1 September 2002 Simple nonlinear dual-window operator for edge detection
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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.
© (2002) Society of Photo-Optical Instrumentation Engineers (SPIE)
Eugenio Di Sciascio, Cataldo Guaragnella, "Simple nonlinear dual-window operator for edge detection," Optical Engineering 41(9), (1 September 2002). https://doi.org/10.1117/1.1497396 . Submission:
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