公开(公告)号：US4860217A

公开(公告)日：1989-08-22

申请号：US812341

申请日：1985-12-23

申请人： Nobuo Sasaki ,  Tetsuzo Kuragano ,  Nobuyuki Minami

发明人： Nobuo Sasaki ,  Tetsuzo Kuragano ,  Nobuyuki Minami

IPC分类号： H04N5/262

CPC分类号： H04N5/2628

摘要： A method and system for effecting a transformation of video image on a video screen applicable to a system for producing a special visual effect on, e.g., a television screen, in which a two-dimensional address plane is defined within a memory area, input video image is stored within the memory area, a cylinder shaped virtual image is placed on the address plane, a part of the address plane is wound on the cylinder shaped image, and when the cylinder shaped image is displaced along a predetermined direction on the address plane with a radius of a circle in vertical section thereof being varied with time, the address plane can be viewed as if it were turned over. If the input address data within the memory area is read out on the basis of output address data indicating the above-described displacement of the address plane, the output video image on the video screen can be viewed therethrough as if the video image were being turned over.

摘要翻译： 用于在适用于在例如电视屏幕上产生特殊视觉效果的系统的视频屏幕上进行视频图像变换的方法和系统，其中在存储区域内定义了二维地址平面，输入视频 图像被存储在存储区域内，圆筒形虚像被放置在地址平面上，地址平面的一部分被卷绕在圆柱形图像上，并且当圆柱形图像沿着地址平面上的预定方向移位时 其垂直截面中的圆的半径随时间而变化，则可以将地址平面看成如同翻转一样。 如果基于指示上述地址平面位移的输出地址数据来读出存储区内的输入地址数据，则视频屏幕上的输出视频图像可以被视为视频图像被转动 过度。

公开(公告)号：US4789931A

公开(公告)日：1988-12-06

申请号：US91983

申请日：1987-09-01

申请人： Tetsuzo Kuragano ,  Nobuo Sasaki

发明人： Tetsuzo Kuragano ,  Nobuo Sasaki

IPC分类号： G05B19/4093 ,  G05B19/4099 ,  G05B19/41 ,  G06F15/46 ,  G05B19/18

CPC分类号： G05B19/4099 ,  G05B19/41 ,  G05B2219/33257 ,  G05B2219/34101 ,  G05B2219/35002 ,  G05B2219/35097 ,  G05B2219/35115 ,  G05B2219/35117 ,  G05B2219/35151 ,  G05B2219/35313 ,  G05B2219/35316 ,  G05B2219/35525 ,  G05B2219/37617 ,  G05B2219/45145 ,  G05B2219/49149 ,  G05B2219/49151 ,  G05B2219/50332 ,  G05B2219/50336 ,  G05B2219/50356 ,  Y02P90/265

摘要： A system for establishing data defining a path for machining tool such as a three-axes milling machine tool. The machining tool path is established within a three-dimensional rectangular coordinate system which corresponds to a machine coordinate system for numerical control. The tool path is established along a first coordinate axis. The tool path is shifted to an adjacent path along the first coordinate axis in a second axis direction. The shifting pitch of the path corresponds to the interval of said path along the first the coordinate axis. The tool is shifted in third axis direction during travel along the path defined in the first and second axis direction.

摘要翻译： 一种用于建立数据的系统，用于定义加工工具的路径，如三轴铣床。 在与数控机床坐标系对应的三维直角坐标系中建立加工刀具路径。 沿第一坐标轴建立刀具路径。 刀具路径在第二轴方向上沿着第一坐标轴移动到相邻路径。 路径的移动间距对应于沿着第一坐标轴的所述路径的间隔。 在沿着在第一和第二轴线方向上限定的路径的行进期间，该工具沿第三轴线方向移动。

公开(公告)号：US4866631A

公开(公告)日：1989-09-12

申请号：US110503

申请日：1987-10-19

申请人： Tetsuzo Kuragano ,  Nobuo Sasaki

发明人： Tetsuzo Kuragano ,  Nobuo Sasaki

IPC分类号： G05B19/41

CPC分类号： G05B19/41 ,  G05B2219/50336 ,  Y02P90/265

摘要： A method for generating offset surface data representing a tool path of a tool traversing patches which are mutually adjoining at boundary lines where there is no continuity of the osculating planes. The offset surface data is interpolated for the parts of the surface at which the offset surface data become mutually discontinuous at the boundary lines or for a patch having a sharp corner. The present invention is applicable to a NC (Numerical Control) machining center which can control a machine tool so as to prevent excessive milling by the tool at the discontinuous parts of the offset surface.

