Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Enhancement of Fingerprint Images by Shape-Adapted Scale-Space Operators
KTH, Skolan för datavetenskap och kommunikation (CSC), Beräkningsbiologi, CB.ORCID-id: 0000-0002-9081-2170
1996 (Engelska)Ingår i: Gaussian Scale-Space Theory. Part I: Proceedings of PhD School on Scale-Space Theory (Copenhagen, Denmark) May 1996 / [ed] J. Sporring, M. Nielsen, L. Florack, and P. Johansen, Springer Science+Business Media B.V., 1996, s. 21-30Kapitel i bok, del av antologi (Refereegranskat)
Abstract [en]

This work presents a novel technique for preprocessing fingerprint images. The method is based on the measurements of second moment descriptors and shape adaptation of scale-space operators with automatic scale selection (Lindeberg 1994). This procedure, which has been successfully used in the context of shape-from-texture and shape from disparity gradients, has several advantages when applied to fingerprint image enhancement, as observed by (Weickert 1995). For example, it is capable of joining interrupted ridges, and enforces continuity of their directional fields.

In this work, these abovementioned general ideas are applied and extended in the following ways: Two methods for estimating local ridge width are explored and tuned to the problem of fingerprint enhancement. A ridgeness measure is defined, which reflects how well the local image structure agrees with a qualitative ridge model. This information is used for guiding a scale-selection mechanism, and for spreading the results of shape adaptation into noisy areas.

The combined approach makes it possible to resolve fine scale structures in clear areas while reducing the risk of enhancing noise in blurred or fragmented areas. To a large extent, the scheme has the desirable property of joining interrupted lines without destroying essential singularities such as branching points. Thus, the result is a reliable and adaptively detailed estimate of the ridge orientation field and ridge width, as well as a smoothed grey-level version of the input image.

A detailed experimental evaluation is presented, including a comparison with other techniques. We propose that the techniques presented provide mechanisms of interest to developers of automatic fingerprint identification systems.

Ort, förlag, år, upplaga, sidor
Springer Science+Business Media B.V., 1996. s. 21-30
Serie
Computational Imaging and Vision, ISSN 1381-6446 ; 8
Nationell ämneskategori
Data- och informationsvetenskap Datorseende och robotik (autonoma system)
Identifikatorer
URN: urn:nbn:se:kth:diva-40142DOI: 10.1007/978-94-015-8802-7_2ISBN: 978-94-015-8802-7 (tryckt)OAI: oai:DiVA.org:kth-40142DiVA, id: diva2:453329
Anmärkning

QC 20111102

Tillgänglig från: 2011-11-02 Skapad: 2011-09-13 Senast uppdaterad: 2018-01-12Bibliografiskt granskad

Open Access i DiVA

fulltext(5822 kB)251 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 5822 kBChecksumma SHA-512
b182db7d49e195250557490e52597417025e450cf0495ceeff2822ba58e1b4d7b3e1867e57ab2a3cca32c6c9e8f7a577618d56b57d3237efcdd1333528a20d78
Typ fulltextMimetyp application/pdf

Övriga länkar

Förlagets fulltextAt authors' home pageThe final publication is available at www.springerlink.com

Personposter BETA

Lindeberg, Tony

Sök vidare i DiVA

Av författaren/redaktören
Lindeberg, Tony
Av organisationen
Beräkningsbiologi, CB
Data- och informationsvetenskapDatorseende och robotik (autonoma system)

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 251 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

doi
isbn
urn-nbn

Altmetricpoäng

doi
isbn
urn-nbn
Totalt: 606 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf