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    • 1. 发明授权
    • Moving body recognition apparatus
    • 移动身体识别装置
    • US5684886A
    • 1997-11-04
    • US428731
    • 1995-04-25
    • Hiroshi KamadaTakashi KubotaMorito Shiohara
    • Hiroshi KamadaTakashi KubotaMorito Shiohara
    • H04N5/232G06K9/00G06K9/64G06T7/20
    • G06K9/6211G06K9/00335G06T7/2033
    • A moving body recognition apparatus which recognizes a shape and movement of an object moving in relation to an image input unit by extracting feature points, e.g. a peak of the object and a boundary of color, each in said images captured at a plurality of instants in time for observation by the image input unit. The moving body recognition apparatus comprises an image input unit for capturing images of an object as a moving body having a rotation, a feature point extraction unit for extracting feature points from the images inputted by the image input unit, a feature point storage unit for storing known position data of the extracted feature points, and a shape/movement recognition unit for calculating the actual positions and movements of the feature points of the object in the images by using the known position data of the extracted feature points outputted from the feature point storage unit.
    • 一种移动体识别装置,其通过提取特征点来识别相对于图像输入单元移动的物体的形状和运动,例如, 对象的峰值和颜色的边界,分别在多个时刻捕获的所述图像中,以供图像输入单元观察。 移动体识别装置包括用于拍摄作为具有旋转的移动体的物体的图像的图像输入单元,用于从由图像输入单元输入的图像中提取特征点的特征点提取单元,用于存储 所提取的特征点的已知位置数据,以及形状/运动识别单元,用于通过使用从特征点存储器输出的提取的特征点的已知位置数据来计算图像中的对象的特征点的实际位置和移动 单元。
    • 4. 发明授权
    • Moving body recognition apparatus
    • 移动身体识别装置
    • US5444791A
    • 1995-08-22
    • US946540
    • 1992-09-17
    • Hiroshi KamadaTakashi KubotaMorito Shiohara
    • Hiroshi KamadaTakashi KubotaMorito Shiohara
    • H04N5/232G06K9/00G06K9/64G06T7/20
    • G06K9/6211G06K9/00335G06T7/2033
    • A moving body recognition apparatus which recognizes a shape and movement of an object moving in relation to an image input unit by extracting feature points, e.g. a peak of the object and a boundary of color, each in said images captured at a plurality of instants in time for observation by the image input unit. The moving body recognition apparatus comprises an image input unit for capturing images of an object as a moving body having a rotation, a feature point extraction unit for extracting feature points from the images inputted by the image input unit, a feature point storage unit for storing known position data of the extracted feature points, and a shape/movement recognition unit for calculating the actual positions and movements of the feature points of the object in the images by using the known position data of the extracted feature points outputted from the feature point storage unit.
    • 一种移动体识别装置,其通过提取特征点来识别相对于图像输入单元移动的物体的形状和运动,例如, 对象的峰值和颜色的边界,分别在多个时刻捕获的所述图像中,以供图像输入单元观察。 移动体识别装置包括用于拍摄作为具有旋转的移动体的物体的图像的图像输入单元,用于从由图像输入单元输入的图像中提取特征点的特征点提取单元,用于存储 所提取的特征点的已知位置数据,以及形状/运动识别单元,用于通过使用从特征点存储器输出的提取的特征点的已知位置数据来计算图像中的对象的特征点的实际位置和移动 单元。
    • 5. 发明授权
    • Moving body recognition apparatus
    • 移动身体识别装置
    • US5414474A
    • 1995-05-09
    • US026685
    • 1993-03-04
    • Hiroshi KamadaMorito ShioharaYoshiyuki OhtaHideki Yanagishita
    • Hiroshi KamadaMorito ShioharaYoshiyuki OhtaHideki Yanagishita
    • G06T7/20H04N7/32
    • G06T7/2033
    • Apparatus which recognizes a shape and movement of a moving body based on position data of feature points in an image of the moving body in an orthogonal projection image of the moving body. The moving body recognition apparatus includes a feature point position normalization unit for providing normalized coordinates of a feature point by determining an image capture plane of the moving body as the XY plane, a direction in which an orthogonal projection image of a rotation axis of the moving body formed on the image capture plane as the Y axis and a direction of an image capture operation as a Z axis perpendicular to the XY plane and a rotation axis calculation unit for calculating the angle between the axis of rotation of the moving body and the Y axis.
