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Night-time surveillance system for forensic 3D mapping

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4 Author(s)
Chong, A.K. ; Fac. of Eng. & Surveying, Univ. of Southern Queensland, Toowoomba, QLD, Australia ; Ariff, M.F.M. ; Majid, Z. ; Setan, H.

This paper discusses a research in the development of a night-time surveillance imaging system for forensic mapping, and the exploitation of the system for crime suspect identification. The motivation of this research was to develop a precision stereo-imaging system using an off-the-shelf imaging sensor for 3D mapping of crime suspects. The prototype surveillance imaging system consisted of a high definition video (HDV) camcorder, a 3D stereo adapter, an Infrared (IR) filter and an IR illuminator. Using the concept of stereo-photogrammetry for craniofacial anthropometric measurement, body height and distinctive body feature of a suspect can be measured accurately in 3D. This study focused on the development and calibration of the prototype for surveillance purposes. A practical system evaluation was carried out at an ATM booth where stereo-video footage of a crime scene was captured and processed. The results of the research showed that the prototype was capable of obtaining spatial data with 27.0 mm accuracy in faint-light conditions and within 3.0 m from the imaging system.

Published in:

Image and Signal Processing (CISP), 2010 3rd International Congress on  (Volume:2 )

Date of Conference:

16-18 Oct. 2010

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