. This solves the technical problem in related technologies where it is difficult to adaptively adjust the display parameters for different viewing eyes when controlling the display parameters of the camera's electronic viewfinder, resulting in poor user experience and wasted power.

[0226] (2) Compared with related technologies, this invention can obtain the accuracy of the current viewing eye's gaze point and the dispersion of the coordinate distribution of multiple gaze points corresponding to the current viewing eye by determining the gaze accuracy and gaze dispersion of the current viewing eye. Then, based on the gaze accuracy and gaze dispersion, the visual dependence of the current viewing eye is determined. The visual dependence of the current viewing eye on the visual input during the viewing process is quantified from multiple dimensions. Then, the visual dependence of the other eye of the current object is determined by determining the visual dependence of the current viewing eye. Under the same quantitative standard, the dependence of the other eye of the current object on the visual input can be obtained. Since the dominant eye bears the main visual input when both eyes are viewing at the same time, and the non-dominant eye has a measurable physiological disadvantage, the determination of whether the current viewing eye is the dominant eye of the current object based on the visual dependence of the current viewing eye and the visual dependence of the other eye of the current object can accurately distinguish whether the current viewing eye is the dominant eye or not. This provides a reliable basis for subsequent energy-saving adjustment of the current display parameters of the electronic viewfinder based on the current object's eye preference when the current viewing eye is not the dominant eye of the current object.

[0227] (3) Compared with related technologies, the present invention, by determining the callback range corresponding to the energy-saving display parameter and dividing the callback range into multiple sub-callback ranges when the visual perception state is a predetermined perception state, that is, when the current object perceives the degradation of the display image quality of the electronic viewfinder, can break down a one-time parameter callback into multiple callback steps applied step by step in the execution order; since the current object's tolerance for image quality degradation varies from person to person and is affected by factors such as ambient light, the dynamic range of the image, and the fatigue state of the current object, it is impossible to preset a fixed value. Therefore, according to the execution order of multiple sub-callback ranges, the first sub-callback range is used to perform a correction adjustment operation on the energy-saving display parameter to obtain the first corrected display parameter, and the first corrected display parameter is determined. The system first determines the user's initial perception state. If the initial perception state is a predetermined perception state, the system then uses a second sub-callback amplitude to further adjust the first corrected display parameters to obtain the second corrected display parameters. This process continuously approaches the acceptable level of the current object through a step-by-step callback mechanism until the target condition is met: either the target perception state corresponding to the target callback amplitude is not the predetermined perception state for the first time among multiple sub-callback amplitudes, or all sub-callback amplitudes have been executed. This process reduces power consumption while restoring the display parameters to within the imperceptible boundary of the current object, avoiding excessive image quality due to excessive callback amplitude or insufficient callback amplitude that causes the current object to still perceive image quality degradation, thus balancing the viewing experience of the current object.

[0228] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, because according to the present invention, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0229] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods of the various embodiments of the present invention.

[0230] Example 2

[0231] According to embodiments of the present invention, an apparatus for implementing the above-described method for adjusting display parameters of an electronic viewfinder is also provided. Figure 9 This is a structural block diagram of the display parameter adjustment device for an electronic viewfinder according to an embodiment of the present invention, such as... Figure 9 As shown, the device includes: a first determining module 902, a second determining module 904, a third determining module 906, a fourth determining module 908, a fifth determining module 910, and a sixth determining module 912. The device will be described in detail below.

[0232] The first determining module 902 is used to identify the current viewing eye corresponding to the current object, wherein the viewing eye is the eye of the current object that is close to the electronic viewfinder to take pictures and look at the view in the current state;

[0233] The second determining module 904 is connected to the first determining module 902 and is used to determine the eye preference of the current object.

[0234] The third determining module 906 is connected to the second determining module 904 and is used to detect whether the current framing eye is the dominant eye of the current object and obtain the detection result.

[0235] The fourth determining module 908, connected to the third determining module 906, is used to perform energy-saving adjustment operation on the current display parameters of the electronic viewfinder based on the current object's eye preference when the detection result is that the current viewing eye is not the dominant eye of the current object. This results in energy-saving display parameters corresponding to the electronic viewfinder. The energy-saving adjustment operation is used to reduce the power consumption of the electronic viewfinder.

[0236] The fifth determining module 910, connected to the fourth determining module 908, is used to control the electronic viewfinder to perform framing and display according to the energy-saving display parameters, and then determine the visual perception state corresponding to the current object.

[0237] The sixth determining module 912, connected to the fifth determining module 910, is used to perform a correction adjustment operation on the energy-saving display parameters based on the visual perception state to obtain the corrected display parameters.

[0238] It should be noted that the first determining module 902, the second determining module 904, the third determining module 906, the fourth determining module 908, the fifth determining module 910, and the sixth determining module 912 mentioned above correspond to steps S102 to S112 in the method for adjusting the display parameters of the electronic viewfinder. The multiple modules and the corresponding steps are the same in terms of the instances and application scenarios implemented, but are not limited to the content disclosed in the above embodiment 1.

[0239] Example 3

[0240] According to another aspect of the present invention, an electronic device is also provided, comprising: a processor; and a memory for storing processor-executable instructions, wherein the processor is configured to execute the instructions to implement the electronic viewfinder display parameter adjustment method of any of the above embodiments.

[0241] Example 4

[0242] According to another aspect of the present invention, a computer-readable storage medium is also provided, which, when the instructions in the computer-readable storage medium are executed by a processor of an electronic device, enables the electronic device to perform the electronic viewfinder display parameter adjustment method described above.

