Integral place name recognition method and integral place name recognition device

A recognition method and place name technology, applied in character and pattern recognition, instruments, calculations, etc., can solve problems such as reduced recognition accuracy, key character recognition errors, and reduced system reliability

Inactive Publication Date: 2010-02-10
FUJITSU LTD
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Problems solved by technology

[0009] One problem with this traditional method is that if the correct key characters are not extracted, the recognition will also be wrong, reducing the accuracy of the system
(1) due to figure 1 The key character extracting unit 602 matches each single character region with all characters of the single character dictionary (for Chinese characters, there are up to several thousand Chinese characters), so that keyword recognition errors will inevitably occur, thereby reducing the System recognition accura

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  • Integral place name recognition method and integral place name recognition device
  • Integral place name recognition method and integral place name recognition device
  • Integral place name recognition method and integral place name recognition device

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[0033] The address recognition device and method of the present invention will be described in detail below with reference to the drawings. In the drawings, the same reference numerals represent the same or similar components.

[0034] image 3 It is a block diagram of the address recognition device according to the first embodiment of the present invention. in image 3 In the single-character area detection unit 1, the input address image is divided into individual characters, and the image area of ​​each single character is called a single-character area. The key character extraction unit 2 extracts key characters based on the result of the single-character area detection unit 1. The place name area extraction unit 3 then extracts the place name area based on the key characters extracted in the key character extraction unit 2. The overall place name recognition unit 4 recursively and integrally recognizes the place name area extracted by the place name area extraction unit 3....

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Abstract

The invention relates to an integral place name recognition method and an integral place name recognition device. The integral place name recognition method comprises an integral recognition step for recognizing the place name in a place name image containing a certain executive-level place name, and the integral recognition step comprises an extracting step for extracting the eigenvector of the place name image and a matching step for matching the extracted eigenvector with the eigenvector of the place name in a gazetteer and searching for all possible candidate place names; the integral place name recognition method is characterized in that when the matching distance of the eigenvector of the place name in the gazetteer and the extracted eigenvector is smaller than a preset threshold value, the place name is judged to be the possible candidate place name.

Description

[0001] This application is filed in accordance with Article 42 of the Detailed Rules for the Implementation of the Patent Law, and is a divisional application of the Chinese patent application filed on July 29, 2005 with the application number 200510089537.0 and the title of the invention "Address Identification Device and Method". technical field [0002] The invention relates to an address recognition device and method. More specifically, it relates to an address recognition device and method for reading and recognizing handwritten character addresses in an arbitrary pitch region. Background technique [0003] Traditionally, there are two methods for recognizing handwritten addresses. [0004] The first traditional method is to first extract single-character regions (that is, regions containing only one character) from the input address image, and extract key characters from these single-character regions (in handwritten address recognition, key characters are able to repr...

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Application Information

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IPC IPC(8): G06K9/00G06K9/72
Inventor 黄开竹孙俊堀田悦伸直井聪
Owner FUJITSU LTD
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