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Miniature 3D Microscope and Reflectometer for Space Exploration
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering. Univ Calif Santa Cruz, Elect & Comp Engn, Santa Cruz, CA 95064 USA..
NASA, Ames Res Ctr, Intelligent Robot Grp, Mountain View, CA USA..
Univ Calif Santa Cruz, Elect & Comp Engn, Santa Cruz, CA 95064 USA..
NASA, Ames Res Ctr, Intelligent Robot Grp, Mountain View, CA USA..
2019 (English)In: 2019 IEEE INTERNATIONAL CONFERENCE ON COMPUTATIONAL PHOTOGRAPHY (ICCP), IEEE , 2019Conference paper, Published paper (Refereed)
Abstract [en]

Characterization of objects in all dimensions at a microscopic level is important in numerous applications including surface analysis on planetary bodies. Existing microscopes fit for this task are large bench-top devices unsuitable for in-situ use, particularly in resource-constrained remote robotic exploration. Computational imaging techniques present a powerful means to overcome physical limitations in fielded sensors, but have seen especially little use in space applications. We present a miniature (150 gram) 3D microscopic imager without moving parts capable of providing 1-megapixel images at approximately 1 micron horizontal and 5 micron vertical resolution. This device combines light-field imaging and photometric stereo to provide both 3D reconstruction and reflectance characterization of individual soil grains. We thoroughly evaluate its performance by designing and nanofabricating a 3D-fiducial and further demonstrate its operation on a library of planetary soil simulants. This system opens vast opportunities for extension, demonstrating the potential of computational imaging to amplify sensing capabilities in space.

Place, publisher, year, edition, pages
IEEE , 2019.
Series
IEEE International Conference on Computational Photography, ISSN 2164-9774
Keywords [en]
3D-microscopy, multi-view stereo, gonioreflectometry, planetary exploration, computational photography
National Category
Computer Vision and Robotics (Autonomous Systems)
Identifiers
URN: urn:nbn:se:kth:diva-259473DOI: 10.1109/ICCPHOT.2019.8747331ISI: 000482699400007ISBN: 978-1-7281-3263-1 (print)OAI: oai:DiVA.org:kth-259473DiVA, id: diva2:1352045
Conference
IEEE International Conference on Computational Photography (ICCP), MAY 15-17, 2019, Univ Tokyo, Tokyo, JAPAN
Note

QC 20190917

Available from: 2019-09-17 Created: 2019-09-17 Last updated: 2019-09-17Bibliographically approved

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Pettersson, Gustav M.

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