Bionic eyeball and VR test system
By designing a bionic eyeball and a VR testing system, the shortcomings of the real-person testing method in eye-tracking ability testing have been solved, achieving high-precision, low-cost automated testing and improving the stability and efficiency of the test.
Patent Information
- Application Number
- CN202422479054.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-10-14
AI Technical Summary
In existing technologies, the real-person testing method for eye-tracking ability testing has problems such as long testing time, difficulty in quantifying accuracy, poor repeatability, high subjectivity, high cost and complex data processing, making it difficult to form a stable and reliable evaluation standard.
A bionic eyeball was designed, including an eyeball support, a camera component, and an eyeball body. The camera component is installed inside the eyeball and at a specific angle to the central axis of the eyeball. Combined with a VR testing system, automated data acquisition and processing are achieved.
It improves the detection accuracy and repeatability of eye-tracking capabilities, reduces testing costs, increases testing efficiency, and enhances the automation and intelligence of testing.
Smart Images
Figure CN223627486U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bionic eyeball technical field especially relates to a bionic eyeball and VR test system. BACKGROUND
[0002] With the rapid development of virtual reality (VR) technology, eye movement tracking technology as one of the key technologies in XR (extended reality, including VR, AR, MR, etc.) field, its importance is increasingly prominent. Eye movement tracking technology can greatly enhance the immersive experience of users and effectively reduce the computing energy consumption of the device by quickly and accurately capturing the gaze direction of users in the VR device within the gaze range. The optimization and application of this technology have great significance for improving the overall performance and user experience of XR devices.
[0003] However, current large XR device manufacturers generally use real person measurement method when testing eye movement tracking capability. Although this method can intuitively reflect the actual effect of eye movement tracking, it has many drawbacks, such as long test time, difficult quantification of test accuracy, poor repeatability and high subjectivity. Specifically, real person measurement method is affected by many factors such as individual differences of testers, fatigue state, emotional changes, etc., resulting in large fluctuations in test results and difficulty in forming stable and reliable evaluation standards.
[0004] In addition, real person measurement method also faces problems such as high test cost, complex data collection and processing. Each test requires a large amount of manpower and material resources, and test data needs to be analyzed and processed complexly to obtain valuable conclusions. This not only increases the difficulty and cost of testing, but also limits the further development and application of eye movement tracking technology.
[0005] In order to overcome the above-mentioned drawbacks and improve the detection accuracy and repeatability of eye movement tracking capability, it is urgent to develop a more simulated eyeball model and its test equipment. The simulated eyeball model should be able to simulate the movement law and visual characteristics of real human eyes to realize stable and accurate detection of eye movement tracking capability. At the same time, the test equipment should have high automation and intelligent level, which can automatically complete the data collection, processing and analysis work, reduce the test cost and improve the test efficiency. SUMMARY
[0006] Therefore, the utility model embodiment provides a kind of bionic eyeball and VR test system.
[0007] The utility model embodiment provides a kind of bionic eyeball, comprising:
[0008] Eye ball body support;
[0009] Camera assembly;
[0010] An eyeball body, the eyeball body includes an eyeball, the eyeball is semispherical, the eyeball is internally provided with a first installation groove for installing a camera assembly;The eyeball body further includes a transparent corneal layer and a transparent sclera layer, the transparent sclera layer is arranged on the outer wall of the semispherical eyeball, and the transparent sclera layer is arranged on the top of the outer wall of the semispherical eyeball.
[0011] The camera assembly is installed in the first installation groove, and the eyeball body is connected with the eyeball support;The shooting angle of the camera assembly and the central axis of the eyeball form a first angle.
[0012] Further, the angle between the shooting angle of the camera assembly and the central axis of the eyeball is in the range of 0-5°.
[0013] Further, an installation slope is arranged in the first installation groove, and the camera assembly is attached to the installation slope.
[0014] Further, the angle between the perpendicular line of the installation slope and the eyeball is the same as the first angle.
[0015] Further, a positioning slope is arranged on the eyeball support, and the bottom of the camera assembly is attached to the positioning slope.
