Results 31 to 40 of about 68,558 (310)

Motion compensated projection reconstruction [PDF]

open access: yesMagnetic Resonance in Medicine, 1999
Over recent years, MRI has shown the capability for real-time applications. Although the acquisition times of fast MRI methods have been reduced significantly, patient motion during a magnetic resonance imaging (MRI) examination still causes artifacts in the image.
T, Schäffter, V, Rasche, I C, Carlsen
openaire   +2 more sources

Vibration Error Analysis and Motion Compensation of Video Synthetic Aperture Radar

open access: yesLeida xuebao, 2015
Video Synthetic Aperture Radar (ViSAR) system offers high imaging frame rate, and high resolution, and it is consequently used to investigate and locate near-moving targets. Compared with microwave SAR, the practical application of ViSAR is restricted by
Zhao Yu-lu   +4 more
doaj   +1 more source

Comprehensive Compensation Method for Motion Trajectory Error of End-Effector of Cable-Driven Parallel Mechanism

open access: yesMachines, 2023
The accuracy of the end-effector motion trajectory is a critical performance indicator for cable-driven parallel mechanisms. This study aims to address the problem of trajectory error during the end-effector motion in a cable-driven parallel mechanism ...
Yanglong Li   +4 more
doaj   +1 more source

Motion-compensated interframe coding [PDF]

open access: yesICASSP '85. IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005
This paper addresses various aspects of motion-compensated interframe coding. The image sequence data is investigated in an attempt to develop a more thorough analysis of the convergence requirements and the convergence rate. A new motion prediction technique is used which increases the validity of the assumptions made in proving convergence and which ...
Robert J. Moorhead II, Sarah A. Rajala
openaire   +1 more source

An evaluation of prospective motion correction (PMC) for high resolution quantitative MRI. [PDF]

open access: yes, 2015
Quantitative imaging aims to provide in vivo neuroimaging biomarkers with high research and diagnostic value that are sensitive to underlying tissue microstructure.
Weiskopf, N   +29 more
core   +1 more source

Research on the Motion Error Analysis and Compensation Strategy of the Delta Robot

open access: yesMathematics, 2019
The Delta robots are widely used in packaging, sorting, precision positioning, and other fields. Motion accuracy is an important indicator for evaluating robot performance.
Deyong Shang   +3 more
doaj   +1 more source

Coder-oriented matching criteria for motion estimation [PDF]

open access: yes, 1996
Classical matching criteria for motion estimation determine the match quality by operating in the spatial domain. The resulting displaced frame difference signal is, however, compressed by means of frequency transformations, and any optimal matching ...
Czerepinski, PJ, Bull, DR
core   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

KDM7A and KDM1A inhibition suppresses tumour promoting pathways in prostate cancer

open access: yesMolecular Oncology, EarlyView.
Treatment resistance is a major challenge for patients with advanced prostate cancer. This study examined an alternative approach to target the major prostate cancer‐promoting pathway by targeting epigenetic factors, whose levels are higher in tumours.
Jennie N Jeyapalan   +16 more
wiley   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

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