摘要翻译： 一种用于产生偏移面数据的方法，该偏移表面数据表示在不存在切割平面的连续性的边界线处相互邻接的穿过贴片的工具的刀具路径。 对于表面的偏移表面数据在边界线处或具有尖角的贴片相互不连续的部分，内插偏移表面数据。 本发明适用于能够控制机床的NC（数控）加工中心，以防止工具在偏移表面的不连续部分处的过度铣削。

公开(公告)号：US5065348A

公开(公告)日：1991-11-12

申请号：US656012

申请日：1991-02-14

申请人： Tetsuzo Kuragano ,  Akira Suzuki ,  Nobuo Sasaki

发明人： Tetsuzo Kuragano ,  Akira Suzuki ,  Nobuo Sasaki

IPC分类号： G06T17/20

CPC分类号： G06T17/20

摘要： A free curved surface generating system and method in which a plurality of cross sectional curves representing cross sectional shapes in an x-y coordinate system are generated, the plurality of cross sectional curves are arranged at desired positions in the x-y-z coordinate system, respectively, and thereafter a curved surface is formed between mutually adjacent cross sectional curves through an interpolation to generate the free curved surface are disclosed. In the free curved surface generating system and method, when the parallel translations and rotations are carried out for the generated cross sectional curves in the x-y-z coordinate system, the parallel translations and rotations are stored for each cross sectional curve into a memory and each cross sectional curve is parallel translated and rotated on the basis of data on the parallel translations and rotations for the corresponding cross sectional curve stored in the memory when the cross sectional curves are moved again into the x-y-z coordinate system.

公开(公告)号：US5659774A

公开(公告)日：1997-08-19

申请号：US907302

申请日：1992-07-01

申请人： Katsu Saito ,  Tetsuzo Kuragano

发明人： Katsu Saito ,  Tetsuzo Kuragano

IPC分类号： G06F17/50

CPC分类号： G06F17/50 ,  Y10S715/964

摘要： A three-dimensional physical quantity calculating system calculates the physical quantities of the whole cubic body composed of a plurality of elementary cubic bodies. The system includes a table calculating section for calculating the physical quantities of the whole cubic body on the basis of physical parameters inputted through an input section. The physical quantities of the respective elementary cubic bodies are calculated by an elementary cubic body physical quantity calculating section in accordance with predetermined calculation formula.

摘要翻译： 三维物理量计算系统计算由多个基本立方体组成的整个立方体的物理量。 该系统包括：基于通过输入部输入的物理参数来计算整体立方体的物理量的表计算部。 根据预定的计算公式，通过基本立方体物理量计算部计算各基体立方体的物理量。

公开(公告)号：US5557719A

公开(公告)日：1996-09-17

申请号：US389562

申请日：1995-02-15

申请人： Miwa Ooka ,  Tetsuzo Kuragano

发明人： Miwa Ooka ,  Tetsuzo Kuragano

IPC分类号： G06F17/50 ,  G06T15/00 ,  G06T17/30

CPC分类号： G06T17/30

摘要： In a method for forming free-form curves and free-form surfaces, the nodal points of the object to be projected and a series of points set on the object to be projected are projected onto a patch. Free-form curves are generated on the patch on the basis of the result of projection. Thereby, free-form curves of the geometry projecting free-form curves may be generated readily and with high accuracy on the patch and, further, the free-form curves may be used to generate a framing space, or a free-form surface.

摘要翻译： 在形成自由曲线和自由曲面的方法中，要投影的对象的节点和设置在要投影的对象上的一系列点被投影到贴片上。 基于投影结果，在贴片上生成自由曲线。 因此，可以容易地并且在贴片上以高精度产生投射自由曲线的几何形状的自由曲线，此外，自由曲线可用于产生框架空间或自由曲面。

公开(公告)号：US5481659A

公开(公告)日：1996-01-02

申请号：US761957

申请日：1991-10-08

申请人： Shiro Nosaka ,  Tetsuzo Kuragano

发明人： Shiro Nosaka ,  Tetsuzo Kuragano

IPC分类号： G06T17/20

CPC分类号： G06T17/20

摘要： A free-form surface data generating method for creating a free-form surface by forming trilateral patches expressed by predetermined vector functions over frame spaces. When specifying a transformation of a common boundary, the common boundary is arbitrarily transformed and, simultaneously, the first and second trilateral patches are connected while keeping a relation in surface geometry. When specifying non-transformation of the common boundary, a curvilinear configuration of the common boundary is maintained, and the first and second patches are connected by arbitrarily transforming the surface geometries of the first and second trilateral patches so that the surface geometries of the first and second trilateral patches are selectable by specifying whether the common boundary is transformed or not. The first and second trilateral patches can thus be connected invariably, surely and smoothly by satisfying only conditions under which a first tangent vector along the common boundary and second and third tangent vectors invariably exist on a same plane at an arbitrary point on the common boundary, where the second and third tangent vectors are directed to the first and second trilateral patches across the common boundary.

