公开(公告)号：US06398554B1

公开(公告)日：2002-06-04

申请号：US09331288

申请日：2000-01-27

申请人： Jean-Marc Perot ,  Michel Divet ,  Guy Rolet

发明人： Jean-Marc Perot ,  Michel Divet ,  Guy Rolet

IPC分类号： A61C510

CPC分类号： A61C5/77 ,  A61C5/73 ,  A61C13/0004 ,  G05B19/4207

摘要： A method for producing a dental prosthesis includes computer modeling of a three-dimensional prosthetic cap based on an human implantation zone. The method first includes casting an impression of the implantation zone of the human body. Then, on the basis of the moulded impression, a digital three-dimensional representation (R1) of the implantation zone is made by sensing the implantation zone with a sensor. From this, a digital representation (R1c) of the internal surface of the prosthesis is defined on the basis of the digital three-dimensional representation (R1) of the implantation zone. A digital three-dimensional representation (R2) of the external surface of the prosthesis is then defined on the basis of the surrounding parameters of the prosthesis and the digital three-dimensional representation (R1c). Then, a digital three-dimensional representation (R3) of the external surface of the cap is defined on the basis of the external (R2) and internal (R1c) surfaces of the prosthesis, taking into account the criteria of the mechanical and aesthetic characteristics which the cap must have. Based on this three-dimensional model, an actual prosthetic cap can be produced if the cap meets certain requirements.

摘要翻译： 用于制造牙科假体的方法包括基于人类植入区域的三维假体帽的计算机建模。 该方法首先包括铸造人体植入区域的印象。 然后，基于模制印模，通过用传感器感测注入区域来形成注入区域的数字三维表示（R1）。 由此，基于植入区域的数字三维表示（R1）来定义假体的内表面的数字表示（R1c）。 然后基于假体的周围参数和数字三维表示（R1c）来定义假体的外表面的数字三维表示（R2）。 然后，考虑到机械和美学特性的标准，基于假体的外部（R2）和内部（R1c）表面限定盖的外表面的数字三维表示（R3） 帽必须有。 基于这种三维模型，如果帽符合某些要求，则可以生产实际的假体帽。

公开(公告)号：US06327380B1

公开(公告)日：2001-12-04

申请号：US08809075

申请日：1998-06-25

申请人： Jacques Sciandra ,  Michel Divet ,  Guy Rolet

发明人： Jacques Sciandra ,  Michel Divet ,  Guy Rolet

IPC分类号： G06K900

CPC分类号： G01B11/24

摘要： Method for the correlation of three dimensional measurements obtained by at least one first (1) and one second (2) image capturing unit. The method comprises, for the calibration phase, the steps of: producing a calibrating ball (4) movably and rotatably mounted about an axis (7), successively and rotatingly shifting the calibrating ball (4) into the measuring positions which are visible to the acquisition units; measuring, for each of the measuring positions, the spherical cap seen by each of the image capturing units; determining, for each of the measuring positions, the center of the calibrating ball, to express the same reference frame in the first and second reference marks viewed by the first and second image capturing units respectively; calculating the matrix of the passage from the first reference mark to the second reference mark to correlate the measurements between the first and second optical image capturing units.

摘要翻译： 用于通过至少一个第一（1）和第二（2）图像捕获单元获得的三维测量的相关性的方法。 该方法包括以下步骤：对于校准阶段，产生一个可绕轴线（7）可移动和可旋转地安装的校准球（4），并将校准球（4）旋转地移动到测量位置 收购单位; 对于每个测量位置，测量由每个图像捕获单元看到的球形盖; 对于每个测量位置，确定校准球的中心，以分别在由第一和第二图像捕获单元观看的第一和第二参考标记中表示相同的参考帧; 计算从第一参考标记到第二参考标记的通道的矩阵，以使第一和第二光学图像捕获单元之间的测量值相关联。