摘要： 提出了基于ＩＣＧＩ运动补偿技术的视频小波编码方案，改进控制点栅格内插（ＩＣＧＩ）可更好地利用有限的运动矢量对当前帧的预测值进行合理内插；对预测差值图象使用小波技术以消除图象中的相关．实验表明，基于ＩＣＧＩ运动补偿的视频小波编码能获得满意的主观和客观效果，这种方案是对低比特率环境下视频编码方案（Ｈ．２６３等）的有力补充．

关键词: 改进控制点栅格内插, 视频编码, 子波变换

Abstract: Warping, also known as Control Grid Interpolation(CGI). estimates intensities in the present frame through an interpolation of motion vector stypically with bilinear interpolation. This paper presents an Improved Control Grid Interpolation(ICGI) methods for warping prediction. A motion estimation technique using ICGI will greatly reduce temporal redundancies in a given video clips. Using a wavelet transform, the prediction error image is decorrelated to obtain wavelet coefficients. Ouantization and entropy coding are also used to complete the video coding chain. The combined coding strategy performs both consistently and Significantly better than method does individually.

中图分类号: 

• TN919.8