UNSPECIFIED (1997) Roof edge detection using regularized cubic B-spline fitting. PATTERN RECOGNITION, 30 (5). pp. 719-728. ISSN 0031-3203

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Abstract

A scheme employing one-dimensional (1-D) Regularized Cubic B-Spline (RCBS) fitting [G. Chen and Y. H. Yang, IEEE Trans. Systems Man Cybernet. 25, 636-693 (1995)] has been used successfully in the task of step edge detection. The regularized fitting is transformed into a quadratic energy equation to simplify the computation. This scheme, however, has three major limitations: it is non-linear, has a limited accuracy and is computationally expensive. This paper presents a modified scheme which overcomes these limitations. The modified scheme employs the I-D RCBS fitting on the horizontal and Vertical orientations of a window of an image to generate two I-D signals, which provide sufficient information about the local property of the sub-image for roof edge detection. Experimental results show that the scheme of roof edge detection is very sensitive to small signals. (C) 1997 Pattern Recognition Society.

Item Type:	Journal Article
Subjects:	Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software T Technology > TK Electrical engineering. Electronics Nuclear engineering
Journal or Publication Title:	PATTERN RECOGNITION
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD
ISSN:	0031-3203
Date:	May 1997
Volume:	30
Number:	5
Number of Pages:	10
Page Range:	pp. 719-728
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/17805

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