摘要翻译： PCT No.PCT / JP91 / 00045 Sec。 371日期1991年10月8日 102（e）日期1991年10月8日PCT 1991年1月18日PCT PCT。 公开号WO91 / 10965 日期1991年7月25日。一种自由曲面数据生成方法，用于通过在帧空间上形成由预定向量函数表示的三边补片来创建自由曲面。 当指定公共边界的变换时，公共边界被任意变换，并且同时，保持第一和第二三边形补片保持表面几何关系。 当指定公共边界的非变换时，维持公共边界的曲线配置，并且通过任意地变换第一和第二三边贴片的表面几何形状来连接第一和第二贴片，使得第一和第二贴片的表面几何形状 可以通过指定公共边界是否被转换来选择第二个三边补丁。 因此，通过仅满足在公共边界上的任意点处沿着公共边界的第一切向矢量和第二和第三切向矢量总是存在于同一平面上的条件，第一和第二三边贴片可以总是可靠地平稳地连接， 其中第二和第三切向量横跨公共边界被引导到第一和第三三边贴。

公开(公告)号：US5410645A

公开(公告)日：1995-04-25

申请号：US267838

申请日：1994-06-28

申请人： Miwa Ooka ,  Tetsuzo Kuragano

发明人： Miwa Ooka ,  Tetsuzo Kuragano

IPC分类号： G06F17/50 ,  G06T17/20 ,  G06F15/62

CPC分类号： G06T17/20

摘要： Methods for generating free curves and sculptured surfaces illustratively for use with a computer aided design/computer aided manufacturing (CAD/CAM) apparatus whereby Bezier curves and surfaces are readily generated with reference to point sequences, point groups and surfaces. In operation, a starting point and an end point for a sequence of points are set as nodes, and a free curve is temporarily established thereby. Then control points are repeatedly established to minimize the shortest distances between the points in the sequence and the free curve. By use of the coordinates of a plurality of points, the shortest distance is found between each of these points and a reference patch. The internal control points are set so as to minimize the total sum of these shortest distances. When a patch is generated whose external shape is represented by a plurality of points, with another plurality of points also set on the reference patch for modification, a Bezier surface is generated with respect to these point groups and surfaces.

摘要翻译： 用于产生自由曲线和雕刻表面的方法，其示例性地用于与计算机辅助设计/计算机辅助制造（CAD / CAM）装置一起使用，从而参考点序列，点组和表面容易地生成贝塞尔曲线和曲面。 在操作中，将点序列的起点和终点设置为节点，由此临时建立自由曲线。 然后重复建立控制点，以使序列中的点和自由曲线之间的最短距离最小化。 通过使用多个点的坐标，在这些点中的每个点和参考块之间找到最短距离。 设置内部控制点以最小化这些最短距离的总和。 当生成其外部形状由多个点表示的贴片时，另外多个点也被设置在参考贴片上以进行修改，就相对于这些点组和表面生成贝塞尔表面。

公开(公告)号：US5363477A

公开(公告)日：1994-11-08

申请号：US784926

申请日：1991-10-30

申请人： Tetsuzo Kuragano ,  Saga Fumie

发明人： Tetsuzo Kuragano ,  Saga Fumie

IPC分类号： G06T11/00 ,  G06T15/80 ,  G06F15/72 ,  G06F15/62

CPC分类号： G06T15/50

摘要： A method for displaying an image of an object surface on a screen in which a non-linear transformation is applied to the luminance value at points on the surface of the object in accordance with an illumination model, accounting for only ambient light and diffusedly reflected light. Lighter and darker portions of the surface are emphasized to express glossiness of the surface in a simulated manner. Color of the image can be designated by selecting a point in a chart having a fixed value of lightness of a color cube, the color cube having coordinate axes representing hue, lightness, and saturation of color.

摘要翻译： 一种用于在屏幕上显示对象表面的图像的方法，其中根据照明模型对物体表面上的点处的亮度值应用非线性变换，仅考虑环境光和漫反射光 。 强调表面的较浅和较暗的部分以模拟方式表达表面的光泽度。 可以通过选择具有彩色立方体的亮度的固定值的固定值的图表中的点来指定图像的颜色，该颜色立方体具有表示色彩，亮度和色彩饱和度的坐标轴。

公开(公告)号：US5323326A

公开(公告)日：1994-06-21

申请号：US840936

申请日：1992-02-25

申请人： Katsu Saito ,  Tetsuzo Kuragano

发明人： Katsu Saito ,  Tetsuzo Kuragano

IPC分类号： G06F17/50 ,  G05B19/4097 ,  G05B19/4099 ,  G06F15/46

CPC分类号： G05B19/4097 ,  G05B19/4099 ,  G05B2219/35123 ,  G05B2219/35124 ,  Y02P90/265

摘要： Disclosed is a shape data processing method illustratively for use with a CAD,CAM (computed aided design/ computer aided manufacturing) system. The method involves measuring the volume of a target product based on the shape data of that product. In operation, a virtual projection surface is established for the target object to be measured. The surface of the object is divided into small regions. A column portion is formed as an extension from each small region to the projection surface. The volume of the column portion is measured for each small region. The measured volumes are accumulated in accordance with the orientation of the normal vector to each small region. This method allows the volume of the target object to be measured easily and with precision even if the shape thereof is complex.

摘要翻译： 公开了一种用于CAD，CAM（计算机辅助设计/计算机辅助制造）系统的形状数据处理方法。 该方法包括基于该产品的形状数据来测量目标产品的体积。 在操作中，为要测量的目标物体建立虚拟投影面。 物体表面分为小区域。 柱部分形成为从每个小区域到投影表面的延伸。 对于每个小区域测量柱部分的体积。 根据法向量对每个小区域的取向累积测量体积。 该方法允许目标对象的体积容易且精确地测量，即使其形状复杂。