Phase unwrapping with a rapid opensource minimum spanning tree algorithm (ROMEO)
Sign Up to like & getrecommendations! Published in 2020 at "Magnetic Resonance in Medicine"
DOI: 10.1002/mrm.28563
Abstract: To develop a rapid and accurate MRI phase‐unwrapping technique for challenging phase topographies encountered at high magnetic fields, around metal implants, or postoperative cavities, which is sufficiently fast to be applied to large‐group studies including… read more here.
Keywords: phase; rapid opensource; opensource minimum; minimum spanning ... See more keywords
Phase unwrapping methods for solving the ambiguity in current velocity estimation based on combined signal design
Sign Up to like & getrecommendations! Published in 2018 at "Flow Measurement and Instrumentation"
DOI: 10.1016/j.flowmeasinst.2017.12.001
Abstract: Abstract Acoustic Doppler Current Profiler (ADCP) due to the Doppler principle is a powerful instrument for the current velocity measurement, where the complex autocorrelation function is a commonly used method to estimate the Doppler frequency… read more here.
Keywords: phase unwrapping; phase; current velocity; velocity estimation ... See more keywords
Direction-determined phase unwrapping using geometric constraint of the structured light system: The establishment of minimum phase map
Sign Up to like & getrecommendations! Published in 2017 at "Optics Communications"
DOI: 10.1016/j.optcom.2017.05.046
Abstract: Abstract A recently proposed absolute phase unwrapping method using geometric constraints of the structured light system significantly improves the measurement speed and the robustness. The most important step of this method is to create a… read more here.
Keywords: phase; direction determined; phase map; phase unwrapping ... See more keywords
Adaptive mask generating algorithm based on the fuzzy set theory for the weighted least-squares phase unwrapping
Sign Up to like & getrecommendations! Published in 2021 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2021.106721
Abstract: Abstract In the digital speckle pattern interferometry (DSPI), accurate phase unwrapping is essential for quantitative phase measurement. In this paper, a novel adaptive mask generating algorithm based on the fuzzy set theory is proposed, which… read more here.
Keywords: adaptive mask; mask generating; phase unwrapping; generating algorithm ... See more keywords
Fast adaptive phase unwrapping algorithm based on improved bucket sorting
Sign Up to like & getrecommendations! Published in 2021 at "Optics and Lasers in Engineering"
DOI: 10.1016/j.optlaseng.2021.106745
Abstract: Abstract As a key step in active structured light reconstruction technology, the phase unwrapping algorithm has a direct impact on improving measurement accuracy and efficiency. A fast adaptive phase unwrapping algorithm based on improved bucket… read more here.
Keywords: unwrapping algorithm; adaptive phase; phase unwrapping; bucket ... See more keywords
A generalized multi-sensitivity temporal phase unwrapping method for absolute phase retrieval
Sign Up to like & getrecommendations! Published in 2017 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2017.05.026
Abstract: Abstract In this paper, a noble phase unwrapping method based on 2-sensitivity temporal phase unwrapping (TPU) is proposed. The algorithm considers the maximum ratio between two wavelengths in a measurement system and deals with wrapped… read more here.
Keywords: phase; generalized multi; unwrapping method; temporal phase ... See more keywords
Dual frequency composite pattern temporal phase unwrapping for 3D surface measurement
Sign Up to like & getrecommendations! Published in 2024 at "Scientific Reports"
DOI: 10.1038/s41598-024-76453-3
Abstract: Phase shifting profilometry (PSP) is widely used in three-dimensional (3D) optical metrology applications such as mechanical engineering, industrial monitoring, computer vision, and biomedicine because of its high measurement accuracy. In PSP, multi-frequency temporal phase unwrapping… read more here.
Keywords: phase unwrapping; dual frequency; temporal phase; measurement ... See more keywords
Using Phase Unwrapping Methods to Apply D-InSAR in Mining Areas
Sign Up to like & getrecommendations! Published in 2019 at "Canadian Journal of Remote Sensing"
DOI: 10.1080/07038992.2019.1583097
Abstract: Abstract Phase unwrapping is one of the key processing steps of D-InSAR (Differential Interferometric Synthetic Aperture Radar), and its accuracy has a great impact on the accuracy of interferometric deformation results. Therefore, it is necessary… read more here.
Keywords: mining areas; phase; coherence; phase unwrapping ... See more keywords
A Probabilistic Approach for Spatio-Temporal Phase Unwrapping in Multi-Frequency Phase-Shift Coding
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3174121
Abstract: Multi-frequency techniques with temporally encoded pattern sequences are used in phase-measuring methods of 3D optical metrology to suppress phase noise but lead to ambiguities that can only be resolved by phase unwrapping. However, classical phase… read more here.
Keywords: multi frequency; phase unwrapping; temporal phase; phase ... See more keywords
2-D Phase Unwrapping in DAS Based on Transport-of-Intensity-Equation: Principle, Algorithm and Field Test
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2024.3391275
Abstract: Seismic exploration demands high temporal-spatial resolution and cost-effective deployment. Distributed acoustic sensing (DAS), an emerging seismic exploring technology utilizing optic-fiber cables, supports intensified and real-time observation of geological activities. Phase unwrapping, a critical step in… read more here.
Keywords: field; phase unwrapping; based transport; principle algorithm ... See more keywords
C-HRNet: High Resolution Network Based on Contexts for Single-Frame Phase Unwrapping
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2024.3381544
Abstract: Phase unwrapping is an important research direction in fringe projection profilometry. Improving the accuracy of phase unwrapping from a single wrapped phase map has been a research focus. Existing the deep learning mathods for phase… read more here.
Keywords: phase unwrapping; map; phase; resolution network ... See more keywords