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Fast matching algorithm for isodensity contours of faces based on chain coded description and interpolation of isodensity contours
Author(s) -
Natsumeda Ko,
Kato Yoshihiro,
Nakamura Osamu
Publication year - 2009
Publication title -
electronics and communications in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.131
H-Index - 13
eISSN - 1942-9541
pISSN - 1942-9533
DOI - 10.1002/ecj.10035
Subject(s) - computer science , face (sociological concept) , interpolation (computer graphics) , identification (biology) , matching (statistics) , chain (unit) , artificial intelligence , algorithm , computer vision , theoretical computer science , pattern recognition (psychology) , image (mathematics) , mathematics , linguistics , philosophy , botany , statistics , physics , astronomy , biology
A personal identification system based on isodensity maps in which the properties of a face are well reflected has been proposed. In the conventional method, however, there were problems in terms of the memory requirements for the registration of face images and the processing time. To alleviate these problems, a new matching scheme using chain coded isodensity maps is proposed. Isodensity contours are line pictures. Therefore, they can be converted to chain codes. By using the coded isodensity contours, the improvement of the processing performance can be expected in terms of the processing time and the memory size required. In this paper, a robust personal identification system for angled faces based on the chain coded isodensity maps is proposed. © 2009 Wiley Periodicals, Inc. Electron Comm Jpn, 92(7): 57–65, 2009; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/ecj.10035