基于内容的视频压缩改进算法

Content-based compression algorithm for video stream

由于时间的连续性,视频前后帧图像有很大的相似性,视频图像前后帧存在着很大的时间冗余。针对视频图像的帧间冗余,在传统的视频编码算法基础上,提出一种基于匹配内容的视频压缩改进算法,根据实际视频图像的不同,选取不同的编码策略,并采用零树小波变换算法,使压缩比和实时性得到很大的提高。

There is lots of temporal redundancy for the current image is similar to the prior image in the video frame sequence. A zero- tree wavelet video coding algorithm with extremely high compression is presented. The temporal redundancy with multiple strategies based on different content is reduced. With the algorithm we have realized the real-time compression of video streams with high fidelity.