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Proceedings Paper

Depth perception with a rotationally symmetric coded camera
Author(s): Chuan-Chung Chang; Yung-Lin Chen; Chir-Weei Chang; Cheng-Chung Lee
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Paper Abstract

A novel design of a phase coded depth-sensing camera is presented. A rotational symmetric phase mask is designed to discriminate the point spread functions (PSF) from different scene distances. The depth information can then be computationally obtained from a single captured photograph through a phase coded lens. The PSF must be carefully optimized at off-axis angles in order to create a restored image which is sharp over the required field of view. In this paper, a phase coded depth camera with a focal length 10.82mm, sensor size 2mm and F-number 5 is designed. Simulation data is exchanged between Matlab and Zemax for co-optimization of optical coding and digital decoding process. The simulation result shows that coarse depth information is investigated for object distance from 513 mm to 1000 mm.

Paper Details

Date Published: 21 August 2009
PDF: 9 pages
Proc. SPIE 7429, Novel Optical Systems Design and Optimization XII, 742905 (21 August 2009); doi: 10.1117/12.824886
Show Author Affiliations
Chuan-Chung Chang, National Central Univ. (Taiwan)
Industrial Technology Research Institute (Taiwan)
Yung-Lin Chen, Industrial Technology Research Institute (Taiwan)
Chir-Weei Chang, Industrial Technology Research Institute (Taiwan)
Cheng-Chung Lee, National Central Univ. (Taiwan)

Published in SPIE Proceedings Vol. 7429:
Novel Optical Systems Design and Optimization XII
R. John Koshel; G. Groot Gregory, Editor(s)

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