X3D裸眼可视立体显示器需要同时输入8个视点的信息,用户在一定角度范围内可以看到不同视角的立体画面显示。面向裸眼立体显示终端提出了一种立体视频编码方法,在编码端完成复杂的视差估计,压缩后的视差信息通过网络传输到立体显示终端以降低系统对用户终端的要求。用户终端采用基于视差图绘制的方法快速绘制出6个中间视点,实现裸眼可视立体显示器上的多视角立体画面显示。针对视差图的处理,给出了全局平滑和非边缘区域平滑两种视差图的处理方法。实验结果表明,与不对视差图进行平滑的方法相比,对视差图进行平滑能有效提高编码的整体率失真性能。

X3D auto-stereoscopic display needs 8 views as its input video signals so that the user can watch stereoscopic scenes from different angles within a certain range. An auto-stereoscopic display oriented stereoscopic video coding method is proposed, in which the disparity map is generated and compressed at the encoder to lower down the requirement to the user side. By using the decoded disparity map, 6 intermediate views can be easily and quickly rendered at the user side, and the stereoscopic video can be displayed on auto-stereoscopic terminal with multi angles of view. Global filtering and non-edge region filtering are employed to smooth the disparity map. Experimental results show that compared with un-smoothed disparity map, the rate-distortion performance can be improved by the proposed scheme with smoothed disparity map.