Abstract
This paper describes a three-screen television system using a block recovery rate (BRR)-based unequal error protection (UEP). The proposed in-home wireless network uses scalable video coding (SVC) and UEP with forward error correction (FEC) for maximizing the quality of service (QoS) over error-prone wireless networks. For efficient FEC packet assignment, this paper proposes a simple and efficient performance metric, a BRR which is defined as a recovery rate of temporal and quality layer from FEC assignment by analyzing the hierarchical prediction structure including the current packet loss. It also explains the SVC layer switching scheme according to network conditions such as packet loss rate (PLR) and available bandwidth (ABW). In the experiments conducted, gains in video quality with the proposed UEP scheme vary from 1 to 3 dB in Y-peak signal-to-noise ratio (PSNR) with corresponding subjective video quality improvements.
Highlights
Various multimedia services over wireless and wired networks using video streaming technologies have been emerging [1]
Before explainingthe theproposed proposed algorithm and layer-switching this paper algorithm and layer-switching method,method, this paper describes describes in detail the sourcetechnology coding technology and coding channeltechnologies coding technologies including in detail the source coding with SVCwith andSVC
forward error correction (FEC) algorithm for the performance was 81 and size ofreveals the group of pictures analysis by using version of the
Summary
Various multimedia services over wireless and wired networks using video streaming technologies have been emerging [1] Both continuous packet losses and rapid bandwidth changes in a time-varying wireless environment lead to serious video quality degradation. The scalable embedded bitstream can adapt to various network environments, the packet losses in unstable channel conditions can cause serious video quality degradation in the compressed bitstream due to the strong spatio-temporal dependencies between scalable video layers. Since the structure of scalable video compression has strong spatial and temporal dependencies, the packet losses in hierarchical coding structures with scalability can substantially deteriorate the received video quality. For source coding is to prepare multiple pre-encoded files (chunks) according to the performance capability of each targeted device: such as screen resolution, video files (chunks) according to the performance capability of each targeted device: such as screen computational power, and available bandwidth.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
