Recognition of planar shapes by a semi-differential invariant for moving triangles
type: Item
instance of: scholarly article
title: Recognition of planar shapes by a semi-differential invariant for moving triangles
zbMATH Open document ID: 1019.65016
DOI: 10.1016/S0377-0427(02)00728-8
author: Kumiko Tsuji
author: Miki Aoyagi
published in: Journal of Computational and Applied Mathematics
publication date: 2003-05-19T00:00:00Z
review text: For recognition of moving triangles, a method using the semi-differential invariant for pseudo-perspective projection is constructed requiring to catch two of original angles at vertices by simple and fast computation from photo information. The method works also for smooth contours and lines and recognizes local figure by very simple computations. The main idea is to consider image trajectories of circles placed properly. The method is applied to the recognition of three-dimensional tetrahedrons.
Mathematics Subject Classification ID: 65D17
zbMATH DE Number: 1912291
zbMATH Keywords: pattern recognition
zbMATH Keywords: planar shapes
zbMATH Keywords: semi-differential invariant
zbMATH Keywords: moving triangles
zbMATH Keywords: pseudo-perspective projection
zbMATH Keywords: photo information
reviewed by: Dana Petcu
MaRDI profile type: Publication
description: scientific article; zbMATH DE number 1912291