Abstract: A three-dimensional measuring system for measuring a three-dimensional shape of a measurement object in a noncontact manner includes a first obtaining portion for obtaining arrangement information of the measurement object, a second obtaining portion for obtaining design shape information of the measurement object, a fourth obtaining portion for obtaining specifics information about one or more three-dimensional measuring devices, a determining portion for determining a measurable part that can be measured by the three-dimensional measuring device about a surface shape of the measurement object in accordance with the obtained arrangement information, the obtained design shape information and the obtained specifics information, and an output portion for outputting the determined measurable part.

Abstract: 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.

Abstract: A three-dimensional measurement method is provided for measuring an object shape in a non-contact manner by using a non-contact sensor and a sensor moving mechanism that changes a position and a posture of the sensor and can operate by numerical control, moving the non-contact sensor in accordance with measurement path information indicating plural positions and postures of the sensor at the respective positions. The measurement path information is set in advance by teaching.

Abstract: 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.

Abstract: A three-dimensional measurement system comprises: a three-dimensional measuring device for obtaining measurement data related to the three-dimensional shape of a target object for measurement; a specification part for specifying a primitive of the target object based on annotation information contained in CAD data; and a controller for controlling the three-dimensional measuring device based on the primitive specified by the specification part.

Abstract: 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.

Abstract: An apparatus for obtaining data on the three-dimensional shape is provided with: a device for producing data on the three-dimensional shape of an object; a display device for displaying an image based on the data produced by the producing device; a viewpoint variator for changing a viewpoint of the image displayed on the display device; and a position changer for changing the relative positional relationship between the object and the producing device in accordance with the viewpoint change by the viewpoint variator.

Abstract: 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.

Abstract: A method and a device for editing a three-dimensional model are provided which facilitate processing and an operation for mapping in editing the three-dimensional model so as to edit the three-dimensional model easily. The method for editing a three-dimensional model in which texture images are mapped onto three-dimensional data including polygons includes extracting a vertex located at a seam portion between the texture images out of vertexes of the polygons as a seam vertex, storing the extracted seam vertexes in a vertex extraction list, and changing the vertexes other than the seam vertexes to modify the three-dimensional data without changing the seam vertexes stored in the vertex extraction list. With respect to the modified three-dimensional data, the original texture images are mapped.

Abstract: 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.

Abstract: 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.