caa a22 4500 445379561 CHVBK 20180317143013.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s10032-011-0152-x doi (NATIONALLICENCE)springer-10.1007/s10032-011-0152-x Towards historical document indexing: extraction of drop cap letters [Elektronische Daten] [Mickael Coustaty, Rudolf Pareti, Nicole Vincent, Jean-Marc Ogier] This paper deals with the difficult problem of indexing ancient graphic images. It tackles the particular case of indexing drop caps (also called Lettrines) and specifically, considers the problem of letter extraction from this complex graphic images. Based on an analysis of the features of the images to be indexed, an original strategy is proposed. This approach relies on filtering the relevant information, on the basis of Meyer decomposition. Then, in order to accommodate the variability of representation of the information, a Zipf's law modeling enables detection of the regions belonging to the letter, what allows it to be segmented. The overall process is evaluated using a relevant set of images, which shows the relevance of the approach. Springer-Verlag, 2011 Letter extraction nationallicence Historical documents nationallicence Coustaty Mickael Imedoc Team - L3i Laboratory, Avenue Michel Crepeau, 17042, La Rochelle, France aut Pareti Rudolf SIP Team, LIPADE Laboratory, 45, rue des Saints-Peres, 75270, Paris Cedex 06, France aut Vincent Nicole SIP Team, LIPADE Laboratory, 45, rue des Saints-Peres, 75270, Paris Cedex 06, France aut Ogier Jean-Marc Imedoc Team - L3i Laboratory, Avenue Michel Crepeau, 17042, La Rochelle, France aut International Journal on Document Analysis and Recognition (IJDAR) Springer-Verlag 14/3(2011-09-01), 243-254 1433-2833 14:3<243 2011 14 10032 https://doi.org/10.1007/s10032-011-0152-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10032-011-0152-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Coustaty Mickael Imedoc Team - L3i Laboratory, Avenue Michel Crepeau, 17042, La Rochelle, France aut NATIONALLICENCE 700 1- Pareti Rudolf SIP Team, LIPADE Laboratory, 45, rue des Saints-Peres, 75270, Paris Cedex 06, France aut NATIONALLICENCE 700 1- Vincent Nicole SIP Team, LIPADE Laboratory, 45, rue des Saints-Peres, 75270, Paris Cedex 06, France aut NATIONALLICENCE 700 1- Ogier Jean-Marc Imedoc Team - L3i Laboratory, Avenue Michel Crepeau, 17042, La Rochelle, France aut NATIONALLICENCE 773 0- International Journal on Document Analysis and Recognition (IJDAR) Springer-Verlag 14/3(2011-09-01), 243-254 1433-2833 14:3<243 2011 14 10032 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer