The techniques described herein relate to methods, apparatus, and computer readable media configured to determine parameters for image acquisition. One or more image sensors are each arranged to capture a set of images of a scene, and each image sensor comprises a set of adjustable imaging parameters. A projector is configured to project a moving pattern on the scene, wherein the projector comprises a set of adjustable projector parameters. The set of adjustable projector parameters and the set of adjustable imaging parameters are determined, based on a set of one or more constraints, to reduce noise in 3D data generated based on the set of images.

A triangulation scanner system and method of operation is provided. The system includes a projector that alternately projects a pattern of light and no light during first and second time intervals. A camera includes a lens and a circuit with a photosensitive array. The camera captures an image of an object. The photosensitive array has a plurality of pixels including a first pixel. The first pixel including an optical detector and a first and second accumulator. The optical detector produces signals in response to a light levels reflected from a point on the object. The first accumulator sums the signals during the first time intervals to obtain a first summed signal. The second accumulator sums the signals during the second time intervals obtain a second summed signal. A processor determines 3D coordinates of the point based on the projected pattern of light and on the first and second summed signals.

Systems, devices, and techniques related to matching features between a dynamic vision sensor and one or both of a dynamic projector or another dynamic vision sensor are discussed. Such techniques include casting a light pattern with projected features having differing temporal characteristics onto a scene and determining the correspondence(s) based on matching changes in detected luminance and temporal characteristics of the projected features.

A system for capturing a 3D image of a subject includes a detection device which is structured to capture images of the subject and surrounding environment, a projection device which is structured to provide a source of structured light, and a processing unit in communication with the detection device and the projection device. The processing unit is programmed to: analyze an image of the subject captured by the detection device; modify one or more of: the output of the projection device or the intensity of a source of environmental lighting illuminating the subject based on the analysis of the image; and capture a 3D image of the subject with the detection device and the projection device using the modified one or more of the output of the projection device or the intensity of the source of environmental lighting illuminating the subject.

Aspects of the present disclosure provide a system for measuring an object, the system including a plurality of frame segments. The frame segments are configured to mechanically couple together to form a frame. The plurality of frame segments includes a plurality of measurement device link segments and each of the plurality of measurement device link segments includes a measurement device which together form a plurality of measurement devices having a field of view within or adjacent to the frame. Each of the plurality of measurement devices is operable to measure three-dimensional (3D) coordinates for a plurality of points on the object. The system further includes a computing device to receive data from the plurality of measurement devices via a network established by the plurality of measurement device link segments.

The present disclosure discloses a system, a method and a device for generating depth image. The system includes an illumination source, an optical system, a control device, and at least one set of a dynamic aperture and an image sensor, wherein the dynamic aperture is configured to dynamically change a light transmittance, an exposure start time, and an exposure end time under a control of the control device. The control device is configured to acquire a first photo and a second photo, and generate a depth image of the target scene according to the first photo, the first shooting configuration information, the second photo, and the second shooting configuration information.

A highly efficient three-dimensional image acquisition method based on multi-mode composite encoding and epipolar constraint, respectively using a fast imaging mode or a high-precision imaging mode, wherein in the fast imaging mode, two phase maps having different frequencies are obtained by four stripe gratings, and a high-frequency absolute phase is obtained by means of the epipolar constraint and a left-right consistency check, and the three-dimensional image is obtained by means of a mapping relationship between the phase and three-dimensional coordinates; and in the high precision imaging mode, two phases having different frequencies are obtained by means of N+2 stripe gratings, a low-frequency absolute phase is obtained by the epipolar constraint, and the unwrapping of a high-frequency phase is assisted by means of the low-frequency absolute phase, so as to obtain the high-frequency absolute phase, and finally, the three-dimensional image is obtained by the mapping relationship between the phase and the three-dimensional coordinates. In this way, the imaging efficiency is ensured, and the imaging precision is improved.

Imaging system based on light triangulation for capturing information on three dimensional characteristics of an object by means of one or more cameras. A calibration target object is within respective field of view of said cameras so that the cameras are able to detect light reflected from a surface structure of the calibration target object comprising one or more regular right pyramidal recesses and one or more regular right pyramids, with their respective bases in the same plane and their respective apexes at the same orthogonal distance from that same plane. The base of at least one of said regular right pyramidal recesses shares at least one side with the base of at least one of said regular right pyramids, such that each pair of lateral faces sharing side are located in a common plane.

The invention concerns a method of determination of a three-dimensional image of an object (Board), including the projection of a plurality of first images onto the object, each first projected image including first light patterns spaced apart by a first period; the acquisition, for each first projected image, of a first two-dimensional image of the object; the projection of a plurality of second images onto the object, each second projected image including second light patterns spaced apart by a second period different from the first period; the acquisition, for each second projected image, of a second two-dimensional image of the object; and the detection of a translucent area of the object by comparison of first signals obtained from the first images and of second signals obtained from the second images, and, for the translucent area, the determination of each point of the translucent area based on the first and second signals.

The subject disclosure relates to a tracking system to mount to an aircraft and to image and track a target aircraft. The tracking system may include a structured light source operatively coupled to a processor, an inertial measurement unit (IMU) operatively coupled with the processor, a mirror to steer light from the light source toward the target aircraft, and a stereo-vision system having a first camera and a second camera. The IMU may be configured to generate position data representing a position of the aircraft. The stereo-vision system may be operatively coupled to the processor and configured to determine a 3D position of the target aircraft as a function of the position data. The processor may be configured to adjust the mirror position as a function of a mirror position.