Keyword spotting in historical handwritten documents based on graph matching

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Authors

Stauffer, Michael
Fischer, Andreas
Riesen, Kaspar

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Publisher

Elsevier

Abstract

In the last decades historical handwritten documents have become increasingly available in digital form. Yet, the accessibility to these documents with respect to browsing and searching remained limited as full automatic transcription is often not possible or not sufficiently accurate. This paper proposes a novel reliable approach for template-based keyword spotting in historical handwritten documents. In particular, our framework makes use of different graph representations for segmented word images and a sophisticated matching procedure. Moreover, we extend our method to a spotting ensemble. In an exhaustive experimental evaluation on four widely used benchmark datasets we show that the proposed approach is able to keep up or even outperform several state-of-the-art methods for template- and learning-based keyword spotting.

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Keywords

Handwritten keyword spotting, Ensemble methods, Bipartite graph matching, Graph representation, Pattern recognition, State-of-the-art methods, Software engineering, Experimental evaluation, Automatic transcription

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Citation

Stauffer, M., Fischer, A. & Riesen, K. 2018, 'Keyword spotting in historical handwritten documents based on graph matching', Pattern Recognition, vol. 81, pp. 240-253.