University of Twente Student Theses


Kiosk for 3D image acquisition of suspects

Baksi, Shreyo (2018) Kiosk for 3D image acquisition of suspects.

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Abstract:This paper presents a proof of concept for an affordable setup to generate 3D face scans. The system is build using the Realsense SR300 and a curved slider system upon which the camera is mounted. An open source software from the Intel Realsense SDK is used to generate scans from the hardware. The software is tuned to develop face scans in particular. The cloud compare software was used for viewing the 3D scans. The scans are generated by tracking upto 78 landmarks on the face of the subject being scanned making it robust against slow movements while being scanned. The scanning is done at 60fps. The textures of the face are stitched by implementing an iterative closest point function. The eventual scan made, provides for a 3D point cloud with a colored 2D texture masked on top of it. The depth resolution is ideal between 20 to 25 cm from the scanner. The system is very consistent in generating high matching scores. The resolution per pixel is obtained at 0.6mm/pixel. The scans were visibly distinguishable. The scans can cover for 180 degrees of poses and the scans are well illuminated making the scans fit for multi-pose face scanning algorithms and can also be used to train classifiers of the same. The above-mentioned points are further discussed in detail and the decisions have been advocated for in the scope of this paper. Eventually, The SR300 in this setup is capable of generating 3D scans for running 3D face recognition and Multipose face recognition algorithms.
Item Type:Essay (Bachelor)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:06 documentary information, 50 technical science in general, 54 computer science
Programme:Electrical Engineering BSc (56953)
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