LOG-POLAR

作品数：4被引量：8H指数：2
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相关领域：自动化与计算机技术更多>>
相关作者：尚燕练秋生更多>>
相关机构：燕山大学更多>>
相关期刊：《Optoelectronics Letters》《计算机工程与应用》《Science China(Information Sciences)》《Journal of Shanghai Jiaotong university(Science)》更多>>
相关基金：国家自然科学基金国家重点基础研究发展计划湖北省自然科学基金更多>>
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Mutual Information Optimization Based Dynamic Log-Polar Image Registration
《Journal of Shanghai Jiaotong university(Science)》2015年第1期61-67,共7页张葵 张晓龙 徐新 付晓薇 
the National Natural Science Foundation of China(Nos.61440016,61273225 and 61201423);the Natural Science Foundation of Hubei Province(No.2014CFB247)
Log-polar transformation(LPT)is widely used in image registration due to its scale and rotation invariant properties.Through LPT,rotation and scale transformation can be made into translation displacement in log-polar...
关键词：image registration mutual information(MI) log-polar transformation(LPT) phase correlation technique 
A multi-scale and multi-orientation image retrieval method based on rotation-invariant texture features被引量：4
《Science China(Information Sciences)》2011年第4期732-744,共13页SHAO ZhenFeng LI DeRen ZHU XianQiang 
supported by the National Basic Research Program of China (Grant No. 2010CB731800);the High Technology Research and Development Program of China (Grant No. 2009AA121404);the National Natural Science Foundation Program (Grant No. 40801165);the Outstanding Doctoral Dissertation Nurture Fund of Wuhan University and the Self-Research Program for Doctoral Candidates (including M.Phil.-Ph.D.) of Wuhan University in 2008
Texture retrieval is a vital branch of content-based image retrieval. Rotation-invariant texture retrieval plays a key role in texture retrieval. This paper addresses three major issues in rotation-invariant texture r...
关键词：NSCT LOG-POLAR RADON rotation-invariant texture retrieval 
基于Log-Polar和DT-CWT的旋转不变纹理分类算法被引量：4
《计算机工程与应用》2007年第11期48-50,共3页尚燕 练秋生 
提出了一种基于对数-极坐标变换(Log-Polar)和双树复数小波变换(DT-CWT)的旋转不变纹理分类算法。该方法首先对纹理图像进行对数-极坐标变换将旋转转化为平移,再用具有平移不变性的双树复数小波对变换后的图像滤波并计算各子带的能量值...
关键词：旋转不变 纹理分类 对数-极坐标变换(Log—Polar) 双树复数 小波变换(DT—CWT) 支持向量机(SVM) 
Gradient descent approach for minimizing dissimilarity measure in log-polarimagery
《Optoelectronics Letters》2006年第4期302-304,共3页JIN Yong-jun JIANG You-yi 
SupportedbyNationalNaturalScienceFoundationofChina(GrantNo.60575013).
Log-polar mapping has been proposed as a very appropriate space-variant imaging model in active vision applications.There is no doubt about the importance of translation estimation in active visual tracking.In this pa...
关键词：图象处理 空间变量 图象模型 视频跟踪 
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