A 3D camera for improved facial recognition

Andrew Lewin; David A. Orchard; Andrew M. Scott; Nicholas A. Walton; Jim Austin

doi:10.1117/12.580847

16 December 2004 A 3D camera for improved facial recognition

Andrew Lewin, David A. Orchard, Andrew M. Scott, Nicholas A. Walton, Jim Austin

Proceedings Volume 5616, Optics and Photonics for Counterterrorism and Crime Fighting; (2004) https://doi.org/10.1117/12.580847
Event: European Symposium on Optics and Photonics for Defence and Security, 2004, London, United Kingdom

Abstract

We describe a camera capable of recording 3D images of objects. It does this by projecting thousands of spots onto an object and then measuring the range to each spot by determining the parallax from a single frame. A second frame can be captured to record a conventional image, which can then be projected onto the surface mesh to form a rendered skin. The camera is able of locating the images of the spots to a precision of better than one tenth of a pixel, and from this it can determine range to an accuracy of less than 1 mm at 1 meter. The data can be recorded as a set of two images, and is reconstructed by forming a 'wire mesh' of range points and morphing the 2 D image over this structure. The camera can be used to record the images of faces and reconstruct the shape of the face, which allows viewing of the face from various angles. This allows images to be more critically inspected for the purpose of identifying individuals. Multiple images can be stitched together to create full panoramic images of head sized objects that can be viewed from any direction. The system is being tested with a graph matching system capable of fast and accurate shape comparisons for facial recognition. It can also be used with "models" of heads and faces to provide a means of obtaining biometric data.

Citation Download Citation

Andrew Lewin, David A. Orchard, Andrew M. Scott, Nicholas A. Walton, and Jim Austin "A 3D camera for improved facial recognition", Proc. SPIE 5616, Optics and Photonics for Counterterrorism and Crime Fighting, (16 December 2004); https://doi.org/10.1117/12.580847

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available