In this paper we present an innovative technique to semi-automatically index handwritten word images. The proposed method is based on HOG descriptors and exploits Dynamic Time Warping technique to compare feature vectors elaborated from single handwritten words. Our strategy is applied to a new challenging dataset extracted from Italian civil registries of the XIX century. Experimental results, compared with some previously developed word spotting strategies, confirmed that our method outperforms competitors.
Historical Handwritten Text Images Word Spotting through Sliding Window HOG Features / BOLELLI, FEDERICO; BORGHI, GUIDO; GRANA, Costantino. - ELETTRONICO. - 10484:(2017), pp. 729-738. (Intervento presentato al convegno International Conference on Image Analysis and Processing tenutosi a Catania, Italy nel Sep 11-15) [10.1007/978-3-319-68560-1_65].
Historical Handwritten Text Images Word Spotting through Sliding Window HOG Features
BORGHI, GUIDO;
2017
Abstract
In this paper we present an innovative technique to semi-automatically index handwritten word images. The proposed method is based on HOG descriptors and exploits Dynamic Time Warping technique to compare feature vectors elaborated from single handwritten words. Our strategy is applied to a new challenging dataset extracted from Italian civil registries of the XIX century. Experimental results, compared with some previously developed word spotting strategies, confirmed that our method outperforms competitors.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
