Design and performance analysis of oriented feature detectors
Design and performance analysis of oriented feature detectors
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DOI：
10.1117/1.2728751
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发表时间：
2007-04-01
影响因子：
1.1
通讯作者：
Rangayyan, Rangaraj M.
中科院分区：
文献类型：
--
作者：
Ayres, Fabio J.;Rangayyan, Rangaraj M.
定向特征检测器是图像理解中的基本工具，因为许多图像以定向特征的形式显示感兴趣的信息。已经开发了几种定向特征检测器;定向特征检测器的一些重要家族是可操纵滤波器和Gabor滤波器。在这项工作中，设计标准和性能分析，提出了以下定向特征检测器：高斯二阶导数可控滤波器;正交对高斯二阶导数可控滤波器;的真实的Gabor滤波器;复杂的Gabor滤波器;和一个线算子，已被证明优于高斯二阶导数可控滤波器中的曲线结构的检测在乳房X线照片。的检测器进行评估，在他们的能力，以检测定向功能的存在，以及在测试图像中存在的定向功能的角度的估计精度。结果表明，真实的Gabor滤波器产生最好的检测性能和角度精度，而线算子和可操纵滤波器提供了一个优势，在计算速度方面。(C)2007 SPIE和IS&T。
Oriented feature detectors are fundamental tools in image understanding, as many images display information of interest in the form of oriented features. Several oriented feature detectors have been developed; some of the important families of oriented feature detectors are steerable filters and Gabor filters. In this work, design criteria and performance analysis are presented for the following oriented feature detectors: the Gaussian second-derivative steerable filter; the quadrature-pair Gaussian second-derivative steerable filter; the real Gabor filter; the complex Gabor filter; and a line operator that has been shown to outperform the Gaussian second-derivative steerable filter in the detection of curvilinear structures in mammograms. The detectors are assessed in terms of their capability to detect the presence of oriented features as well as their accuracy in the estimation of the angle of the oriented features present in test images. It is shown that the real Gabor filter yields the best detection performance and angular accuracy, whereas the line operator and the steerable filter provide an advantage in terms of computational speed. (C) 2007 SPIE and IS&T.