Results 11 to 20 of about 19,526,654 (284)

Subjective and Objective Quality Assessment of High Frame Rate Videos

open access: yesIEEE Access, 2021
High frame rate (HFR) videos are becoming increasingly common with the tremendous popularity of live, high-action streaming content such as sports.
Pavan C. Madhusudana   +5 more
doaj   +2 more sources

High-Frame-Rate Speckle-Tracking Echocardiography [PDF]

open access: yesIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2018
Conventional echocardiography is the leading modality for noninvasive cardiac imaging. It has been recently illustrated that high-frame-rate echocardiography using diverging waves could improve cardiac assessment. The spatial resolution and contrast associated with this method are commonly improved by coherent compounding of steered beams.
Philippe, Joos   +19 more
openaire   +5 more sources

High-Frame-Rate Doppler Ultrasound Using a Repeated Transmit Sequence

open access: yesApplied Sciences, 2018
The maximum detectable velocity of high-frame-rate color flow Doppler ultrasound is limited by the imaging frame rate when using coherent compounding techniques. Traditionally, high quality ultrasonic images are produced at a high frame rate via coherent
Anthony S. Podkowa   +2 more
doaj   +2 more sources

PAAQ: Paired Alternating AcQuisitions for virtual high frame rate multichannel cardiac fluorescence microscopy. [PDF]

open access: yesBiol Imaging, 2023
In vivo fluorescence microscopy is a powerful tool to image the beating heart in its early development stages. A high acquisition frame rate is necessary to study its fast contractions, but the limited fluorescence intensity requires sensitive cameras ...
Marelli F   +3 more
europepmc   +3 more sources

A new MAC scheme for very high-speed WLANs [PDF]

open access: yes, 2006
We consider the medium access control (MAC) layer for very high-speed Wireless LANs, which is designed to support rich multimedia applications such as highdefinition television.
Leith, D   +5 more
core   +7 more sources

Aggregation with fragment retransmission for very high-speed WLANs [PDF]

open access: yes, 2009
—In upcoming very high-speed wireless LANs (WLANs), the physical (PHY) layer rate may reach 600 Mbps. To achieve high efficiency at the medium access control (MAC) layer, we identify fundamental properties that must be satisfied by any CSMA-/CA-based MAC
Leith, D   +18 more
core   +8 more sources

VeryFastCCD: a high frame rate soft X-ray detector

open access: yesFrontiers in Physics, 2023
Direct X-ray detection in silicon has been transformative for scattering experiments in biology and materials science. While bump-bonded hybrid pixels have been attractive for hard X-ray detection, the challenge for single photon soft X-ray detection is ...
Azriel Goldschmidt   +5 more
doaj   +1 more source

High-frame rate and high-count rate hybrid pixel detector for 4D STEM applications

open access: yesFrontiers in Physics, 2023
This study presents the performance assessment of a novel hybrid pixel detector. The electron counting application-specific integrated circuit (ASIC), named KITE, was optimized for 4D STEM applications and bump-bonded to a silicon sensor that is suitable
P. Zambon   +11 more
doaj   +1 more source

Threshold-based frame error rate analysis of MIMO systems over quasistatic fading channels [PDF]

open access: yes, 2009
Proper selection of a signal-to-noise ratio threshold largely determines the tightness of an approximation to the frame error rate of a system over a quasistatic fading channel.
Chatzigeorgiou, I.   +2 more
core   +4 more sources

Coded Acquisition of High Frame Rate Video [PDF]

open access: yesIEEE Transactions on Image Processing, 2014
High frame video (HFV) is an important investigational tool in sciences, engineering and military. In ultra-high speed imaging, the obtainable temporal, spatial and spectral resolutions are limited by the sustainable throughput of in-camera mass memory, the lower bound of exposure time, and illumination conditions.
Reza Pournaghi, Xiaolin Wu 0001
openaire   +3 more sources

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