Abstract: In a method for determining the 3D coordinates of an object a pattern (6) is projected onto the object (1) by a projector (3), the light reflected by the object (1) is captured by a camera (4), and the shots recorded by the camera (4) are evaluated. Reference marks (8) on and/or beside the object (1) are recorded by a reference camera (5). The reference camera (5) has a larger field of view (9) than the camera (4). To improve such method, the reference camera (5) is connected with the camera (4) or with a 3D sensor (2) which comprises the projector (3) and the camera (4).

Abstract: A tire testing apparatus for testing a tire comprises a loading means for the tire (17), a measuring head (20, 22, 24) which is movable relative to the tire (17), and lower bearing elements (7) on which the tire (17) can be positioned in vertical position. To improve such tire testing apparatus, the tire testing apparatus comprises upper bearing elements (8) which are movable relative to the lower bearing elements (7) and which together with the lower bearing elements (7) form a holder for the tire (17). (FIG.

Abstract: A scanner is used for scanning an object, in particular one or more teeth (13, 14, 15) or a dental cast. An improved scanner comprises a carrier (2) on which a plurality of projectors (4) for projecting a pattern onto the object and a plurality of cameras (5) for recording the object are provided one beside the other in an array.

Abstract: A tire inspection apparatus for the optical inspection of a tire (4) comprises a housing with a support surface (3) for the tire (4) to be inspected; several measuring heads (7, 8, 9, 10; 12, 13, 14, 15, 16, 17), each of which comprises an optical measuring system, for inspecting the inside tread surface (11) and/or the external lateral surface (18) of the tire (4); and a positioning device (21, 22, 23, 24) for moving some or all of the measuring heads (7-10; 12-17) into a rest position and into a measuring position. To improve a tire inspection apparatus of this type, the measuring heads (7-10; 12-17) and the support surface (3) are installed without freedom of rotation.

Abstract: In an improved method for the representation of the surface of an object, the actual 3D data (7) of the surface of the object are determined. The desired 3D data of the surface of the object are modified on the basis of the actual 3D data (7) of the surface of the object. The desired 3D data (5) of the surface of the object and the modified desired 3D data (5) of the surface of the object are used as the 3D representation data (FIG. 2).

Abstract: A method serves the detection of surface defects of a component. The surface of the component (5) is radiated from the side with light from a light source (4, 4?). The light radiated back from the surface of the component (5) is detected by a sensor. To improve such a method, only a rear region (19, 19?) of the surface of the component (5) is radiated with light from the light source (4, 4?) and/or only the light radiated back from a rear region (19, 19?) of the surface of the component (5) is detected by the sensor and/or evaluated by an evaluation device FIG. 3).

Abstract: A tire inspection apparatus for the optical inspection of a tire (4) comprises a housing with a support surface (3) for the tire (4) to be inspected; several measuring heads (7, 8, 9, 10; 12, 13, 14, 15, 16, 17), each of which comprises an optical measuring system, for inspecting the inside tread surface (11) and/or the external lateral surface (18) of the tire (4); and a positioning device (21, 22, 23, 24) for moving some or all of the measuring heads (7-10; 12-17) into a rest position and into a measuring position. To improve a tire inspection apparatus of this type, the measuring heads (7-10; 12-17) and the support surface (3) are installed without freedom of rotation.

Abstract: In a method for determining the 3D coordinates of an object a pattern (6) is projected onto the object (1) by a projector (3), the light reflected by the object (1) is captured by a camera (4), and the shots recorded by the camera (4) are evaluated. Reference marks (8) on and/or beside the object (1) are recorded by a reference camera (5). The reference camera (5) has a larger field of view (9) than the camera (4). To improve such method, the reference camera (5) is connected with the camera (4) or with a 3D sensor (2) which comprises the projector (3) and the camera (4).

Abstract: An improved apparatus for determining the 3D coordinates of an object (1) includes a projector (10) for projecting a pattern onto the object (1), a camera (11) connected to the projector (10) for taking the object (1), and a reference camera (16) connected to the projector (10) and to the camera (11) for taking one or more reference marks (6, 24) of a field (25) of reference marks (only FIGURE).

