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A Novel Approach for Word Spotting Using Merge-Split Edit Distance

Identifieur interne : 000A27 ( Main/Exploration ); précédent : 000A26; suivant : 000A28

A Novel Approach for Word Spotting Using Merge-Split Edit Distance

Auteurs : Khurram Khurshid [France] ; Claudie Faure [France] ; Nicole Vincent [France]

Source :

RBID : ISTEX:8C1F3989D2466FF4A187343DA0F0E8326A4176F7

Abstract

Abstract: Edit distance matching has been used in literature for word spotting with characters taken as primitives. The recognition rate however, is limited by the segmentation inconsistencies of characters (broken or merged) caused by noisy images or distorted characters. In this paper, we have proposed a Merge-split edit distance which overcomes these segmentation problems by incorporating a multi-purpose merge cost function. The system is based on the extraction of words and characters in the text and then attributing each character with a set of features. Characters are matched by comparing their extracted feature sets using Dynamic Time Warping (DTW) while the words are matched by comparing the strings of characters using the proposed Merge-Split Edit distance algorithm. Evaluation of the method on 19th century historical document images exhibits extremely promising results.

Url:
DOI: 10.1007/978-3-642-03767-2_26


Affiliations:


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Le document en format XML

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<div type="abstract" xml:lang="en">Abstract: Edit distance matching has been used in literature for word spotting with characters taken as primitives. The recognition rate however, is limited by the segmentation inconsistencies of characters (broken or merged) caused by noisy images or distorted characters. In this paper, we have proposed a Merge-split edit distance which overcomes these segmentation problems by incorporating a multi-purpose merge cost function. The system is based on the extraction of words and characters in the text and then attributing each character with a set of features. Characters are matched by comparing their extracted feature sets using Dynamic Time Warping (DTW) while the words are matched by comparing the strings of characters using the proposed Merge-Split Edit distance algorithm. Evaluation of the method on 19th century historical document images exhibits extremely promising results.</div>
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