Results 71 to 80 of about 4,285,560 (201)

Phase Unwrapping Using Energy Minimization Methods for MRI Phase Image

, 2010
Phase Unwrapping (PU) is reconstruction of absolute phase data from its wrapped phase. The absolute phase cannot be extracted from the wrapped phase data directly.
Tati L. R. Mengko, Kusworo Adi, Andriyan B. Suksmono, H. Gunawan   +3 more
core   +1 more source

2-D phase unwrapping and phase aliasing

, 1993
The phase of complex signals is measured modulo-2Ï (wrapped phase); continuous-phase information is obtained by adding properly chosen multiples of 2Ï shift to the wrapped phase.
Spagnolini, U.
core   +1 more source

DMP-PUNet: A novel network for two-dimensional InSAR phase unwrapping under severe noise and complex fringes conditions

International Journal of Applied Earth Observations and Geoinformation
In the processing of Interferometric synthetic aperture radar (InSAR) data, two-dimensional (2-D) phase unwrapping (PU) is crucial for ensuring the quality of InSAR data inversion.
Yu Chen, Shuai Wang, Yandong Gao, Yanjian Sun, Jinqi Zhao, Kun Tan, Peijun Du   +6 more
doaj   +1 more source

NOVEL COMBINATION OF LCOS AND TEMPORAL PHASE UNWRAPPING FOR 3D SHAPE RECONSTRUCTION [PDF]

, 2007
"Recent developments on Spatial Light Modulator systems based on reflective liquid crystal microdisplays have allowed the technologies of Liquid Crystal over Semiconductors (LCoS).The highest potential of the Spatial Light Modulators is that they have ...
CHRISTHIAN ADONAI GONZALEZ VALDEZ
core  

Phase Unwrapping using ML methods

, 2023
Master's Dissertation in Computer EngineeringInterferometric Synthetic Aperture Radar (InSAR) is an important technology that has revolutionized the way we study the Earth's surface, allowing us to measure tiny changes in the ground surface with high ...
Couto, Diogo Gabriel da Silva
core   +1 more source

MCJ-UNet: A Dual/Multi-channel-joint Phase Unwrapping Network for Interferometric SAR

Leida xuebao
Interferometric Synthetic Aperture Radar (InSAR) enables the efficient retrieval of surface elevation and has extensive applications in terrain mapping.
Zegang DING, Tao SUN, Zhen WANG, Jian ZHAO, Yipeng SHI, Haolong CHEN, Zhizhou CHEN, Yan WANG, Tao ZENG   +8 more
doaj   +1 more source

FPUNet: A Fourier-Enhanced U-Net for Robust 2-D Phase Unwrapping of Noisy InSAR Interferograms

Remote Sensing
Two-dimensional phase unwrapping (PU) of interferometric synthetic aperture radar (InSAR) data remains difficult when steep deformation gradients and multi-source disturbances violate the Itoh condition.
Yuxiao He, Yuming Wu, Xing Gao
doaj   +1 more source

Extended Depth-range Dual-wavelength Interferometry Based on Iterative Two-step Temporal Phase-unwrapping

, 2017
Phase retrieval is one of the most challenging processes in many interferometry techniques. To promote the phase retrieval, Xu et. al [X. Xu, Y. Wang, Y. Xu, W. Jin. 2016] proposed a method based on dual-wavelength interferometry.
XiaoLei Li (14244900), Zhenkun Lei (4716990), Minmin Wang (2665252), Shuchun Si (13827943), YanJie Li (17500227), Canlin Zhou (10005160)   +5 more
core   +1 more source

Three-dimensional surface reconstruction based on a novel phase-unwrapping algorithm

, 2014
The phase unwrapping procedure is the most important step to achieve high accuracy, high resolution three-dimensional　(3-D) shape data of objects. Among numerous techniques of phase unwrapping, the region-based algorithms are　outstanding, which provide a
Liu CL(刘陈龙), Tong XX(佟新鑫), Zhu D(朱丹)   +2 more
core  

Hybrid 2D phase unwrapping methodology using spatial fuzzy clustering and neurofuzzy classification with application in sar images [PDF]

, 2001
Existing phase unwrapping (PU) methodology has arbitrary settings in selection of most optimal algorithm for a particular phase image. These arbitraries impose partially trial and error basis in finding for the best phase unwrapping algorithm and ...
Then, Patrick Hang Hui.
core