An improved phase-coding method for absolute phase retrieval based on the path-following algorithm
Sign Up to like & getrecommendations! Published in 2019 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2019.05.024
Abstract: Abstract Although the traditional phase-coding method for absolute phase retrieval possesses strong robustness, the method leads to unwrapping artifacts as a mass of codewords required. To solve this problem, a novel improved method is proposed… read more here.
Keywords: phase coding; phase retrieval; coding method; phase ... See more keywords
Geometric dimension assisted absolute phase recovery in 3D shape measurement with digital fringe projection
Sign Up to like & getrecommendations! Published in 2021 at "Measurement Science and Technology"
DOI: 10.1088/1361-6501/abd64f
Abstract: A novel method of geometric dimension assisted absolute phase recovery in 3D shape measurement is presented. This method mainly includes two steps: (a) using the window Fourier filter-quality guided phase unwrapping algorithm to obtain the… read more here.
Keywords: phase; dimension assisted; geometric dimension; assisted absolute ... See more keywords
A Universal Self-Correcting Approach for Abnormal Jump Errors in Absolute Phase Retrieval
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2022.3204094
Abstract: Codeword-assisted temporal phase unwrapping (TPU) is extensively applied in absolute phase retrieval, in which the fringe order embedded in the temporal sequence identifies the interval of the wrapped phase. However, owing to inevitable image blurring… read more here.
Keywords: fringe; fringe order; absolute phase; phase ... See more keywords
Absolute Phase Unwrapping for Objects With Large Depth Range
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2023.3271764
Abstract: This article presents a method for unwrapping the phase using only the geometric constraints and photometric information of the structured light system, which can cope with objects in a large depth range without the need… read more here.
Keywords: large depth; depth range; objects large; absolute phase ... See more keywords
Absolute phase retrieval for a single-shot fringe projection profilometry based on deep learning
Sign Up to like & getrecommendations! Published in 2021 at "Optical Engineering"
DOI: 10.1117/1.oe.60.6.064104
Abstract: Abstract. A deep learning-based method is proposed to recover the absolute phase value from a single fringe pattern. We propose a deep neural network architecture that includes two subnetworks used for wrapping phase calculation and… read more here.
Keywords: fringe; phase retrieval; retrieval single; phase ... See more keywords
Stereo calibration with absolute phase target.
Sign Up to like & getrecommendations! Published in 2019 at "Optics express"
DOI: 10.1364/oe.27.022254
Abstract: Stereo cameras have been widely used for three-dimensional (3D) photogrammetry, and stereo calibration is a crucial process to estimate the intrinsic and extrinsic parameters. This paper proposes a stereo calibration method with absolute phase target… read more here.
Keywords: phase target; stereo calibration; target; phase ... See more keywords
Single-shot interferometric measurement of pulse-to-pulse stability of absolute phase using a time-stretch technique.
Sign Up to like & getrecommendations! Published in 2021 at "Optics express"
DOI: 10.1364/oe.422805
Abstract: Measurement of the absolute phase of ultrashort optical pulses in real-time is crucial for various applications, including frequency comb and high-field physics. Modern single-shot techniques, such as dispersive Fourier transform and time-lens, make it possible… read more here.
Keywords: phase; single shot; time; absolute phase ... See more keywords
Digital image correlation assisted absolute phase unwrapping.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.470704
Abstract: This paper presents an absolute phase unwrapping method for high-speed three-dimensional (3D) shape measurement. This method uses three phase-shifted patterns and one binary random pattern on a single-camera, single-projector structured light system. We calculate the… read more here.
Keywords: image correlation; phase unwrapping; digital image; absolute phase ... See more keywords