Open AccessMultispectral imaging using compact compound optics
Author(s) -
Rui Shogenji,
Yoshiro Kitamura,
Kenji Yamada,
Shigehiro Miyatake,
Jun Tanida
Publication year - 2004
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.001643
Subject(s) - multispectral image , optics , pixel , image processing , image sensor , computer science , channel (broadcasting) , spectral imaging , computer vision , digital image processing , artificial intelligence , image quality , filter (signal processing) , optical filter , physics , image (mathematics) , telecommunications
A very thin image capturing system called TOMBO (thin observation module by bound optics) is developed with compound-eye imaging and digital post-processing. As an application of TOMBO, a multispectral imaging system is proposed. With a specific arrangement of the optical system, spatial points can be observed by multiple photodetectors simultaneously. A filter array inserted in front of the image sensor enables observation of the spectrum of the target. The captured image is reconstructed by a modified pixel rearranging method extended to treat multi-channel spectral data, in which pixels in the captured image are geometrically rearranged onto a multi-channel virtual image plane. Experimental results of the image reconstruction show the effectiveness of the proposed system.