减小倾斜光栅式自由立体显示串扰的方法

A Method to Reduce the Crosstalk in Autostereoscopic Displays Based on Slanted Parallax Barrier or Lenticular Lens

光栅式自由立体显示中将光栅倾斜放置来平衡立体图像分辨率在水平和竖直方向的损失,并同时减小莫尔条纹的影响.但是,却因此造成了相邻视点图像间的串扰.串扰的存在降低了立体图像质量,且易引起观看者的视觉疲劳.本文在分析串扰产生原因的基础上,进行逆向推导,提出了一种减小串扰的方法.该方法通过调整合成图像中各子像素的灰度值来使串扰后的图像为原本应该显示的图像以达到减小串扰的目的.实验验证了该方法的有效性.

In autostereoscopic diplays, the parallax barrier or lenticular lens is slanted to balance the loss of stereo image resolution in horizontal and vertical direction, and to reduce the moir fringe. However, the crosstalk between neighboring images is induced, which degrades the image quality, and causes visual fatigue of viewers. Based on the analysis of the cause of crosstalk, a method to reduce crosstalk is proposed by reverse thinking. The gray value of sub-pixels in synthetic image is adjusted to make the viewed image with crosstalk be equal to the original unadjusted image, and so the crosstalk is reduced. The experiment verifies the effectiveness of the proposed method.