Results 11 to 20 of about 72,590 (262)

Subsampling of 3D Pixel Blocks as a Video Compression Method for Analog Transmission

open access: yesElectronics, 2023
Hybrid digital–analog transmission of video signals enables flexibility in dividing video information into two parts to utilize the available bandwidth better. This study proposes a compression scheme to reduce the utilized bandwidth. The scheme uses different subsampling in three-dimensional (3D) blocks, where subsampling factors are selected to ...
Grzegorz Pastuszak
openaire   +3 more sources

Multifunctional photonic integrated circuit for diverse microwave signal generation, transmission and processing [PDF]

open access: yes, 2019
Microwave photonics (MWP) studies the interaction between microwave and optical waves for the generation, transmission and processing of microwave signals (i.e., three key domains), taking advantages of broad bandwidth and low loss offered by modern ...
Cao, Zizheng   +11 more
core   +2 more sources

SCLQ-JSCC:Joint source channel coding for heterogeneous network video transmission based on six corner lattice quantization

open access: yesDianzi Jishu Yingyong, 2018
In order to improve the heterogeneous network video transmission quality, this paper proposes a joint source channel coding for heterogeneous network video transmission based on six corner lattice quantization.
Wang Qiang   +3 more
doaj   +1 more source

Learning to image and compute with multimode optical fibers

open access: yesNanophotonics, 2022
Multimode fibers (MMF) were initially developed to transmit digital information encoded in the time domain. There were few attempts in the late 60s and 70s to transmit analog images through MMF.
Rahmani Babak   +5 more
doaj   +1 more source

Joint Power and Channel Resource Optimization in Soft Multi-View Video Delivery

open access: yesIEEE Access, 2019
Existing wireless multi-view video (MVV) transmission schemes use digital compression to achieve a better coding efficiency. However, the digital schemes suffer from the cliff effect, which refers to the phenomenon that the video quality is a step ...
Ticao Zhang, Shiwen Mao
doaj   +1 more source

The Wiener Filter-Based Adaptive Denoising for Pseudo Analogy Video Transmission

open access: yesIEEE Access, 2022
With the popularity of video conferences, video calls and other activities, video transmission has been widely used. To meet a huge number of subscribers’ requirements, the mobile video transmission scheme needs to overcome some disadvantages, such as resources limitation and noise interference.
Wanning He, Xin-Lin Huang, Pengfei Li
openaire   +2 more sources

Xstream-x264: Real-time H.264 streaming with cross-layer integration [PDF]

open access: yes, 2011
We present Xstream-x264: a real-time cross-layer video streaming technique implemented within a well known open-source H.264 video encoder tool x264.
Boreli, Roksana   +2 more
core   +2 more sources

Advances on CMOS image sensors [PDF]

open access: yes, 2016
This paper offers an introduction to the technological advances of image sensors designed using complementary metal–oxide–semiconductor (CMOS) processes along the last decades.
Gouveia, Luiz
core   +1 more source

Télémonitorage des grandes fonctions physiologiques chez les primates vigiles

open access: yesRevue de Primatologie, 2011
The common difficulties of the study of nonhuman primates are close to the constraints encountered in implementing the principles of human telemedicine.
Guy Germain
doaj   +1 more source

Value of MRI Outcomes for Preventive and Early‐Stage Trials in Spinocerebellar Ataxias 1 and 3

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To examine the value of MRI outcomes as endpoints for preventive and early‐stage trials of two polyglutamine spinocerebellar ataxias (SCAs). Methods A cohort of 100 participants (23 SCA1, 63 SCA3, median Scale for the Assessment and Rating of Ataxia (SARA) score = 5, 42% preataxic, and 14 gene‐negative controls) was scanned at 3T up ...
Thiago J. R. Rezende   +26 more
wiley   +1 more source

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