CN108267299B - Method and device for testing interpupillary distance of AR glasses - Google Patents
Method and device for testing interpupillary distance of AR glasses Download PDFInfo
- Publication number
- CN108267299B CN108267299B CN201711406096.1A CN201711406096A CN108267299B CN 108267299 B CN108267299 B CN 108267299B CN 201711406096 A CN201711406096 A CN 201711406096A CN 108267299 B CN108267299 B CN 108267299B
- Authority
- CN
- China
- Prior art keywords
- picture
- glasses
- definition
- shooting
- distance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000011521 glass Substances 0.000 title claims abstract description 125
- 238000012360 testing method Methods 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000003287 optical effect Effects 0.000 claims abstract description 25
- 238000004458 analytical method Methods 0.000 claims description 53
- 210000001747 pupil Anatomy 0.000 claims description 17
- 230000003190 augmentative effect Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 208000003464 asthenopia Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0207—Details of measuring devices
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Eye Examination Apparatus (AREA)
Abstract
The invention provides an AR (augmented reality) glasses interpupillary distance testing method and device, wherein the method takes a projection optical axis as an initial position of a camera, controls the camera to respectively move a preset distance leftwards and rightwards in the interpupillary distance direction of AR glasses by taking a preset step length as a moving distance, takes the moving distance of each preset step length as a shooting position of the camera within the moved preset distance, and shoots a projection picture projected on the lens of the AR glasses to obtain a picture definition value of the shot picture of the corresponding shooting position; acquiring a shooting position corresponding to a shooting picture with the highest picture definition value in all the shooting pictures according to the acquired picture definition values of the shooting pictures at the corresponding shooting positions; and then determining the interpupillary distance of the AR glasses according to the shooting position corresponding to the shot picture with the highest picture definition value. The method and the device can realize the interpupillary distance test of the AR glasses, have high test precision, low cost and higher test efficiency, and are suitable for testing the interpupillary distances of large-batch AR glasses.
Description
Technical Field
The invention relates to the technical field of optics, in particular to a method and a device for testing the interpupillary distance of AR glasses.
Background
The AR (Augmented Reality) technology is to apply virtual information to the real world, which is perceived by human senses, by simulating and superimposing physical information (such as visual information, sound, and the like) that is originally difficult to experience in a certain time space range of the real world through scientific technologies such as computers, and the like, thereby achieving sensory experience beyond Reality. The augmented reality technology not only shows real world information, but also displays virtual information at the same time, and the two kinds of information are mutually supplemented and superposed. Glasses made using AR technology can superimpose the real world with computer graphics so that the real world can be seen around it.
AR glasses are widely applied to the fields of war industry, engineering design, consumer electronics, medical treatment and the like at present, and currently, a projection system of the AR glasses mainly comprises a display module, a light machine, lenses, auxiliary accessories and a support, and imaging is performed by projecting contents onto the lenses through the light machine by the display module and then reflecting the contents to human eyes by the lenses, so that the AR augmented reality function is achieved. Therefore, the relative assembly precision of display module assembly, ray apparatus and lens structure is the key factor of deciding AR imaging effect, and the tolerance of display module assembly, ray apparatus and lens self and assembly all can arouse the error of interpupillary distance to lead to image blur, image incomplete etc. if use AR glasses for a long time under this kind of circumstances, then can lead to the user to produce visual fatigue, thereby seriously influence user's use experience.
Therefore, the interpupillary distance test is one of the important indexes for measuring the performance of the AR glasses, however, no method and device capable of effectively testing the interpupillary distance of the AR glasses exist in the production and manufacturing process of the AR glasses at present, so that the factory quality of the AR glasses is greatly influenced.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a method and an apparatus for testing interpupillary distance of AR glasses, so as to solve the problem that the AR glasses cannot be tested for interpupillary distance at present.
The invention provides a method for testing the interpupillary distance of AR glasses, which comprises the following steps:
controlling the camera to move a preset distance leftwards and rightwards respectively in the interpupillary distance direction of the AR glasses by taking the projection optical axis as the initial position of the camera and a preset step length as the moving distance, and taking the moving distance of each preset step length as the shooting position of the camera within the moved preset distance to shoot a projection picture projected on the lens of the AR glasses and obtain a shot picture of the corresponding shooting position;
performing definition analysis on the acquired shot picture to acquire a picture definition value of the shot picture at the corresponding shooting position;
acquiring a shooting position corresponding to a shooting picture with the highest picture definition value in all the shooting pictures according to the acquired picture definition values of the shooting pictures at the corresponding shooting positions;
and determining the interpupillary distance of the AR glasses according to the shooting position corresponding to the shooting picture with the highest picture definition value.
