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Currently, HD videoconference becomes more and more prevalent. The bit rate of HD videos is large, so effective compressing scheme is very important. A static or gradually changed background in a global manner is an important characteristic for videoconference. H.264/AVC, which is the state-of-the-art codec, performs well, but it is not efficient enough for videoconference since it cannot fully exploit...
In this paper, we propose a new de-noising algorithm to handle the mixture of salt and pepper noise and Gaussian noise in videoconference. The algorithm detects the type of noise according to the human visual characteristics first, and then uses median filter to remove salt and pepper noise, and spatial-temporal adaptive filter to remove Gaussian noise. We analyze which parts of the algorithm can...
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