3D documentation of footwear impressions and tyre tracks in snow with high resolution optical surface scanning
Publisher DOI
PubMed ID
17161568
Abstract
The three-dimensional documentation of footwear and tyre impressions in snow offers an opportunity to capture additional fine detail for the identification as present photographs. For this approach, up to now, different casting methods have been used. Casting of footwear impressions in snow has always been a difficult assignment. This work demonstrates that for the three-dimensional documentation of impressions in snow the non-destructive method of 3D optical surface scanning is suitable. The new method delivers more detailed results of higher accuracy than the conventional casting techniques. The results of this easy to use and mobile 3D optical surface scanner were very satisfactory in different meteorological and snow conditions. The method is also suitable for impressions in soil, sand or other materials. In addition to the side by side comparison, the automatic comparison of the 3D models and the computation of deviations and accuracy of the data simplify the examination and delivers objective and secure results. The results can be visualized efficiently. Data exchange between investigating authorities at a national or an international level can be achieved easily with electronic data carriers.
Date Issued
2006
Publication Type
Article
Language(s)
en
Author(s)
Albertini, Nicola | |
Naether, Silvio |
Additional Credits
Journal
Forensic science international
Publisher
Elsevier Scientific Publ. Ireland
ISSN
0379-0738
ISBN
17161568
Access(Rights)
metadata.only