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We propose a new method to extract foreground edges in a video streams taken from a stationary camera. Our background model is based on the fact that a background pixel's gradient components follow Gaussian mixture model(GMM). GMM is performed on the initial group of video frames to obtain the initial pixel gradient component distribution information at each pixel. Then each of the current Canny edge...
Recent years, the wide spread peer-assisted video-on-demand (VoD) systems have generated a great attention on how to optimize these applications. In particular, how to improve the system performance has become a popular issue. In this paper, we propose how to minimize server bandwidth to satisfy user demand in peer-assisted VoD systems. Furthermore, a linear programming method is presented to calculate...
This paper designed and implemented with Visual C++ a software video stream processing system to realize the real-time automatic vehicle speed detection and vehicle number counting. Based on geometric optics, we first present a simplified method to accurately map the coordinates in image domain into real-world domain. The second part is focused on the vehicle detection in digital image frames in video...
Data-driven overlay network (DONet)-like P2P system is especially suitable to support live stream applications, since its data structure can tolerate node dynamics quite well. However, optimal streaming demands the cooperation of individual nodes. If selfish nodes cheat about their buffer maps to reduce the forwarding burden, the overall streaming quality would be negatively affected. To defend against...
Voice interaction is a conversation mode between human and computer pursued by people. Based on the .NET platform, the techniques of data binding and text to speech are used to create voice homepages at the web sites of online shopping, and the technique of streaming media is used to transfer data, which make it possible to browse text and play voice simultaneously, and even enable a blind person...
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