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    • 2. 发明申请
    • METHOD AND APPARATUS FOR TRANSFORMING A NON-LINEAR LENS-DISTORTED IMAGE
    • 用于变换非线性透镜失真图像的方法和装置
    • WO2010051147A3
    • 2010-07-22
    • PCT/US2009059971
    • 2009-10-08
    • GEN INSTRUMENT CORPCHAI SEK MDWYER MALCOLM RLIN RUEI-SUNGLINZMEIER DANIEL ABELLAS NIKOLAOS
    • CHAI SEK MDWYER MALCOLM RLIN RUEI-SUNGLINZMEIER DANIEL ABELLAS NIKOLAOS
    • G06T5/00G06T7/60H04N1/387
    • G06T5/006G06T3/0018H04N1/387
    • 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.
    • 提供了一种用于图像处理镜片失真图像(例如,鱼眼图像)的方法和装置。 该方法包括将所选输出图像中的坐标点分割成瓦片。 输出图像是透镜失真图像的子集的未失真的再现。 选择输出图像中瓦片边框的坐标点。 对于每个瓦片,计算与输出图像中的每个所选坐标点相对应的透镜失真图像中的坐标点。 另外,对于每个瓦片,选择透镜失真图像上的边界框。 边界框包括透镜失真图像中计算的坐标。 边界框被扩展,使得它们包含映射到其各自对应的瓦片中的所有坐标点的透镜失真图像中的所有坐标点。 从其对应的扩展边界框中的像素值为每个图块生成输出像素值。