Invention Grant
US07199838B2 Motion adaptive noise reduction apparatus and method for video signals
失效
运动自适应降噪装置及视频信号的方法
- Patent Title: Motion adaptive noise reduction apparatus and method for video signals
- Patent Title (中): 运动自适应降噪装置及视频信号的方法
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Application No.: US10871729Application Date: 2004-06-17
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Publication No.: US07199838B2Publication Date: 2007-04-03
- Inventor: Peng Lin , Yeong-Taeg Kim
- Applicant: Peng Lin , Yeong-Taeg Kim
- Applicant Address: KR Suwon
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon
- Agency: Myers Dawes Andras & Sherman, LLP
- Agent Kenneth L. Sherman, Esq.; Michael Zarrabian, Esq.
- Main IPC: H04N5/21
- IPC: H04N5/21

Abstract:
A video noise reduction system for a set of video frames that computes a first motion signal using a current frame and multiple consecutive previous frames, computes a second motion signal using the current frame and the processed preceding frame; computes the multi-frame temporal average of the current frame and multiple consecutive previous frames; computes the recursive average of the current frame and the processed preceding frame; generates a temporal filtered signal by soft switching between the multi-frame temporal average and the recursive average based on the first motion signal; applies a spatial filter to the current frame to generate a spatial filtered signal; and combines the temporal filtered signal and the spatial filtered signal based on the second motion signal to generate a final noise reduced video output signal.
Public/Granted literature
- US20050280739A1 Motion adaptive noise reduction apparatus and method for video signals Public/Granted day:2005-12-22
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