期刊
NATURE COMMUNICATIONS
卷 3, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms1747
关键词
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资金
- Media Lab Consortium
- DARPA through the DARPA YFA
- Institute for Soldier Nanotechnologies
- U.S. Army Research Office [W911NF-07-D-0004]
- NSF IIS [1116718]
- Div Of Information & Intelligent Systems
- Direct For Computer & Info Scie & Enginr [1116718] Funding Source: National Science Foundation
The recovery of objects obscured by scattering is an important goal in imaging and has been approached by exploiting, for example, coherence properties, ballistic photons or penetrating wavelengths. Common methods use scattered light transmitted through an occluding material, although these fail if the occluder is opaque. Light is scattered not only by transmission through objects, but also by multiple reflection from diffuse surfaces in a scene. This reflected light contains information about the scene that becomes mixed by the diffuse reflections before reaching the image sensor. This mixing is difficult to decode using traditional cameras. Here we report the combination of a time-of-flight technique and computational reconstruction algorithms to untangle image information mixed by diffuse reflection. We demonstrate a three-dimensional range camera able to look around a corner using diffusely reflected light that achieves sub-millimetre depth precision and centimetre lateral precision over 40 cmx40 cmx40 cm of hidden space.
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