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Device and method of address identification

An extraction method and extraction device technology, applied in the direction of character and pattern recognition, instruments, computer parts, etc., can solve the problems of key character recognition errors, reduce system reliability, reduce system accuracy, etc., and improve efficiency and accuracy , reduce the amount of calculation, improve the effect of accuracy

Inactive Publication Date: 2007-01-31
FUJITSU LTD
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AI Technical Summary

Problems solved by technology

[0008] One problem with this traditional method is that if the correct key characters are not extracted, the recognition will be wrong, reducing the system accuracy
(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 accuracy
(2) Since the key character extraction unit 602 only recognizes a character segment as the key character with the smallest matching distance in the recognition candidate, it is inevitable that key character recognition errors will occur in some cases
[0009] Another problem with this traditional method is that in the overall place name recognition, if a certain place name in the front is wrongly recognized, the entire recognition structure behind will be wrong.
thereby reducing the reliability of the system

Method used

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  • Device and method of address identification
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  • Device and method of address identification

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Embodiment Construction

[0039] The address recognition device and method of the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, the same reference numerals designate the same or similar components.

[0040] image 3 is a block diagram of the address recognition device according to the first embodiment of the present invention. exist image 3 , the single-character region detection unit 1 divides the input address image into individual characters, and the image region of each single character is called a single-character region. The key character extraction unit 2 extracts key characters according to the result of the single character area detection unit 1 . The place name region extracting unit 3 then extracts the place name region according to the key characters extracted by the key character extracting unit 2 . The overall place name recognition unit 4 performs recursive and holistic recognition on the place name regions extracte...

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Abstract

The invention relates to an address identification device and method. It includes character dividing process, and key character distilling process, place-name entire identification process, and address determine process. The key character distilling process is used to distill key characters from character zone. It would take the following processes: distilling eigenvector, distilling eigenvector of the image corresponding to single character zone, matching process and finding possible key characters.

Description

technical field [0001] 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 area. Background technique [0002] Traditionally, there are two methods for recognizing handwritten addresses. [0003] 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 represent administrative regions. A single character, such as province, district, state, city, county, town, township, village, etc.), detects the geographical name area defined by two adjacent key characters. In order to recognize place names within a place name region, the method divides the place name region into independent characters...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/72
Inventor 黄开竹孙俊堀田悦伸直井联
Owner FUJITSU LTD