公开(公告)号：US20050017987A1

公开(公告)日：2005-01-27

申请号：US10716496

申请日：2003-11-20

申请人： Shinichi Horita ,  Koichi Fujiwara ,  Eiro Fujii ,  Koji Fujiwara ,  Osamu Toyama

发明人： Shinichi Horita ,  Koichi Fujiwara ,  Eiro Fujii ,  Koji Fujiwara ,  Osamu Toyama

IPC分类号： G06F17/50 ,  G06T17/20 ,  G09G5/00

CPC分类号： G06T17/20

摘要： A method and an apparatus are provided for merging two meshes whose density differs from each other so as to avoid unnatural appearance. A first mesh and a second mesh that differ from each other in density are merged by the following procedure. Edge length of a portion that becomes a boundary between the first and second meshes is determined, size of a first group of polygons including the edge of the portion is determined based on the determined length and size of a second group of polygons is adjusted so that an adjustment ratio is smaller as a distance between a position of each of the second group of polygons and the portion is greater, the first and second group of polygons being part of polygons structuring the first and second meshes, and the first and second meshes in each of which the polygons are adjusted are merged.

摘要翻译： 提供了一种用于合并密度彼此不同的两个网格的方法和装置，以避免不自然的外观。 通过以下步骤合并第一网格和密度彼此不同的第二网格。 确定成为第一和第二网格之间的边界的部分的边缘长度，基于确定的第二组多边形的长度和尺寸来确定包括该部分的边缘的第一组多边形的大小，使得 第二组多边形的位置与部分之间的距离越大，第一和第二组多边形是构成第一和第二网格的多边形的一部分，并且第一和第二网格在 其中的每一个被调整的多边形被合并。

公开(公告)号：US07215336B2

公开(公告)日：2007-05-08

申请号：US10847886

申请日：2004-05-19

申请人： Koichi Fujiwara ,  Osamu Toyama ,  Eiro Fujii

发明人： Koichi Fujiwara ,  Osamu Toyama ,  Eiro Fujii

IPC分类号： G06T17/00

CPC分类号： G06T17/20

摘要： An object of the present invention is to automatically determine the orientation of a newly generated surface, etc. when performing such processing as filling a dropout portion of three dimensional shape data, and to generate more natural three dimensional shape data. The present invention provides a method for generating a grid-patterned surface in three dimensional shape data, and comprises a first step (#11) for detecting the orientation of a polygon in the three dimensional shape data that is located at a periphery of a surface to be fitted, a second step (#12) for determining the orientation of the surface so that a grid orientation of the surface matches the orientation of the detected polygon, and a third step (#13) for fitting the surface onto the three dimensional shape data while maintaining the thus determined orientation.

摘要翻译： 本发明的目的是在进行填充三维形状数据的压出部分的处理时自动确定新产生的表面等的取向，并且生成更自然的三维形状数据。 本发明提供了一种用于在三维形状数据中生成网格图案表面的方法，并且包括用于检测位于表面周边的三维形状数据中的多边形的取向的第一步骤（＃11） 要安装的第二步骤（＃12），用于确定表面的取向，使得表面的网格取向与检测到的多边形的取向一致;以及第三步骤（＃13），用于将表面装配到三维 同时保持如此确定的取向。

公开(公告)号：US07148904B2

公开(公告)日：2006-12-12

申请号：US10716496

申请日：2003-11-20

申请人： Shinichi Horita ,  Koichi Fujiwara ,  Eiro Fujii ,  Koji Fujiwara ,  Osamu Toyama

发明人： Shinichi Horita ,  Koichi Fujiwara ,  Eiro Fujii ,  Koji Fujiwara ,  Osamu Toyama

IPC分类号： G09G5/00

CPC分类号： G06T17/20

摘要： A method and an apparatus are provided for merging two meshes whose density differs from each other so as to avoid unnatural appearance. A first mesh and a second mesh that differ from each other in density are merged by the following procedure. Edge length of a portion that becomes a boundary between the first and second meshes is determined, size of a first group of polygons including the edge of the portion is determined based on the determined length and size of a second group of polygons is adjusted so that an adjustment ratio is smaller as a distance between a position of each of the second group of polygons and the portion is greater, the first and second group of polygons being part of polygons structuring the first and second meshes, and the first and second meshes in each of which the polygons are adjusted are merged.

