Title :
Lossless Image Compression Based on DPCM-IWPT
Author :
Li, Hua ; Zhu, Yiming
Author_Institution :
Sch. of Inf. Sci. & Eng., Northeastern Univ., Shenyang
Abstract :
In this paper a new lossless image compression method named DPCM-IWPT is proposed. First, wavelet packets transform (WPT) and lifting scheme (LS) are described. Then an application of the LS to WPT is presented which leads to the generation of integer wavelet packets transform (IWPT). After analyzing and implementing the effect of differential pulse code modulation (DPCM) on lossless image compression, a new method combining DPCM and IWPT (DPCM-IWPT) is proposed. Comparing with IWT and IWPT, the method DPCM-IWPT shows better performance in lossless image compression.
Keywords :
data compression; differential pulse code modulation; image coding; wavelet transforms; differential pulse code modulation; integer wavelet packets transform; lifting scheme; lossless image compression; Band pass filters; Communication system control; Filter bank; Image coding; Information science; Modulation coding; Pulse compression methods; Pulse modulation; Wavelet packets; Wavelet transforms; DPCM-IWPT; Image Compression; differential pulse code modulation (DPCM); integer wavelet packets transform (IWPT);
Conference_Titel :
Computing, Communication, Control, and Management, 2008. CCCM '08. ISECS International Colloquium on
Conference_Location :
Guangzhou
Print_ISBN :
978-0-7695-3290-5
DOI :
10.1109/CCCM.2008.281
