发明名称 METHOD AND APPARATUS FOR USING ILLUMINATION FROM A DISPLAY FOR COMPUTER VISION BASED USER INTERFACES AND BIOMETRIC AUTHENTICATION
摘要 <p>Disclosed is a computer-assisted method for analyzing the surroundings of a display device (11). At least two different patterns are displayed successively on a display device (11) connected to a computer (10). A camera (15) is also connected to the computer (10) and is directed towards objects in front of the display device (11). Each time a pattern is displayed on the display device (11), at least one image of the surroundings is captured. The captured images are combined to create a difference image.</p>
申请公布号 WO2002069246(A1) 申请公布日期 2002.09.06
申请号 US2002004929 申请日期 2002.02.20
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