摘要翻译： 提供了一种用于合并密度彼此不同的两个网格的方法和装置，以避免不自然的外观。 通过以下步骤合并第一网格和密度彼此不同的第二网格。 确定成为第一和第二网格之间的边界的部分的边缘长度，基于确定的第二组多边形的长度和大小来确定包括该部分的边缘的第一组多边形的大小，使得 第二组多边形的位置与部分之间的距离越大，第一和第二组多边形是构成第一和第二网格的多边形的一部分，并且第一和第二网格在 其中的每一个被调整的多边形被合并。

公开(公告)号：US07006093B2

公开(公告)日：2006-02-28

申请号：US09749624

申请日：2000-12-28

申请人： Koichi Fujiwara ,  Osamu Toyama ,  Eiro Fujii

发明人： Koichi Fujiwara ,  Osamu Toyama ,  Eiro Fujii

IPC分类号： G06T11/20

CPC分类号： G06T19/20 ,  G06T2219/2021

摘要： The steps of obtaining three-dimensional shape data representing a three-dimensional shape model, designating a portion required to be corrected of the three-dimensional shape model, displaying a surface to be joined to the designated portion, modifying a shape of the surface corresponding to a change of a designated parameter of the surface, and re-displaying the modified surface are provided. Filling of a lack portion of a part of the tree-dimensional shape model is achieved by an easy input operation.

摘要翻译： 获取表示三维形状模型的三维形状数据的步骤，指定需要校正的三维形状模型的部分，显示要连接到指定部分的表面，修改相应的表面的形状 提供表面的指定参数的改变，并且重新显示修改的表面。 通过简单的输入操作来实现树形尺寸模型的一部分的缺少部分的填充。

公开(公告)号：US06977660B2

公开(公告)日：2005-12-20

申请号：US10303732

申请日：2002-11-26

申请人： Koichi Fujiwara ,  Eiro Fujii

发明人： Koichi Fujiwara ,  Eiro Fujii

IPC分类号： G06T15/04 ,  G09G5/00

CPC分类号： G06T15/04

摘要： An object of the present invention is to realize a technique capable of generating a texture image from all of polygons constructing a three-dimensional shape model without a dropout and a texture image on which an editing or correcting operation can be easily performed. When a computer reads original three-dimensional model data 51, an original three-dimensional model is set in a virtual model space, and a cylindrical plane is set as a projection plane around the original three-dimensional model. A virtual projection computing unit 14 functions to virtually project a texture image corresponding to a polygon which can be projected onto the projection plane, thereby generating a projected texture image. On the other hand, by individually extracting a unit texture image corresponding to a polygon which cannot be projected onto the projection plane, thereby generating an unprojected texture image.

摘要翻译： 本发明的一个目的是实现一种能够从构成没有压差的三维形状模型的所有多边形生成纹理图像的技术和可以容易地执行编辑或校正操作的纹理图像。 当计算机读取原始三维模型数据51时，将原始三维模型设置在虚拟模型空间中，并且将圆柱形平面设置为围绕原始三维模型的投影平面。 虚拟投影计算单元14用于虚拟投影与能够投影到投影平面上的多边形相对应的纹理图像，从而生成投影的纹理图像。 另一方面，通过单独提取与不能投影到投影平面上的多边形相对应的单位纹理图像，从而生成未投影的纹理图像。

公开(公告)号：US06775010B2

公开(公告)日：2004-08-10

申请号：US10075230

申请日：2002-02-15

申请人： Eiro Fujii ,  Shigeaki Imai ,  Toshio Norita

发明人： Eiro Fujii ,  Shigeaki Imai ,  Toshio Norita

IPC分类号： G01B1124

CPC分类号： G01B11/2518 ,  G06T7/521

摘要： When a scanning start position set signal is input in an area image sensor, the content is transferred to a vertical scanning circuit, and the scan start position is set. Image of a desired row is read by horizontal scanning. Then, one shift signal for vertical scanning is input, the position of scanning is shifted by one row, and horizontal scanning is performed. Thus image of the next row is read. By repeating this operation, a desired strip-shaped image is read. The shape of the object is determined and when a portion is determined to have complicated shape, the image data is input by means of a lens having long focal length, and image data of other portions are input by means of a lens having short focal length. By putting together a plurality of input image data, image data as a whole is generated.

公开(公告)号：US06466892B2

公开(公告)日：2002-10-15

申请号：US10091989

申请日：2002-03-05

申请人： Eiro Fujii ,  Koichi Shiono

发明人： Eiro Fujii ,  Koichi Shiono

IPC分类号： G01B1500

CPC分类号： G06T17/205 ,  G06T17/20

摘要： Based on the maximum value of distances between vertexes of polygons in a plurality of polygon meshes, the size of voxel is determined. Next, respective potential values for a plurality of polygon meshes are obtained on the basis of signed respective distances of voxels and a sum of the potential values is obtained as an added potential value. A polygon mesh made of an equivalent: face of the added potential value is defined as a surface mesh. Comparison between the surface mesh and the a plurality of original polygon meshes is performed, to determine respective vertexes (corresponding-vertexes) of a plurality of original meshes corresponding to each vertex of the surface mesh. The polygons of the surface mesh is divided/synthesized to obtain intermediate surface data. Referring to the original polygon meshes, respective vertexes of the intermediate surface data are moved. Composed polygon mesh data can be obtained with stability even if the original three-dimensional data have some errors, within a time of practical level, without unnecessarily high redundancy, while maintaining the accuracy and resolution of the three-dimensional multi-viewpoints data.

