Shift-encoded optically multiplexed imaging
Name
Shah-2017-Shift-encoded optically multiplexed.pdf
Size
4.58 MB
Format
Adobe PDF
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Author(s)
Shah, Vinay N.
Rachlin, Yaron
Shepard III, R. Hamilton
Shih, Tina
Date Issued
March 2017
Journal
Optical Engineering
Publisher
SPIE
Citation
Shah, Vinay; Rachlin, Yaron; Shepard, R. Hamilton and Shih, Tina. “Shift-Encoded Optically Multiplexed Imaging.” Optical Engineering 56, no. 4 (March 2017): 041314 © 2017 Society of Photo-Optical Instrumentation Engineers
Version
Final published version
Abstract
In a multiplexed image, multiple fields-of-view (FoVs) are superimposed onto a common focal plane. The attendant gain in sensor FoV provides a new degree of freedom in the design of an imaging system, allowing for performance tradeoffs not available in traditional optical designs. We explore design choices relating to a shift-encoded optically multiplexed imaging system and discuss their performance implications. Unlike in a traditional imaging system, a single multiplexed image has a fundamental ambiguity regarding the location of objects in the image. We present a system that can shift each FoV independently to break this ambiguity and compare it to other potential disambiguation techniques. We then discuss the optical, mechanical, and encoding design choices of a shift-encoding midwave infrared imaging system that multiplexes six 15×15 deg FoVs onto a single one megapixel focal plane. Using this sensor, we demonstrate a computationally demultiplexed wide FoV video.
MIT Department
Lincoln Laboratory
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1117/1.OE.56.4.041314
