Affine-invariant character recognition by progressive removing

Masakazu Iwamura; Akira Horimatsu; Ryo Niwa; Koichi Kise; Seiichi Uchida; Shinichiro Omachi

doi:10.1002/eej.22276

Affine-invariant character recognition by progressive removing

Masakazu Iwamura, Akira Horimatsu, Ryo Niwa, Koichi Kise, Seiichi Uchida, Shinichiro Omachi

Real world robotics

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Recognizing characters in scene images suffering from perspective distortion is a challenge. Although there are some methods to overcome this difficulty, they are time-consuming. In this paper, we propose a set of affine-invariant features and a new recognition scheme called "progressive removing" that can help reduce the processing time. Progressive removing gradually removes less feasible categories and skew angles by using multiple classifiers. We observed that progressive removing and the use of the affine invariant features reduced the processing time by about 60% in comparison to a trivial algorithm without decreasing the recognition rate. © 2012 Wiley Periodicals, Inc. Electr Eng Jpn, 180(2): 55-63, 2012; Published online in Wiley Online Library (). DOI 10.1002/eej.22276

Original language	English
Pages (from-to)	55-63
Number of pages	9
Journal	Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
Volume	180
Issue number	2
DOIs	https://doi.org/10.1002/eej.22276
Publication status	Published - Jul 30 2012

All Science Journal Classification (ASJC) codes

Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1002/eej.22276

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AU - Iwamura, Masakazu

AU - Horimatsu, Akira

AU - Niwa, Ryo

AU - Kise, Koichi

AU - Uchida, Seiichi

AU - Omachi, Shinichiro

PY - 2012/7/30

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AB - Recognizing characters in scene images suffering from perspective distortion is a challenge. Although there are some methods to overcome this difficulty, they are time-consuming. In this paper, we propose a set of affine-invariant features and a new recognition scheme called "progressive removing" that can help reduce the processing time. Progressive removing gradually removes less feasible categories and skew angles by using multiple classifiers. We observed that progressive removing and the use of the affine invariant features reduced the processing time by about 60% in comparison to a trivial algorithm without decreasing the recognition rate. © 2012 Wiley Periodicals, Inc. Electr Eng Jpn, 180(2): 55-63, 2012; Published online in Wiley Online Library (). DOI 10.1002/eej.22276

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Affine-invariant character recognition by progressive removing

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