发明名称 |
SCANNING METHOD AND APPARATUS |
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. |
申请公布号 |
US2014293370(A1) |
申请公布日期 |
2014.10.02 |
申请号 |
US201113994025 |
申请日期 |
2011.01.04 |
申请人 |
Loi Yew Kien;Goh Ling Chuing;Yeo Swee Heng;Lee Boon Chen;Sutono Gunawan |
发明人 |
Loi Yew Kien;Goh Ling Chuing;Yeo Swee Heng;Lee Boon Chen;Sutono Gunawan |
分类号 |
H04N1/028 |
主分类号 |
H04N1/028 |
代理机构 |
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代理人 |
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主权项 |
1. A scanner device comprising:
an area sensor; a light source; and a processor means; wherein the scanner device is configured such that the area sensor, under the control of the processor means, measures an ambient video level; and the processor means calculates 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. |
地址 |
Singapore SG |