AffiliationUniv Arizona, 3D Visualizat & Imaging Syst Lab, Coll Opt Sci
MetadataShow full item record
PublisherSPIE-INT SOC OPTICAL ENGINEERING
CitationMohan Xu and Hong Hua "Co-axial depth map sensor with an extended depth range", Proc. SPIE 11040, Optical Design Challenge 2019, 1104003 (27 February 2019); https://doi.org/10.1117/12.2523653
JournalOPTICAL DESIGN CHALLENGE 2019
Rights© 2019 SPIE
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at firstname.lastname@example.org.
AbstractThe conventional depth map sensors have limited depth range, or they need to sacrifice depth accuracy for a larger working range. To overcome such problems, in this work, we propose a co-axial depth map sensor with an extended depth range based on controlled aberrations. This depth map sensor implements depth measurement by projecting a near-infrared astigmatic pattern onto the test scene and measuring the contrast change of the reflected pattern image in the tangential and sagittal directions. By adding a tunable lens in the projection optics, this depth map sensor can achieve the extended depth measurement without the loss of high depth accuracy and high depth map resolution.
VersionFinal published version