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Adaptive bitrate streaming (ABR) has become the de facto technique for video streaming over the Internet. Despite a flurry of techniques, achieving high quality ABR streaming over cellular networks remains a tremendous challenge. ABR streaming can be naturally modeled as a feedback control problem. There has been some initial work on using PID, a widely used feedback control technique, for ABR streaming...
Video transcoding is an efficient way to reduce the bitrate or convert the format of the original video stream to meet the requirements of different applications and various channel capacity. In this paper, we propose a fast multiview video transcoder (MVT) for bitrate reduction. Different from the H264 transcoder, the inter-view prediction information in the input video stream is utilized to reduce...
In order to eliminate the effect caused by noise, complex motion, and uncovered background in the process of change detection segmenting video objects, a new method for video objects extraction based on DFD between the frames and threshold segmentation is proposed. In this method, filtering and obtained two consecutive difference between the frames, and then amended the difference images by "assimilation...
Dynamic background modeling is an essential task for numerous visual surveillance applications such as incident detection and traffic management. Adaptive mixture models and nonparametric models are two popular methods for background modeling at present. However, it is usually too costly to perform for the both methods in real time, since they are both memory and computationally inefficient. To overcome...
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