关键词: 小波视频编码, 嵌入式编码, 四叉树编码

Abstract: Motion compensated prediction (MCP) error image has significant amplitudes mainly along the boundaries of moving objects, correspondingly its wavelet coefficients contain large energy in high frequency bands. This greatly reduces the coding efficiency of EZW. It is first provided that the correspondence between the significant amplitudes area of the MCP error image and the wavelet coefficient significant map, then encode the significant map efficiently using quadtree approach, followed by bit-plane coding the significant coefficients to produce an embedded data stream. Experiment result shows that compared to EZW and ZTE, the proposed algorithm is more efficient and has better performance.

Key words: wavelet video coding, embedded coding, quadtree coding