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    • 13. 发明授权
    • Combining narrow-baseline and wide-baseline stereo for three-dimensional modeling
    • 结合窄基线和宽基线立体声进行三维建模
    • US08463024B1
    • 2013-06-11
    • US13480875
    • 2012-05-25
    • David GallupAleksey GolovinskiyMichael Hongmai LinTilman Reinhardt
    • David GallupAleksey GolovinskiyMichael Hongmai LinTilman Reinhardt
    • G06K9/00G06T17/00
    • G06T7/596G06T17/00
    • In an embodiment, a method determines a three-dimensional model from a plurality of images taken of a geographic region by one or more cameras from different perspectives. The method includes determining, using a first stereo reconstruction technique: (i) a plurality of three-dimensional candidate surface points from the plurality of images, and (ii) which of the images in the plurality of images view each of the plurality of candidate surface points. The method also includes identifying an empty space between each of the plurality of candidate surface points and each camera model for the respective images determined to view the candidate surface point. The method further includes for each of a plurality of pairs of images from the plurality of images, determining, using a second stereo reconstruction technique, a surface estimate for the pair of images. The method also includes merging the surface estimates to identify a final surface.
    • 在一个实施例中,一种方法从通过来自不同视角的一个或多个照相机拍摄的地理区域的多个图像确定三维模型。 该方法包括使用第一立体重建技术来确定:(i)来自多个图像的多个三维候选表面点,以及(ii)多个图像中的哪个图像查看多个候选中的每一个 表面点。 该方法还包括识别多个候选表面点中的每一个之间的空白空间以及确定为查看候选表面点的各个图像的每个相机模型。 该方法还包括用于来自多个图像的多对图像中的每一个,使用第二立体重建技术确定该对图像的表面估计。 该方法还包括合并表面估计以识别最终表面。