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Partial Shape Matching Using Transformation Parameter Similarity
Author(s) -
Guerrero Paul,
Auzinger Thomas,
Wimmer Michael,
Jeschke Stefan
Publication year - 2015
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/cgf.12509
Subject(s) - pointwise , transformation (genetics) , rigid transformation , computer science , matching (statistics) , similarity (geometry) , matrix similarity , computer graphics , shape analysis (program analysis) , algorithm , artificial intelligence , computer vision , mathematics , image (mathematics) , mathematical analysis , partial differential equation , static analysis , biochemistry , chemistry , statistics , gene , programming language
In this paper, we present a method for non‐rigid, partial shape matching in vector graphics. Given a user‐specified query region in a 2D shape, similar regions are found, even if they are non‐linearly distorted. Furthermore, a non‐linear mapping is established between the query regions and these matches, which allows the automatic transfer of editing operations such as texturing. This is achieved by a two‐step approach. First, pointwise correspondences between the query region and the whole shape are established. The transformation parameters of these correspondences are registered in an appropriate transformation space. For transformations between similar regions, these parameters form surfaces in transformation space, which are extracted in the second step of our method. The extracted regions may be related to the query region by a non‐rigid transform, enabling non‐rigid shape matching.