A regional decomposition method for recognizing handprinted characters

A regional decomposition method is proposed to facilitate pattern analysis and recognition. It splits a complicated pattern into several simple parts or sub-patterns, so that the pattern can be identified by examining the distinct parts. A complexity analysis is derived in this paper to prove the effectiveness of the regional decomposition method; mathematical and statistical formulas are also provided to evaluate the recognition rates of different parts. For a sample of 36 alphanumeric characters handprinted in 89 most common styles, the total mean recognition rates of parts have been found to be 30% higher than those obtained from subjective experiments. >

[1]  Patrick S.-P. Wang Character And Handwriting Recognition: Expanding Frontiers , 1991 .

[2]  Chiu-yu Tseng,et al.  A Mandarin Dictation Machine Based Upon a Hierarchical Recognition Approach and Chinese Natural Language Analysis , 1990, IEEE Trans. Pattern Anal. Mach. Intell..

[3]  Yuan Yan Tang,et al.  Splitting-Integrating Method for Normalizing Images by Inverse Transformations , 1992, IEEE Trans. Pattern Anal. Mach. Intell..

[4]  Kim L. Boyer,et al.  Robust Contour Decomposition Using a Constant Curvature Criterion , 1991, IEEE Trans. Pattern Anal. Mach. Intell..

[5]  Yuan Yan Tang,et al.  Shape Transformation Models and their Applications in Pattern Recognition , 1990, Int. J. Pattern Recognit. Artif. Intell..

[6]  Z. C. Li Discrete techniques for computer transformations of digital images and patterns , 1990, Pattern Recognit..

[7]  Azriel Rosenfeld,et al.  The Chain Pyramid: Hierarchical Contour Processing , 1990, IEEE Trans. Pattern Anal. Mach. Intell..

[8]  Isabelle Guyon,et al.  Design of a neural network character recognizer for a touch terminal , 1991, Pattern Recognit..

[9]  Kenneth H. Rosen,et al.  Discrete Mathematics and its applications , 2000 .

[10]  Craig H. Richardson,et al.  A Lower Bound for Structuring Element Decompositions , 1991, IEEE Trans. Pattern Anal. Mach. Intell..

[11]  Edward J. Delp,et al.  An Iterative Growing and Pruning Algorithm for Classification Tree Design , 1991, IEEE Trans. Pattern Anal. Mach. Intell..

[12]  Frank Y. Shih,et al.  Decomposition of gray-scale morphological structuring elements , 1991, Pattern Recognit..

[13]  Harry E. Stephanou,et al.  Information fractals for evidential pattern classification , 1990, IEEE Trans. Syst. Man Cybern..

[14]  Ching Y. Suen,et al.  Hierarchical attributed graph representation and recognition of handwritten chinese characters , 1991, Pattern Recognit..

[15]  Jaime López-Krahe,et al.  System for an intelligent office document analysis, recognition and description , 1993, Signal Process..

[16]  Kim-Teng Lua,et al.  A new approach to stroke and feature point extraction in Chinese character recognition , 1991, Pattern Recognit. Lett..

[17]  Azriel Rosenfeld,et al.  Hierarchical Image Analysis Using Irregular Tessellations , 1991, IEEE Trans. Pattern Anal. Mach. Intell..

[18]  P. J. Green,et al.  Probability and Statistical Inference , 1978 .

[19]  Yi Sun,et al.  Shape normalization through visible region center and unvisible region center , 1993, Pattern Recognit. Lett..

[20]  Feng Lin,et al.  Towards absolute invariants of images under translation, rotation, and dilation , 1993, Pattern Recognit. Lett..

[21]  Jianning Xu Decomposition of Convex Polygonal Morphological Structuring Elements into Neighborhood Subsets , 1991, IEEE Trans. Pattern Anal. Mach. Intell..

[22]  Ching Y. Suen,et al.  Building a new generation of handwriting recognition systems , 1993, Pattern Recognit. Lett..

[23]  Ching Y. Suen,et al.  Historical review of OCR research and development , 1992, Proc. IEEE.

[24]  Ching Y. Suen,et al.  A comparative study of nonlinear shape models for digital image processing and pattern recognition , 1990, IEEE Trans. Syst. Man Cybern..

[25]  C.Y. Suen,et al.  Analysis and recognition of alphanumeric handprints by parts , 1994, IEEE Trans. Syst. Man Cybern..

[26]  Sebastiano Impedovo,et al.  Frontiers in Handwriting Recognition , 1994 .