Further, a preferred embodiment is: in the process of controlling the camera to respectively move left and right by preset distances in the interpupillary distance direction of the AR glasses by taking the preset step length as the moving distance, setting the preset step length and the preset distance of the camera moving left in the interpupillary distance direction of the AR glasses as negative values, and setting the preset step length and the preset distance of the camera moving right in the interpupillary distance direction as positive values; the camera moves a preset distance leftwards in the direction of the interpupillary distance, namely the camera moves the preset distance from the initial position to the direction of the central line of the AR glasses lens; the camera moves to the right in the interpupillary distance direction by the preset distance means that the camera moves from the initial position to the direction in which the edge of the AR eyeglass lens is located by the preset distance.
Further, a preferred embodiment is: in the process of obtaining the shooting position corresponding to the shooting picture with the highest picture definition value in all the shooting pictures, curve fitting is carried out by taking the initial position as an original point, the shooting position of the camera as an X-axis coordinate and the picture definition value of the shooting picture at the corresponding shooting position as a Y-axis coordinate to obtain the vertex coordinate of the curve; the Y-axis coordinate value of the vertex coordinate is the shot picture with the highest picture definition value in all the shot pictures, and the X-axis coordinate of the vertex coordinate is the shooting position of the shot picture with the highest picture definition value.
Further, a preferred embodiment is: in the process of determining the interpupillary distance of the AR glasses according to the shooting position corresponding to the shooting picture with the highest definition value of the obtained picture, if the shooting position corresponding to the shooting picture with the highest definition value is in a preset test range, determining the interpupillary distance of the AR glasses according to the distance from a preset projection optical axis to the central line of the lens of the AR glasses and the shooting position corresponding to the shooting picture with the highest definition value; and if the shooting position corresponding to the shot picture with the highest definition value is not in the preset test range, determining that the AR glasses have the assembly problem.
Further, a preferred embodiment is: in the process of analyzing the definition of the acquired shot picture and acquiring the picture definition value of the shot picture at the corresponding shooting position, four areas, namely a picture center area and four picture corners, are selected from the shot picture as definition analysis points; and determining the picture definition value of the shot picture according to the definition value of each definition analysis point.
Further, a preferred embodiment is: in the process of determining the definition values of the pictures according to the definition values of all the definition analysis points, when the definition values of the definition analysis points in the center area of the pictures are all larger than the definition values of the definition analysis points in the four areas at the four corners of the pictures, and the difference value between the highest definition value of the definition analysis points in the four areas at the four corners of the pictures and the lowest definition value of the definition analysis points in the four areas at the four corners of the pictures is smaller than the preset range, the definition values of the pictures are the average values of the definition analysis points in the center area of the pictures and the definition values of the definition analysis points in the four areas at the four corners of the.
On the other hand, the invention provides an AR glasses interpupillary distance testing device, which utilizes the AR glasses interpupillary distance testing method to test the interpupillary distance of the AR glasses, and comprises a testing jig, a camera, a projection picture generating mechanism and an interpupillary distance analyzing mechanism; the testing jig is provided with a moving mechanism, the camera is fixed on the moving mechanism, the projection optical axis is used as the initial position of the camera, and the moving mechanism drives the camera to move left and right respectively by preset distances in the interpupillary distance direction of the AR glasses in preset steps; the projection picture generating mechanism is connected with the AR glasses to be detected and is used for controlling the AR glasses to be detected to generate projection pictures on the lenses so that the camera can shoot the generated projection pictures by taking the moving distance of each preset step length as a shooting position within a corresponding preset distance; the pupil distance analysis mechanism is connected with the camera and used for performing definition analysis on a shot picture shot by the camera, acquiring a shooting position corresponding to the shot picture with the highest picture definition value in the shot picture, and determining the pupil distance of the AR glasses to be detected according to the acquired shooting position of the shot picture with the highest definition value.
