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    • 2. 发明申请
    • TECHNIQUES FOR GENERATING ROBUST STEREO IMAGES
    • 用于产生稳健立体图像的技术
    • US20130329015A1
    • 2013-12-12
    • US13490991
    • 2012-06-07
    • Kari PulliAlejandro TroccoliChangyin Zhou
    • Kari PulliAlejandro TroccoliChangyin Zhou
    • G06K9/60H04N13/02
    • G06K9/60G06K2209/401G06T7/593G06T2207/10012G06T2207/10152H04N13/239H04N13/254H04N13/271H04N2013/0081
    • Techniques for generating robust depth maps from stereo images are described. A robust depth map is generated from a set of stereo images captured with and without flash illumination. The depth map is more robust than depth maps generated using conventional techniques because a pixel-matching algorithm is implemented that weights pixels in a matching window according to the ratio of light intensity captured using different flash illumination levels. The ratio map provides a rough estimate of depth relative to neighboring pixels that enables the flash/no-flash pixel-matching algorithm to devalue pixels that appear to be located at different depths than the central pixel in the matching window. In addition, the ratio map may be used to filter the generated depth map to generate a smooth estimate for the depth of objects within the stereo image.
    • 描述了从立体图像生成鲁棒深度图的技术。 从具有和不具有闪光照明的一组立体图像生成鲁棒的深度图。 深度图比使用常规技术生成的深度图更加鲁棒,因为实现了根据使用不同闪光照明级别捕获的光强度的比例来对匹配窗口中的像素进行加权的像素匹配算法。 比率图提供了相对于相邻像素的深度的粗略估计,其使得闪光/无闪光像素匹配算法能够使看起来位于与匹配窗口中的中心像素不同的深度处的像素贬值。 此外,比率图可以用于过滤生成的深度图,以生成立体图像内的对象的深度的平滑估计。