Title :
Zero-crossing contour construction for scale-space filtering
Author :
Dehghan, Hossein
Author_Institution :
LSI Logic Corp., Milpitas, CA, USA
Abstract :
The description of a signal or an image is only meaningful over a limited range of resolutions. The interest in and perception of different features of a signal depends not only on the signal, but on the scale of observation. Witkin (1983) has developed a multi-resolution method that looks at a signal over a continuum of scales in the course of describing it by finding the zero-crossing contour of a signal-fingerprint-and plotting the signal´s scale-space image. In this paper we present a fast and adaptive procedure for constructing the zero-crossing contours of a signal. We present two algorithms for finding the optimum smoothing scales and relating the zero-crossing of adjacent scales by our developed similarity measure.
Keywords :
signal resolution; smoothing methods; adaptive procedure; adjacent scales; fingerprint; multi-resolution method; optimum smoothing scales; resolution; scale-space filtering; scale-space image; similarity measure; zero-crossing contour construction; Convolution; Error correction; Filtering; Image resolution; Large scale integration; Logic; Microscopy; Signal resolution; Smoothing methods; Spatial resolution;
Conference_Titel :
Signals, Systems & Computers, 1997. Conference Record of the Thirty-First Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-8186-8316-3
DOI :
10.1109/ACSSC.1997.679150