The method and the device for testing the interpupillary distance of the AR glasses provided by the invention control the camera to respectively move the preset distances leftwards and rightwards in the interpupillary distance direction of the AR glasses by taking the projection optical axis as the initial position of the camera and taking the preset step length as the moving distance, and shoot the projection picture projected on the lens of the AR glasses by taking the moving distance of each preset step length as the shooting position of the camera within the moved preset distance, so as to obtain the picture definition value of the shot picture at the corresponding shooting position; acquiring a shooting position corresponding to a shooting picture with the highest picture definition value in all the shooting pictures according to the acquired picture definition values of the shooting pictures at the corresponding shooting positions; and then determining the interpupillary distance of the AR glasses according to the shooting position corresponding to the shot picture with the highest picture definition value. The method and the device can realize the interpupillary distance test of the AR glasses, have high test precision, low cost and higher interpupillary distance test efficiency, and are suitable for testing the interpupillary distances of the AR glasses in large batch.
To the accomplishment of the foregoing and related ends, one or more aspects of the invention comprise the features hereinafter fully described. The following description and the annexed drawings set forth in detail certain illustrative aspects of the invention. These aspects are indicative, however, of but a few of the various ways in which the principles of the invention may be employed. Further, the present invention is intended to include all such aspects and their equivalents.
Drawings
Other objects and results of the present invention will become more apparent and more readily appreciated by reference to the following description taken in conjunction with the accompanying drawings, and as the invention is more fully understood. In the drawings:
fig. 1 is a schematic diagram of the structure of the interpupillary distance according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for testing interpupillary distance of AR glasses according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of an AR glasses interpupillary distance testing apparatus according to an embodiment of the present invention.
The same reference numbers in all figures indicate similar or corresponding features or functions.
In the figure: the system comprises human eyes 1, a lens 2, a projection picture 3, a lens center position 4, a projection optical axis 5, a test fixture 31, a camera 32 and a control system 33.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Aiming at the problem that the pupil distance test cannot be carried out on the AR glasses at present, the projection optical axis is taken as the initial position of the camera, the preset step length is taken as the moving distance to control the camera to respectively move the preset distances leftwards and rightwards in the pupil distance direction of the AR glasses, the moving distance of each preset step length is taken as the shooting position of the camera within the moved preset distance to shoot the projection picture projected on the lens of the AR glasses, and the picture definition value of the shot picture of the corresponding shooting position is obtained; acquiring a shooting position corresponding to a shooting picture with the highest picture definition value in all the shooting pictures according to the acquired picture definition values of the shooting pictures at the corresponding shooting positions; and then determining the interpupillary distance of the AR glasses according to the shooting position corresponding to the shot picture with the highest picture definition value. The method and the device can realize the interpupillary distance test of the AR glasses, have high test precision, low cost and higher interpupillary distance test efficiency, and are suitable for testing the interpupillary distances of the AR glasses in large batch.
Before explaining the method and the device for testing the interpupillary distance of the AR glasses provided by the invention, some concepts related in the invention are firstly explained, and for more clearly describing the concepts, fig. 1 shows the structure of the interpupillary distance according to the embodiment of the invention.
As shown in fig. 1, after the projection picture 3 is generated by the AR glasses, the projection picture is reflected to the human eyes 1 by the lenses 2 of the AR glasses, a virtual image is generated in front of the human eyes 1, and the virtual image is integrated with the real object in front of the eyes, so that the AR augmented reality effect is achieved. If twice the distance L1 from the projection optical axis 5 to the lens center position 4 is defined as the interpupillary distance of the AR glasses, then ideally, the projection optical axis 5 and the optical axis of the human eyes are coincident, and the interpupillary distance of the AR glasses can be measured by measuring the position of the projection optical axis.
It should be noted that the projection optical axis is a central line of the projection beam of the optical engine (here, the optical engine may be a camera or a human eye), and is a line perpendicular to the projection picture and passing through a central point of the projection picture.
Specifically, to describe the method for testing the interpupillary distance of the AR glasses provided by the present invention, fig. 2 shows a flow of the method for testing the interpupillary distance of the AR glasses according to the embodiment of the present invention.
As shown in fig. 2, the method for testing interpupillary distance of AR glasses provided by the present invention comprises:
s210: and taking the projection optical axis as the initial position of the camera, taking the preset step length as the moving distance to control the camera to respectively move the preset distance leftwards and rightwards in the interpupillary distance direction of the AR glasses, taking the moving distance of each preset step length as the shooting position of the camera to shoot the projection picture projected on the AR glasses lens within the moved preset distance, and acquiring the shooting picture of the corresponding shooting position.
