公开(公告)号：US20080278486A1

公开(公告)日：2008-11-13

申请号：US11814810

申请日：2006-01-23

申请人： Jerome Royan ,  Loic Bouget ,  Romain Cavagna

发明人： Jerome Royan ,  Loic Bouget ,  Romain Cavagna

IPC分类号： G06T15/00 ,  G06T17/00

CPC分类号： G06T17/005 ,  G06T15/40 ,  G06T2210/36

摘要： The present invention sets out to combine a calculation of visibility from a viewpoint, with the selection of a level of detail for each of the nodes in a tree representing the geometry of the objects in a scene, so as increase the level of geometric detail of the visible objects and to reduce this level for all the obscured objects.

摘要翻译： 本发明规定了将来自视点的可视性的计算与对表示场景中的对象的几何形状的树中的每个节点的细节级别的选择进行组合，从而增加了场景中几何细节的等级 可见对象，并减少所有被遮挡物体的等级。

公开(公告)号：US20080193027A1

公开(公告)日：2008-08-14

申请号：US11665136

申请日：2005-09-30

申请人： Patrick Gioia ,  Loic Bouget

发明人： Patrick Gioia ,  Loic Bouget

IPC分类号： G06K9/36

CPC分类号： G06T9/001 ,  G06T9/40 ,  G06T17/20

摘要： A method is provided for decoding a data stream representing an object with at least three dimensions, associated with a basic mesh including of an assembly of facets defined by an assembly of vertices and ridges, and with wavelet coefficients corresponding to the local modifications of the basic mesh, indexed each by a vertex of the basic mesh. For at least some wavelet coefficients of the data stream, the method includes the following steps: determining an orientation of a ridge bearing the vertex indexing the wavelet coefficients, called an orientation of the wavelet coefficient; and determining, based on the orientation, information for locating in the basic mesh at least one child of the wavelet coefficient, distinct locating rules being associated with each orientation, so as to extract a data stream of at least some of the wavelet coefficients, associated each with a locating information.

摘要翻译： 提供了一种用于对表示具有至少三维的对象的数据流进行解码的方法，所述数据流与包括由顶点和脊的组合定义的面的组合的基本网格相关联，并且具有对应于基本的局部修改的小波系数 网格，每个由基本网格的顶点索引。 对于数据流的至少一些小波系数，该方法包括以下步骤：确定承载具有索引小波系数的顶点的脊的方位，称为小波系数的取向; 以及基于所述方向确定用于在所述基本网格中定位所述小波系数的至少一个子代的信息，将不同的定位规则与每个取向相关联，以便提取与所述小波系数中的至少一些小波系数相关联的数据流 每个都有一个定位信息。

公开(公告)号：US20060111834A1

公开(公告)日：2006-05-25

申请号：US11252874

申请日：2005-10-19

申请人： Loic Bouget ,  Jean-Michel Magret ,  Patrick Gioia

发明人： Loic Bouget ,  Jean-Michel Magret ,  Patrick Gioia

IPC分类号： G01C21/34

CPC分类号： G01C21/3644 ,  G06Q10/025 ,  G08G1/096827

摘要： The invention relates to a guiding process comprising the stages of: generating (106) an itinerary between starting and finishing points; generating guiding instructions including: the establishing (107) of several outstanding points close to a part of the itinerary taken from a database (2); the calculating (107) of an index representative of the visibility of outstanding points established from said part of the itinerary; the selecting (107) of at least one outstanding point according to the index of visibility; the generating (108) of guiding instructions associated with a selected outstanding point.

摘要翻译： 本发明涉及一种引导过程，其包括以下阶段：产生（106）起始点和终点之间的行程; 产生指导性指示，包括：建立（107）靠近从数据库（2）获取的行程的一部分的几个未完成的点; 计算（107）表示从行程的所述部分确定的未完成点的可见度的指标; 根据可见度指标选择（107）至少一个未决点; 指导与所选择的未完成点相关联的指令的生成（108）。

公开(公告)号：US08086054B2

公开(公告)日：2011-12-27

申请号：US11665136

申请日：2005-09-30

申请人： Patrick Gioia ,  Loic Bouget

发明人： Patrick Gioia ,  Loic Bouget

IPC分类号： G06K9/36 ,  G06K9/46

CPC分类号： G06T9/001 ,  G06T9/40 ,  G06T17/20

摘要： A method is provided for decoding a data stream representing an object with at least three dimensions, associated with a basic mesh including of an assembly of facets defined by an assembly of vertices and ridges, and with wavelet coefficients corresponding to the local modifications of the basic mesh, indexed each by a vertex of the basic mesh. For at least some wavelet coefficients of the data stream, the method includes the following steps: determining an orientation of an edge bearing the vertex indexing the wavelet coefficients, called an orientation of the wavelet coefficient; and determining, based on the orientation, information for locating in the basic mesh at least one child of the wavelet coefficient, distinct locating rules being associated with each orientation, so as to extract a data stream of at least some of the wavelet coefficients, associated each with locating information.

摘要翻译： 提供了一种用于对表示具有至少三维的对象的数据流进行解码的方法，所述数据流与包括由顶点和脊的组合定义的面的组合的基本网格相关联，并且具有对应于基本的局部修改的小波系数 网格，每个由基本网格的顶点索引。 对于数据流的至少一些小波系数，该方法包括以下步骤：确定承载小波系数的顶点的方位，称为小波系数的取向; 以及基于所述方向确定用于在所述基本网格中定位所述小波系数的至少一个子代的信息，将不同的定位规则与每个取向相关联，以便提取与所述小波系数中的至少一些小波系数相关联的数据流 每个都有定位信息。

公开(公告)号：US20070258650A1

公开(公告)日：2007-11-08

申请号：US11661029

申请日：2005-08-19

申请人： Isabelle Marchal ,  Christian Bouville ,  Loic Bouget

发明人： Isabelle Marchal ,  Christian Bouville ,  Loic Bouget

IPC分类号： G06K9/36

CPC分类号： G06T9/00

摘要： Non-adjacent rows (i) in the visibility matrix (Msr) that have a large number of common elements are automatically detected (E7) and any such detected rows are permutated to put the lines detected as having a large number of common elements into sequence to form a modified visibility matrix (M′sr), and digital image coding is applied (E8) to the Boolean elements of the modified visibility matrix (M′sr).

摘要翻译： 自动检测具有大量公共元素的可见矩阵（Msr）中的不相邻行（i）（E 7），并且任何这样检测的行被排列以将检测到的具有大量公共元素的行进入 序列以形成修改的可见性矩阵（M'sr），并且将数字图像编码（E 8）应用于修改的可见性矩阵（M'sr）的布尔元素。