A STUDY ON MEDIA SCALING OF MULTI-VIEW MOTION PICTURES

在作为运动图像的标准编码方法的MPEG2中，由于报头等所花费的信息，很难减少编码信息量。在立体运动图像中，众所周知，如果将高分辨率图像呈现给其中一只眼睛，人类不会注意到呈现给另一只眼睛的图像的退化。利用上述特性，可以在不被观察者注意的情况下压缩和传输多视点运动图像。在本研究项目中，提出了一种改进的联播编码方法，其中多视点运动图像中的一个位置采用MPEG2编码。对参考图像进行视差补偿，对其他图像进行视差补偿，残差图像以低的空间和时间分辨率进行编码。与MPEG2相比，编码这些图像所需的信息量约为十分之一。该方法可用于在与传统单频道节目相同的带宽上广播立体图像。

It is difficult to reduce the amount of encoded information in MPEG2, which is a standard encoding method for motion pictures, because of the information spent by headers and so on. In stereo motion pictures, it is known that if a high-resolution picture is presented to one of the eyes, human does not notice the degradation of the picture presented to the other eye. Using above-mentioned characteristics, it is possible to compress and transmit the multi-view motion pictures without noticed by the observer.In this research project, modified simulcast encoding method in which one of the positions in multi-view motion pictures is encoded by MPEG2 is proposed. Parallax compensation against reference pictures are applied to the other pictures, and the residual pictures are encoded in low space and time resolution. The amount of the information required to encode these pictures is about one tenth compared with MPEG2.The method can be applied to broadcast stereo pictures in the same bandwidth as conventional single channel program.