全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

基于提升方向波变换域的SAR图像压缩

Keywords: 方向波变换,提升方案,SAR图像压缩,多级零树

Full-Text   Cite this paper   Add to My Lib

Abstract:

提出了一种基于提升方向波变换SAR图像的压缩算法.该算法构造了方向波变换的提升方案,通过改进的四叉树分块算法寻找局部最优的变换方向,有效地描述了图像中的方向特征.根据变换系数分布特性构造了多方向各向异性的多级零树结构,提高了编码效率.对多幅SAR图像的压缩实验表明,较之基于小波的SPIHT和JPEG2000等算法,本文方法在性能指标和视觉效果方面均得到了明显提高,尤其在低比特率下,优势更加突出.

References

[1]  【1】Taubman D, Marcellin M. JPEG2000: Image Compression Fundamentals, Standards, and Practice [M]. Norwell, MA: Kluwer, 2002.
[2]  SHA Yu-Heng,CONG Lin,SUN Qiang,et al. Multiscale image segmentation based on contourlet domain hidden Markov trees model[J]. J. Infrared Millim. Waves (沙宇 恒,丛琳,孙强,等.基于Contourlet域HMT模型的多尺 度图像分割.红外与毫米波学报 ),2005,24(6):472-476.
[3]  【3】Do M N, Vetterli M. The finite ridgelet transform for image representation[J]. IEEE Trans. Image Process., 2003, 12 (1):16—28.
[4]  【4】Candès E J, Donoho D L. Curvelets: a surprisingly effective nonadaptive representation for objects with edges [C]. In Curve and Surface Fitting, A. Cohen, C. Rabut, and L. L. Schumaker, Eds. Nashville, TN: Vanderbilt Univ. Press, 1999.
[5]  【5】Pennec E L, Mallat S. Sparse geometric image representations with bandelets[J]. IEEE Trans. Image Process., 2005, 14 (4):423—438.
[6]  【6】Do M N, Vetterli M. The contourlet transform: An efficient directional multiresolution image representation[J]. IEEE Trans. Image Process., 2005, 14 (12):2091—2106.
[7]  【7】YANG Shu-Yuan, WANG Min, JIAO Li-Cheng. High-ratio compression of remote sensing image based on ridgelet and neural network[J]. J. Infrared Millim. Waves (杨淑媛, 王 敏, 焦李成.基于脊波和神经网络的大压缩比遥感图像 压缩. 红外与毫米波学报 ), 2007, 26 (4):297—301.
[8]  【8】Ding W, Wu F, Wu X, et al. Adaptive directional liftingbased wavelet transform for image coding[J]. IEEE Trans. Image Process., 2007, 16 (2):416—427.
[9]  【9】Velisavljevi c\' V, Beferull-Lozano B, Vetterli M, et al. Space-frequency quantization for image com pression with directionlets[J]. IEEE Trans. Image Process., 2007, 16 (7):1761—1773.
[10]  【10】Said A, Pearlman W A. A new fast and efficient image codec based on set partitioning in hierarchical trees[J]. IEEE Trans. Circuits Syst. Video Technol., 1996, 6 (3): 243—250.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133