Abstract: This invention relates to a method and an apparatus for the three-dimensional digitization of objects with a 3D sensor, which comprises a projector and one or more cameras, in which a pattern is projected onto the object by means of the projector, and the pattern is detected with the one or more cameras. In accordance with the invention, the method and the apparatus are characterized in that at least three reference marks and/or a reference raster are projected onto the object with the 3D sensor and are detected with two or more external, calibrated digital cameras.

Abstract: In a method for 3D digitization of an object (1), a plurality of camera images of the object are recorded and assembled to determine the 3D coordinates of the object. To improve such method, pictures are taken from the object (1), from which 2D feature points (11, 12, 13; 21, 22, 23) of the object (1) are determined. The 3D coordinates of the 2D feature points are determined. The 2D point correspondences (32, 32, 22) between the 2D feature points of a picture and the 2D feature points of another picture are determined. Several of these 2D point correspondences are selected, and an associated 3D transformation is determined. The quality of this 3D transformation is determined with reference to the transformed 3D coordinates of the 2D feature points. Valid 3D feature points are determined therefrom. For assembling the camera images of the object (1), the 3D coordinates of the valid 3D feature points are used.

Abstract: The present invention relates to a method and a device for determining the spatial position of a sensor, in which a rough position information initially is determined by rough detection of the position of the sensor, and then the more accurate position of the sensor is obtained by measuring at least three reflectors mounted on the sensor with a laser tracker, wherein the search region of the laser of the laser tracker is limited for the reflectors with reference to the rough position information.

Abstract: In a method for the determination of the 3D coordinates of an object (2), a pattern is projected (1) onto the object (2) and the pattern reflected by the object (2) is taken (3) and evaluated. To improve such a method, a pattern is projected onto a first part region (12) of the object (2) in a first step and the pattern reflected by this part region (12) of the object (2) is taken. In a second step, a pattern is projected onto a second part region of the object (2) and the pattern reflected by this part region of the object (2) is taken. The patterns taken are evaluated.

Abstract: In a method of determining the 3D coordinates of the surface (1) of an object (2), the surface (1) of the object (2) is scanned by a scanner (3) for acquiring object data. The position and orientation of the scanner (3) for acquiring positional data are determined, in particular by a tracking system (4). The object data and the positional data are transferred to a controller (5) which determines the 3D coordinates of the surface (1) of the object (2) from them. To improve such a method, the object data are wirelessly transmitted from the scanner (3) to the controller (5).

Abstract: In an improved method for the representation of the surface of an object, the actual 3D data (7) of the surface of the object are determined. The desired 3D data of the surface of the object are modified on the basis of the actual 3D data (7) of the surface of the object. The desired 3D data (5) of the surface of the object and the modified desired 3D data (5) of the surface of the object are used as the 3D representation data (FIG. 2).

Abstract: In a method for detecting the deformation of objects (1), a sequence of pictures of the object (1) is taken with a measurement method during the deformation of the object (1). From the pictures, phase images are determined. To improve such method, there is formed the difference between the current phase image or the respective current phase image and the phase image of an initial state. This difference or these differences is/are evaluated and/or displayed on a visual display unit and/or stored.

Abstract: A tire testing facility used for testing tires includes a tire testing device with one or more testing heads (5) for testing the inner running surface (8) of the tire (1) and one or more testing heads (6, 7) for testing the outer sidewall (3, 2) side wall of the tire (1).

Abstract: A scanner is used for scanning an object, in particular one or more teeth (13, 14, 15) or a dental cast. An improved scanner comprises a carrier (2) on which a plurality of projectors (4) for projecting a pattern onto the object and a plurality of cameras (5) for recording the object are provided one beside the other in an array.

Abstract: A camera comprises a line sensor or an areal sensor (1) and an optical imaging system (2) for the projection of an image onto the sensor (1). To increase the resolution, a displacement device (6) is provided for the displacement of the image relative to the sensor (1) (FIG. 2).

Abstract: The present invention relates to a method and a device for determining the spatial position of a sensor, in which a rough position information initially is determined by rough detection of the position of the sensor, and then the more accurate position of the sensor is obtained by measuring at least three reflectors mounted on the sensor with a laser tracker, wherein the search region of the laser of the laser tracker is limited for the reflectors with reference to the rough position information.