基于对象的编码模式优化选择算法

The Optimization Selection Algorithm of Coding Model Based on Object

各种视频压缩编码标准都是根据人们在不同领域中对声像数据的要求所制定的,并且随着人们的需求不断地发展。目前,视频压缩编码研究主要分为两个方向:一是基于传统的DCT 混合编码方案;另一个是基于第二代图像编码技术而提出的基于对象的编码方案。其中,基于对象的编码方法不仅能满足进一步获得更大的图像数据压缩比的要求,而且能够实现人机对话的功能,所以,我们认为它将是未来视频压缩编码的发展方向。本文对基于对象的编码模式选择算法进行了研究,借用了MPEG-4中视频对象的概念,提出了一种视频分割的方法。

Various video compressed coding standards are established in the sphere of difference according to people for the requirement of the data of voice and image,and developed continuously along with the demand of people. Now, video compressed coding research divides into two directions mainly:One is that DCT hybrid encoding scheme based on tradition;another is the coding scheme based on object of putting forward based on 2 generation image coding tech- nology. The coding method based on object,can not only satisfy the function that gets the requirement of larger image data compression ratio further and can realize man-machine interaction,so we think it will be future video compressed coding develop direction. In this paper,we study selection algorithm of the coding model based on object,and give the method of video cuts apart using the concept of video object in MPEG-4.