Wavelet-based Contourlet Coding Using SPECK Algorithm

摘要：

We proposed a new still image compression algorithm called CSPECK witch was constructed by the wavelet-based contourlet transform (WBCT) and set partitioning embedded block coding (SPECK).In the WBCT,the high frequency sub-band decomposed by the wavelet transform was further decomposed into multiple directional sub-bands by directional filter bank so as to explain the edge and texture of the image more sparsely.The SPECK algorithm exhibits lower complexity and more efficient compression ratio than SPIHT based on WBCT.Experimental results demonstrate that the proposed method is efficient in coding images that possess mostly textures and contours.The simulation results also show that this new coding algorithm increases the PSNR over CSPIHT.

作者: TIAN Xiu-wei ZHENG Xi-feng DING Tie-fu

作者单位: Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 13003 Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 13003

会议类型: 国际会议

会议名称: 9th International Conference on Signal Processing(第九届国际信号处理学术会议)(ICSP08)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-26（万方平台首次上网日期，不代表论文的发表时间）