Fast Affine Invariant Shape Recognition Using Uniqueness of Arrangement of Points
Language
Japanese
Type
Proceedings of Japanese Conferences
Authors
Akira Horimatsu, Masakazu Iwamura, Koichi Kise
Title
Fast Affine Invariant Shape Recognition Using Uniqueness of Arrangement of Points
Journal
IEICE Technical Report
Presentation number
PRMU2008-229
Pages
pp.127-132
Reviewed
Not reviewed
Date
February 2009
Research fields
Pattern recognition
Key
Horimatsu2009_IEICEPRMU (id=1058)
Abstract
Geometric hashing is an object recognition method using arrangements of feature points. This method
is a robust retrieval method against geometric transformations by examining all of possible coordinate systems. We
use the geometric hashing to recognize characters undergone affine transformation. However, the more feature points are, the more coordinate systems are. Thus computational cost of recognizing characters is large. We propose a
method to reduce the computational cost by restricting possible coordinate systems. By experiments, we confirmed that the proposed method can recognize characters faster.
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