[0016] Further, the angle between the perpendicular line of the positioning slope and the eyeball is the same as the first angle.
[0017] Further, an arc top center of the eyeball is further provided with a pupil structure, and the camera assembly can shoot the picture outside the bionic eyeball through the pupil structure.
[0018] Further, an iris pattern is arranged on the outer surface of the eyeball, and the transparent sclera layer is arranged on the iris pattern.
[0019] Further, the material refractive index of the transparent corneal layer is in the range of 1.35-1.4.
[0020] The embodiment of the utility model further provides a VR test system, comprising:
[0021] VR test equipment and any bionic eyeball described above.
[0022] The embodiment of the utility model provides a bionic eyeball and VR test equipment, which can more accurately perform eye movement test. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings described in the following embodiment are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0024] Figure 1 is a structural schematic diagram of another bionic eyeball provided by the embodiment of the present application.
[0025] Figure 2 is a structural schematic diagram of another bionic eyeball provided by the embodiment of the present application.
[0026] Figure 3 is a structural schematic diagram of another bionic eyeball provided by the embodiment of the present application.
[0027] Figure 4 is a structural schematic diagram of another bionic eyeball provided by the embodiment of the present application.
[0028] Figure 5 is a structural schematic diagram of another bionic eyeball provided by the embodiment of the present application.
[0029] Figure 6 is a structural schematic diagram of another bionic eyeball provided by the embodiment of the present application.
[0030] Figure 7 is a structural schematic diagram of another bionic eyeball provided by the embodiment of the present application. Specific embodiments
[0031] In the following description, specific details are set forth in order to provide a thorough understanding of the embodiments of the present application, such as specific system structures, techniques, etc. However, it should be apparent to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted in order not to obscure the description of the present application with unnecessary details.
[0032] The terms "first", "second", etc. in the embodiments of the present application are only used to distinguish related technical features, and do not represent the order.
[0033] In order to illustrate the technical solutions described in the embodiments of the present application, the following will be described by specific embodiments.
[0034] As shown in Figures 1-4 is a structural schematic diagram of a bionic eyeball provided by the embodiment of the present application.
[0035] The embodiment provides a bionic eyeball, which has a structure as shown in the figure and mainly comprises an eyeball body support 11, a camera assembly 12 and an eyeball main body 13. Figure 1
[0036] The eyeball body support 11 is made of light and strong materials such as metal materials or carbon fiber composite materials, so as to ensure the stability and durability of the bionic eyeball. The design of the eyeball body support 11 needs to consider the compatibility with VR devices or other test platforms, so as to facilitate installation and disassembly.
[0037] The camera assembly 12 is the core component of the bionic eyeball and is used for simulating the visual function of the human eye. In the embodiment, the camera assembly 12 comprises a miniature camera, an image processing chip and necessary connecting lines and interfaces. The camera assembly 12 is installed in the first mounting groove which is located at the inner center position of the eyeball body 131 and ensures that the shooting angle of the camera is at a predetermined first angle (such as 0-5°, which can be adjusted according to actual requirements) with the central axis of the eyeball body, so as to simulate the actual visual angle of the human eye. The image processing chip is responsible for processing the image data captured by the camera, and performs necessary enhancement and optimization processing, so as to improve the definition and color restoration of the image.
[0038] The eyeball main body 13 is the appearance part of the bionic eyeball and comprises a hemispherical eyeball body 131, a transparent corneal layer 132 and a transparent scleral layer 134. The eyeball body 131 is made of soft and transparent silicone material and imitates the appearance and texture of the real human eye. The first mounting groove is arranged in the eyeball body 131 and is used for fixing the camera assembly 12. The transparent corneal layer 132 covers the front end of the eyeball body 131 and simulates the corneal part of the human eye and has similar transparency and optical performance to the human cornea. The transparent scleral layer 134 is arranged at the top of the outer wall of the eyeball body 131 and simulates the scleral part of the human eye and provides additional protection and support for the eyeball body.