摘要翻译： 基于多个多边形网格中的多边形的顶点之间的距离的最大值，确定体素的大小。 接下来，基于体素的有符号的相应距离获得多个多边形网格的各个电位值，并且获得电位值的和作为附加电位值。 由等效的增加的电位值的面组成的多边形网格被定义为表面网格。 执行表面网格和多个原始多边形网格之间的比较，以确定对应于表面网格的每个顶点的多个原始网格的各个顶点（对应顶点）。 分割/合成表面网格的多边形以获得中间表面数据。 参考原始多边形网格，移动中间表面数据的各个顶点。 即使在保持三维多视点数据的精度和分辨率的同时，在实际水平的时间内，没有不必要的高冗余度，即使原始的三维数据具有一些误差，也可以稳定地获得组合的多边形网格数据。

公开(公告)号：US06346949B1

公开(公告)日：2002-02-12

申请号：US08747819

申请日：1996-11-13

申请人： Koji Fujiwara ,  Eiro Fujii ,  Shigeaki Imai ,  Yoshiko Sakagawa

发明人： Koji Fujiwara ,  Eiro Fujii ,  Shigeaki Imai ,  Yoshiko Sakagawa

IPC分类号： G06T1700

CPC分类号： G06T17/20

摘要： In a processor for generating a three-dimensional form model, data MX on an object having a three-dimensional form are read, while two-dimensional color image GX1 are read in correspondence to the form data MX. Then, color boundaries are discriminated in the color image GX1, and the form data MX are thinned except portions in correspondence to the color boundaries. Thus, the amount of data is reduced without losing information on the color boundaries of the form.

摘要翻译： 在用于生成三维形式模型的处理器中，读取具有三维形式的对象上的数据MX，而对应于表格数据MX读取二维彩色图像GX1。 然后，在彩色图像GX1中区分颜色边界，除了对应于颜色边界的部分之外，格式数据MX变薄。 因此，减少数据量而不丢失关于形式的颜色边界的信息。

公开(公告)号：US06992665B2

公开(公告)日：2006-01-31

申请号：US09816405

申请日：2001-03-26

申请人： Osamu Toyama ,  Shinichi Horita ,  Eiro Fujii

发明人： Osamu Toyama ,  Shinichi Horita ,  Eiro Fujii

IPC分类号： G06T15/00

CPC分类号： G06F17/175

摘要： The present invention provides a method for fitting a surface to a point group using computer. The method enables to prevent an improper modification or an erroneous modification even when the point group includes a point having a low reliability, thus to achieve proper modification. The method comprises a first step for judging reliability of each of points composing the point group and a second step for changing the method for fitting the surface to the point group based on the result of judgment of the first step. In the second step, the method for fitting is changed by varying weights of the points based on the reliabilities.

公开(公告)号：US06405151B1

公开(公告)日：2002-06-11

申请号：US09407771

申请日：1999-09-28

申请人： Eiro Fujii ,  Koichi Shiono

发明人： Eiro Fujii ,  Koichi Shiono

IPC分类号： G01B1500

CPC分类号： G06T17/205 ,  G06T17/20

摘要： Based on maximum value of distances between vertexes of polygons in plurality of polygon meshes, size of voxel is determined. Respective potential values for plurality of polygon meshes are obtained on basis of signed respective distances of voxels. Sum of potential values is obtained as added potential value. Polygon mesh made of equivalent face of added potential value is defined as surface mesh. Comparison between surface mesh and plurality of original polygon meshes is performed, to determine respective vertexes of plurality of original meshes corresponding to each vertex of surface mesh. Polygons of surface mesh are divided/synthesized to obtain intermediate surface data. Referring to original polygon meshes, respective vertexes of intermediate surface data are moved. Composed polygon mesh data are obtained with stability even if original three-dimensional data have errors, within practical time, without unnecessarily high redundancy, while maintaining accuracy and resolution of three-dimensional multi-viewpoints data.

摘要翻译： 基于多个多边形网格中的多边形的顶点之间的距离的最大值，确定体素的大小。 基于体素的有符号的相应距离获得多个多边形网格的各个电位值。 获得电位值的和作为附加电位值。 由等效面添加电位值制成的多边形网格定义为表面网格。 执行表面网格和多个原始多边形网格之间的比较，以确定对应于表面网格的每个顶点的多个原始网格的各个顶点。 分割/合成表面网格的多边形以获得中间表面数据。 参考原始多边形网格，移动中间表面数据的各个顶点。 即使原始的三维数据具有错误，在实际的时间内没有不必要的高冗余度，同时保持三维多视点数据的精度和分辨率，也可以获得稳定的组合多边形网格数据。