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Method, apparatus, program and readable storage medium for character recognition

A character recognition and character technology, applied in the field of pattern recognition, can solve the problems of inability to obtain, insufficient consideration, and good recognition effect, and achieve the effect of improving accuracy, improving recognition accuracy, and expanding the number of samples

Inactive Publication Date: 2008-09-03
FUJITSU LTD
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Problems solved by technology

However, when these methods deal with highly deformed samples, because they also input training samples as a whole, it will also cause the support vector machine to consider some deformed samples insufficiently, thus failing to achieve good recognition results

Method used

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  • Method, apparatus, program and readable storage medium for character recognition
  • Method, apparatus, program and readable storage medium for character recognition
  • Method, apparatus, program and readable storage medium for character recognition

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Embodiment Construction

[0037] The present invention adopts a two-level structure to identify the input character samples. Since the wrongly identified samples at the first level are often deformed samples or slightly abnormal samples, these wrongly identified samples are separately identified and processed at the second level, so that large Amplitude improves recognition accuracy for deformed samples. The present invention will be described in detail below in conjunction with the accompanying drawings.

[0038] figure 1 It is a structural block diagram of the character recognition device of the present invention. As shown in the figure, the character recognition device of the present invention includes: a first-level classification decision-making unit 11, a confidence degree generation unit 12, a confidence degree judgment unit 13 and a second-level classification decision-making unit 14. In a preferred embodiment, the The character recognition device also includes an output unit 15 . Wherein, t...

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Abstract

The invention provides a method, a device, a program and a readable storage medium for identifying characters. The method comprises the steps of: identifying the input character samples to generate the identification result; generating degree of confidence of the identification result; in accordance with the degree of confidence, judging whether the input character samples belong to deformed samples, if not, regarding the identification result as the final identification result; if so, identifying the deformed samples and generate the final identification result. The technical proposal of the invention can effectively process the deformed samples by directly regarding the samples which are incorrectly identified at the first level as the basic training samples at the second level, thus improving the identification accuracy of the system.

Description

technical field [0001] The invention relates to the field of pattern recognition, in particular to the technology for recognizing deformed or slightly abnormal characters. Specifically, it is a character recognition method, device, program and readable storage medium. Background technique [0002] There are many techniques that can be used to recognize characters. A method that is widely used at present is a statistical-based identification method, such as Support Vector Machine (SVM) (for details, see V.N.Vapnik, Statistical Learning Theory, Springer, New York, 2nd edition, 1998, and C.J.C. Burges, A tutorial on support vector machines for pattern recognition, Data Mining and Knowledge Discovery, 2(2):121-167, 1998) is one of the best methods for character recognition. When using a support vector machine to recognize characters, usually a lot of character samples are collected in advance, and this sample set is also called a training set. Then the training set is input i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62
Inventor 黄开竹孙俊堀田悦伸藤本克仁直井聪
Owner FUJITSU LTD
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