[0039] In the specific implementation, first, the camera assembly 12 is installed in the first mounting groove in the eyeball body 131 and the shooting angle thereof is ensured to be at a predetermined first angle with the central axis of the eyeball body. Then, the eyeball main body 13 and the eyeball body support 11 are fixed together through appropriate connecting modes (such as screws, buckles and the like) to form the complete bionic eyeball structure.
[0040] The bionic eyeball described in this embodiment can achieve stable and accurate detection of eye movement tracking capability. The camera of the camera assembly can capture image data, and the enhancement and optimization processing of the image processing chip further improve the image quality. At the same time, the design of the hemispherical eyeball body and the transparent cornea and sclera layer makes the bionic eyeball more similar to the real human eye in appearance, improving the simulation and credibility of the test. In addition, the bionic eyeball also has the advantages of simple structure, easy manufacturing and maintenance, and is suitable for eye movement tracking capability test of various XR devices.
[0041] Specifically, in the bionic eyeball of this embodiment, a mounting slope is specially arranged in the first mounting groove inside the eyeball body 131. The purpose of this mounting slope is to ensure that the camera assembly can be more tightly and stably installed in the eyeball body, while ensuring that the shooting angle of the camera assembly and the central axis of the eyeball body maintain a predetermined first angle.
[0042] Design of the mounting slope: The mounting slope is a carefully designed inclined surface, and the angle between its perpendicular and the eyeball body is exactly the same as the first angle. For example, if the predetermined first angle is one of 0-5°, the angle between the perpendicular of the mounting slope and the eyeball body is also set to the corresponding angle of 0-5°. Such design ensures that when the camera assembly completely fits the mounting slope, its shooting angle naturally forms an angle corresponding to the first angle with the central axis of the eyeball body, thereby accurately simulating the visual deflection of the human eye when gazing.
[0043] Installation of the camera assembly: During installation, first place the camera assembly on the mounting slope and gently adjust its position until the camera assembly completely fits the mounting slope. Since the angle of the mounting slope matches the predetermined first angle, the installation process of the camera assembly becomes simple and intuitive. Once the camera assembly is installed in place, it can be stably fixed in the eyeball body and accurately capture images of the target area.
[0044] This embodiment further refines the structure of the bionic eyeball, especially by adding a positioning slope on the eyeball body support to improve the installation accuracy and stability of the camera assembly.
[0045] Design of the positioning slope:
[0046] At a specific position of the eyeball body support, a positioning slope is designed. The main function of this positioning slope is to serve as a reference surface for the installation of the camera assembly, ensuring that the camera assembly can be stably fixed on the eyeball body at a predetermined angle and position. Similar to the mounting slope, the angle between the perpendicular of the positioning slope and the eyeball body is designed to be the same as the first angle (i.e., the predetermined shooting angle of the camera assembly). For example, if the first angle is 3°, the angle between the perpendicular of the positioning slope and the eyeball body is also set to 3°.
[0047] Mounting of the camera assembly:
[0048] During the mounting process, the bottom of the camera assembly is precisely placed on the positioning slope and fastened to the eyeball holder through appropriate fixing mechanisms such as screws, buckles, etc. Due to the presence of the positioning slope, the camera assembly can automatically adjust to the predetermined shooting angle without the need for additional angle adjustment steps.
[0049] This embodiment describes in detail the pupil structure, iris pattern design, and material selection of the transparent corneal layer of the bionic eyeball, aiming to simulate the appearance and function of the real human eye.
[0050] Pupil structure design:
[0051] In the central position of the arc top of the bionic eyeball, a pupil structure 135 is carefully designed. This pupil structure 135 is not only a key component in the optical system, but also simulates the natural form of the human pupil, making the bionic eyeball more realistic in appearance. The camera assembly 12 is cleverly placed inside the eyeball, capturing the scene outside the bionic eyeball through the pupil structure 135.
[0052] Iris pattern design:
[0053] To further enhance the realism of the bionic eyeball, we set up fine iris patterns 133 on the outer surface of the eyeball. These iris patterns 133 are made through advanced printing, affixing or carving techniques, with rich color and texture changes, capable of simulating the natural characteristics of human iris. The transparent sclera layer 132 is then covered on the iris patterns 133.
