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Space-variant optical character recognition

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3 Author(s)
Ong, P.W. ; Vision Appl., New York, NY, USA ; Wallace, R.S. ; Schwartz, E.L.

An active vision system with a multiresolution sensor has the advantages of a wide visual field, high central resolution and low data rate. The authors use a special space-variant sensor based on complex log mapping to do character recognition in real scenes. The authors describe experiments with feature designs based on several statistical OCR methods: characteristic loci, partition and projection. The authors also examine several rotation-invariant feature designs based on the partition and projection methods. After studying the problem of recognizing strings in real scenes. The authors derive a rule based approach to solve the attention problem in the context of pattern recognition. Finally the authors describe an active vision system which successfully recognizes characters on a license plate in a real scene

Published in:

Pattern Recognition, 1992. Vol.II. Conference B: Pattern Recognition Methodology and Systems, Proceedings., 11th IAPR International Conference on

Date of Conference:

30 Aug-3 Sep 1992