Journal ArticleDOI
Error resilient video coding techniques
TLDR
The majority of the article is devoted to the techniques developed for block-based hybrid coders using motion-compensated prediction and transform coding, and a separate section covers error resilience techniques for shape coding in MPEG-4.Abstract:
We review error resilience techniques for real-time video transport over unreliable networks. Topics covered include an introduction to today's protocol and network environments and their characteristics, encoder error resilience tools, decoder error concealment techniques, as well as techniques that require cooperation between encoder, decoder, and the network. We provide a review of general principles of these techniques as well as specific implementations adopted by the H.263 and MPEG-4 video coding standards. The majority of the article is devoted to the techniques developed for block-based hybrid coders using motion-compensated prediction and transform coding. A separate section covers error resilience techniques for shape coding in MPEG-4.read more
Citations
More filters
Journal ArticleDOI
H.264/AVC over IP
TL;DR: The paper describes the use of H.264 coded video over best-effort IP networks, using RTP as the real-time transport protocol.
Journal ArticleDOI
Video transport over ad hoc networks: multistream coding with multipath transport
TL;DR: This paper proposes to combine multistream coding with multipath transport, to show that, in addition to traditional error control techniques, path diversity provides an effective means to combat transmission error in ad hoc networks.
Journal ArticleDOI
Nonlinear approximation based image recovery using adaptive sparse reconstructions and iterated denoising-part I: theory
TL;DR: The robust estimation of missing regions in images and video using adaptive, sparse reconstructions using constructed estimators and how these estimators relate to the utilized transform and its sparsity over regions of interest is shown.
Journal ArticleDOI
Error resiliency schemes in H.264/AVC standard
TL;DR: This paper discusses various error resiliency schemes employed by H.264/AVC, and some experimental results are discussed to show the performance of error resilience schemes.
Journal ArticleDOI
Directional geographical routing for real-time video communications in wireless sensor networks
TL;DR: DGR improves the average video peak signal-to-noise ratio (PSNR) by 3dB, compared to a traditional geographic routing scheme, and has the following advantages: lower delay, substantially longer network lifetime, and a better received video quality.
References
More filters
RTP: A Transport Protocol for Real-Time Applications
TL;DR: RTP provides end-to-end network transport functions suitable for applications transmitting real-time data over multicast or unicast network services and is augmented by a control protocol (RTCP) to allow monitoring of the data delivery in a manner scalable to large multicast networks.
ReportDOI
SDP: Session Description Protocol
Mark Handley,Van Jacobson +1 more
TL;DR: This document defines the Session Description Protocol, SDP, intended for describing multimedia sessions for the purposes of session announcement, session invitation, and other forms of multimedia session initiation.
Journal ArticleDOI
Error control and concealment for video communication: a review
Yao Wang,Qin-Fan Zhu +1 more
TL;DR: In this paper, a review of error control and concealment in video communication is presented, which are described in three categories according to the roles that the encoder and decoder play in the underlying approaches.
Journal ArticleDOI
Design of multiple description scalar quantizers
TL;DR: The design of scalar quantizers for communication systems that use diversity to overcome channel impairments is considered and a design algorithm, a generalization of S.P. Lloyd's (1962) algorithm, is developed.
Journal ArticleDOI
H.263+: video coding at low bit rates
TL;DR: The 12 new negotiable modes of H.263+ are addressed, and experimental results for these modes are presented, based on the public-domain implementation of this standard.