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Synthesis method of three-dimensional image in case that non-integer sub-pixel is covered by column lens raster

A lenticular grating and stereoscopic image technology, which is applied in the field of stereoscopic display image synthesis, can solve problems such as the appearance of remaining pixels, affect the stereoscopic display effect, and synthesized image errors, and achieve the effects of eliminating ghosting, improving the stereoscopic display effect, and improving quality

Inactive Publication Date: 2012-04-18
HEFEI UNIV OF TECH
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for synthesizing a stereoscopic image under the condition that a lenticular grating covers non-integer sub-pixels, so as to solve the problem of residual pixels appearing when synthesizing a stereoscopic image in the prior art method, resulting in errors in synthesizing the image and affecting the stereoscopic display problem of effect

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  • Synthesis method of three-dimensional image in case that non-integer sub-pixel is covered by column lens raster
  • Synthesis method of three-dimensional image in case that non-integer sub-pixel is covered by column lens raster
  • Synthesis method of three-dimensional image in case that non-integer sub-pixel is covered by column lens raster

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Embodiment Construction

[0016] Taking a lenticular autostereoscopic display with 9 viewpoints as an example, the inclination angle of the lenticular grating in the autostereoscopic display is arctan(1 / 6).

[0017] 1. Use the black and white striped grating as the detection grating to measure the precise line number LPI of the cylindrical lens grating;

[0018] Such as figure 1 shown. The nominal number of lines of the lenticular lens grating is not the exact number of lines when it leaves the factory, but the lenticular autostereoscopic display needs to know the exact line number of the lenticular lens grating, and the detection grating is black and white stripes corresponding to the nominal line number and the exact line number raster. Using the spectroscopic principle of cylindrical mirror grating, a black and white striped grating is made as the detection grating. The grating pitch of the black and white stripe grating is equal to the grating pitch of the lenticular lens grating. The black and...

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Abstract

The invention discloses a synthesis method of a three-dimensional image in the case that a non-integer sub-pixel is covered by a column lens raster. The method comprises the following steps of: measuring the accurate line number of the column lens raster, computing the number of the sub-pixel covered by each column lens unit according to the measured accurate line number of the raster, regularly screening the sub-pixel, and synthesizing the three-dimensional image according to the screened sub-pixel. The error when the image is synthesized can be reduced, so that the quality of the synthesized image can be greatly improved, the double image can be effectively eliminated, the method is applicable to coverage error with any fractional numbers, and the three-dimensional display effect can be improved.

Description

technical field [0001] The invention relates to the field of stereoscopic display image synthesis methods, in particular to a stereoscopic image synthesis method under the condition that a lenticular grating covers non-integer sub-pixels. Background technique [0002] Grating refers to a material that is attached to the outside of the picture or screen and enables people to see stereoscopic images using the principle of binocular parallax and light refraction. The grating used for autostereoscopic displays can be divided into three major categories: Classes: slit grating, cylindrical mirror grating, dot matrix grating. Among them, dot-matrix gratings are rare. At present, slit and lenticular gratings are more commonly used. Compared with slit gratings, lenticular gratings do not reduce the brightness of the display screen, so the gratings used in autostereoscopic displays are mainly lenticular gratings. [0003] At present, the mainstream representative of forming a stereos...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/00G02B27/22
Inventor 胡跃辉尹静吕国强施承佩吴娟李小哲
Owner HEFEI UNIV OF TECH
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