IEEE Transactions on Pattern Analysis and Machine Intelligence
Structure Extraction from Decorated Characters Using Multiscale Images
IEEE Transactions on Pattern Analysis and Machine Intelligence
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We propose a pattern matching method for machine recognition of Chinese characters that are extracted from low quality document images. This method employs deformation representation, called character deformation model, to guide the detailed matching between templates and unknown characters. Experimental results show that the proposed method is very effective at recognizing deformed characters extracted from low resolution images or Xerox copy documents. A recognition rate of 95.7% is achieved for 200dpi document images, and the accumulated recognition rate of the first 3 candidates is higher than 99.8%. Moreover, even for the 100dpi document images, the third accumulated recognition rate is still above 91%.