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An arbitrary shape region of interest (ROI) coding is presented for scalable wavelet video codec in this paper. The framework of ROI-based wavelet coding is shown in the Figure 1. First, by segmenting and tracking of the original video, we can obtain the region of interest for each frame. The shapes information of the ROI is given in the way of two-value template (MASK). The ROI can be one or more...
Joint network-source video coding (JNSC) is targeted to achieve the optimum delivery of a video source to a number of destinations over network with capacity constraints. In this paper, a practical scalable multiple description coding is proposed for JNSC, based on Lagrangian rate allocation and scalable video coding. After the spatiotemporal wavelet transformation of input video sequence and the...
Combining the advantages of the centralized P2P structure and the data-driven structure with scalable video coding, we propose an adaptive P2P architecture for live video based on scalable wavelet video coding over Internet. The core operations are simple: every peer periodically exchanges data availability and bandwidth information with the central server, acting as the centralized index, which selects...
Scalable video coding is applied to meet the heterogeneity of networks, fluctuation of bandwidth, and diversity of end users. But if the base layer is damaged or missed, the scalable video coding will no longer be effective. To address this problem, a scalable multiple description of video is proposed based on the bit plane and rate allocation of scalable wavelet video coding in an error-prone transmission...
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