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对称局部能量模型:改进的局部能量模型 被引量:2
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作者 肖志涛 侯正信 国澄明 《信号处理》 CSCD 2004年第1期1-4,共4页
本文对局部能量模型进行改进,提出了一种新的基于相位信息的图像特征检测算法——对称局部能量模型(SLE)。该算法以log Gabor小波为基本工具,只用四个对称相位进行图像特征检测,检测结果符合人类视觉系统特性。SLE不但可以检测阶跃特征... 本文对局部能量模型进行改进,提出了一种新的基于相位信息的图像特征检测算法——对称局部能量模型(SLE)。该算法以log Gabor小波为基本工具,只用四个对称相位进行图像特征检测,检测结果符合人类视觉系统特性。SLE不但可以检测阶跃特征、线特征等亮度特征,还可以同时检测到马赫带现象和正弦网格中的特征,而基于亮度梯度的算法和局部能量模型都不能做到这一点。与局部能量模型相比,SLE还提高了抗噪能力和特征定位性能。 展开更多
关键词 图像特征检测算法 图像处理 模式识别 对称局部能量模型 局部能量模型 数学模型
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NEW CORNER DETECTION ALGORITHM BASED ON MULTI-FEATURE SYNTHESIS 被引量:3
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作者 邱卫国 昂海松 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2004年第3期174-178,共5页
Corner detection is a chief step in computer vision. A new corner detection algorithm in planar curves is proposed. Firstly, from the human perception, two key characteristics are given as an amendment of the traditio... Corner detection is a chief step in computer vision. A new corner detection algorithm in planar curves is proposed. Firstly, from the human perception, two key characteristics are given as an amendment of the traditional corner properties. Based on the two properties, the concept of the fuzzy set is introduced into a detection. Secondly, the extracted-formulae of three groups including the features of the corner subject degree are derived. Through synthesizing the features of three groups, the judgments of the corner detection, location, and optimization are obtained. Finally, by using the algorithm the detection results of several examples and feature curves for some interested parts, as well as the detection results for the test images history in references are given. Results show that the algorithm is easily realized after adopting the fuzzy set, and the detection effect is very ideal. 展开更多
关键词 image feature corner detection fuzzy infe-rence subject degree
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