    • 基于移动体的正交投影图像中的移动体的图像中的特征点的位置数据来识别移动体的形状和运动的装置。 移动体识别装置包括:特征点位置归一化单元,用于通过将移动体的图像捕获平面确定为XY平面来提供特征点的归一化坐标;移动体的旋转轴的正交投影图像的方向 在作为Y轴的图像拍摄平面上形成的身体和作为与XY平面垂直的Z轴的图像拍摄操作的方向,以及旋转轴计算单元,用于计算移动体的旋转轴线与Y 轴。
    • 8. 发明授权
    • Device, method and storage medium for recognizing a document image
    • 用于识别文档图像的设备,方法和存储介质
    • US06347156B1
    • 2002-02-12
    • US09216712
    • 1998-12-21
    • Hiroshi KamadaKatsuhito Fujimoto
    • Hiroshi KamadaKatsuhito Fujimoto
    • G06K900
    • H04N1/40068G06K9/38G06K2209/01H04N1/40012
    • A color image input from a document image inputting unit is converted into a gray-scale image by a brightness image extracting unit. The gray-scale image is then converted into an image having a higher resolution according to the resolution of the original gray-scale image. When this conversion is performed, subpixels are generated between the original pixels, and the values of the subpixels are obtained with an interpolation method. Furthermore, a threshold value for a binarization process is generated by using an original pixel value and a subpixel value. The characters included in the binarized image are recognized by a binary image recognizing unit, and a recognition result is output from a recognition result outputting unit.
    • 从文件图像输入单元输入的彩色图像由亮度图像提取单元转换成灰度图像。 然后根据原始灰度图像的分辨率将灰度图像转换成具有更高分辨率的图像。 当执行该转换时,在原始像素之间产生子像素,并且通过插值方法获得子像素的值。 此外,通过使用原始像素值和子像素值来生成二值化处理的阈值。 由二进制图像识别单元识别二值化图像中包含的字符,并从识别结果输出单元输出识别结果。
    • 9. 发明授权
    • Document image recognition apparatus and computer-readable storage medium storing document image recognition program
    • 文件图像识别装置和存储文件图像识别程序的计算机可读存储介质
    • US06332046B1
    • 2001-12-18
    • US09193868
    • 1998-11-18
    • Katsuhito FujimotoHiroshi KamadaKoji Kurokawa
    • Katsuhito FujimotoHiroshi KamadaKoji Kurokawa
    • G06K936
    • G06K9/3283G06K9/00463G06K2209/01
    • A document image tilt detection unit extracts a set of elements forming a character from a document image, extracts candidates for horizontal and vertical lines based on the character elements, estimates the reliability of each candidate for a line, and extracts a set of probable lines. Then, it estimates the tilt of the document image based on the arrangement of the character elements belonging to the line elements in the set of probable lines. A layout analysis unit extracts a set of lines in a fixed line direction from a set of basic elements forming the document image, and reciprocally performs the extraction of a column based on the correlation between lines and the extraction of a line based on the restrictions of the column. By providing the document image tilt detection unit and the layout analysis unit, the tilt of the document image containing both vertical and horizontal character lines can be detected, and lines and columns can be extracted at a high speed with high precision.
    • 文档图像倾斜检测单元从文档图像中提取形成字符的一组元素,基于字符元素提取水平和垂直行的候选,估计每行候选人的可靠性,并提取一组可能的行。 然后,它基于属于可能线组中的线元素的字符元素的排列来估计文档图像的倾斜度。 布局分析单元从形成文档图像的基本元素的集合中提取固定线方向的一组线,并且基于线间的相关性和基于线的提取而相互进行列的提取 列。 通过提供文件图像倾斜检测单元和布局分析单元,可以检测包含垂直和水平字符行两者的文档图像的倾斜,并且可以高精度高速提取行和列。