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Digital knots

delete2000-09-01
delete3
PRE
AI
A
Akira Nakamura
A
Azriel Rosenfeld *
DOI：10.1016/S0031-3203(99)00125-9delete
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Abstract

Abstract

En 中文
We define digital (6-)knots in Z(3), and discuss how they are related to isothetic polygonal knots in R-3. We introduce a class of topology-preserving simple deformations (SD) of digital images, and show that isomorphic knots have digitizations that differ by SD, and conversely. We also define regular position for isothetic links and digital links, and show that SD can be used to put any digital knot into such a position and to perform Reidemeister moves on the resulting projection. (C) 2000 Pattern Recognition Society. Published by Elsevier Science Ltd. All rights reserved.
Keywords:
digital knot
isothetic knot
isomorphism
simple deformation
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Journal

Pattern Recognition cover
Pattern Recognition
IF:
7.6
Papers:
1.3W
Citations:
4.5W

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