Depth perception with a rotationally symmetric coded camera

Chuan-Chung Chang; Yung-Lin Chen; Chir-Weei Chang; Cheng-Chung Lee

doi:10.1117/12.824886

21 August 2009 Depth perception with a rotationally symmetric coded camera

Chuan-Chung Chang, Yung-Lin Chen, Chir-Weei Chang, Cheng-Chung Lee

Proceedings Volume 7429, Novel Optical Systems Design and Optimization XII; 742905 (2009) https://doi.org/10.1117/12.824886
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

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.

Citation Download Citation

Chuan-Chung Chang, Yung-Lin Chen, Chir-Weei Chang, and Cheng-Chung Lee "Depth perception with a rotationally symmetric coded camera", Proc. SPIE 7429, Novel Optical Systems Design and Optimization XII, 742905 (21 August 2009); https://doi.org/10.1117/12.824886

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