Dr. Javad Sadri Profile

Dr. Javad Sadri

at Concordia Univ

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Proceedings Article | 17 January 2005 Paper

New approach for segmentation and recognition of handwritten numeral strings

Javad Sadri, Ching Suen, Tien Bui

Proceedings Volume 5676, (2005) https://doi.org/10.1117/12.586046

KEYWORDS: Image segmentation, Genetic algorithms, Neural networks, Databases, Detection and tracking algorithms, Feature extraction, Genetics, Neurons, Optical character recognition, Optimization (mathematics)

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In this paper, we propose a new system for segmentation and recognition of unconstrained handwritten numeral strings. The system uses a combination of foreground and background features for segmentation of touching digits. The method introduces new algorithms for traversing the top/bottom-foreground-skeletons of the touched digits, and for finding feature points on these skeletons, and matching them to build all the segmentation paths. For the first time a genetic representation is used to show all the segmentation hypotheses. Our genetic algorithm tries to search and evolve the population of candidate segmentations and finds the one with the highest confidence for its segmentation and recognition. We have also used a new method for feature extraction which lowers the variations in the shapes of the digits, and then a MLP neural network is utilized to produce the labels and confidence values for those digits. The NIST SD19 and CENPARMI databases are used for evaluating the system. Our system can get a correct segmentation-recognition rate of 96.07% with rejection rate of 2.61% which compares favorably with those that exist in the literature.

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