Robust gamma correction based on chord distribution coding considering projector defocusing.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.453061
Abstract: In phase-measurement profilometry (PMP), the gamma effect can cause severe nonlinear distortion of the phase pattern (i.e., water ripples on the surface profile). Gamma correction is an effective method to eliminate the gamma effects of… read more here.
Keywords: gamma correction; projector defocusing; gamma; chord distribution ... See more keywords
Ternary Gray code-based phase unwrapping for 3D measurement using binary patterns with projector defocusing.
Sign Up to like & getrecommendations! Published in 2017 at "Applied optics"
DOI: 10.1364/ao.56.003660
Abstract: The three-dimensional measurement technique using binary pattern projection with projector defocusing has become increasingly important due to its high speed and high accuracy. To obtain even faster speed without sacrificing accuracy, a ternary Gray code-based… read more here.
Keywords: phase; code based; gray code; projector defocusing ... See more keywords