发明名称 |
Security system and method for operating it |
摘要 |
The invention relates to a security system 100, having a camera 3 for taking pictures of objects. From chronologically successive pictures taken by the camera 3, a gray variance [variant term] of the pixels is derived, which is compared with a threshold value that is dependent on the gray value. This improves the recognition accuracy of the security system 100.
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申请公布号 |
US2007172143(A1) |
申请公布日期 |
2007.07.26 |
申请号 |
US20050587796 |
申请日期 |
2005.03.04 |
申请人 |
NIEM WOLFGANG;MUELLER-SCHNEIDERS STEFAN |
发明人 |
NIEM WOLFGANG;MUELLER-SCHNEIDERS STEFAN |
分类号 |
G06K9/38;G08B13/194;G08B13/196;G08B15/00 |
主分类号 |
G06K9/38 |
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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