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US07330218B2 Adaptive bidirectional filtering for video noise reduction 有权
用于视频降噪的自适应双向滤波

Adaptive bidirectional filtering for video noise reduction
Abstract:
A video noise reduction system for reducing video noise in a sequence of video frames. In the video noise reduction system, a temporal filter computes multiple temporal average values for the video frames in different temporal directions. A motion detector computes multiple motion signal values for the video frames in different temporal directions. Finally, a control unit selects one of the temporal average values based on the motion signal values as output.
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