基于提升方案与SPIHT算法相结合用于图像的无损压缩  

Research on the application of lifting scheme in image lossless compression

作　　者：解成俊[1] 刘艳滢[2] 李晓滨[2] 王延杰[2] 赵贵军 

机构地区：[1]北华大学,吉林吉林市132033 [2]中国科学院长春光学精密机械与物理研究所,吉林长春130022 [3]总装驻长春地区军事代表室,吉林长春130022

出　　处：《光学精密工程》2002年第6期564-568,共5页Optics and Precision Engineering

基　　金：中国科学院知识创新工程青年基金资助项目(Q01H01)

摘　　要：研究了基于提升方案的CDF(m,n)双正交小波变换结合SPIHT应用于图象无失真压缩编码的方法。实验结果表明,基于提升方案和整数运算的CDF(m,n)变换是整-整可逆变换,CDF(2,n)的无失真压缩性能好于流行的Huffman、WinRar、Raw+WinZip、JPEGLS。压缩比分别比上述编码方法提高了62%,47%,44%,32%左右。运算速度快,便于硬件实现。This paper studies an image lossless compression coding method based on the CDF (m,n)invertible or thogonal wavelet transform of lifting scheme and SPIHT. The experimental results show that the CDF(m,n) transform based on lifting scheme and integer operation, is an integer_integer invertible transform, and that the image lossless compression performance of CDF(2,n) is better than that of Huffman, NinRar,Raw+WinZip, JPEGLS. The compression rate has been improved by 62%,47%,44% and 32%,respectively.Its fast operation speed makes hardware implementation easier.

关 键 词：提升方案 无失真图像压缩 可逆双正交小波变换 SPIHT 

分 类 号：TN919.81[电子电信—通信与信息系统]