发明名称 |
System and method for tracking a laser spot on a projected computer screen image |
摘要 |
A system and method for tracking a laser spot on a projected computer screen image computes a projective transformation matrix using the projected computer screen image electronically captured in a frame of image data. The projective transformation matrix is computed by fitting a polygon to a contour of each graphical object in the frame of image data and determining whether the polygon for each graphical object satisfies a set of predefined parameters to find a candidate polygon that corresponds to an outline of the projected computer screen image in the frame of image data.
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申请公布号 |
US7872637(B2) |
申请公布日期 |
2011.01.18 |
申请号 |
US20070740251 |
申请日期 |
2007.04.25 |
申请人 |
AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD. |
发明人 |
SEEMAN LISA;DOLFI DAVID |
分类号 |
G09G5/08;G06F3/038 |
主分类号 |
G09G5/08 |
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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