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：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：US07123254B2

公开(公告)日：2006-10-17

申请号：US09893897

申请日：2001-06-29

申请人： Osamu Toyama ,  Eiro Fujii ,  Tomasz Kowalczyk ,  Shinichi Horita

发明人： Osamu Toyama ,  Eiro Fujii ,  Tomasz Kowalczyk ,  Shinichi Horita

IPC分类号： G06T15/00

CPC分类号： G06T17/00

摘要： The invention provides a method for generating a three-dimensional model by modifying a standard model based on measured data without causing a topical improper modification. In the method, it is decided whether to further modify the standard model or to finish the modification of the standard model based on integrated evaluation of two or more functions selected from a first function relating to a distance between the standard model and the measured data, a second function relating to a distance between a characteristic point defined on the standard model and a characteristic point specified on the measured data and corresponding to the characteristic point defined on the standard model and a third function relating to a distance between an outline defined on the standard model and an outline specified on the measured data and corresponding to the outline on the standard model.

公开(公告)号：US07015934B2

公开(公告)日：2006-03-21

申请号：US09985546

申请日：2001-11-05

申请人： Osamu Toyama ,  Eiro Fujii ,  Yuzuru Tanaka

发明人： Osamu Toyama ,  Eiro Fujii ,  Yuzuru Tanaka

IPC分类号： G09G5/00

CPC分类号： G06T13/40 ,  H04N7/147

摘要： The present invention aims at realizing displaying of a realistic image of a conversation scene in which a speaker can be visually recognized by people watching this image regardless of the content of the image. To this end, according to the present invention, a two-dimensional or three-dimensional face model is deformed, and animations A1i through A3i which express a state in which a person is speaking are consequently created and displayed as auxiliary images.

摘要翻译： 本发明旨在实现对观看该图像的人可视觉地识别扬声器的对话场景的真实图像的显示，而不管图像的内容如何。 为此，根据本发明，二维或三维面部模型变形，并且表示状态的动画A 1，...， 因此，其中正在说话的人被创建并显示为辅助图像。

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：US07327363B2

公开(公告)日：2008-02-05

申请号：US11243025

申请日：2005-10-04

申请人： Koichi Fujiwara ,  Osamu Toyama

发明人： Koichi Fujiwara ,  Osamu Toyama

IPC分类号： G06T15/00

CPC分类号： G06T15/08

摘要： When volume data of a three-dimensional object to be processed is read and stored into a predetermined storage, first, a plurality of reference planes are set and a plurality of reference distance maps each indicative of distribution of distances between the three-dimensional object and each of the reference planes are generated. Next, when an actual projection plane onto which the three-dimensional object is projected in the volume rendering is set, two or more distance maps out of the plurality of reference distance maps are converted into two or more converted distance maps in accordance with a positional relation between two or more reference planes corresponding to the two or more distance maps and the actual projection plane, and integrating the resultants, thereby generating a distance map for visualization indicative of distribution of distances between the three-dimensional object and the actual projection plane.

摘要翻译： 当要处理的三维物体的体积数据被读取并存储到预定存储器中时，首先设置多个参考平面，并且将多个参考距离映射到每一个指示三维物体和 生成每个参考平面。 接下来，当在体绘制中投射了三维物体的实际投影平面被设置时，多个参考距离图中的两个或更多个距离映射根据位置 对应于两个或更多个距离图和实际投影平面的两个或更多个参考平面之间的关系，并且对结果进行积分，从而生成用于可视化的距离图，指示三维物体与实际投影平面之间的距离分布。

公开(公告)号：US20060291724A1

公开(公告)日：2006-12-28

申请号：US11471778

申请日：2006-06-21

申请人： Koichi Fujiwara ,  Osamu Toyama ,  Shinichi Horita

发明人： Koichi Fujiwara ,  Osamu Toyama ,  Shinichi Horita

IPC分类号： G06K9/00

CPC分类号： G06K9/6207 ,  G06K9/342 ,  G06K9/4638 ,  G06K2209/05 ,  G06T7/12 ,  G06T7/149 ,  G06T7/187 ,  G06T7/66 ,  G06T2207/10072 ,  G06T2207/20116 ,  G06T2207/30004

摘要： A region extraction system includes a temporary region extractor for temporarily extracting a to-be-extracted region from measured data with a region growing technique, an initial position determiner for determining an initial position of a standard model for the to-be-extracted region using the to-be-extracted region temporarily extracted, and a to-be-extracted region extractor for extracting the to-be-extracted region from the measured data with a model fitting technique using the standard model.

摘要翻译： 一种区域提取系统包括一个临时区域提取器，用于利用区域生长技术临时提取来自测量数据的提取区域;初始位置确定器，用于确定待提取区域的标准模型的初始位置，使用 临时提取的被提取区域和用于使用标准模型的模拟拟合技术从测量数据中提取待提取区域的提取区域提取器。

公开(公告)号：US08532392B2

公开(公告)日：2013-09-10

申请号：US13379520

申请日：2010-03-18

申请人： Koichi Fujiwara ,  Osamu Toyama

发明人： Koichi Fujiwara ,  Osamu Toyama

IPC分类号： G06K9/46

CPC分类号： G06T7/149 ,  G06T7/12 ,  G06T2207/10132 ,  G06T2207/20116 ,  G06T2207/30101

摘要： An object of the present invention is to provide the technology capable of appropriately balancing the preciseness of contour extraction and calculation cost. In order to achieve this object, an energy function setting section sets an energy function that is expressed by a weighted linear sum of a plurality of kinds of energy terms defined correspondingly to a state of an active curve and is formulated so as to have a smaller value as approaching a shape of the contour to be extracted, and an iterative computation processing section minimizes the energy function by an iterative computation. An end instruction section sets an auxiliary function formulated so as to monotonously increase in accordance with the number of iteration times of iterative computation and sets a judging function expressed by a linear sum of the auxiliary function and the energy function. Then, a point of time when a local minimum appears in the judging function in the course of the iterative computation is judged as the end timing of iterative computing.

摘要翻译： 本发明的目的是提供能够适当地平衡轮廓提取的精度和计算成本的技术。 为了实现该目的，能量函数设定部设定能量函数，该能量函数由对应于活性曲线的状态定义的多种能量项的加权线性和表示，并且被配置为具有较小的 值接近要提取的轮廓的形状，迭代计算处理部通过迭代计算使能量函数最小化。 结束指令部分设置辅助功能，以便根据迭代计算的迭代次数单调增加，并设置由辅助功能和能量函数的线性和表示的判断功能。 然后，在迭代计算过程中在判断功能中出现局部最小值的时间点被判断为迭代计算的结束时刻。