Results 111 to 120 of about 22,111 (245)

StaMPS Improvement for Deformation Analysis in Mountainous Regions: Implications for the Damavand Volcano and Mosha Fault in Alborz

Remote Sensing, 2015
Interferometric Synthetic Aperture Radar (InSAR) capability to detect slow deformation over terrain areas is limited by temporal decorrelation, geometric decorrelation and atmospheric artefacts.
Sanaz Vajedian, Mahdi Motagh, Faramarz Nilfouroushan   +2 more
doaj   +1 more source

Scale Descriptors through Phase Unwrapping [PDF]

, 2004
Shape matching typically relies on the candidate shapes being normalised for scale before the matching takes place. Many methods rely on finding the boundary or normalising the area of the shape. This is problematic when the object contains holes, or two objects have different underlying shapes.
Alex Hughes, Richard C. Wilson 0001
openaire   +1 more source

Enhanced 2D Spiral Cine DENSE MRI Using Low‐Rank Denoising for Improved Apparent Signal‐to‐Noise Ratio, Spatial Resolution, Efficiency, Accuracy, and Accessibility

Magnetic Resonance in Medicine, Volume 96, Issue 1, Page 403-419, July 2026.
ABSTRACT Purpose To develop a denoising technique for displacement encoding with stimulated echoes (DENSE) MRI that improves spatial resolution, efficiency, and accuracy, and enhances accessibility by implementing DENSE MRI at 0.55 T. Methods We developed a low‐rank denoising technique, which leverages multidimensional spiral cine DENSE MRI data for ...
Shu‐Fu Shih, Yuxiao Wu, Siyue Li, Zhengyang Ming, Arutyun Pogosyan, Fei Han, Holden H. Wu, J. Paul Finn, Kim‐Lien Nguyen, Xiaodong Zhong   +9 more
wiley   +1 more source

Phase Unwrapping Error Correction Based on Multiple Linear Regression Analysis. [PDF]

Sensors (Basel), 2023
Lv Z, Zhu K, He X, Zhang L, He J, Mu Z, Wang J, Zhang X, Hao R.   +8 more
europepmc   +1 more source

Phase‐Pole‐Free Images and Smooth Coil Sensitivity Maps by Regularized Nonlinear Inversion

Magnetic Resonance in Medicine, Volume 96, Issue 1, Page 134-145, July 2026.
ABSTRACT Purpose Phase singularities are a common problem in image reconstruction with auto‐calibrated sensitivities due to an inherent ambiguity of the estimation problem. The purpose of this work is to develop a method for detecting and correcting phase poles in non‐linear inverse (NLINV) reconstruction of MR images and coil sensitivity maps ...
Moritz Blumenthal, Martin Uecker
wiley   +1 more source

Phase Reconstruction and Unwrapping Method for InSAR Building Layover Areas in Complex Scenes Integrated with YOLOv11

Applied Sciences
Aimed at the problems of severe layover, interferometric phase aliasing and phase jumps caused by dense urban features, which lead to difficulties in phase unwrapping and insufficient automation and intelligence in building areas under complex scenes ...
Miao Xu, Guowang Jin, Ruibing Cui, Hao Ye, Jiajun Wang   +4 more
doaj   +1 more source

Six-pack holography for dynamic profiling of thick and extended objects by simultaneous three-wavelength phase unwrapping with doubled field of view. [PDF]

Sci Rep, 2023
Mirsky SK, Shaked NT.
europepmc   +1 more source

Effects and Correction of Patient Bulk Motion in Cranial DENSE MRI

Magnetic Resonance in Medicine, Volume 95, Issue 6, Page 3145-3160, June 2026.
ABSTRACT Purpose Applications of DENSE to measure cardiac driven brain tissue pulsations are highly sensitive to bulk patient motion due to the sub‐millimeter displacement encoding required, limiting its accuracy, reproducibility, and use in pediatric and aging populations.
Caroline A. Doctor, Leonardo A. Rivera‐Rivera, Laura B. Eisenmenger, Sterling C. Johnson, Kevin M. Johnson   +4 more
wiley   +1 more source

An Improved Synthesis Phase Unwrapping Method Based on Three-Frequency Heterodyne. [PDF]

Sensors (Basel), 2022
Liu J, Tian P, Li H, Wei H, Deng G, Zhou S, Ma Z, Wang W, He L.   +8 more
europepmc   +1 more source

Quantitative Susceptibility Mapping of the Cervical Spinal Cord at 3T and Application to Multiple Sclerosis

NMR in Biomedicine, Volume 39, Issue 6, June 2026.
We adapted to the spinal cord (SC) an MRI technique called quantitative susceptibility mapping (QSM) to produce the first high‐resolution axial QSM maps of the cervical SC. Applied to multiple sclerosis, it reveals differences between gray matter, white matter, and lesions, suggesting its potential for improved lesion characterization.
Benjamin Streichenberger, Mathieu Santin, Ludovic de Rochefort, Quentin Duché, Catherine Guillemot, Samira Mchinda, Stéphane Roche, Anne Kerbrat, Elise Bannier   +8 more
wiley   +1 more source