Results 91 to 100 of about 1,758 (166)

Interferometric phase-based dual-wavelength tomography [PDF]

open access: yes, 2001
We describe our phase-sensitive interferometry technique implemented as phase dispersion microscopy (PDM)/optical tomography (PDOT). The technique is based on measuring the phase difference between fundamental and second harmonic low coherence light in a
Dasari, Ramachandra R.   +3 more
core  

Single-molecule experiments in biological physics: methods and applications

open access: yes, 2006
I review single-molecule experiments (SME) in biological physics. Recent technological developments have provided the tools to design and build scientific instruments of high enough sensitivity and precision to manipulate and visualize individual ...
  +351 more
core   +1 more source

An Improved Closed-Form Multi-Baseline Phase Unwrapping Algorithm

open access: yesRemote 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   +5 more
doaj   +1 more source

Autofocus Correction of Azimuth Phase Error and Residual Range Cell Migration in Spotlight SAR Polar Format Imagery

open access: yes, 2012
Synthetic aperture radar (SAR) images are often blurred by phase perturbations induced by uncompensated sensor motion and /or unknown propagation effects caused by turbulent media.
Mao, Xinhua, Zhu, Daiyin, Zhu, Zhaoda
core   +1 more source

Quantum Optimization for Phase Unwrapping in SAR Interferometry

open access: yesIEEE 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   +3 more
doaj   +1 more source

Comparison of quantitative susceptibility mapping methods for iron-sensitive susceptibility imaging at 7T: An evaluation in healthy subjects and patients with Huntington's disease. [PDF]

open access: yesNeuroimage, 2023
Yao J   +12 more
europepmc   +1 more source

The prediction and measurement of sound radiated by structures [PDF]

open access: yes
Theories regarding the radiation of sound are reviewed and the implementation in strategies for explaining or measuring the sound produced by practical strucutres are discussed.
Brito, J. D., Lyon, R. H.
core   +1 more source

Multi-echo quantitative susceptibility mapping: how to combine echoes for accuracy and precision at 3 Tesla. [PDF]

open access: yesMagn Reson Med, 2022
Biondetti E   +6 more
europepmc   +1 more source

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