[0054] Transparent corneal layer material selection:
[0055] The transparent corneal layer 132 is an important part of the bionic eyeball, which directly contacts with the outside environment and bears the important function of protecting the internal structure of the eyeball and adjusting the light entering. In this embodiment, we choose the material with refractive index in the range of 1.35-1.4 as the material for making the transparent corneal layer 132. This material not only has good optical performance, but also can ensure that the light enters the eyeball according to the predetermined path, similar to the real eyeball.
[0056] This embodiment also introduces a VR test system, which aims to evaluate the synchronization and accuracy of the VR device with the bionic eyeball in simulating human eye movement and virtual picture changes.
[0057] System composition:
[0058] VR test equipment: used to test the eye movement performance of VR equipment.
[0059] Bionic eyeball: any of the above-mentioned bionic eyeballs, which have functions such as simulating the appearance of human eyes, pupil changes, and eye movement tracking. The integrated camera components inside can capture and process user eye movement information in real time and transmit it to the VR testing device.
[0060] Test scheme:
[0061] System calibration: First, calibrate the VR testing device and the bionic eyeball to ensure accurate data transmission and synchronization between the two.
[0062] Virtual environment setup: Set up one or more virtual environments in the VR testing device, which can simulate different scenarios and interactive situations.
[0063] Test process: The camera components of the bionic eyeball capture user eye movement information in real time and transmit it to the VR testing device. The VR testing device adjusts the display content or perspective of the virtual picture in real time based on the received eye movement information to simulate the user's experience of watching and interacting through human eyes.
[0064] Data recording and analysis: The system records the synchronization data of the bionic eyeball's eye movement information and the virtual picture changes, including response time, accuracy, smoothness, etc. Through analysis of these data, the performance and performance of the VR device when the bionic eyeball moves can be evaluated.
[0065] The above-mentioned embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for part of the technical features; and these modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.
Claims
1. A biomimetic eyeball, characterized by, The application relates to a bionic eyeball, which comprises the following parts: an eyeball body support; a camera assembly; an eyeball body, which comprises an eyeball, the eyeball being semispherical, a first mounting groove for mounting the camera assembly being arranged in the eyeball, the eyeball body further comprising a transparent cornea layer and a transparent sclera layer, the transparent sclera layer being arranged on the outer wall of the eyeball, and the transparent sclera layer being arranged on the top of the outer wall of the semispherical eyeball; the camera assembly is mounted in the first mounting groove, the eyeball body is connected with the eyeball body support, and the shooting angle of the camera assembly forms a first angle with the central axis of the eyeball.
2. The biomimetic eyeball of claim 1, wherein The angle between the shooting angle of the camera assembly and the central axis of the eyeball ranges from 0 to 5 degrees.
3. The biomimetic eyeball of claim 1, wherein An installation slope is arranged in the first mounting groove, and the camera assembly is attached to the installation slope.
4. The biomimetic eyeball of claim 3, wherein The angle between the perpendicular line of the installation slope and the eyeball is the same as the first angle.
5. The biomimetic eyeball of claim 1, wherein, A positioning slope is arranged on the eyeball body support, and the bottom of the camera assembly is attached to the positioning slope.
6. The biomimetic eyeball of claim 5, wherein, The angle between the perpendicular line of the positioning slope and the eyeball is the same as the first angle.
7. The biomimetic eyeball of claim 1, wherein An iris structure is arranged on the arc top center of the eyeball, and the camera assembly can shoot pictures outside the bionic eyeball through the iris structure.
8. The biomimetic eyeball of claim 1, wherein, An iris pattern is arranged on the outer surface of the eyeball, and the transparent sclera layer is arranged on the iris pattern.
9. The biomimetic eyeball of claim 1, wherein, The material refractive index of the transparent cornea layer ranges from 1.35 to 1.
5.
10. A VR test system, characterized by, The application further relates to a VR test device and the bionic eyeball as claimed in any one of claims 1 to 9.