本文提出一种基于方向提升小波变换的多描述图像编码方法,以避免压缩图像在互联网和无线网络环境下因数据包传输出错或丢失而导致的图像质量严重下降。-In this paper, the direction of lifting wavelet transform based multiple descr iption image coding method, in order to avoid compression of images on the Internet and wireless net