发明授权
- 专利标题: Scanning method and apparatus
- 专利标题(中): 扫描方法和装置
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申请号: US13994025申请日: 2011-01-04
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公开(公告)号: US08988740B2公开(公告)日: 2015-03-24
- 发明人: Yew Kien Loi , Ling Chuing Goh , Swee Heng Yeo , Boon Chen Lee , Gunawan Sutono
- 申请人: Yew Kien Loi , Ling Chuing Goh , Swee Heng Yeo , Boon Chen Lee , Gunawan Sutono
- 申请人地址: SG Singapore
- 专利权人: Piqx Imaging Pte Ltd
- 当前专利权人: Piqx Imaging Pte Ltd
- 当前专利权人地址: SG Singapore
- 代理机构: Hovey Williams LLP
- 国际申请: PCT/SG2011/000003 WO 20110104
- 国际公布: WO2012/093963 WO 20120712
- 主分类号: H04N1/04
- IPC分类号: H04N1/04 ; H04N1/028 ; H04N1/00 ; H04N101/00 ; G06K9/20
摘要:
A scanning method and apparatus. The method comprising the steps of: measuring an ambient video level using an area sensor under the control of a processor means; and calculating a gain and/or a exposure time and/or light source power for an actual flash video level using a stored reference flash video level and the measured ambient video level such that a summation of the actual flash video level and the ambient video level yields a desired video level in a scan image of the document using the calculated gain and/or exposure time and/or light source power.
公开/授权文献
- US20140293370A1 SCANNING METHOD AND APPARATUS 公开/授权日:2014-10-02
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