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Optical Engineering

Simple nonlinear dual-window operator for edge detection
Author(s): Eugenio Di Sciascio; Cataldo Guaragnella
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Paper Abstract

We propose a nonlinear edge detection technique based on a two-concentric-circular-window operator. We perform a preliminary selection of edge candidates using a standard gradient and use the dualwindow operator to reveal edges as zero-crossing points of a simple difference function depending only on the minimum and maximum values in the two windows. Comparisons with other well-established techniques are reported in terms of visual appearance and computational efficiency. They show that detected edges are surely comparable with Canny's and Laplacian of Gaussian algorithms, with a noteworthy reduction in terms of computational load.

Paper Details

Date Published: 1 September 2002
PDF: 5 pages
Opt. Eng. 41(9) doi: 10.1117/1.1497396
Published in: Optical Engineering Volume 41, Issue 9
Show Author Affiliations
Eugenio Di Sciascio, Politecnico di Bari (Italy)
Cataldo Guaragnella, Politecnico di Bari (Italy)


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