发明授权
- 专利标题： Automated focus adjustment using a varying light pattern
- 专利标题（中）： 使用变化的光图案进行自动对焦调整
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申请号： US13273139申请日： 2011-10-13
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公开(公告)号： US08896748B1公开(公告)日： 2014-11-25
- 发明人: Alexander T. Starns , Wesley Grass
- 申请人： Alexander T. Starns , Wesley Grass
- 申请人地址： US CA Mountain View
- 专利权人： Google Inc.
- 当前专利权人： Google Inc.
- 当前专利权人地址： US CA Mountain View
- 代理机构： Fenwick & West LLP
- 主分类号： H04N5/232
- IPC分类号： H04N5/232 ; G03B13/00 ; H04N1/40
摘要：
Systems and methods for automatically focusing an image capture device on a page of a document object. A predetermined light pattern is projected onto the page being imaged. The light pattern varies as a function of the separation of the page being imaged from the end page. The light pattern projected onto the page being imaged is sensed. Based on the sensed light pattern, the image capture device is focused on the page being imaged.
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