发明名称 |
SYSTEM AND METHOD FOR DETECTING BLEMISHES ON IMAGE SENSOR PACKAGE |
摘要 |
A system for detecting blemishes on an image sensor package includes an initialization module configured for initializing a suspected blemish standard mean value range and a blemish standard deviation value; an image capturing module configured for capturing an image produced by the image sensor package and acquiring a brightness value of each of pixels of the image; a calculation module configured for calculating a mean value and a standard deviation of differences of brightness values of a pixel and any other pixels surrounding the pixel; a comparison module configured for respectively comparing the mean value and the standard deviation with the suspected blemish standard mean value range and the blemish standard deviation value; and a marking module configured for marking the suspected blemish which is inside the suspected blemish standard mean value range and the blemish which is larger than the blemish standard deviation value.
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申请公布号 |
US2008317380(A1) |
申请公布日期 |
2008.12.25 |
申请号 |
US20070946288 |
申请日期 |
2007.11.28 |
申请人 |
PREMIER IMAGE TECHNOLOGY(CHINA) LTD.;HON HAI PRECISION INDUSTRY CO., LTD. |
发明人 |
PENG LEI;WANG JIANG-PING |
分类号 |
G06K9/36 |
主分类号 |
G06K9/36 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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