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    • 71. 发明授权
    • Image segmentation method and apparatus therefor
    • 图像分割方法及其设备
    • US5247583A
    • 1993-09-21
    • US606629
    • 1990-10-31
    • Makoto KatoShinichiro MiyaokaMakoto NohmiHiroyuki OkawaraToyohisa Morita
    • Makoto KatoShinichiro MiyaokaMakoto NohmiHiroyuki OkawaraToyohisa Morita
    • G06T7/00G06T5/00
    • G06T7/0083G06T2207/10024G06T2207/20021G06T2207/20104G06T2207/20136
    • An image processing area is divided into a plurality of small areas which are allowed to overlap one another. One or a plurality of pixels in a region to be segmented and in a region not to be segmented are specified. A representative point of the region to be segmented and a reference point of the region not to be segmented are determined from the color information of each of the pixels. A discriminating plane, a plane or a curved surface that intersects the line segment connecting the representative point and the reference point a right angles is used in processing. By the processing a particular region can be segmented out of the image. Further, a shape model is made by two-dimensionally projecting from a given direction the three-dimensional structure expressed by a line drawing consisting of nodes and curves connecting the nodes based on priori property relating the structure of the region to be segmented in the image. The shape model is then roughly correlated in position with the nodes on the contour of the image. An image processing provides stripe images having widths for each of the curves that is recomposed and used to find the contour and structure of the object in detail.
    • 图像处理区域被分成允许彼此重叠的多个小区域。 指定要分割的区域中的一个或多个像素和不被分割的区域中。 根据每个像素的颜色信息确定要分割的区域的代表点和不被分割的区域的参考点。 在处理中使用与连接代表点和参考点成直角的线段相交的鉴别平面,平面或曲面。 通过处理,特定区域可以从图像中分割出来。 此外,通过基于与图像中要分割的区域的结构有关的先验属性从由给定方向二维地投影由由连接节点的节点和曲线组成的线条表示的三维结构来形成形状模型 。 形状模型然后在位置上与图像轮廓上的节点大致相关。 图像处理提供条带图像,其具有用于重新组合并用于详细查找对象的轮廓和结构的每个曲线的宽度。
    • 72. 发明授权
    • Spatial light modulation device and image reconstructing apparatus using
the same
    • 空间光调制装置及使用其的图像重建装置
    • US5173954A
    • 1992-12-22
    • US813045
    • 1991-12-23
    • Makoto KatoYoshihiro Takiguchi
    • Makoto KatoYoshihiro Takiguchi
    • H01J31/50
    • H01J31/501
    • A spatial light modulation device includes a spatial light modulation tube and converts a one-dimensional photoelectron image into a two-dimensional electron image, rotating the two-dimensional electron image, subjecting the rotated two-dimensional electron image and a previously stored electron image to addition or subtraction, and stores the electron image thus processed. An image reconstructing apparatus includes: projection means for detecting as projection data a projection of internal information of an object; the spatial light modulation device which produces and stores a corrected reconstructed image on the basis of a one-dimensional correction data image and a previously stored reconstructed image; optical reading means for reading out the reconstructed image form the spatial light modulation device; summing means for integrating parts of the readout reconstructed image to produce sum data; and comparison and correction means for subjecting the projection data and the sum data to comparison to form the one-dimensional correction data image.
    • 空间光调制装置包括空间光调制管,并将一维光电子图像转换成二维电子图像,旋转二维电子图像,对旋转的二维电子图像和预先存储的电子图像进行 加法或减法,并存储如此处理的电子图像。 一种图像重建装置,包括:投影装置,用于检测作为投影数据的物体的内部信息的投影; 空间光调制装置,其基于一维校正数据图像和先前存储的重建图像产生并存储经校正的重建图像; 光学读取装置,用于从空间光调制装置读出重建图像; 求和装置,用于对读出的重构图像的部分进行积分以产生和数据; 以及用于对投影数据和和数据进行比较的比较和校正装置,以形成一维校正数据图像。