Multifrequency time of flight in the context of transient renderings

Authors:
Ayush Bhandari;Achuta Kadambi;Refael Whyte;Lee Streeter;Christopher Barsi;Adrian Dorrington;Ramesh Raskar
Affiliations:
MIT Media Lab;MIT Media Lab;University of Waikato;University of Waikato;MIT Media Lab;University of Waikato;MIT Media Lab
Venue:
ACM SIGGRAPH 2013 Posters
Year:
2013

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Coded time of flight cameras: sparse deconvolution to address multipath interference and recover time profiles

ACM Transactions on Graphics (TOG)

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Abstract

The emergence of commercial time of flight (ToF) cameras for realtime depth images has motivated extensive study of exploitation of ToF information. In principle, a ToF camera is an active sensor that emits an amplitude modulated near-infrared (NIR) signal, which illuminates a given scene. The per-pixel phase difference of the modulation between reflected light and a reference signal determines the path length, and hence a depth map, of the scene.