TY - GEN
T1 - SAR image compression using HVS model
AU - Wang, Aili
AU - Zhang, Ye
AU - Gu, Yanfeng
PY - 2006
Y1 - 2006
N2 - Generally synthetic aperture radar (SAR) image compression methods based on wavelet transform remove statistic redundancy of image data and neglect visual redundancy. In view of this problem, a new image compression method based on human visual system (HYS) is proposed in this paper. First SAR image is decomposed by wavelet transform, then wavelet coefficients in different subbands are weighted by the peak of contrast sensitivity function (CSF) curve in wavelet domain, at last set partitioning in hierarchical trees (SPIHT) algorithm is used to code the weighted wavelet coefficients to form embedded bit stream. Compression results show that comparing with conventional SPIHT algorithm, the method proposed in this paper gets better subject visual quality at the same compression ratio with almost equivalent objective evaluation results.
AB - Generally synthetic aperture radar (SAR) image compression methods based on wavelet transform remove statistic redundancy of image data and neglect visual redundancy. In view of this problem, a new image compression method based on human visual system (HYS) is proposed in this paper. First SAR image is decomposed by wavelet transform, then wavelet coefficients in different subbands are weighted by the peak of contrast sensitivity function (CSF) curve in wavelet domain, at last set partitioning in hierarchical trees (SPIHT) algorithm is used to code the weighted wavelet coefficients to form embedded bit stream. Compression results show that comparing with conventional SPIHT algorithm, the method proposed in this paper gets better subject visual quality at the same compression ratio with almost equivalent objective evaluation results.
KW - Contrast sensitivity function(CSF)
KW - Human visual system(HVS)
KW - SAR image compression
KW - Set partitioning in hierarchical trees(SPIHT) algorithm
UR - https://www.scopus.com/pages/publications/34547662115
U2 - 10.1109/ICR.2006.343264
DO - 10.1109/ICR.2006.343264
M3 - 会议稿件
AN - SCOPUS:34547662115
SN - 0780395824
SN - 9780780395824
T3 - CIE International Conference of Radar Proceedings
BT - 2006 CIE International Conference on Radar, RADAR 2006
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2006 CIE International Conference on Radar, RADAR 2006
Y2 - 16 October 2006 through 19 October 2006
ER -