Invention Grant
- Patent Title: Method and apparatus for detecting banding using moire pattern
- Patent Title (中): 用波纹图案检测条纹的方法和装置
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Application No.: US11631572Application Date: 2004-07-07
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Publication No.: US08085441B2Publication Date: 2011-12-27
- Inventor: Michael Plotkin , Haim Livne , Shlomo Harush
- Applicant: Michael Plotkin , Haim Livne , Shlomo Harush
- Applicant Address: US TX Houston
- Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee Address: US TX Houston
- International Application: PCT/IL2004/000609 WO 20040707
- International Announcement: WO2006/003644 WO 20060112
- Main IPC: G06T5/00
- IPC: G06T5/00 ; H04N1/407 ; H04N1/409
Abstract:
A method of determining presence of variations in interline spacing in a first image comprising a first plurality of parallel lines of pixels comprising: providing a second image comprising a second plurality of parallel lines; orienting the images so that the lines in the first and second pluralities are superimposed and angled with respect to each other to generate an interference image comprising a Moiré interference pattern; and using the Moiré interference pattern to determine presence of said variations.
Public/Granted literature
- US20080030790A1 Method And Apparatus For Detecting Banding Public/Granted day:2008-02-07
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