نتایج جستجو برای: packet video coding

تعداد نتایج: 329243  

Journal: :J. Visual Communication and Image Representation 2015
S. M. Koli R. G. Purandare S. P. Kshirsagar V. V. Gohokar

Quality of Service (QoS) optimization is an important design goal in wireless video transmission. The application (APP) layer 802.11e medium access control (MAC) layer, and physical (PHY) layer of the wireless protocol stack can be jointly designed for the exchange of information. This will optimize the performance of wireless network for real-time digital video transmission. This paper propose...

three dimensional- high efficiency video coding (3D-HEVC) is the expanded version of the latest video compression standard, namely high efficiency video coding (HEVC), which is used to compress 3D videos. 3D videos include texture video and depth map. Since the statistical characteristics of depth maps are different from those of texture videos, new tools have been added to the HEVC standard fo...

Journal: :Mobile Information Systems 2012
Xingjun Zhang Cuiping Jing Feilong Tang Scott Fowler Huali Cui Xiaoshe Dong

In this paper a novel unequal packet loss protection scheme RNC based on low-triangular global coding matrix with ladder-shaped partition is presented, which combines redundant and random network coding for robust H.264/SVC video transmission. Firstly, the error-correcting capabilities of redundant network coding makes our scheme resilient to loss. Secondly, the implementation of random network...

1998
Pascal Frossard

This work addresses the quality of service (QoS) analysis and optimization of TV-resolution MPEG-2 video streams to be transmitted over packet networks facing a given packet loss probability. The first contribution of this work resides in the analysis of the end-to-end QoS of MPEG-2 video streams transmitted over a lossy packet network. We address the problem of video quality prediction and con...

2007
Jiuhuai Lu Mainak Chatterjee Mayer D. Schwartz Mihir K. Ravel Wilfried M. Osberger

End-to-end quality of service for real-time video delivery over ATM networks depends on both video coding and network performance. Historical measures of QoS for data services have involved packet delivery parameters such as cell loss and delay, but these are not directly representative of a user's perception of the delivered video quality. To this end, this paper describes the use of a video q...

2000
Mihaela van der Schaar Hayder Radha C. Dufour

In this paper, we evaluate the packet loss resilience of the recently developed MPEG-4 Fine-Granular-Scalability (FGS) video coding method for Internet streaming applications. Since unrecoverable packet losses are very common over the Internet, the focus of this study is to determine how robust the MPEG-4 FGS coding tool is under unrecoverable IP packet-losses over a wide range of connection qu...

Journal: :EURASIP J. Adv. Sig. Proc. 2004
Yong Pei James W. Modestino

Digital video delivered over wired-to-wireless networks is expected to suffer quality degradation from both packet loss and bit errors in the payload. In this paper, the quality degradation due to packet loss and bit errors in the payload are quantitatively evaluated and their effects are assessed. We propose the use of a concatenated forward error correction (FEC) coding scheme employing Reed-...

2006
ZHAO Juan ZHU Guang-Xi

In this paper, a source coding technique exploiting packet path diversity is presented, which combines the individual benefits of MDC (multiple description coding) and LC (layer coding) for video transmission over wireless networks. Performance comparisons between LC and MDC are discussed at the beginning of this paper. Their advantages and disadvantages are concluded. An improved coding techni...

Journal: :Real-Time Imaging 1999
Olivier Verscheure Pascal Frossard Maber Hamdi

W e address the problem of video quality prediction and control for high-resolution video transmitted over lossy packet networks. In packet video, the bitstream ̄ows through several subsystems (coder, network, decoder); each of them can impair the information, either by data loss or by introducing some delay. However, each of these subsystems can be ®netuned in order to minimize these problems a...

2003
Fan Zhai Yiftach Eisenberg Carlos E. Luna Thrasyvoulos N. Pappas Randall Berry Aggelos K. Katsaggelos

This paper presents a novel framework for streaming video over a Differentiated Services (DifPjew) network that jointly considers video source coding. packet classification and error concealment within the scope o f costdistortion optimization. Our formulation incorporates the random network delay for each packet into the calculation of the probability of packet loss and manages the end-to-end ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید