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. |
申请公布号 |
US8073236(B2) |
申请公布日期 |
2011.12.06 |
申请号 |
US20070946288 |
申请日期 |
2007.11.28 |
申请人 |
PENG LEI;WANG JIANG-PING;PREMIER IMAGE TECHNOLOGY (CHINA) LTD.;HON HAI PRECISION INDUSTRY CO., LTD. |
发明人 |
PENG LEI;WANG JIANG-PING |
分类号 |
G06K9/00;G01N21/00;H04N9/64 |
主分类号 |
G06K9/00 |
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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