A combined binary defocusing technique with multi-frequency phase error compensation in 3D shape measurement
Sign Up to like & getrecommendations! Published in 2020 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2019.105806
Abstract: Abstract Binary defocusing technology is widely used in three-dimensional (3D) structured light measurement technologies because of its high-speed measurement capability. Owing to the limitations regarding the type of binary fringe and the degree of defocus,… read more here.
Keywords: binary defocusing; frequency; error; measurement ... See more keywords
Flexible Error Diffusion Algorithm for Binary Defocusing Fringe Projection Profilometry
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2023.3236340
Abstract: The error diffusion algorithm shows great potential in binary defocusing fringe projection profilometry (FPP) for improving the intensity representation of binary patterns. However, the fixed kernel in the error diffusion algorithm makes the generated binary… read more here.
Keywords: error; error diffusion; binary patterns; diffusion algorithm ... See more keywords
Evaluating binary defocusing quantitatively in real-time for fringe projection profilometry
Sign Up to like & getrecommendations! Published in 2021 at "Optical Engineering"
DOI: 10.1117/1.oe.60.6.064110
Abstract: Abstract. In fringe projection profilometry (FPP), non-sinusoidal fringes due to the gamma effect of a projector will cause measurement errors. To solve this problem, a binary defocusing technique has been introduced in recent years, yet… read more here.
Keywords: binary defocusing; evaluation; real time; fringe projection ... See more keywords
Optimal frequency selection for accuracy improvement in binary defocusing fringe projection profilometry.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.464506
Abstract: The binary defocusing fringe projection profilometry (FPP) technique has demonstrated various advantages for high-speed and high-accuracy three-dimensional (3D) surface measurement. However, higher fringe frequency does not necessarily give better measurements in binary defocusing FPP. To… read more here.
Keywords: frequency; accuracy; fringe; defocusing fringe ... See more keywords
Defocusing parameter selection strategies based on PSF measurement for square-binary defocusing fringe projection profilometry.
Sign Up to like & getrecommendations! Published in 2018 at "Optics express"
DOI: 10.1364/oe.26.020351
Abstract: Three-dimensional (3D) shape measurement system with binary defocusing technique can perform high-speed and flexible measurements if binary fringe patterns are defocused by projector properly. However, the actual defocusing degree is difficult to set, and the… read more here.
Keywords: fringe; measurement; parameter selection; binary defocusing ... See more keywords