ICIAP 1995: Image Analysis and Processing pp 405-410 | Cite as
A proposal on local and adaptive determination of filter scale for edge detection
Abstract
In this work a proposal about local and adaptive scale selection in edge detection is presented. Such a proposal follows Canny's optimality criterion, i.e., the smallest scale that provides a minimum value for the signal to noise ratio should be selected for each edge pixel. The proposal exploits a local regularity, i.e. SNR, measure that is based on a simplified version of the Kitchen-Rosenfeld edge quality evaluator. This measure makes possible a local definition of the scale. The work has been carried out with non-directional gaussian smoothing operators. The integration of the results, obtained at different scales on a pixel basis, into a single edge map is also tackled. Experimental work on real images is presented.
Keywords
Edge Detection Edge Direction Neighboring Pixel Coarse Scale Central PixelReferences
- [1]Rosenfeld A., Thurston M., “Edge and curve detection for visual scene analysis”, IEEE Trans. on Computers, May 1971Google Scholar
- [2]Witkin A. P., “Scale-space filtering”, Proc. Int. Joint Conf. Artificial Intelligence 1983Google Scholar
- [3]Canny J., “A computational approach to edge detection”, IEEE Trans. on PAMI, November 1986Google Scholar
- [4]Bergholm F., “Edge focusing”, IEEE Trans. on PAMI November 1987Google Scholar
- [5]Jeong H., Kim C. I., “Adaptive determination of filter scale for edge detection”, IEEE Trans. on PAMI, May 1992Google Scholar
- [6]Kitchen L., Rosenfeld A., “Edge evaluation using local edge coherence”, IEEE Trans. on SMC, September 1981Google Scholar
- [7]Perona P., Malik J., “Scale-space and edge detection using anisotropic diffusion”, IEEE Trans. on PAMI, July 1990Google Scholar
- [8]Deriche R., “Fast algorithms for low-level vision”, IEEE Trans. on PAMI, January 1990Google Scholar