The present disclosure relates to a three-dimensional scanning system configured to obtain three-dimensional data of a scanned object. The three-dimensional scanning system includes at least one projector configured to project a feature image of a first waveband to the scanned object, and the feature image includes multiple key features. A scanner includes a projection module configured to emit scanning light of a second waveband to a surface of the scanned object, and the first waveband is not interfere with the second waveband. A first collecting module is configured to collect the feature image projected to the scanned object, and obtain three-dimensional data of the key features projected to the surface of the scanned object. A second collecting module is configured to collect the scanning light of the second waveband reflected by the scanned object, and obtain dense three-dimensional point cloud data on the surface of the scanned object.

Methods and systems for determining the integrity of a manufactured board are disclosed. An example system includes a testing platform configured to secure the manufactured board, a sensor configured to measure a parameter corresponding to a flatness of a surface of the board, and a controller. The controller is configured to identify regions on the surface corresponding to one of a peak or a valley based on the parameter, and calculate a score representing the integrity of the manufactured board based on the identified peaks and valleys. The controller adjusts a flow rate, a pressure, a temperature, and position of a deposited substance in a manufacturing process based on a comparison with a height of the peak and/or a depth of the valley to stored peak heights and/or valley depths. In some examples, a mechanical tester determines a compressive strength and a density of die board at the identified regions.

A vision system capable of performing run-time 3D calibration includes a mount configured to hold an object, the mount including a 3D calibration structure; a camera; a motion stage coupled with the mount or the camera; and a computing device configured to perform operations including: acquiring images from the camera when the mount is in respective predetermined orientations relative to the camera, each of the acquired images including a representation of at least a portion of the object and at least a portion of the 3D calibration structure that are concurrently in a field of view of the camera; performing at least an adjustment of a 3D calibration for each of the acquired images based on information relating to the 3D calibration structure as imaged in the acquired images; and determining 3D positions, dimensions or both of one or more features of the object.

Method for checking the surface and/or shape of at least one surface, or part thereof, of an object made of transparent material, by means of a checking system which comprises a light source, a sensor and a processing unit connected to the sensor. By an appropriate positioning of the light source and sensor it is possible to overcome the problem of multiple reflections and to identify in a unique manner the rays scattered from the surface to be checked and received by the sensor which are useful for the purposes of checking. According to one of the embodiments, it is also possible to determine the thickness of the object to be checked.

A profilometer provides, to a controller, a feedback signal indicative of topography of an exposed surface of an object that is being manufactured by a 3d printer. The profilometer includes an emitter and a camera. The emitter illuminates a region of surface of the object with a pattern having an edge that defines a boundary of an illuminated portion of the surface. The camera receives an image that transitions between a first state in which the edge is visible in the image at a location that is indicative of the surface's depth and a second state in which the edge is not visible at all. From this second state, the controller obtains information representative of a depth of the surface.

A coherent beam moves across a stationary line generator, allowing the speckle pattern projected through the diffuser onto the surface—for example using a MEMS mirror, or another arrangement that is free of a moving mass, such as solid state beam deflector (e.g. an AOM). Where an image sensor is employed, such as a DS, the beam is moved at a speed of at least ½ cycle per image frame so that the full length of the line within the imaged scene is captured by the image sensor. The distance traversed on the diffuser provides sufficient uncorrelated speckle patterns within an exposure time to average to a smooth line. The MEMS mirror can be arranged to oscillate in two substantially orthogonal degrees of freedom so that the line is generated along a first direction and the line moves along the working surface in a second direction.

The optical displacement meter generates, from each position of a plurality of pixel rows in a U direction and a peak position in a V direction, a plurality of profiles of the X-Z cross section, and measures a three-dimensional shape of the measuring object based on the plurality of profiles acquired at different positions in the Y direction. The optical displacement meter determines, based on whether a profile exists in a blind spot region in which it is impossible to measure a height which occurs in a Y-Z cross section corresponding to an angle formed between a light projecting axis of a light projecting section and a light receiving axis of an image sensor based on a principle of triangulation, a part of the three-dimensional shape generated by a measuring unit as an erroneous detection value.

A device is proposed for the contactless three-dimensional inspection of a blade (5) for a turbomachine, comprising: means for scanning the teeth, comprising at least one first pair of laser measurement modules (2A, 2B) and means for the rotational driving, about the main axis, of the blade relative to the modules along the main axis of the blade; means for the rebuilding of a three-dimensional virtual representation of the blade using data coming from said scanning means; means of dimensional inspection using the three-dimensional representation; each pair of modules comprising a first module (2A) oriented towards a first face of a tooth and a second module oriented towards a second face of a tooth;
the modules being oriented relative to the blade so that during a rotation of the blade about the main axis, the scanning means scan the first and second faces of the blade on the entire rim of said blade, and so that during a translation of the blade along the main axis, said scanning means scan the first and second faces of the blade throughout their height.

A checking method and line for checking a tyre for vehicle wheels. The tyre is associated with a model associated with a setting for image acquisition devices. Once the model is obtained, preliminary images of the tyre are acquired, from which at least one adjustment value representative of at least one geometric characteristic of the tyre is obtained. A deviation between the at least one adjustment value and a respective reference value associated with the model is then calculated. The setting associated with the model of tyre is then adjusted based on the calculated deviation and the tyre is then inspected to look for possible production defects by acquiring images of at least part of the surface of the tyre using the image acquisition devices, set according to the adjusted setting.

A mobile and automated apparatus for the detection and classification of damages on the body of a vehicle, specifically meaning by “damage” a dent or a depression on the vehicle body caused by pressure applied on such body by an external object (hail-stone or other), characterized in that it comprises a support structure defining a passage area for a motor vehicle having a body; the support structure comprises: lighting means adapted to project a grid pattern on the surfaces of the body, speed sensor means adapted to measure the speed of the vehicle, distance sensor means adapted to measure the distance of the body surfaces from the support structure, and image recording means adapted to capture moving images of the pattern reflected by the surfaces; the apparatus comprises a unit processing the moving images of the pattern reflected by the surfaces and captured by the image recording means, and simultaneously processing the signals from the sensor means of distance and speed, in order to detect, count, classify and record damages on the car body.