Pore Sub-Features Reproducibility in Direct Microscopic and Livescan ImagesTheir Reliability in Personal Identification

• NCJ Number: 231638
• Journal: Journal of Forensic Sciences Volume: 55 Issue: 4 Dated: July 2010 Pages: 970-975
• Author(s): Abhishek Gupta, M.Sc., M.Phil; Raul Sutton, Ph.D.
• Date Published: July 2010
• Length: 6 pages
• Publication Format: Article
• Publication Type: Report (Study/Research)
• Language: English
• Country: United States of America

Annotation

The reproducibility of pore surface area was studied using direct microscopic and 500 ppi Livescan images.

Abstract

Third-level features have been reported to have equal discriminatory power as second level details in establishing personal identification. Pore area, as an extended set third- level sub-feature, was studied by minimizing possible factors that could affect pore size. Direct microscopic pore area measurements indicated that the day on which the pore area was measured had a significant impact on the measured pore area. Pore area measurement was shown to be difficult to estimate in 500 ppi Livescan measurements owing to lack of resolution. It is not possible to reliably use pore area as an identifying feature in fingerprint examination. (Published Abstract)