Modified light field architecture for reconfigurable multimode imaging


Conference Paper

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. © 2009 SPIE.

Full Text

Duke Authors

Cited Authors

  • Horstmeyer, R; Athale, R; Euliss, G

Published Date

  • December 1, 2009

Published In

Volume / Issue

  • 7468 /

International Standard Serial Number (ISSN)

  • 0277-786X

International Standard Book Number 13 (ISBN-13)

  • 9780819477583

Digital Object Identifier (DOI)

  • 10.1117/12.828653

Citation Source

  • Scopus