In the process of controlling the camera to respectively move left and right by preset distances in the interpupillary distance direction of the AR glasses by taking the preset step length as the moving distance, setting the preset step length and the preset distance of the camera moving left in the interpupillary distance direction of the AR glasses as negative values, and setting the preset step length and the preset distance of the camera moving right in the interpupillary distance direction as positive values; the camera moves a preset distance leftwards in the direction of the interpupillary distance, namely the camera moves the preset distance from the initial position to the direction of the central line of the AR glasses lens; the camera moves to the right in the interpupillary distance direction by the preset distance means that the camera moves from the initial position to the direction in which the edge of the AR eyeglass lens is located by the preset distance.
S220: and analyzing the definition of the acquired shot picture to acquire the picture definition value of the shot picture at the corresponding shooting position.
The method comprises the steps that in the process of analyzing the definition of an acquired shot picture and acquiring the picture definition value of the shot picture at a corresponding shooting position, four areas, namely a picture center area and four picture corners, are selected from the shot picture as definition analysis points; and determining the picture definition value of the shot picture according to the definition value of each definition analysis point.
Further, in the process of determining the definition values of the pictures according to the definition values of all the definition analysis points, when the definition values of the definition analysis points in the center area of the picture are all larger than the definition values of the definition analysis points in the four areas at the four corners of the picture, and the difference value between the highest definition value of the definition analysis points in the four areas at the four corners of the picture and the lowest definition value of the definition analysis points in the four areas at the four corners of the picture is smaller than the preset range, the definition values of the pictures are the average value of the definition values of the definition analysis points in the center area of the picture and the definition values of the definition analysis points in the four areas at the four corners of the picture.
S230: and acquiring the shooting position corresponding to the shooting picture with the highest picture definition value in all the shooting pictures according to the acquired picture definition values of the shooting pictures at the corresponding shooting positions.
In the process of obtaining the shooting position corresponding to the shooting picture with the highest picture definition value in all the shooting pictures, curve fitting is carried out by taking the initial position as the origin, the shooting position of the camera as an X-axis coordinate and the picture definition value of the shooting picture at the corresponding shooting position as a Y-axis coordinate to obtain the vertex coordinate of the curve; the Y-axis coordinate of the vertex coordinate is the shooting position of the shooting picture with the highest picture definition value in all the shooting pictures, and the X-axis coordinate of the vertex coordinate is the shooting position of the shooting picture with the highest picture definition value.
S240: and determining the interpupillary distance of the AR glasses according to the shooting position corresponding to the shooting picture with the highest picture definition value.
In the process of determining the interpupillary distance of the AR glasses according to the shooting position corresponding to the shooting picture with the highest definition value of the obtained picture, if the shooting position corresponding to the shooting picture with the highest definition value is in a preset test range, determining the interpupillary distance of the AR glasses according to the distance from a preset projection optical axis to the central line of the lens of the AR glasses and the shooting position corresponding to the shooting picture with the highest definition value; and if the shooting position corresponding to the shot picture with the highest definition value is not in the preset test range, determining that the AR glasses have the assembly problem.
The preset test range needs to be determined according to the design specification of the specific AR glasses and the allowable pupil distance tolerance value thereof, for example, if the distance L1 from the projection optical axis of a certain type of AR glasses to the lens center position is set to be 30mm, and the allowable pupil distance tolerance value of the certain type of AR glasses is set to be ± 5mm, then the section of the preset test range is (25, 35).
The method for testing the interpupillary distance of the AR glasses provided by the invention is described in detail by way of example with reference to fig. 1 and 2. The method comprises the following specific steps:
according to the design specification of the AR glasses, the preset test range is (L1+ a, L1-a), wherein L1 is the distance from the projection optical axis of the AR glasses to the center position of the lens, and a is the allowed pupil distance tolerance value of the AR glasses. When testing the interpupillary distance of the AR glasses, firstly, taking a projection optical axis as an initial position of a camera, and controlling the camera to respectively move a distance b leftwards and rightwards in the interpupillary distance direction of the AR glasses by taking k as a step length, wherein b is larger than a.
