发明申请
US20100111440A1 METHOD AND APPARATUS FOR TRANSFORMING A NON-LINEAR LENS-DISTORTED IMAGE
有权
用于变换非线性透镜失真图像的方法和装置
- 专利标题: METHOD AND APPARATUS FOR TRANSFORMING A NON-LINEAR LENS-DISTORTED IMAGE
- 专利标题(中): 用于变换非线性透镜失真图像的方法和装置
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申请号: US12262363申请日: 2008-10-31
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公开(公告)号: US20100111440A1公开(公告)日: 2010-05-06
- 发明人: Sek M. Chai , Malcolm R. Dwyer , Ruei-Sung Lin , Daniel A. Linzmeier , Nikolaos Bellas
- 申请人: Sek M. Chai , Malcolm R. Dwyer , Ruei-Sung Lin , Daniel A. Linzmeier , Nikolaos Bellas
- 申请人地址: US IL Schaumburg
- 专利权人: MOTOROLA, INC.
- 当前专利权人: MOTOROLA, INC.
- 当前专利权人地址: US IL Schaumburg
- 主分类号: G06K9/54
- IPC分类号: G06K9/54
摘要:
A method and apparatus for image processing a lens-distorted image (e.g., a fisheye image) is provided. The method includes partitioning coordinate points in a selected output image into tiles. The output image is an undistorted rendition of a subset of the lens-distorted image. Coordinate points on a border of the tiles in the output image are selected. For each tile, coordinate points in the lens-distorted image corresponding to each selected coordinate point in the output image are calculated. In addition, for each tile, a bounding box on the lens-distorted image is selected. The bounding box includes the calculated coordinates in the lens-distorted image. The bounding boxes are expanded so that they encompass all coordinate points in the lens-distorted image that map to all coordinate points in their respective corresponding tiles. Output pixel values are generated for each tile from pixel values in their corresponding expanded bounding boxes.