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...

环形向量非局部SAR图像降噪算法

Keywords: SAR图像降噪,非局部平均,环形向量,旋转不变性

Full-Text   Cite this paper   Add to My Lib

Abstract:

提出一种基于环形向量的非局部SAR图像降噪算法.根据像素点的主方向提取环形向量,计算环形向量各自的特征向量.基于特征向量计算相似度权重,该方法的时间复杂度明显优于NL-Means的矩形模板匹配算法,且相似点匹配具有旋转不变性.通过仿真实验验证了该算法的计算速度和旋转不变性能,匹配效果明显优于NL-Means,降噪结果的峰值信噪比和结构相似度优于BM3D、BLS-GSM等主流降噪算法.

References

[1]  Herbert Bay, Andreas Ess, Tinne Tuytelaars, et al. Speeded-up robust features(SURF)[J]. Computer Vision and Image Understanding, 2008,110(3):346-359.
[2]  Gleich D, Datcu M. Wavelet-based despeckling of SAR images using Gauss-Markov random fields[J]. IEEE Transactions on Geoscience and Remote Sensing, 2007,45(12):4127-4143.
[3]  Buades A, Coll B, Morel J M. A non-local algorithm for image denoising //Proceedings of 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition. San Diego: IEEE Press, 2005:60-65.
[4]  Lee J S. Digital image enhancement and noise filtering by use of local statistics[J]. IEEE Trans on Pattern Analysis and Machine Intelligence, 1980,2(2):165-168.
[5]  Kuan D T, Sawchuk A A, Strand T C, et al. Adaptive noise smoothing filter for images with signal-dependent noise[J]. IEEE Trans on Pattern Analysis and Machine Intelligence, 1985,7(2):165-177.
[6]  Buades A, Coll B, Morel J M. A review of image denoising algorithms, with a new one[J]. SIAM Journal on Multiscale Modeling and Simulation, 2005,4(2):490-530.
[7]  Lu Y H, Tan S Y, Yeo T S, et al. Adaptive filtering algorithms for SAR speckle reduction //Proceedings of International Geoscience and Remote Sensing Symposium. Lincoln, NE: IEEE Press,1996:67-69.
[8]  Amirmazlaghani M, Amindavar H. Two novel Bayesian multiscale approaches for speckle suppression in SAR images[J]. IEEE Trans on Geoscience and Remote Sensing, 2010,48(7):2980-2993.
[9]  Hore\'A, Ziou D. Image quality metrics: PSNR vs. SSIM //Proceedings of 20th International Conference on Pattern Recognition. Istanbul: IEEE Press, 2010:2366-2369.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133