Are Commercial 3D Cameras and Camcorders Capable of Face Collections at 50 meters?

A report released recently by the National Institute of Justice's National Criminal Justice Reference Service describes the market survey and findings for 3D cameras and camcorders capable of face collections at 50 meters or greater, and an assessment of 2D camera background removal algorithms and techniques.

The report, titled Camera Technology Survey of 3D Offerings and 2D Occlusions, was prepared by Azimuth Incorporated. The abstract explains:

Capturing face images of uncooperative individuals at a distance of greater than 50 meters, in unconstrained environments is a very challenging task. Matching those collected faces in an automated fashion against poor legacy mug shot datasets is even more challenging. The current capabilities of face matching algorithms, combined with poorly collected probe images, and poor quality enrolled images, the resulting matching process performance is not very accurate.

A 3D camera or camcorder may mitigate or compensate face shadows, image background segmentation, and correcting the image to a full frontal face. Commercially available 3D camera and camcorder products have made significant improvements, but may never be an optimal solution to long range face collections due to unique imaging system requirements in biometric collection and matching.

The survey of commercial 3D cameras and camcorders returned very few products capable of face collections at 50 meters or greater distance. There were no 3D cameras identified that were capable of collecting face images at 50 meters or greater that provided the resolution and focal length required to provide for 90 pixels between pupil centers. Commercial 3D cameras and camcorders are not currently capable of filling the needs of law enforcement for long distance face collections and automated matching.

The report points to promising research being conducted at Stanford University in the area of computational photography. This research provides possible face segmentation by background and foreground removal. In essence, it offers the capability to provide individual face segmentation from the image, background and foreground, so long as there are no other faces on the same focal plane.

The 3D camcorder products this survey reviewed as potential face recognition image collection systems are the Sony DEV-3, JVC GS-TD1, and Panasonic HDC-10000. There were no 3D cameras or camcorders identified that were capable of collecting face images at 50 meters or greater that provided the resolution and focal length required to provide 90 pixels between pupil centers.

You can read the full report here.

Source: NIJ

 

 
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