For example, when the camera moves to the left in the pupil distance direction of the AR glasses, the camera performs moving shooting with a step size of-2 mm within a distance of-10 mm, and when the camera moves to the left in the pupil distance direction of the AR glasses, there are 5 shooting positions of the camera, and the moving distance corresponding to each shooting position is LC 1-2 mm, LC 2-4 mm, LC 3-6 mm, LC 4-8 mm, and LC 5-10 mm; similarly, when the camera moves to the right in the interpupillary direction of the AR glasses, and performs moving shooting with a step size of 2mm within a distance of 10mm, when the camera moves to the right in the interpupillary direction of the AR glasses, there are 5 shooting positions of the camera, and the moving distance corresponding to each shooting position is RC 1-2 mm, RC 2-4 mm, RC 3-6 mm, RC 4-8 mm, and RC 5-10 mm.
Through the movement of the camera, the shot picture can show a variable process of unclear-clear-unclear, and through obtaining the moving distance corresponding to each shooting position and the definition value of the shot picture shot at the shooting position, a definition curve which takes the initial position of the camera as the origin, the shooting position as the X axis and the picture definition value of the shot picture at the corresponding shooting position as the Y axis can be fitted, the definition curve is similar to a parabola, the shooting position of the X-axis coordinate of the vertex of the parabola is in the range of (L1+ a, L1-a), and the interpupillary distance of the AR glasses is twice of the sum of the moving distances corresponding to the shooting positions of the L1 and the X-axis coordinate of the vertex.
For example, in the above description, it is found by curve fitting that when the moving distance corresponding to the shooting position is LC3, the sharpness value of the shot picture taken by the camera is the highest, and the shooting position is within the range of (L1+ a, L1-a), then the interpupillary distance of the AR glasses is (L1+ LC3) × 2; if the imaging position is out of the range of (L1+ a, L1-a), it is necessary to check the structural dimensions of the key components of the AR glasses, the assembly error, and the like, which explains the problem of the interpupillary distance of the AR glasses.
Further, when the definition of the obtained shot picture is analyzed to obtain the picture definition value of the shot picture at the corresponding shooting position, four areas, namely a picture center area and four picture corners, are selected from the shot picture as definition analysis points; for example, assuming that the definition values of the definition analysis points in the central region of the shot picture are P1, and the definition values of the definition analysis points in the four regions of the four corners of the shot picture are P2, P3, P4 and P5, respectively, it can be known from the imaging principle of a camera and an optical machine that the definition value P1 of the definition analysis points in the central region of the picture is the highest, and therefore, in the process of obtaining the definition values of the shot picture at the corresponding shooting position, it is required to satisfy that P1 is greater than P2, P3, P4 and P5.
In addition, in order to ensure that the projection optical axis is not inclined vertically, the extreme difference R of the definition values of the definition analysis points of the four regions at the four corners of the picture needs to be smaller than K, wherein K is a constant, namely, on the premise that P1 is greater than P2, P3, P4 and P5, the difference R between the maximum value of P2-P5 and the minimum value of P2-P5 needs to be smaller than K, so that the picture definition value of the shot picture at the corresponding shooting position can be determined to be the average value of P1-P5.
In accordance with the above method, the present invention provides an AR glasses interpupillary distance measuring device for measuring the interpupillary distance of the AR glasses by using the above AR glasses interpupillary distance measuring method. Fig. 3 shows a structure of an AR glasses interpupillary distance testing apparatus according to an embodiment of the present invention.
As shown in fig. 3, the pupil distance testing device of the AR glasses provided by the present invention includes a testing fixture 31, a camera 32, a projection picture generating mechanism and a pupil distance analyzing mechanism; the AR glasses to be tested are fixed on the test fixture 31, a moving mechanism (not shown in the figure) is arranged on the test fixture 31, the camera is fixed on the moving mechanism, the projection optical axis 5 is used as an initial position of the camera, and the camera is driven by the moving mechanism to move left and right respectively by preset distances in the interpupillary distance direction of the AR glasses in a preset step length; the projection picture generating mechanism is connected with the AR glasses to be detected and is used for controlling the AR glasses to be detected to generate a projection picture 3 on the lens 2 so that the camera 32 can shoot the generated projection picture by taking the moving distance of each preset step length as a shooting position within a corresponding preset distance; the pupil distance analysis mechanism is connected with the camera 32 and is used for performing definition analysis on the shot picture shot by the camera 32, acquiring the shooting position corresponding to the shot picture with the highest picture definition value in the shot picture, and determining the pupil distance of the AR glasses to be detected according to the obtained shooting position of the shot picture with the highest definition value.
The projection image generating means and the interpupillary distance analyzing means are provided in the control system 33, which may be a computer, an industrial personal computer, or the like.
