Method and apparatus for testing virtual reality head display device

Patent metadata

Field	Value
Publication number	US-10178379-B2
Application number	US-201715689675-A
Country	US
Kind code	B2
Filing date	Aug 29, 2017
Priority date	Aug 31, 2016
Publication date	Jan 8, 2019
Grant date	Jan 8, 2019

Abstract

A method and an apparatus are provided for testing a virtual reality head display device. The method includes: analyzing an acquired pair of images which corresponds to a test image to acquire sets of feature point positions; a left-eye feature point and a right-eye feature point for each set having the same preset color value which is a unique color value in the test image; determining a difference between a first relative position of the left-eye feature point in the left-eye image and a second relative position of the right-eye feature point in the right-eye image according to each set of feature point positions; and determining a result regarding whether the virtual reality head display device is capable to generate a stereoscopic image observable by human eyes according to the difference.

First claim

What is claimed is:

1. A method for testing a virtual reality head display device, comprising:
acquiring a pair of images from the virtual reality head display device, the pair of images including a left-eye image and a right-eye image generated by the virtual reality head display device corresponding to a test image;
analyzing the pair of images to acquire sets of feature point positions, each set of feature point positions including a first position of a left-eye feature point in the left-eye image and a second position of a right-eye feature point in the right-eye image, the left-eye feature point and the right-eye feature point for each set having the same preset color value, the preset color value having a unique color value among color values of pixels in the test image;
for each set of left-eye feature point and right-eye feature point, determining a difference between a first relative position of the left-eye feature point in the left-eye image and a second relative position of the right-eye feature point in the right-eye image according to the set of feature point positions; and
determining a result regarding whether the virtual reality head display device is capable to generate a stereoscopic image observable by human eyes according to the difference between the first relative position and the second relative position.

2. The method according to claim 1 , wherein determining the difference between a first relative position of the left-eye feature point in the left-eye image and a second relative position of the right-eye feature point in the right-eye image according to the set of feature point positions, comprises:
according to the set of feature point positions, determining a first distance between the left-eye feature point and a first border of the left-eye image and a second distance between the right-eye feature point and a second border of the right-eye image, each of the first border and the second border being a left border, or each of the first border and the second border being a right border; and
calculating a distance difference between the first distance and the second distance.

3. The method according to claim 2 , wherein determining the result regarding whether the virtual reality head display device is capable to generate a stereoscopic image observable by human eyes according to the difference between the first relative position and the second relative position, comprises:
determining that the virtual reality head display device does not satisfy a condition to generate a stereoscopic image observable by human eyes when it is determined that the distance difference between the first distance and the second distance is not within a preset range according to any one set of feature points.

4. The method according to claim 2 , further comprising:
acquiring N pairs of left-eye image and right-eye image generated by the virtual reality head display device for a plurality of times;
determining that the virtual reality head display device satisfies a condition to generate a stereoscopic image observable by human eyes, when it is determined that, for each of N pairs of left-eye images and right-eye images acquired, the distance difference between the first distance and the second distance is within a preset range according to each set of feature points, wherein N is an integer larger than or equal to 1.

5. The method according to claim 4 , wherein the N pairs of left-eye images and right-eye images are different from one another.

6. The method according to claim 1 , wherein the method further comprises:
acquiring the test image; and
analyzing the test image to acquire the preset color value.

7. The method according to claim 1 , further comprising:
executing a software of the virtual reality head display device to cause the virtual reality head display device to generate the pair of images corresponding to the test image previously stored.

8. An apparatus for testing a virtual reality head display device, comprising:
a processor; and
a memory for storing instructions executable by the processor;
wherein the processor is configured to perform:
acquiring a pair of images corresponding to a test image from the virtual reality head display device, the pair of images including a left-eye image and a right-eye image generated by the virtual reality head display device corresponding to a test image;
analyzing the pair of images to acquire sets of feature point positions, each set of feature point positions including a first position of a left-eye feature point in the left-eye image and a second position of a right-eye feature point in the right-eye image, the left-eye feature point and the right-eye feature point for each set having the same preset color value, the preset color value having a unique color value among color values of pixels in the test image;
for each set of left-eye feature point and right-eye feature point, determining a difference between a first relative position of the left-eye feature point in the left-eye image and a second relative position of the right-eye feature point in the right-eye image according to the set of feature point positions; and
determining a result regarding whether the virtual reality head display device is capable to generate a stereoscopic image observable by human eyes according to the difference between the first relative position and the second relative position.

9. The apparatus according to claim 8 , wherein determining the difference between a first relative position of the left-eye feature point in the left-eye image and a second relative position of the right-eye feature point in the right-eye image according to the set of feature point positions, comprises:
according to the set of feature point positions, determining a first distance between the left-eye feature point and a first border of the left-eye image and a second distance between the right-eye feature point and a second border of the right-eye image, each of the first border and the second border being a left border, or each of the first border and the second border being a right border; and
calculating a distance difference between the first distance and the second distance.

10. The apparatus according to claim 9 , wherein determining the result regarding whether the virtual reality head display device is capable to generate a stereoscopic image observable by human eyes according to the difference between the first relative position and the second relative position, comprises:
determining that the virtual reality head display device does not satisfy a condition to generate a stereoscopic image observable by human eyes when it is determined that the distance difference between the first distance and the second distance is not within a preset range according to any one set of feature points.

11. The apparatus according to claim 9 , wherein the processor is further configured to perform:
determining that the virtual reality head display device satisfies a condition to generate a stereoscopic image observable by human eyes, when it is determined that, for each of N pairs of left-eye images and right-eye images acquired, the distance difference between the first distance and the second distance is within a preset range according to each set of feature points, wherein N is an integer larger than or equal to 1.

12. The apparatus according to claim 8 , wherein the processor is further configured to perform:
acquiring the test image; and
analyzing the test image to acquire the preset color value.

13. The apparatus according to claim 11 , wherein the N pairs of left-eye images and right-eye images are different from

Assignees

• Beijing Xiaomi Mobile Software Co Ltd

Inventors

• Wang Boxuan
• Han Lu
• Meng Lin

Classifications

• H04N13/344 Primary

  with head-mounted left-right displays · CPC title

• H04N13/144

  for flicker reduction · CPC title

• H04N17/00

  Diagnosis, testing or measuring for television systems or their details · CPC title

• H04N13/398

  Synchronisation thereof; Control thereof · CPC title

• H04N2013/0081

  Depth or disparity estimation from stereoscopic image signals · CPC title