[0243] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0244] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0245] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0246] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0247] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0248] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0249] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for adjusting display parameters of an electronic viewfinder, characterized in that, include: Identify the current viewfinder eye corresponding to the current object, wherein the viewfinder eye is the eye of the current object that is close to the electronic viewfinder for framing and viewing in the current state; Determine the current object's eye usage preferences; Detect whether the current viewfinder is the dominant eye of the current object, and obtain the detection result; If the detection result indicates that the current viewing eye is not the dominant eye of the current object, an energy-saving adjustment operation is performed on the current display parameters of the electronic viewfinder based on the current object's eye preference to obtain the energy-saving display parameters corresponding to the electronic viewfinder. The energy-saving adjustment operation is used to reduce the power consumption of the electronic viewfinder. After controlling the electronic viewfinder to perform framing and display according to the energy-saving display parameters, the visual perception state corresponding to the current object is determined; Based on the visual perception state, a correction and adjustment operation is performed on the energy-saving display parameters to obtain the corrected display parameters.

2. The method according to claim 1, characterized in that, The step of detecting whether the current viewing eye is the dominant eye of the current object, and obtaining the detection result, includes: Determine the fixation accuracy and fixation dispersion corresponding to the current viewing eye; Based on the fixation accuracy and the fixation dispersion, the visual dependence corresponding to the current framing eye is determined; The visual dependence of the other eye of the current object is determined by determining the visual dependence of the current viewing eye. Based on the visual dependence of the current framing eye and the visual dependence of the other eye of the current object, it is determined whether the current framing eye is the dominant eye of the current object.

3. The method according to claim 2, characterized in that, Determining the gaze dispersion corresponding to the current viewing eye includes: Obtain the gaze position sequence corresponding to the current viewing eye, wherein the gaze position sequence includes multiple gaze point coordinates arranged in chronological order; Based on the spatial distribution relationship between the coordinates of the multiple gaze points, a covariance matrix corresponding to the gaze position sequence is determined, wherein the elements in the covariance matrix are used to characterize the degree of dispersion of the coordinates of the multiple gaze points. Based on the covariance matrix, the gaze dispersion corresponding to the current framing eye is determined.

4. The method according to claim 2, characterized in that, The determination of the visual dependence corresponding to the current viewing eye based on the gaze accuracy and the gaze dispersion includes: Determine the pupil diameter corresponding to the current viewing eye; Based on the fixation accuracy, the fixation dispersion, and the pupil diameter, the visual dependence corresponding to the current framing eye is determined.

5. The method according to claim 1, characterized in that, Determining the visual perception state corresponding to the current object includes: Determine the current object's eye response state, head response posture, and limb response actions; Based on the eye response state, the head response posture, and the limb response action, the visual perception state corresponding to the current object is determined.

6. The method according to claim 5, characterized in that, The eye response states include gaze duration, eye movement frequency, and pupil diameter changes; the head response postures include head adjustment amplitude, head adjustment frequency, and facial orientation changes; and the limb response actions include eye movement away and parameter adjustment actions.

7. The method according to any one of claims 1 to 6, characterized in that, The step of performing a correction adjustment operation on the energy-saving display parameters based on the visual perception state to obtain the corrected display parameters includes: When the visual perception state is a predetermined perception state, the callback range corresponding to the energy-saving display parameter is determined, and the callback range is divided into multiple sub-callback ranges. The predetermined perception state is the state when the current object perceives the degradation of the display image quality of the electronic viewfinder. Following the execution order of multiple sub-callback amplitudes, the first sub-callback amplitude is used to perform a correction adjustment operation on the energy-saving display parameters to obtain the first corrected display parameters, and the first perception state of the current object under the first corrected display parameters is determined; and if the first perception state is a predetermined perception state, the second sub-callback amplitude is used to perform a correction adjustment operation on the first corrected display parameters to obtain the second corrected display parameters, until a target condition is reached to obtain the corrected display parameters, wherein the target condition includes any of the following: Among the multiple sub-callback amplitudes, the target perception state corresponding to the first occurrence of the target callback amplitude is not the predetermined perception state. The execution of the multiple sub-callback ranges has been completed.

8. A display parameter adjustment device for an electronic viewfinder, characterized in that, include: The first determining module is used to identify the current viewing eye corresponding to the current object, wherein the viewing eye is the eye of the current object that is close to the electronic viewfinder to take pictures in the current state; The second determining module is used to determine the eye preference of the current object; The third determining module is used to detect whether the current framing eye is the dominant eye of the current object, and to obtain the detection result; The fourth determining module is used to perform an energy-saving adjustment operation on the current display parameters of the electronic viewfinder based on the current object's eye preference when the detection result indicates that the current viewing eye is not the dominant eye of the current object. This results in the energy-saving display parameters corresponding to the electronic viewfinder, wherein the energy-saving adjustment operation is used to reduce the power consumption of the electronic viewfinder. The fifth determining module is used to control the electronic viewfinder to perform framing and display according to the energy-saving display parameters, and then determine the visual perception state corresponding to the current object. The sixth determining module is used to perform a correction adjustment operation on the energy-saving display parameters based on the visual perception state to obtain the corrected display parameters.

9. An electronic device, characterized in that, include: processor; Memory used to store the processor's executable instructions; The processor is configured to execute the instructions to implement the method for adjusting the display parameters of the electronic viewfinder as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, When the instructions in the computer-readable storage medium are executed by the processor of the electronic device, the electronic device is able to perform the display parameter adjustment method of the electronic viewfinder as described in any one of claims 1 to 7.

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