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Following with the advancements in digitization technology and broadband communication technology, realtime video streaming service has become an essential one for next generation Internet. When transmitting compressed video across the Internet, however, one of the main challenges is packet error/loss. High coding dependencies among video frames suffer from vulnerability to packet loss, which impacts...
This paper focuses on the rate-distortion optimization of low-delay 3D video communications based on the latest H.264/MVC video coding standard. The first part of the work proposes a new low-complexity model for distortion estimation suitable for low-delay stereoscopic video communication scenarios such as 3D videoconferencing. The distortion introduced by the loss of a given frame is investigated...
Video compression and streaming over lossy wireless networks is the current trend in telecommunication and encouraged by major carriers to increase their services portfolio. However, the technological challenges are still tackled to enable the delivery of high quality video. In our previous work, we developed a per stream distortion model that is based on the extended Gilbert model. We expanded our...
Distributed Video Coding (DVC) is a new paradigm for video compression, which is particularly attractive due to its flexibility to introduce very simple encoder structure. However, most DVC systems are unable to adapt to the bandwidth variations. In this paper we propose a scalable DVC scheme, which can adjust the bit-rate linearly depending on the available bandwidth, and thereby achieves optimal...
This paper presents a rate-distortion optimized framework for the transmission of stereoscopic H.264/MVC video on QoS-enabled networks. The distortion caused by the loss of each encoding unit is computed by means of the analysis-by-synthesis approach, which is then used within a rate-distortion optimization framework to select the best transmission strategy. Simulation results, evaluated using an...
Video streaming is a promising multimedia application and is gaining popularity over wireless/mobile communications. The quality of the video depends heavily on the type of content. The aim of the paper is threefold. First, video sequences are classified into groups representing different content types using cluster analysis based on the spatial (edges) and temporal (movement) feature extraction....
In this paper, by jointly considering power and delay constraints, we present an unequal error protection (UEP) approach for minimization of the receiver power consumption subject to a given quality of service, by exploiting data partition and selective hybrid automatic repeat request (HARQ). The proposed scheme assigns different error resilient tools to different priority data partitions with UEP...
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