Invention Grant
US07932955B2 Method and system for content adaptive analog video noise detection
有权
内容自适应模拟视频噪声检测方法与系统
- Patent Title: Method and system for content adaptive analog video noise detection
- Patent Title (中): 内容自适应模拟视频噪声检测方法与系统
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Application No.: US11314680Application Date: 2005-12-20
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Publication No.: US07932955B2Publication Date: 2011-04-26
- Inventor: Sheng Zhong , Darren Neuman
- Applicant: Sheng Zhong , Darren Neuman
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: McAndrews, Held & Malloy, Ltd.
- Main IPC: H04N5/14
- IPC: H04N5/14

Abstract:
A method and system for content adaptive analog video noise detection are provided. A motion metric (MM) value, an edge detection value, and a content detection value may be determined for pixels in a video image. The MM values of pixels with edge detection values smaller than an edge threshold value and with content detection values smaller than a content threshold value may be collected and accumulated for a portion of the noise level intervals when the MM values fall in this interval. The MM values collected and accumulated may be utilized to determine an average noise level for each of the intervals. A noise level indicator (NLI) for the current video image may be determined based on the noise level of the current image or on the noise levels of the current and at least one previous video images.
Public/Granted literature
- US20070139568A1 Method and system for content adaptive analog video noise detection Public/Granted day:2007-06-21
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