Invention Grant
- Patent Title: Method and system for low-subband content discrimination
- Patent Title (中): 低频带内容辨别的方法和系统
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Application No.: US11350040Application Date: 2006-02-09
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Publication No.: US08422561B2Publication Date: 2013-04-16
- Inventor: Christian Joseph Eric Montminy
- Applicant: Christian Joseph Eric Montminy
- Applicant Address: CA Ottawa, Ontario
- Assignee: March Networks Corporation
- Current Assignee: March Networks Corporation
- Current Assignee Address: CA Ottawa, Ontario
- Agency: Borden Ladner Gervais LLP
- Agent Curtis B. Behmann
- Main IPC: H04N11/02
- IPC: H04N11/02 ; H04N7/14
Abstract:
A method and system are provided for discriminating areas of content from areas of noise in difference images of a digital video sequence. This allows the fewest bits possible to be used to encode areas of noise according to a video compression algorithm. The method comprises computing a difference frame from current image data and a reference frame; comparing at least one component of a candidate block within the difference frame to a threshold value to discriminate between content and noise; and encoding the candidate block if content is detected.
Public/Granted literature
- US20060177141A1 Method and system for low-subband content discrimination Public/Granted day:2006-08-10
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