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With the advances in the Internet and mobile networks, consumers now wish to enjoy their live and on-demand multimedia contents anytime, anywhere and across any device. Scalable Video Coding (SVC) provides a very attractive solution to achieve this goal. However, SVC streams themselves are not stream-able by a streaming server. The SVC streams must be stored in a proper file format to facilitate packet-based...
Video adaptation is critical for video encoding and streaming in mobile environment. Semantic video adaptation takes into account the degree of relevance of different part of the image and tries to adapt video content to meet wireless channel constraint. Making assumption that only changing region of the video is important to mobile user, we propose a real-time semantic level adaptation technique...
The H.264/AVC video coding standard encapsulates the most advanced video coding tools. The various techniques that lead to better coding efficiency of the coding standard also inevitably increase the complexity of the video encoder. Thus, real-time encoding of video streams with H.264 coding standard is a challenging task. If available computational resource does not allow the entire encoding process...
In this paper, a two-stage buffer control algorithm for minimizing the fluctuation in the quality of the video compressed by the motion JPEG2000 (MJP2) coder is proposed. In the first stage, coding bits are allocated to the video frames that are coded with the constraint of the smoothed distortion. In the second stage, the overall coding bits allocated in the first stage are adjusted to not exceed...
This paper proposes a concept to construct a Traffic-Localized and Resource-Efficient tree-based architecture to support the delivery of an SVC-encoded live video streaming onto a Public-Shared Network. A Public-Shared Network consists of a large number of bandwidth sharable devices, such as sharable APs in a FON network. The SVC-encoded video streaming is employed to provide the smooth access of...
This work presents an auto-adaptable video streaming Web-based system, enabling on-line simultaneously monitoring of multiple instruments of remote experiment. The system is capable of not only handling multiple concurrent stream processes, but also automatically tuning encoding parameters of the running video streaming processes once overload so that the whole system can always keep in a smooth and...
In this paper, we propose a combined SVC-MDC (scalable video coding & multiple description coding) video coding scheme using the multi-core parallel programming paradigm for P2P video streaming, which is denoted Co-SVC-MDC. To date, P2P video streaming applications are widely popular and emphasized, e.g., PPstream and PPlive, because of higher transmission speed and data availability. However,...
Video transmission over Internet can greatly benefit from adapting video content to diffserv network parameters, to better support the application requirements. In this paper, a novel content-aware packet priority ordering and marking scheme is presented for streaming H.264 coded video over differentiated services enabled networks. The scheme takes advantage of flexible macroblock ordering (FMO) coding...
In this paper, we addressed the problem of redundancy allocation for protecting packet loss for better quality of service (QoS) in real-time H.264 video streaming. A novel error-resilient approach is proposed for the transmission of pre-encoded H.264 video stream under bandwidth constrained networks. A novel frame importance model is derived for estimating relative importance index for different H...
Multiple description coding is a new coding technique engineered to solve the problems with transmitting video stream on the unreliable networks. In this paper, the author implements the multiple description coding based on the spatial sampling approach, in doing so the mismatching problems commonly found in using multiple description coding is thus avoided. Also realized are two distinctive multiple...
In this paper, a robust FGS video transmission scheme is proposed for streaming video over bandwidth-constrained packet loss channel, which aims to reducing both the overall distortion and quality fluctuation at the same time. We first use channel budget and packet loss property to determine the bits of enhancement layers that should be allocated per frame. Then unequal loss protection (ULP) using...
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