Invention Grant
- Patent Title: Color rolling detection method and detection device
- Patent Title (中): 彩色滚动检测方法和检测装置
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Application No.: US13168356Application Date: 2011-06-24
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Publication No.: US08577138B2Publication Date: 2013-11-05
- Inventor: Xiaobo Zhou , Keisuke Okamura , Koichiro Seo
- Applicant: Xiaobo Zhou , Keisuke Okamura , Koichiro Seo
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: CN201010215975 20100625
- Main IPC: G06K9/00
- IPC: G06K9/00

Abstract:
The present invention discloses a color rolling detection method and detection device for an input image, which can detect a phenomenon of color rolling in the image rapidly, efficiently and at a low cost. The detection method includes the steps of: an extracting step for extracting parameter values indicative of the color or brightness of the image in a detection time period T3; a preprocessing step for performing a preprocess to the extracted parameter values so as to obtain characteristic values of the image; an initial value setting step for obtaining a first initial value from the characteristic values in an initialization time period of the detection time period T3; an average value calculating step for calculating, with respect to each detection cycle T2 in the detection time period T3, an average value on the time axis of the characteristic values in the detection cycle T2 based on the obtained first initial value; and a detecting step for detecting whether there exists in the detection time period T3 such a detection cycle T2 that the characteristic values in the detection cycle T2 always maintain a deviation in a specific direction relative to the average value thereof, wherein if so, then occurrence of the color rolling is judged; otherwise, no occurrence of the color rolling is judged.
Public/Granted literature
- US20110317911A1 COLOR ROLLING DETECTION METHOD AND DETECTION DEVICE Public/Granted day:2011-12-29
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