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    • 2. 发明申请
    • METHOD AND APPARATUS FOR IDENTIFYING COMBINATIONS OF MATCHING REGIONS IN IMAGES
    • 用于识别匹配区域在图像中的组合的方法和装置
    • US20110311148A1
    • 2011-12-22
    • US13141372
    • 2009-12-22
    • Elena Boykova Ranguelova
    • Elena Boykova Ranguelova
    • G06K9/62
    • G06K9/6211G06K9/4671
    • Matching combinations of regions are identified in a first and second image of a common scene. First and second sets of image regions are first identified in the first and second image on their own. Next a search is made for potentially matching first and second regions from the first and second set. First and second geometrical parameters such as moments are computed, which provide a first order approximation of the shapes of the first and second region respectively, in terms of the size and directions of major and minor axes of ellipses. These first and second geometrical parameters may be considered to define a first and second normalizing map, which map the first and second regions to isotropic regions, wherein the ellipses become circles. A search is made for closest third and fourth regions in the first and second image with matching distances to the first and second regions in spaces obtainable by mapping locations in the first and second image according to the first and second normalizing maps. The match is verified when such matching closest regions are found.
    • 区域的匹配组合在公共场景的第一和第二图像中被识别。 首先和第二组图像区域首先在第一和第二图像中被识别。 接下来,搜索来自第一和第二组的潜在匹配的第一和第二区域。 计算第一和第二几何参数,例如力矩,其分别根据椭圆的主轴和短轴的尺寸和方向分别提供第一和第二区域的形状的一阶近似。 这些第一和第二几何参数可以被认为是定义第一和第二归一化图,其将第一和第二区域映射到各向同性区域,其中椭圆变成圆。 针对第一和第二图像中的最接近的第三和第四区域进行搜索,其中匹配的距离与通过第一和第二归一化图中的第一和第二图像中的映射位置可获得的空间中的第一和第二区域相匹配。 当找到这样匹配的最近的区域时验证匹配。