跟踪式自由立体显示中一种降低串扰的显示方法
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黄子强(1956-),男,教授,主要从事光电子 领域及平板显示领域与液晶相关的研究.

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TP391.41

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诺基亚公司的资助


A method to minimize the crosstalk in eye-tracking auto-stereoscopic display by rearranging sub-pixels
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    摘要:

    针对传统光栅式自由立体显示中立体图像出现的串 扰甚至左右眼图像反转问题,在单用户的自由立体显示方式基础上, 提出了移动图像子像素以跟踪头部运动的左右眼视差的三维图像显示方法,通过跟踪人 眼位置,相应地移动图像的RGB子像素,实现视点物理位置的相 对改变,从而修正头部移动过程中左 右眼图像之间的关系。基于狭缝光栅式自由立体显示器的工作原理,根据其双目显示与串扰 参数的计算公 式,通过Matlab计算,导出了新旧两种方法 在最佳观看距离处的串扰分布的表达式。Tracepro仿真验证结果表明,基于本文提出的方 法能够校正视 点位置而跟踪正确的左右眼图像,实现头部移动过程中减小甚至消除串扰的目的。

    Abstract:

    In traditional grating auto-stereosco pic displays,the head movement would lead to position of 3D view point shifted b eyond the best view point,where right and left eyes would observe 3D images wit h crosstalk,or even reverse left and right eyes′ images,that is to say the cros stalk would be 100%.The eye tracking auto-stereoscopic display shceme for the i ndividual user is presented in this paper.In order to minimize the crosstalk of auto-stereoscopic dislays with parallax barrier when the viewer moves horizonta lly,a method of rearranging the RGB sub-pixels along with the movement is propo sed.The main point of the approach is that via tracing the position of the eyes, RGB sub-pixels accordingly migrate to compensate the relative shift of the view point,thereby the crosstalk of the right and left images caused by the movement of the head is corrected.The operation principle and the crosstalk formula of t he eye tracking display screen are given,both expressed in traditional grating a nd in sub-pixel rearranging schematics.This paper also presents the results of MATLAB calculation in the terms of the crosstalk distribution at the best view d istance in both traditional and proposed schematics.The result simulated by TRAC EPRO confirms that the approach suggested in this paper is able to follow the co rrect right eye and left eye images′ shift,and the crosstalk of auto-stereosco pic display caused by head movement will be reduced or even eliminated (16.7% ma x),which ensures that the better 3D experiences will be obtained at the designed view distance.

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引用本文

曾小名,田华,黄子强.跟踪式自由立体显示中一种降低串扰的显示方法[J].光电子激光,2013,(1):146~151

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  • 收稿日期:2012-06-08
  • 最后修改日期:2012-09-05
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