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Accuracy of laplacian edge detectors

โœ Scribed by Valdis Berzins

Book ID
103912785
Publisher
Elsevier Science
Year
1984
Weight
38 KB
Volume
25
Category
Article
ISSN
0734-189X

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โœฆ Synopsis

The sources of error for the edge finding technique proposed by Marr and Hildreth are identified, and the magnitudes of the errors are estimated, based on idealized models of the most common error producing situations. Errors are shown to be small for linear illuminations, as well as for nonlinear illuminations with a second derivative less than a critical value. Nonlinear illuminations are shown to lead to spurious contours under some conditions, and some fast techniques for discarding such contours are suggested.

NOTE

๐Ÿ“œ SIMILAR VOLUMES

Mixtures of derivative operators as edge
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โœ R.B. Eberlein; J.S. Weszka ๐Ÿ“‚ Article ๐Ÿ“… 1975 ๐Ÿ› Elsevier Science โš– 243 KB

Derivative operators such as the gradient and Laplacian have been used for many years to detect edges in pictures. This note points out a possible advantage of using combinations of such operators for edge detection.

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