Results 11 to 20 of about 57,654 (260)

Noise-Robust ISAR Translational Motion Compensation via HLPT-GSCFT

open access: yesRemote Sensing, 2022
Translational motion compensation is a prerequisite of inverse synthetic aperture radar (ISAR) imaging. Translational motion compensation for datasets with low signal-to-noise ratio (SNR) is important but challenging.
Fengkai Liu   +3 more
doaj   +1 more source

Media resources in video information systems [PDF]

open access: yesE3S Web of Conferences, 2023
The article describes methods for increasing the contrast of images in video information systems, the main compression of the video stream is provided by eliminating inter-frame redundancy using methods for compensating the movement of image fragments of
Beknazarova Saida   +2 more
doaj   +1 more source

Metabolic imaging of human kidney triglyceride content: reproducibility of proton magnetic resonance spectroscopy. [PDF]

open access: yesPLoS ONE, 2013
OBJECTIVE: To assess the feasibility of renal proton magnetic resonance spectroscopy for quantification of triglyceride content and to compare spectral quality and reproducibility without and with respiratory motion compensation in vivo.
Sebastiaan Hammer   +7 more
doaj   +1 more source

Motion Error Estimation and Compensation of Airborne Array Flexible SAR Based on Multi-Channel Interferometric Phase

open access: yesRemote Sensing, 2023
Airborne array synthetic aperture radar (SAR) has made a significant breakthrough in the three-dimensional resolution of traditional SAR. In the airborne array SAR 3D imaging technology, the baseline length is the main factor restricting the resolution ...
Ling Yang   +5 more
doaj   +1 more source

Motion compensation using joint-sub-band phase unwrapping for synthetic aperture sonar [PDF]

open access: yesJASA Express Letters, 2022
Displaced phase center antenna (DPCA) micro-navigation has been widely applied in the motion compensation of synthetic aperture sonars (SASs). Estimating the time delay is the most important step for DPCA-based motion compensation.
Shiping Chen   +6 more
doaj   +1 more source

Transforms for the motion compensation residual [PDF]

open access: yes2009 IEEE International Conference on Acoustics, Speech and Signal Processing, 2009
The Discrete-Cosine-Transform (DCT) is the most widely used transform in image and video compression. Its use in image compression is often justified by the notion that it is the statistically optimal transform for first-order Markov signals, which have been used to model images.
Kamisli, Fatih, Lim, Jae S.
openaire   +3 more sources

Motion compensation with a scanned ion beam: a technical feasibility study

open access: yesRadiation Oncology, 2008
Background Intrafractional motion results in local over- and under-dosage in particle therapy with a scanned beam. Scanned beam delivery offers the possibility to compensate target motion by tracking with the treatment beam.
Kraft Gerhard   +4 more
doaj   +1 more source

Motion compensation of motion vectors

open access: yesProceedings., International Conference on Image Processing, 2002
Motion compensation of image data has long been used for video compression. "Meta-motion" compensation, or motion compensation of motion vectors is presented as a new approach to data compression useful in very low bit rate (VLB) applications. Whereas present motion coding simply takes advantage of temporal redundancies among images, this new ...
Yeh, Joseph   +2 more
openaire   +1 more source

Advanced Respiratory Motion Compensation for Coronary MR Angiography

open access: yesSensors, 2013
Despite technical advances, respiratory motion remains a major impediment in a substantial amount of patients undergoing coronary magnetic resonance angiography (CMRA).
Markus Henningsson, Rene M. Botnar
doaj   +1 more source

Ocean Wave Active Compensation Analysis for Redundant Hybrid Boarding System: A Multi-Task Motion Planning Method

open access: yesJournal of Marine Science and Engineering, 2023
In this paper, to effectively solve the joint motion planning of a nine-DOF redundant hybrid boarding system in the process of ocean wave active compensation, we present a multi-task motion planning (MTMP) method for the redundant hybrid boarding system.
Yueyue Wang   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy