Long-range concealed object detection through active covert illumination

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

Abstract

© 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 (

• Presentation Conference Type: Conference Paper (published)
• Conference Name: SPIE Security + Defence 2015
• 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
• DOI: https://doi.org/10.1117/12.2190194
• Keywords: covert object detection, infrared imaging, black silicon, machine vision, surveillance, 3D technology, surface reconstruction, photometric stereo
• Public URL: https://uwe-repository.worktribe.com/output/803643
• Publisher URL: http://dx.doi.org/10.1117/12.2190194
• Additional Information: Title of Conference or Conference Proceedings : SPIE Security + Defence 2015
• Contract Date: Feb 9, 2016