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EUROGRAPHICS
2010
Eurographics

Reinterpretable Imager: Towards Variable Post-Capture Space, Angle and Time Resolution in Photography

10 years 11 months ago
Reinterpretable Imager: Towards Variable Post-Capture Space, Angle and Time Resolution in Photography
We describe a novel multiplexing approach to achieve tradeoffs in space, angle and time resolution in photography. We explore the problem of mapping useful subsets of time-varying 4D lightfields in a single snapshot. Our design is based on using a dynamic mask in the aperture and a static mask close to the sensor. The key idea is to exploit scene-specific redundancy along spatial, angular and temporal dimensions and to provide a programmable or variable resolution tradeoff among these dimensions. This allows a user to reinterpret the single captured photo as either a high spatial resolution image, a refocusable image stack or a video for different parts of the scene in post-processing. A lightfield camera or a video camera forces a-priori choice in space-angle-time resolution. We demonstrate a single prototype which provides flexible post-capture abilities not possible using either a single-shot lightfield camera or a multi-frame video camera. We show several novel results includ...
Amit Agrawal, Ashok Veeraraghavan, Ramesh Raskar
Added 11 Mar 2010
Updated 15 Mar 2010
Type Conference
Year 2010
Where EUROGRAPHICS
Authors Amit Agrawal, Ashok Veeraraghavan, Ramesh Raskar
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