6 October 2011 Optical techniques: using coarse and detailed scans for the preventive acquisition of fingerprints with chromatic white-light sensors
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Abstract
The preventive application of automated latent fingerprint acquisition devices can enhance the Homeland Defence, e.g. by improving the border security. Here, contact-less optical acquisition techniques for the capture of traces are subject to research; chromatic white light sensors allow for multi-mode operation using coarse or detailed scans. The presence of potential fingerprints could be detected using fast coarse scans. Those Regions-of- Interest can be acquired afterwards with high-resolution detailed scans to allow for a verification or identification of individuals. An acquisition and analysis of fingerprint traces on different objects that are imported or pass borders might be a great enhancement for security. Additionally, if suspicious objects require a further investigation, an initial securing of potential fingerprints could be very useful. In this paper we show current research results for the coarse detection of fingerprints to prepare the detailed acquisition from various surface materials that are relevant for preventive applications.
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Mario Hildebrandt, Mario Hildebrandt, Jana Dittmann, Jana Dittmann, Claus Vielhauer, Claus Vielhauer, Marcus Leich, Marcus Leich, } "Optical techniques: using coarse and detailed scans for the preventive acquisition of fingerprints with chromatic white-light sensors", Proc. SPIE 8187, Technologies for Optical Countermeasures VIII, 81870P (6 October 2011); doi: 10.1117/12.897701; https://doi.org/10.1117/12.897701
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