Method for detecting stereo degree of autostereoscopic display by using random dot stereopsis

A stereoscopic display and random point technology, applied in the direction of instruments, optical components, optics, etc., can solve the problems of inability to accurately judge the stereoscopicity of the free stereoscopic display screen, and the inability to distinguish the real stereoscopic effect, and achieve the effect of avoiding interference factors

Inactive Publication Date: 2011-06-08
SHANGHAI UNIV
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  • Abstract
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Problems solved by technology

In view of the influence of people's visual habits and prior knowledge of the relationship between the front and back of the world scene (such as occlusion relationship, color relationship, texture relationship, etc.), when people use one eye to watch pictures with strong visual impact, they will also have Three-dimensionality, which will cause people to be unable to distinguish whether the three-dimensionality felt is the real three-dimensionality produced by the 3D display screen, so that the stereoscopicity of the autostereoscopic display screen cannot be accurately judged

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  • Method for detecting stereo degree of autostereoscopic display by using random dot stereopsis
  • Method for detecting stereo degree of autostereoscopic display by using random dot stereopsis
  • Method for detecting stereo degree of autostereoscopic display by using random dot stereopsis

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Embodiment Construction

[0052] Embodiments of the present invention will be further described in detail below in conjunction with the drawings and specific implementation methods. The embodiments of the present invention take a lenticular lens grating stereoscopic display as an example.

[0053] Generate a random dot map based on the resolution requirements for the stereogram of the lenticular display to be tested. Assuming that the lenticular lens grating display requires the resolution of the subsequent stereoscopic image to be N×M, then a random dot map with the same resolution of N×M and a grid structure with random gray values ​​is generated. The resolution of each small square is A×B, which can be adjusted according to the comfort of human eyes, such as image 3 , Figure 4 with Image 6 , Figure 7 shown. Figure 5 with Figure 8 respectively image 3 , 4 The group of random dot plots where and Image 6 , 7 Two random point stereograms are obtained by combining the random point maps....

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Abstract

The invention discloses a method for detecting the stereo degree of an autostereoscopic display by using random dot stereopsis. The method comprises the following steps: (1) designing random dot stereogram groups to compose the random dot stereopsis; (2) constructing a geometric model of binocular disparity to calculate a theoretical stereo depth value S obtained by both eyes; (3) observing the random dot stereopsis by eyes through the autostereoscopic display to obtain the actual stereo depth value; and (4) comparing the theoretical stereo depth value with the actual stereo depth value, calculating the error percentage epsilon of the actual stereo depth value in relative to the theoretical stereo depth value, and determining the stereo degree of the autostereoscopic display according to the error percentage. The method is visual, convenient, accurate and real-time in detecting the stereo degree. The random dot stereogram has controllable disparity, and the method can determine the stereo degree of the autostereoscopic display by observing the random dot stereopsis composed by random dot stereograms with different disparities, and comparing the actual stereo intensity with the theoretical value.

Description

technical field [0001] The invention relates to a method for detecting the stereoscopic degree of an autostereoscopic display by using a random point stereogram. Background technique [0002] When watching traditional 3D movies, viewers must wear polarizers (commonly have red and green glasses) to allow the left and right eyes to receive different images, forming parallax and creating a three-dimensional sense. In recent years, the emergence of autostereoscopic display technology enables human eyes to obtain realistic stereoscopic images with spatial depth information under naked vision conditions. At present, some display manufacturers, such as LG, Samsung, Sony, etc., have launched several autostereoscopic displays. How to conveniently and quickly detect the stereoscopic effect of an autostereoscopic display has become a problem worthy of attention. [0003] The stereoscopic effect of autostereoscopic displays can generally be considered from two methods: objective and s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/22
Inventor 张之江秦文张琦史浩谢捷
Owner SHANGHAI UNIV
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