发明授权
- 专利标题： Position detecting method
- 专利标题（中）： 位置检测方法
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申请号： US11244558申请日： 2005-10-05
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公开(公告)号： US07983472B2公开(公告)日： 2011-07-19
- 发明人: Satoru Oishi
- 申请人： Satoru Oishi
- 申请人地址： JP
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JP
- 代理机构： Rossi, Kimms & McDowell LLP
- 优先权： JP2004-293026 20041005
- 主分类号： G06K9/00
- IPC分类号： G06K9/00
摘要：
A method detects a position of a mark based on an image signal of the mark. The method includes steps of obtaining a first position of the mark by performing a first process for the image signal, extracting plural feature values from the image signal based on the first position, and detecting the position of the mark by obtaining an offset value for the first position based on the plural feature values.
公开/授权文献
- US20060092420A1 Position detecting method 公开/授权日：2006-05-04
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