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Orientation scanning to improve lossless compression of fingerprint images
Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE).
Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE), Halmstad Embedded and Intelligent Systems Research (EIS).
Högskolan i Halmstad, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE), Halmstad Embedded and Intelligent Systems Research (EIS).ORCID-id: 0000-0002-4929-1262
2003 (engelsk)Inngår i: Audio-and video-based biometric person authentication: 4th International Conference, AVBPA 2003, Guildford, UK, June 9-11, 2003 : proceedings / [ed] Josef Kittler, Mark S. Nixon, Berlin, 2003, Vol. LNCS-2688, s. 343-350Konferansepaper, Publicerat paper (Annet vitenskapelig)
Abstract [en]

While standard compression methods available include complex source encoding schemes, the scanning of the image is often performed by a horizontal (row-by-row) or vertical scanning. In this work a new scanning method, called ridge scanning, for lossless compression of fingerprint images is presented. By using ridge scanning our goal is to increase the redundancy in data and thereby increase the compression rate. By using orientations, estimated from the linear symmetry property of local neighbourhoods in the fingerprint, a scanning algorithm which follows the ridges and valleys is developed. The properties of linear symmetry are also used for a segmentation of the fingerprint into two parts, one part which lacks orientation and one that has it. We demonstrate that ridge scanning increases the compression ratio for Lempel-Ziv coding as well as recursive Huffman coding with approximately 3% in average. Compared to JPEG-LS, using ridge scanning and recursive Huffman the gain is 10% in average.

sted, utgiver, år, opplag, sider
Berlin, 2003. Vol. LNCS-2688, s. 343-350
Serie
Lecture notes in computer science, ISSN 0302-9743 ; 2688
HSV kategori
Identifikatorer
URN: urn:nbn:se:hh:diva-14920ISI: 000184940200041Scopus ID: 2-s2.0-35248842730ISBN: 3-540-40302-7 OAI: oai:DiVA.org:hh-14920DiVA, id: diva2:408403
Konferanse
4th International Conference on Audio- and Video- Based Biometric Person Authentication (AVBPA'03), Guildford, UK, June 9-11, 2003
Tilgjengelig fra: 2011-04-04 Laget: 2011-04-04 Sist oppdatert: 2018-03-23bibliografisk kontrollert

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