Results 81 to 90 of about 4,285,560 (201)

Phase unwrapping via graph cuts

, 2007
. This paper presents a new algorithm for recovering the absolute phase from modulo-2π phase, the so-called phase unwrapping (PU) problem. PU arises as a key step in several imaging technologies, from which we emphasize interferometric SAR and SAS, where
Gonçalo Valadão, José M. Bioucas-dias
core  

Efficient phase-unwrapping algorithm by using phase blocks

, 2022
S.630-633Phase unwrapping is extensively used in optical measurements where phase-shifting technique is employed. For removing 2 pi-phase jumps resulted from phase computation, path-dependent and path-independent (cellular automata) algorithms for phase ...
Lu, T., Wang, B., Mischo, Horst, Zheng, Z.   +3 more
core   +1 more source

The granulocytic inducer C/EBPalpha inactivates the myeloid master regulator PU.1 [PDF]

, 2003
Verschiedene Transkriptionsfaktoren spielen eine Rolle in der Entwicklung myeloischer Zellen. PU.1, ein Transkriptionsfaktor aus der ETS-Familie, ist sowohl für die Entwicklung lymphatischer als auch für die Entwicklung myeloischer Zellen von Bedeutung ...
Reddy, Venkateshwar
core   +1 more source

Physics-Guided cGAN with Multi-Scale Attention for Robust 2D Phase Unwrapping in Low-Coherence Regions

Remote Sensing
Two-dimensional (2D) phase unwrapping (PU) in interferometric synthetic aperture radar (InSAR) remains a challenging ill-posed inverse problem, particularly in low-coherence regions where the Itoh condition is violated.
Zhijun Yang, Hengdi Hu, Jianxi Yang
doaj   +1 more source

Threshold automatic selection hybrid phase unwrapping algorithm for digital holographic microscopy

, 2015
Conventional quality-guided (QG) phase unwrapping algorithm is hard to be applied to digital holographic microscopy because of the long execution time.
Dan, Dan, Yu, Xianghua, Yang, Yanlong, Yan, Shaohui, Yao, Baoli, Min, Junwei, Lei, Ming, Zhou, Meiling   +7 more
core  

An Improved Closed-Form Multi-Baseline Phase Unwrapping Algorithm

Remote Sensing
Multi-baseline phase unwrapping (PU) is an extension of single-baseline PU. Its accuracy directly affects the reliability of results in engineering tasks, such as InSAR topographic mapping and geological hazard monitoring, in complex scenarios. Meanwhile,
Zhen Wang, Xuemao Li, Chao Xing, Zhibin Wang, Peng Liu, Zhenfang Li   +5 more
doaj   +1 more source

2D phase unwrapping system

, 2009
Phase unwrapping is an important but yet complex step in the phase extraction process. Phase extraction is used in many medical, military and industrial applications that involve digital image processing.
Lee, Benjamin Juyi.
core  

Quantum Optimization for Phase Unwrapping in SAR Interferometry

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Phase unwrapping is the reconstruction of a phase given its values mod 2$\pi$. Phase unwrapping is an important image processing technique used in synthetic aperture radar interferometry, in the context of height estimation and ground deformation.
Kay Glatting, Jan Meyer, Sigurd Huber, Gerhard Krieger   +3 more
doaj   +1 more source

Multichannel Phase Unwrapping With Graph Cuts

, 2009
Markovian approaches have proven to be effective for solving the multichannel phase-unwrapping (PU) problem, particularly when dealing with noisy data and big discontinuities.
FERRAIOLI, GIAMPAOLO, G. Ferraioli, V. Pascazio, Tupin, F., A. Shabou, PASCAZIO, Vito, Shabou, A., F. Tupin   +7 more
core   +1 more source

Phase unwrapping: A new maxflow/min-cut based approach

, 2005
The paper presents a new max-flow/min-cut approach for recovering the absolute phase from modulo-2π phase, the so-called phase unwrapping (PU) problem.
José M. Bioucas-dias, Torre Norte
core