一种分形与小波混合视频编码算法FEZW  

FEZW:A New Fractal and Wavelet Hybrid Video Encoding Algorithm

作　　者：陈晨[1] 赵增华[1] 舒炎泰[1] 

机构地区：[1]天津大学计算机科学与技术系,天津300072

出　　处：《计算机应用研究》2007年第3期292-293,308,共3页Application Research of Computers

基　　金：国家自然科学基金资助项目(60472078);天津市自然科学基金资助项目(023601111)

摘　　要：将小波变换与分形理论相结合成为一种具有可伸缩性的混合视频编码算法FEZW(分形—嵌入式零树小波编码),该算法在嵌入式零树小波编码的基础上,应用分形理论进行帧间预测,不需运动估计和补偿。实验结果表明,该算法具有较好的视频质量可伸缩性,能有效改进图像码率下降时视频质量下降迅速的情况,适合于无线网络等高差错网络的视频传输。A fractal wavelet hybrid video encoding algorithm FEZW was proposed. Based on the EZW, this algorithm applied fractal theory in inter-frame prediction without motion vector estimation and compensation. The experiment results show that FEZW is quality scalable, the video quality decreases gracefully along with the increase of the truncated bit stream length. This feature is very suitable for video transmission over error-prone network, such as wireless networks.

关 键 词：分形 小波变换 分形-嵌入式零树小波编码 视频编码 

分 类 号：TP312[自动化与计算机技术—计算机软件与理论]