Integral place name recognition method and integral place name recognition device

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...

AI Technical Summary

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 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

[0010] 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

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