The pupil distance analysis mechanism further comprises a picture definition value acquisition module (not shown in the figure), and the definition value acquisition module is used for acquiring the definition value of a shot picture shot by the camera; in the process of obtaining the definition value of a shot picture shot by a camera, four areas, namely a picture center area and four picture corners, are selected from the shot picture as definition analysis points, and the picture definition value of the shot picture is determined according to the definition value of each definition analysis point.
Specifically, in the process of determining the definition values of the pictures according to the definition values of all the definition analysis points, when the definition values of the definition analysis points in the center area of the picture are all larger than the definition values of the definition analysis points in the four areas at the four corners of the picture, and the difference value between the highest definition value in the definition analysis points in the four areas at the four corners of the picture and the lowest definition value in the definition analysis points in the four areas at the four corners of the picture is smaller than the preset range, the definition value of the pictures is the average value of the definition values of the definition analysis points in the center area of the picture and the definition values of the definition analysis points in the four areas at the four corners of the picture.
Therefore, the method and the device for testing the interpupillary distance of the AR glasses are not influenced by the shape, the size and the interpupillary distance range of the AR glasses to be tested, are simple to operate, have strong passing performance, and can test the interpupillary distance of the AR glasses in large batch with high precision and low cost.
The method and apparatus for testing the interpupillary distance of AR glasses according to the present invention are described above by way of example with reference to the accompanying drawings. However, it should be understood by those skilled in the art that various modifications may be made to the method and apparatus for testing the pupil distance of the AR glasses without departing from the scope of the present invention. Therefore, the scope of the present invention should be determined by the contents of the appended claims.
Claims (8)
1. An AR glasses interpupillary distance testing method comprises the following steps:
controlling the camera to move left and right respectively by preset distances in the interpupillary distance direction of the AR glasses by taking a projection optical axis as an initial position of the camera and a preset step length as a moving distance, and taking a projection picture projected on the lens of the AR glasses by taking the moving distance of each preset step length as a shooting position of the camera within the moved preset distance to obtain a shooting picture of a corresponding shooting position;
performing definition analysis on the acquired shot picture to acquire a picture definition value of the shot picture at the corresponding shooting position;
acquiring a shooting position corresponding to a shooting picture with the highest picture definition value in all the shooting pictures according to the acquired picture definition values of the shooting pictures at the corresponding shooting positions;
and determining the interpupillary distance of the AR glasses according to the shooting position corresponding to the shooting picture with the highest picture definition value.
2. The AR glasses interpupillary distance testing method according to claim 1, wherein in controlling the camera to move a preset distance in the interpupillary distance direction of the AR glasses to the left and the right, respectively, with a preset step size as a moving distance,
setting a preset step length and a preset distance of the camera moving leftwards in the interpupillary distance direction of the AR glasses as negative values, and setting a preset step length and a preset distance of the camera moving rightwards in the interpupillary distance direction as positive values; wherein,
the camera moves a preset distance leftwards in the direction of the interpupillary distance, namely the camera moves the preset distance from the initial position to the direction of the central line of the AR glasses lens;
the preset distance of moving the camera rightwards in the interpupillary distance direction means that the camera moves the preset distance from the initial position to the direction of the edge of the AR spectacle lens.
3. The AR glasses interpupillary distance testing method according to claim 1, wherein, in the process of obtaining the shooting position corresponding to the shooting picture with the highest picture definition value in all the shooting pictures,
taking the initial position as an origin, taking the shooting position of the camera as an X-axis coordinate, and taking the picture definition value of a shot picture of the corresponding shooting position as a Y-axis coordinate to perform curve fitting to obtain a vertex coordinate of the curve; wherein,
and the Y-axis coordinate value of the vertex coordinate is the shot picture with the highest picture definition value in all the shot pictures, and the X-axis coordinate of the vertex coordinate is the shooting position of the shot picture with the highest picture definition value.
4. The AR glasses interpupillary distance testing method according to claim 1, wherein in the process of determining the interpupillary distance of the AR glasses according to the shooting position corresponding to the shooting picture with the highest picture definition value,
if the shooting position corresponding to the shooting picture with the highest definition value is within a preset test range, determining the interpupillary distance of the AR glasses according to the distance from a preset projection optical axis to the central line of the lens of the AR glasses and the shooting position corresponding to the shooting picture with the highest definition value;
and if the shooting position corresponding to the shooting picture with the highest definition value is not in a preset test range, determining that the AR glasses have assembly problems.
