发明授权
US07058237B2 Real-time wide-angle image correction system and method for computer image viewing
有权
实时广角图像校正系统及计算机图像查看方法
- 专利标题: Real-time wide-angle image correction system and method for computer image viewing
- 专利标题(中): 实时广角图像校正系统及计算机图像查看方法
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申请号: US10186915申请日: 2002-06-28
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公开(公告)号: US07058237B2公开(公告)日: 2006-06-06
- 发明人: Zicheng Liu , Michael Cohen
- 申请人: Zicheng Liu , Michael Cohen
- 申请人地址: US WA Redmond
- 专利权人: Microsoft Corporation
- 当前专利权人: Microsoft Corporation
- 当前专利权人地址: US WA Redmond
- 代理机构: Lyon & Harr, L.L.P.
- 代理商 Craig S. Fischer
- 主分类号: G06K9/36
- IPC分类号: G06K9/36 ; G09G5/00 ; H04N5/225
摘要:
The present invention includes a real-time wide-angle image correction system and a method for alleviating distortion and perception problems in images captured by wide-angle cameras. In general, the real-time wide-angle image correction method generates warp table from pixel coordinates of a wide-angle image and applies the warp table to the wide-angle image to create a corrected wide-angle image. The corrections are performed using a parametric class of warping functions that include Spatially Varying Uniform (SVU) scaling functions. The SVU scaling functions and scaling factors are used to perform vertical scaling and horizontal scaling on the wide-angle image pixel coordinates. A horizontal distortion correction is performed using the SVU scaling functions at and at least two different scaling factors. This processing generates a warp table that can be applied to the wide-angle image to yield the corrected wide-angle image.
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