SwePub
Sök i LIBRIS databas

  Extended search

id:"swepub:oai:DiVA.org:kth-20181"
 

Search: id:"swepub:oai:DiVA.org:kth-20181" > Fingerprint enhance...

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist
  • Almansa, A. (author)

Fingerprint enhancement by shape adaptation of scale-space operators with automatic scale selection

  • Article/chapterEnglish2000

Publisher, publication year, extent ...

  • IEEE Signal Processing Society,2000
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:kth-20181
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-20181URI
  • https://doi.org/10.1109/83.887971DOI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • QC 20100525
  • This work presents two mechanisms for processing fingerprint images; shape-adapted smoothing based on second moment descriptors and automatic scale selection based on normalized derivatives. The shape adaptation procedure adapts the smoothing operation to the local ridge structures, which allows interrupted ridges to be joined without destroying essential singularities such as branching points and enforces continuity of their directional fields. The Scale selection procedure estimates local ridge width and adapts the amount of smoothing to the local amount of noise. In addition, a ridgeness measure is defined, which reflects how well the local image structure agrees with a qualitative ridge model, and is used 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. 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. We propose that these general techniques should be of interest to developers of automatic fingerprint identification systems as well as in other applications of processing related types of imagery.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Lindeberg, Tony,1964-KTH,Beräkningsbiologi, CB(Swepub:kth)u1ht8xqq (author)
  • KTHBeräkningsbiologi, CB (creator_code:org_t)

Related titles

  • In:IEEE Transactions on Image Processing: IEEE Signal Processing Society9:12, s. 2027-20421057-71491941-0042

Internet link

Find in a library

To the university's database

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist

Find more in SwePub

By the author/editor
Almansa, A.
Lindeberg, Tony, ...
About the subject
NATURAL SCIENCES
NATURAL SCIENCES
and Computer and Inf ...
and Computer Science ...
NATURAL SCIENCES
NATURAL SCIENCES
and Computer and Inf ...
and Computer Vision ...
Articles in the publication
IEEE Transaction ...
By the university
Royal Institute of Technology

Search outside SwePub

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Close

Copy and save the link in order to return to this view