5. The AR spectacle interpupillary distance testing method according to claim 1, wherein, in the process of performing sharpness analysis on the acquired photographed picture to acquire picture sharpness values of the photographed picture at the corresponding photographing position,
selecting four areas, namely a picture center area and four picture corners, from the shot picture as definition analysis points;
and determining the picture definition value of the shot picture according to the definition value of each definition analysis point.
6. The AR glasses interpupillary distance testing method according to claim 5, wherein, in determining the picture sharpness value of the photographed picture based on the sharpness value of each sharpness analysis point,
when the definition values of the definition analysis points in the central area of the picture are all larger than the definition values of the definition analysis points in the four areas at the four corners of the picture, and the difference value between the highest definition value in the definition analysis points in the four areas at the four corners of the picture and the lowest definition value in the definition analysis points in the four areas at the four corners of the picture is smaller than the preset range, the picture definition value of the shot picture is the average value of the definition values of the definition analysis points in the central area of the picture and the definition analysis points in the four areas at the four corners of the picture.
7. An AR glasses interpupillary distance testing device, which utilizes the AR glasses interpupillary distance testing method of any one of the claims 1-6 to test the interpupillary distance of AR glasses, and comprises a testing jig, a camera, a projection picture generating mechanism and an interpupillary distance analyzing mechanism; wherein,
the AR glasses to be tested are fixed on the test fixture, a moving mechanism is arranged on the test fixture, the camera is fixed on the moving mechanism, a projection optical axis is used as an initial position of the camera, and the camera is driven by the moving mechanism to move left and right respectively by preset distances in the interpupillary distance direction of the AR glasses in preset steps;
the projection picture generating mechanism is connected with the AR glasses to be detected and is used for controlling the AR glasses to be detected to generate projection pictures on lenses so that the camera can shoot the generated projection pictures by taking the moving distance of each preset step length as a shooting position within a corresponding preset distance;
the pupil distance analysis mechanism is connected with the camera and used for performing definition analysis on a shot picture shot by the camera, acquiring a shooting position corresponding to the shot picture with the highest picture definition value in the shot picture, and determining the pupil distance of the AR glasses to be detected according to the obtained shooting position of the shot picture with the highest definition value.
8. The AR glasses interpupillary distance testing apparatus of claim 7, wherein the interpupillary distance analyzing mechanism further comprises a picture sharpness value obtaining module;
the definition value acquisition module is used for acquiring the definition value of a shot picture shot by a camera; wherein, in the process of acquiring the definition value of the shot picture shot by the camera,
selecting four areas, namely a picture center area and four picture corners, from the shot picture as definition analysis points, and determining the picture definition value of the shot picture according to the definition value of each definition analysis point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711406096.1A CN108267299B (en) | 2017-12-22 | 2017-12-22 | Method and device for testing interpupillary distance of AR glasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711406096.1A CN108267299B (en) | 2017-12-22 | 2017-12-22 | Method and device for testing interpupillary distance of AR glasses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108267299A CN108267299A (en) | 2018-07-10 |
| CN108267299B true CN108267299B (en) | 2019-12-20 |
Family
ID=62772297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711406096.1A Active CN108267299B (en) | 2017-12-22 | 2017-12-22 | Method and device for testing interpupillary distance of AR glasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108267299B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109460329A (en) * | 2018-10-15 | 2019-03-12 | 广州赛度检测服务有限公司 | A kind of test macro based on AR intelligent glasses |
| CN109741294B (en) * | 2018-11-23 | 2021-11-02 | 歌尔光学科技有限公司 | Pupil distance testing method and equipment |
| CN109785375A (en) * | 2019-02-13 | 2019-05-21 | 盎锐（上海）信息科技有限公司 | Distance detection method and device based on 3D modeling |
| CN109856802B (en) * | 2019-04-17 | 2021-08-31 | 京东方科技集团股份有限公司 | Pupil distance adjusting method and device and virtual display equipment |
| CN110907142B (en) * | 2019-12-09 | 2021-08-03 | 中国科学院长春光学精密机械与物理研究所 | Visual somatosensory equipment testing system and method |
| CN111652959B (en) | 2020-05-29 | 2022-01-18 | 京东方科技集团股份有限公司 | Image processing method, near-to-eye display device, computer device, and storage medium |
| CN114979689B (en) * | 2022-05-05 | 2023-12-08 | 咪咕视讯科技有限公司 | Multi-machine-position live broadcast guide method, equipment and medium |
| CN115314688A (en) * | 2022-08-04 | 2022-11-08 | 广东思沃激光科技有限公司 | Focal length measuring method and device of DMD projection system and storage medium |
| CN115183989B (en) * | 2022-09-13 | 2023-01-10 | 武汉精立电子技术有限公司 | Near-to-eye display module detection method and detection system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278978A (en) * | 2011-07-25 | 2011-12-14 | 张仕郎 | Method for measuring interpupillary distance |
| CN107063646A (en) * | 2017-06-27 | 2017-08-18 | 歌尔科技有限公司 | Method, device and the virtual reality helmet of lens effective focal length are determined using camera |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10198978B2 (en) * | 2015-12-15 | 2019-02-05 | Facebook Technologies, Llc | Viewing optics test subsystem for head mounted displays |
| US10401625B2 (en) * | 2015-12-28 | 2019-09-03 | Facebook Technologies, Llc | Determining interpupillary distance and eye relief of a user wearing a head-mounted display |
-
2017
- 2017-12-22 CN CN201711406096.1A patent/CN108267299B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278978A (en) * | 2011-07-25 | 2011-12-14 | 张仕郎 | Method for measuring interpupillary distance |
| CN107063646A (en) * | 2017-06-27 | 2017-08-18 | 歌尔科技有限公司 | Method, device and the virtual reality helmet of lens effective focal length are determined using camera |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108267299A (en) | 2018-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108267299B (en) | Method and device for testing interpupillary distance of AR glasses | |
| CN108012147B (en) | The virtual image of AR imaging system is away from test method and device | |
| US9711114B1 (en) | Display apparatus and method of displaying using projectors | |
| US9711072B1 (en) | Display apparatus and method of displaying using focus and context displays | |
| CN110967166B (en) | Detection method, detection device and detection system of near-eye display optical system | |
| Itoh et al. | Occlusion leak compensation for optical see-through displays using a single-layer transmissive spatial light modulator | |
| CN114326128A (en) | Focus adjustment multi-plane head-mounted display | |
| US10321820B1 (en) | Measuring optical properties of an eyewear device | |
| US10902623B1 (en) | Three-dimensional imaging with spatial and temporal coding for depth camera assembly | |
| US11372243B2 (en) | Optical hybrid reality system having digital correction of aberrations | |
| US20180330545A1 (en) | Device and method for providing augmented reality for user styling | |
| US10237544B2 (en) | Open head mount display device and display method thereof | |
| CN111830714B (en) | Image display control method, image display control device and head-mounted display device | |
| US10412378B2 (en) | Resonating optical waveguide using multiple diffractive optical elements | |
| US20210096385A1 (en) | Object Localization System | |
| EP3983933A1 (en) | Method and system for determining a refraction feature of an eye of a subject using an image-capture device | |
| CN109997067B (en) | Display apparatus and method using portable electronic device | |
| Itoh et al. | Gaussian light field: Estimation of viewpoint-dependent blur for optical see-through head-mounted displays | |
| JP2012513604A5 (en) | ||
| CN110895433A (en) | Method and apparatus for user interaction in augmented reality | |
| US10935377B2 (en) | Method and apparatus for determining 3D coordinates of at least one predetermined point of an object | |
| CN109741294B (en) | Pupil distance testing method and equipment | |
| KR102062765B1 (en) | Three Dimensional image capture SYSTEM WITH IMAGE CONVERSION MECHANISM AND METHOD OF OPERATION THEREOF | |
| Jia et al. | Eyeball camera based calibration and performance verification for spatial computing systems | |
| CN220120361U (en) | Optical automatic measuring system of near-eye display equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201012 Address after: 261031 north of Yuqing street, east of Dongming Road, high tech Zone, Weifang City, Shandong Province (Room 502, Geer electronic office building) Patentee after: GoerTek Optical Technology Co.,Ltd. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: GOERTEK Inc. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221212 Address after: 266104 No. 500, Songling Road, Laoshan District, Qingdao, Shandong Patentee after: GOERTEK TECHNOLOGY Co.,Ltd. Address before: 261031 north of Yuqing street, east of Dongming Road, high tech Zone, Weifang City, Shandong Province (Room 502, Geer electronics office building) Patentee before: GoerTek Optical Technology Co.,Ltd. |