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Evaluation of Purdue University’s 3D imaging prototype for footwear and tire impressions
Grassel, J., McKay, J., & DiEmma, G. (2022). Evaluation of Purdue University’s 3D imaging prototype for footwear and tire impressions. Forensic Technology Center of Excellence. https://forensiccoe.org/private/633714084548c
Supported by two National Institute of Justice (NIJ) awards (2016-DN-BX-0189 and 2019-R2-CX-0069), Dr. Song Zhang and his research team at Purdue University led the development of a fully automated 3D imaging system for footwear and tire tread impressions. The NIJ’s Forensic Technology Center of Excellence (FTCOE) evaluated this prototype 3D imaging system’s performance in a real-world setting with the assistance of footwear and tire examiners at three U.S. crime laboratories. The examiners were asked to provide their assessment on whether (1) the scanner was field ready, (2) the virtual impressions reproduced the footwear/tire evidence impressions accurately and precisely, (3) the 3D technology fits into examination processes and laboratory capabilities, and (4) they would purchase this technology in its current form.
