Three-dimensional measurement system for crime scene documentation

Marcin Adamczyk; Elwira Hołowko; Krzysztof Lech; Jakub Michoński; Grzegorz Mączkowski; Paweł Bolewicki; Kamil Januszkiewicz; Robert Sitnik

doi:10.1117/12.2278489

5 October 2017 Three-dimensional measurement system for crime scene documentation

Marcin Adamczyk, Elwira Hołowko, Krzysztof Lech, Jakub Michoński, Grzegorz Mączkowski, Paweł Bolewicki, Kamil Januszkiewicz, Robert Sitnik

Author Affiliations +

Proceedings Volume 10441, Counterterrorism, Crime Fighting, Forensics, and Surveillance Technologies; 104410A (2017) https://doi.org/10.1117/12.2278489
Event: SPIE Security + Defence, 2017, Warsaw, Poland

Abstract

Three dimensional measurements (such as photogrammetry, Time of Flight, Structure from Motion or Structured Light techniques) are becoming a standard in the crime scene documentation process. The usage of 3D measurement techniques provide an opportunity to prepare more insightful investigation and helps to show every trace in the context of the entire crime scene. In this paper we would like to present a hierarchical, three-dimensional measurement system that is designed for crime scenes documentation process. Our system reflects the actual standards in crime scene documentation process – it is designed to perform measurement in two stages. First stage of documentation, the most general, is prepared with a scanner with relatively low spatial resolution but also big measuring volume – it is used for the whole scene documentation. Second stage is much more detailed: high resolution but smaller size of measuring volume for areas that required more detailed approach. The documentation process is supervised by a specialised application CrimeView3D, that is a software platform for measurements management (connecting with scanners and carrying out measurements, automatic or semi-automatic data registration in the real time) and data visualisation (3D visualisation of documented scenes). It also provides a series of useful tools for forensic technicians: virtual measuring tape, searching for sources of blood spatter, virtual walk on the crime scene and many others. In this paper we present our measuring system and the developed software. We also provide an outcome from research on metrological validation of scanners that was performed according to VDI/VDE standard. We present a CrimeView3D – a software-platform that was developed to manage the crime scene documentation process. We also present an outcome from measurement sessions that were conducted on real crime scenes with cooperation with Technicians from Central Forensic Laboratory of Police.

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Marcin Adamczyk, Elwira Hołowko, Krzysztof Lech, Jakub Michoński, Grzegorz Mączkowski, Paweł Bolewicki, Kamil Januszkiewicz, and Robert Sitnik "Three-dimensional measurement system for crime scene documentation", Proc. SPIE 10441, Counterterrorism, Crime Fighting, Forensics, and Surveillance Technologies, 104410A (5 October 2017); https://doi.org/10.1117/12.2278489

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