Modified light field architecture for reconfigurable multimode imaging

Roarke Horstmeyer; Ravindra Athale; Gary Euliss

doi:10.1117/12.828653

21 August 2009 Modified light field architecture for reconfigurable multimode imaging

Roarke Horstmeyer, Ravindra Athale, Gary Euliss

Proceedings Volume 7468, Adaptive Coded Aperture Imaging, Non-Imaging, and Unconventional Imaging Sensor Systems; 746804 (2009) https://doi.org/10.1117/12.828653
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

Abstract

Light field cameras can simultaneously capture the spatial location and angular direction of light rays emanating from a scene. By placing a variable bandpass filter in the aperture of a light field camera, we demonstrate the ability to multiplex the visible spectrum over this captured angular dimension. The result is a novel design for a single-snapshot multispectral imager, with digitally reconstructed images exhibiting reduced spatial resolution proportional to the number of captured spectral channels. This paper explores the effect of this spatial-spectral resolution tradeoff on camera design. It also examines the concept of utilizing a non-uniform pinhole array to achieve varying spectral and spatial capture over the extent of the sensor. Images are presented from several different light field - variable bandpass filter designs, and limitations and sources of error are discussed.

Citation Download Citation

Roarke Horstmeyer, Ravindra Athale, and Gary Euliss "Modified light field architecture for reconfigurable multimode imaging", Proc. SPIE 7468, Adaptive Coded Aperture Imaging, Non-Imaging, and Unconventional Imaging Sensor Systems, 746804 (21 August 2009); https://doi.org/10.1117/12.828653

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