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    • 1. 发明授权
    • Object image detecting method and system
    • 对象图像检测方法及系统
    • US06181805B2
    • 2001-01-30
    • US08288194
    • 1994-08-09
    • Hideki KoikeSatoshi ShimadaAkira TomonoKenichiro IshiiToshiki Iso
    • Hideki KoikeSatoshi ShimadaAkira TomonoKenichiro IshiiToshiki Iso
    • G06K900
    • G06K9/00288
    • In a dictionary image generating section, images of objects each belonging to any one of L categories are taken by a camera from predetermined M directions, a matching region of the object to be recognized is extracted from each of the object images, and dictionary images (N=L×M, n=1, 2, . . . , N) which are the representatives of combinations of direction and category are generated and stored together with the directions of the objects. When a test image is given, the degree of similarity r(n, X, Y) between an n-th dictionary image and the image region at the matching position (X, Y) in the test image is computed by a matching section. This matching process is repeated with the matching position (X, Y) and the number n of the dictionary image being varied, and the matching position (Xmax, Ymax) where the degree of similarity r(n) becomes the highest is detected.
    • 在字典图像生成部中,通过摄像机从预定的M个方向拍摄属于L个类别中的任一个的对象的图像,从每个对象图像和字典图像中提取要识别的对象的匹配区域 作为方向和类别组合的代表的N = LxM,n = 1,2,...,N)与对象的方向一起生成和存储。 当给出测试图像时,通过匹配部分计算测试图像中第n个词典图像和匹配位置(X,Y)处的图像区域之间的相似度r(n,X,Y)的程度。 重复该匹配处理,匹配位置(X,Y)和字典图像的数量n变化,并且检测相似度r(n)变得最高的匹配位置(Xmax,Ymax)。