发明名称 |
Video processing methods and apparatus for gaze point tracking |
摘要 |
A gaze point tracking apparatus is provided having a comparator that receives a video signal corresponding to an eye image or a beacon image. The comparator produces a processed video signal that consists of two signal levels. A video processor detects and measures transitions between the two signal levels. The detected transitions are used to determine the location of a gaze point on a display.
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申请公布号 |
US6433759(B1) |
申请公布日期 |
2002.08.13 |
申请号 |
US20000559120 |
申请日期 |
2000.04.26 |
申请人 |
EYE CONTROL TECHNOLOGIES, INC. |
发明人 |
RICHARDSON JIM;ZIMMER BIRCH;HARDWICK MICHAEL A. |
分类号 |
G02B27/00;G02B27/01;G06F3/00;G06F3/01;G06F3/033;G06F3/042;(IPC1-7):G09G5/00 |
主分类号 |
G02B27/00 |
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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