Multispectral imaging using a single bucket detector.

ABSTRACT: Existing multispectral imagers mostly use available array sensors to separately measure 2D data slices in a 3D spatial-spectral data cube. Thus they suffer from low photon efficiency, limited spectrum range and high cost. To address these issues, we propose to conduct multispectral imaging using a single bucket detector, to take full advantage of its high sensitivity, wide spectrum range, low cost, small size and light weight. Technically, utilizing the detector's fast response, a scene's 3D spatial-spectral information is multiplexed into a dense 1D measurement sequence and then demultiplexed computationally under the single pixel imaging scheme. A proof-of-concept setup is built to capture multispectral data of 64 pixels?×?64 pixels?×?10 wavelength bands ranging from 450?nm to 650?nm, with the acquisition time being 1?minute. The imaging scheme holds great potentials for various low light and airborne applications, and can be easily manufactured as production-volume portable multispectral imagers.

SUBMITTER: Bian L 

PROVIDER: S-EPMC4840436 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature