发明名称 |
Method and apparatus for using illumination from a display for computer vision based user interfaces and biometric authentication |
摘要 |
Disclosed is a computer-assisted method for analyzing the surroundings of a display device. At least two different patterns are displayed successively on a display device connected to a computer. A camera is also connected to the computer and is directed towards objects in front of the display device. Each time a pattern is displayed on the display device, at least one image of the surroundings is captured. The captured images are combined to create a difference image. The difference image is analyzed to interpret the objects in the surroundings. For example, calculations may be performed to segment the foreground from the background of the surroundings or to estimate the range (distance) of the objects from the display device. An apparatus for performing this computer-assisted method is also disclosed.
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申请公布号 |
US2002146169(A1) |
申请公布日期 |
2002.10.10 |
申请号 |
US20010790350 |
申请日期 |
2001.02.21 |
申请人 |
SUKTHANKAR RAHUL;CARUANA RICHARD;HASEGAWA KEIKO;MULLIN MATTHEW |
发明人 |
SUKTHANKAR RAHUL;CARUANA RICHARD;HASEGAWA KEIKO;MULLIN MATTHEW |
分类号 |
G06K9/20;G06K9/32;G06T5/00;G06T5/50;G06T7/00;(IPC1-7):G06K9/00 |
主分类号 |
G06K9/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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