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An angle-sensitive CMOS imager for single-sensor 3D photography

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3 Author(s)
Wang, A. ; Cornell Univ., Ithaca, NY, USA ; Gill, P.R. ; Molnar, A.

Conventional cameras capture 2D photographs at a single plane of focus. Acquisition of a 3D photograph with multiple planes of focus typically requires scanning the focus of a single camera, or using arrays of cameras or lenses. This paper demonstrates a 150kpixel image sensor, which captures 3D scenes. The chip is manufactured in commodity 0.18μm CMOS and requires only a single convex lens at a fixed focal length in ambient light. As traditional image sensors only capture the intensity of the light at each location, they lose significant information about out-of-focus objects. Recovering the angular distribution of incident light permits recovery of the blurred, out-of-focus objects. This paper presents a CMOS imager that locally captures both the intensity and incident angle of the light striking it.

Published in:

Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2011 IEEE International

Date of Conference:

20-24 Feb. 2011