Abstract: The invention relates to a method and a system for measuring an object (2) by means of stereoscopy, in which method a pattern (3) is projected onto the object surface by means of a projector (9) and the pattern (3), which is designated as a scene and is projected onto the object surface, is captured by at least two cameras (4.1, 4.2, 4.3, 4.4), wherein correspondences of the scene are found in the images captured by the cameras (4.1, 4.2, 4.3, 4.4) by means of a computing unit (5) using image processing, and the object (2) is measured by means of the correspondences found. According to the invention, the cameras (4.1, 4.2, 4.3, 4.4) are intrinsically and extrinsically calibrated, and a two-dimensional and temporal coding is generated during the pattern projection, by (a) projecting a (completely) two-dimensionally coded pattern (3) and capturing the scene using the cameras (4.1, 4.2, 4.3, 4.

Abstract: A method and a device for the inspection of surfaces of an examined object includes illuminating a the surface using an illumination unit and capturing an image of the surface using an area image sensor. The captured images are forwarded to an image analysis unit configured to ascertain surface anomalies as defect areas and delimit, if required, the defect areas in a segmentation relative to one another or against the image background, to summarize defect areas belonging together in a regional analysis, to derive characteristic defects from defect areas or defect regions in a feature extraction or both.

Abstract: The invention proposes an optical monitoring device for monitoring the activity of a tool in a monitoring area, having at least one camera (1). In order to improve the capture of the lateral regions of a three-dimensional object in the monitoring area (20), at least one mirror (2) is provided that is concavely bent in at least one partial region and that is disposed in the optical path between the monitoring area (20) and the camera (1).

Abstract: A method and a device for the inspection of surfaces of an examined object includes illuminating a the surface using an illumination unit and capturing an image of the surface using an area image sensor. The captured images are forwarded to an image analysis unit configured to ascertain surface anomalies as defect areas and delimit, if required, the defect areas in a segmentation relative to one another or against the image background, to summarize defect areas belonging together in a regional analysis, to derive characteristic defects from defect areas or defect regions in a feature extraction or both.

Abstract: A method for calibrating a measuring system uses at least one camera for determining the position of an object in a reference three-dimensional coordinate system. The external and internal parameters of the camera are calibrated in various steps and the position of the camera is determined with the aid of external measuring means in accordance with three steps. In the first step, the internal camera parameters are ascertained and fixedly assigned to the internal camera. In a second step, the position of the internal camera in the measuring system is determined. In a third step, the orientation of the internal camera is ascertained in the reference three-dimensional coordinate system by evaluating camera images.

Abstract: A system for the optical inspection of glass panels (2) is described, with a conveying device (3) for moving a glass panel (2), and with a first inspection module (5, 6, 7), which includes an illumination device and a camera for illuminating and photographing the glass panel (2), and with a first evaluation module (8, 9, 10, 11) for evaluating the photographs of the glass panel (2). In addition, a second inspection module (5, 6, 7) is provided, which includes an illumination device or a camera for illuminating the photograph of the glass panel (2), and it is connected with a second evaluation module (8, 9, 10, 11) for evaluating the photographs taken of the glass panel, the illumination systems and/or the cameras of the first inspection module (5, 6, 7) and the second inspection module (5, 6, 7) having different designs and/or being located in different places relative to the glass panel (2), which is moved past the inspection modules (5, 6, 7) via the conveying device.

Abstract: An apparatus and a method for examining a curved surface (5), having a camera (2) and an objective (3) and a lamp (4), is described. The camera (2) can be aimed at the inside of the curved surface (5), and the lamp (4) can be located such that light (7) emitted by the lamp (4) is reflected from the inside of the curved surface (5) into the camera (2). To attain high contrast with a simple arrangement, the lamp (4) is located in the beam path of the objective (3) of the camera (2).

Abstract: The invention relates to a sensor for measuring the surface of an object, having a contrasting unit (3) for projecting a pattern onto the surface of the object, and having a camera (4) for recording of the pattern projected onto the surface of the object, in which the contrasting unit (3) has an LED projector (5). To achieve high precision and great robustness, the camera (4) and the LED projector (5) are located in the longitudinal direction. In addition, respective deflecting mirrors (8, 11) are assigned to the camera (4) and the LED projector (5) and are located on opposite ends, in the longitudinal direction of the sensor (1), of the housing (2) of the sensor (1).