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Real-time image generation for compressive light field displays


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Title Real-time image generation for compressive light field displays
Title of Series The 9th International Symposium on Display Holography (ISDH 2012)
Part Number 6
Number of Parts 47
Author Hirsch, Matthew
Wetzstein, Gordon
Lanman, Douglas
Raskar, Ramesh
License CC Attribution - NoDerivatives 2.0 UK: England & Wales:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
DOI 10.5446/21058
Publisher River Valley TV
Release Date 2012
Language English

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Subject Area Computer Science
Abstract With the invention of integral imaging and parallax barriers in the beginning of the 20th century, glasses-free 3D displays have become feasible. Only today —more than a century later— glasses-free 3D displays are finally emerging in the consumer market. The technologies being employed in current-generation devices, however, are fundamentally the same as what was invented 100 years ago. With rapid advances in optical fabrication, digital processing power, and computational perception, a new generation of display technology is emerging: computational displays exploring the co-design of optical elements and computational processing while taking particular characteristics of the human visual system into account. In this paper, we discuss real-time implementation strategies for emerging computational light field displays. These are displays composed of multiple stacked layers of LCDs or other light-attenuating modulators that are driven at high display refresh rates. The involved image generation algorithms include tomographic image synthesis as well as non-negative light field factorizations. We demonstrate that, for the case of light field display, these algorithms map well to operations included in the standard graphics pipeline, facilitating efficient GPU-based implementations with real-time framerates.

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