摘要
Ｓｈａｐｉｒｏ的零树编码算法是小波域中一种很成功的算法，但该算法没有考虑视觉特性。该文考虑了视觉的频率特性及方向特性，用Ｍａｎｎｏｓ的视觉模型计算各子带的视觉权值，对零树算法进行了改进，提高了编码重构图像的视觉质量。
Shapho's Zerotree coding algorithm is a successful one in wavelet domain,but without considering visualcharacteristicIn this Paper the frequency and direction characteristics of human visual system are considered .Thezerotree algorithm is improved with visual weights of each subband,calculated with mannos's visual model,thus reconstructed image visual quality is improved.
出处
《计算机工程与应用》
CSCD
北大核心
1999年第6期53-55,共3页
Computer Engineering and Applications
