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Long-range concealed object detection through active covert illumination

Williamson, David R.; Hales, Ian J.; Hansen, Mark F; Broadbent, Laurence; Smith, Melvyn

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David R. Williamson

Ian J. Hales

Mark Hansen
Professor of Machine Vision and Machine Learning

Laurence Broadbent

Profile Image

Melvyn Smith
Research Centre Director Vision Lab/Prof


D. A. Huckridge

R. Ebert

M. T. Gruneisen

M. Dusek

J. G. Rarity


© 2015 SPIE. When capturing a scene for surveillance, the addition of rich 3D data can dramatically improve the accuracy of object detection or face recognition. Traditional 3D techniques, such as geometric stereo, only provide a coarse grained reconstruction of the scene and are ill-suited to fine analysis. Photometric stereo is a well established technique providing dense, high-resolution, reconstructions, using active artificial illumination of an object from multiple directions to gather surface information. It is typically used indoors, at short range (


Williamson, D. R., Hales, I. J., Hansen, M. F., Broadbent, L., & Smith, M. (2015). Long-range concealed object detection through active covert illumination. Proceedings of SPIE, 9648,

Journal Article Type Conference Paper
Conference Name SPIE Security + Defence 2015
Conference Location Toulouse
Start Date Sep 21, 2015
End Date Sep 24, 2015
Publication Date Jan 1, 2015
Deposit Date Oct 2, 2015
Publicly Available Date Feb 9, 2016
Journal Proceedings of SPIE - The International Society for Optical Engineering
Print ISSN 0277-786X
Electronic ISSN 1996-756X
Publisher Society of Photo-optical Instrumentation Engineers
Peer Reviewed Peer Reviewed
Volume 9648
Series Title Proceedings of SPIE
Series Number 9648
Keywords covert object detection, infrared imaging, black silicon, machine vision, surveillance, 3D technology, surface reconstruction, photometric stereo
Public URL
Publisher URL
Additional Information Title of Conference or Conference Proceedings : SPIE Security + Defence 2015


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