Invention Grant
US09247245B2 Adaptive filter for video signal processing for decoder that selects rate of switching between 2D and 3D filters for separation of chroma and luma signals
有权
用于解码器的视频信号处理的自适应滤波器，其选择用于分离色度和亮度信号的2D和3D滤波器之间的切换速率
- Patent Title: Adaptive filter for video signal processing for decoder that selects rate of switching between 2D and 3D filters for separation of chroma and luma signals
- Patent Title (中): 用于解码器的视频信号处理的自适应滤波器，其选择用于分离色度和亮度信号的2D和3D滤波器之间的切换速率
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Application No.: US14268766Application Date: 2014-05-02
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Publication No.: US09247245B2Publication Date: 2016-01-26
- Inventor: Ravi Ananthapur Bacche
- Applicant: STMicroelectronics International N.V.
- Applicant Address: NL Amsterdam
- Assignee: STMicroelectronics International N.V.
- Current Assignee: STMicroelectronics International N.V.
- Current Assignee Address: NL Amsterdam
- Agency: Gardere Wynne Sewell LLP
- Priority: IN1319/DEL/2010 20100607
- Main IPC: H04N19/139
- IPC: H04N19/139 ; H04N9/78 ; H04N19/597 ; H04N19/117 ; H04N19/182
Abstract:
An adaptive temporal motion filter for a video decoder system operates in an infinite impulse response (IIR), a max or a bypass mode. The adaptive temporal motion filter includes an adaptive time constant control module and a filter gain module. A gain factor of the filter gain module is varied by the adaptive time constant control module for every pixel in a current composite video signal. The adaptive time constant control module selects a variable gain for the filter gain module based on the motion magnitude, motion polarity and chroma luma status of the pixel.
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