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公开(公告)号:US06962417B1
公开(公告)日:2005-11-08
申请号:US10753830
申请日:2004-01-05
申请人: Tianbing Teng , Michael Callahan
发明人: Tianbing Teng , Michael Callahan
CPC分类号: G03B5/04 , G03B21/14 , G03B27/58 , G06T5/006 , G09G3/001 , G09G3/002 , G09G2320/02 , G09G2320/028 , G09G2320/0693 , G09G2320/08 , G09G2370/04 , H04N5/74 , H04N9/31 , H04N9/3185 , H04N9/3194
摘要: The invention relates to a keystone correction system and method. The system includes a projector for projecting an image on a projection surface and a platform to allow a user to vertically rotate the projector before horizontally rotating the projector. The projector corrects for keystone distortion responsive to the projector's vertical and horizontal position. The platform increases the keystone range of the projector. The keystone correction method includes moving a projector in a vertical direction and moving a projector in a horizontal direction after moving the projector in a vertical direction.
摘要翻译: 本发明涉及梯形失真校正系统和方法。 该系统包括用于在投影表面上投影图像的投影仪和平台,以允许用户在水平旋转投影仪之前垂直旋转投影仪。 投影机根据投影机的垂直和水平位置校正梯形失真。 该平台增加了投影机的梯形失真范围。 梯形失真校正方法包括沿垂直方向移动投影仪并沿垂直方向移动投影仪之后沿水平方向移动投影仪。