A study on three dimensional rotation-free character recognition and rotation angle estimation of characters

Ryo Narita, Wataru Oyama, Tetsushi Wakabayashi, Fumitaka Kimura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

This paper addresses the problem of recognizing rotated characters in scene and estimating the rotation angle using Weighted Direction Code Histogram (WDCH) and Modified Quadratic Discriminant Function (MQDF). In our previous paper [1], we proposed a rotation-free character recognition method and confirmed the feasibility of real world application. We also applied our method to scene analysis to detect surface normal from written characters by estimating rotation angle of the characters. In this research, we evaluate how precisely our proposed method can estimate rotation angle by comparing obtained result by 3D digitizer.

Original languageEnglish
Title of host publicationICPR 2012 - 21st International Conference on Pattern Recognition
Pages677-680
Number of pages4
Publication statusPublished - Dec 1 2012
Event21st International Conference on Pattern Recognition, ICPR 2012 - Tsukuba, Japan
Duration: Nov 11 2012Nov 15 2012

Publication series

NameProceedings - International Conference on Pattern Recognition
ISSN (Print)1051-4651

Other

Other21st International Conference on Pattern Recognition, ICPR 2012
CountryJapan
CityTsukuba
Period11/11/1211/15/12

Fingerprint

Character recognition

All Science Journal Classification (ASJC) codes

  • Computer Vision and Pattern Recognition

Cite this

Narita, R., Oyama, W., Wakabayashi, T., & Kimura, F. (2012). A study on three dimensional rotation-free character recognition and rotation angle estimation of characters. In ICPR 2012 - 21st International Conference on Pattern Recognition (pp. 677-680). [6460225] (Proceedings - International Conference on Pattern Recognition).

A study on three dimensional rotation-free character recognition and rotation angle estimation of characters. / Narita, Ryo; Oyama, Wataru; Wakabayashi, Tetsushi; Kimura, Fumitaka.

ICPR 2012 - 21st International Conference on Pattern Recognition. 2012. p. 677-680 6460225 (Proceedings - International Conference on Pattern Recognition).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Narita, R, Oyama, W, Wakabayashi, T & Kimura, F 2012, A study on three dimensional rotation-free character recognition and rotation angle estimation of characters. in ICPR 2012 - 21st International Conference on Pattern Recognition., 6460225, Proceedings - International Conference on Pattern Recognition, pp. 677-680, 21st International Conference on Pattern Recognition, ICPR 2012, Tsukuba, Japan, 11/11/12.
Narita R, Oyama W, Wakabayashi T, Kimura F. A study on three dimensional rotation-free character recognition and rotation angle estimation of characters. In ICPR 2012 - 21st International Conference on Pattern Recognition. 2012. p. 677-680. 6460225. (Proceedings - International Conference on Pattern Recognition).
Narita, Ryo ; Oyama, Wataru ; Wakabayashi, Tetsushi ; Kimura, Fumitaka. / A study on three dimensional rotation-free character recognition and rotation angle estimation of characters. ICPR 2012 - 21st International Conference on Pattern Recognition. 2012. pp. 677-680 (Proceedings - International Conference on Pattern Recognition).
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