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Proceedings Paper

Adding polarimetric imaging to depth map using improved light field camera 2.0 structure
Author(s): Xuanzhe Zhang; Yi Yang; Shaojun Du; Yu Cao
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Paper Abstract

Polarization imaging plays an important role in various fields, especially for skylight navigation and target identification, whose imaging system is always required to be designed with high resolution, broad band, and single-lens structure. This paper describe such a imaging system based on light field 2.0 camera structure, which can calculate the polarization state and depth distance from reference plane for every objet point within a single shot. This structure, including a modified main lens, a multi-quadrants Polaroid, a honeycomb-liked micro lens array, and a high resolution CCD, is equal to an “eyes array”, with 3 or more polarization imaging “glasses” in front of each “eye”. Therefore, depth can be calculated by matching the relative offset of corresponding patch on neighboring “eyes”, while polarization state by its relative intensity difference, and their resolution will be approximately equal to each other. An application on navigation under clear sky shows that this method has a high accuracy and strong robustness.

Paper Details

Date Published: 26 June 2017
PDF: 10 pages
Proc. SPIE 10335, Digital Optical Technologies 2017, 103351Q (26 June 2017); doi: 10.1117/12.2270144
Show Author Affiliations
Xuanzhe Zhang, Anhui Institute of Optics and Fine Mechanics (China)
Univ. of Science and Technology of China (China)
National Univ. of Defense Technology (China)
Yi Yang, Anhui Institute of Optics and Fine Mechanics (China)
Univ. of Science and Technology of China (China)
Shaojun Du, National Univ. of Defense Technology (China)
Yu Cao, National Univ. of Defense Technology (China)

Published in SPIE Proceedings Vol. 10335:
Digital Optical Technologies 2017
Bernard C. Kress; Peter Schelkens, Editor(s)

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