NCJ Number
214850
Journal
Law Enforcement Technology Volume: 33 Issue: 6 Dated: June 2006 Pages: 110,112,115
Date Published
June 2006
Length
5 pages
Annotation
This article describes the use of PhotoModeler, a computer application capable of generating three-dimensional (3D) models of car crash scenes.
Abstract
It is crucial that crash scene investigators collect all the information necessary to reconstruct a car crash and understand what happened. Time, however, often works against crash scene investigators, particularly in heavily congested metropolitan areas. PhotoModeler, developed by Eos Systems in Vancouver, British Columbia, uses the geometry of light inherent in a camera to calculate measurements within a photographic image taken with any camera. The technology allows investigators to photograph the crash scene and then load the photos into PhotoModeler to calculate the spatial details needed for the investigation. A competing alternative method for large-scale forensic mapping software, called “total station,” is described as a laser-guided device that takes accurate long-distance measurements. The author illustrates how the two technologies--the total station and PhotoModeler--can be used together to enhance crash reconstruction analysis. In closing, investigators note that one advantage of PhotoModeler software is that if something was missed at the scene itself, it will most likely show up in the photographs, allowing for a complete crash analysis.