Word recognition using ideal word patterns

Sheila X. Zhao; Sargur N. Srihari

doi:10.1117/12.171128

23 March 1994 Word recognition using ideal word patterns

Sheila X. Zhao, Sargur N. Srihari

Proceedings Volume 2181, Document Recognition; (1994) https://doi.org/10.1117/12.171128
Event: IS&T/SPIE 1994 International Symposium on Electronic Imaging: Science and Technology, 1994, San Jose, CA, United States

Abstract

The word shape analysis approach to text recognition is motivated by discoveries in psychological studies of the human reading process. It attempts to describe and compare the shape of the word as a whole object without trying to segment and recognize the individual characters, so it bypasses the errors committed in character segmentation and classification. However, the large number of classes and large variation and distortion expected in all patterns belonging to the same class make it difficult for conventional, accurate, pattern recognition approaches. A word shape analysis approach using ideal word patterns to overcome the difficulty and improve recognition performance is described in this paper. A special word pattern which characterizes a word class is extracted from different sample patterns of the word class and stored in memory. Recognition of a new word pattern is achieved by comparing it with the special pattern of each word class called ideal word pattern. The process of generating the ideal word pattern of each word class is proposed. The algorithm was tested on a set of machine printed gray scale word images which included a wide range of print types and qualities.

Citation Download Citation

Sheila X. Zhao and Sargur N. Srihari "Word recognition using ideal word patterns", Proc. SPIE 2181, Document Recognition, (23 March 1994); https://doi.org/10.1117/12.171128

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