A Noise-Adaptive Discriminant Function and Its Application to Blurred Machine-Printed Kanji Recognition

Authors:
Shin'ichiro Omachi;Fang Sun;Hirotomo Aso
Affiliations:
Tohoku Univ., Sendai-shi, Japan;Tohoku Gakuen Univ., Sendai-shi, Japan;Tohoku Univ., Sendai-shi, Japan
Venue:
IEEE Transactions on Pattern Analysis and Machine Intelligence
Year:
2000

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Abstract

Accurate recognition of blurred images is a practical but previously to mostly overlooked problem. In this paper, we quantify the level of noise in blurred images and propose a new modification of discriminant functions that adapts to the level of noise. Experimental results indicate that the proposed method actually enhances the existing statistical methods and has impressive ability to recognize blurred image patterns.