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Title: A scale-space filtering approach for visual feature extraction
Authors: Xin, K.
Lim, K.B. 
Hong, G.S. 
Keywords: Curvature
Gaussian smoothing
Local Extreme Curvature Point
Scale level
Scale-space filtering
Visual feature extraction
Issue Date: 1995
Citation: Xin, K., Lim, K.B., Hong, G.S. (1995). A scale-space filtering approach for visual feature extraction. Pattern Recognition 28 (8) : 1145-1158. ScholarBank@NUS Repository.
Abstract: This paper presents a new integrated approach for detecting visual features which include CORNERs, ENDs, ARCs and LINEs. The effect of scale-space filtering on visual features is studied in detail as it forms the theoretical basis of our work. In this approach, the outline of the object is first extracted and it is then smoothed by scale-space filtering at different scale levels. Subsequently, the Local Extreme Curvature Points extracted from the smoothed curve and END candidates are determined to guide the termination of the filtering process. Information about the curvature of each point at the largest scale level is used to detect the different kinds of visual features. Several algorithms are proposed to determine CORNERS, ENDs, ARCs and LINEs. Experimental results show that our approach is robust to translation, rotation and scaling of the object as well as noise corruption. In addition, efficient visual features can also be successfully extracted with this approach.
Source Title: Pattern Recognition
ISSN: 00313203
DOI: 10.1016/0031-3203(95)00007-M
Appears in Collections:Staff Publications

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