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A new one-pass algorithm to detect region boundaries
Date
2001-08-01
Author
Kaygin, S
Bulut, Mehmet Mete
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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In this paper, active chain is introduced as a chain coded contour whose shape is changed during iterations while it stays closed, clockwise and 4 connected. The iterations of the proposed algorithm move the chain items toward the interior region. This behaviour is similar to the active contours (snakes). If the initial contour is counter-clockwise, the same algorithm causes the active chain to expand like a balloon and detect the inner boundaries of the regions. The chain coded contours of all the separate regions can be detected in one pass in O(NM) where N and M are the image dimensions in pixels.
Subject Keywords
Active chains
,
Contour detection
,
Chain code
,
Segmentation
URI
https://hdl.handle.net/11511/57691
Journal
PATTERN RECOGNITION LETTERS
DOI
https://doi.org/10.1016/s0167-8655(01)00059-9
Collections
Department of Electrical and Electronics Engineering, Article