发明授权
US08743235B2 Adaptive automatic exposure apparatus and method for digital images
有权
适用于数字图像的自动曝光装置和方法
- 专利标题： Adaptive automatic exposure apparatus and method for digital images
- 专利标题（中）： 适用于数字图像的自动曝光装置和方法
-
申请号： US13505389申请日： 2010-11-04
-
公开(公告)号： US08743235B2公开(公告)日： 2014-06-03
- 发明人: Nasser Kehtarnavaz , Mohammad T. Rahman
- 申请人： Nasser Kehtarnavaz , Mohammad T. Rahman
- 申请人地址： US TX Austin
- 专利权人： Board of Regents, The University of Texas System
- 当前专利权人： Board of Regents, The University of Texas System
- 当前专利权人地址： US TX Austin
- 代理机构： Chalker Flores, LLP
- 代理商 Daniel J. Chalker
- 国际申请： PCT/US2010/055481 WO 20101104
- 国际公布： WO2011/056994 WO 20110512
- 主分类号： H04N5/228
- IPC分类号： H04N5/228
摘要：
An apparatus and method for automatically adjusting an exposure for a digital imaging device by (a) receiving a current image frame using an exposure value (EV), (b) computing a current image spatial entropy (ISE) for the current image frame, and (c) whenever the current ISE is greater than a previous ISE, setting the previous ISE equal to the current ISE, increasing the EV, and repeating steps (a) and (b), and (d) whenever the current ISE is less than or equal to the previous ISE, decreasing the EV, receiving the current image frame using the EV, and displaying the current image frame.
公开/授权文献
信息查询
