There is provided a photodetection circuit capable of improving distance measuring performance. [0002] The photodetection circuit according to an embodiment of the present disclosure includes: an avalanche photodiode; a charging circuit that supplies a voltage to the avalanche photodiode; an input…
The present description concerns a method comprising: a) for each pixel of a depth map: a1) acquire samples (100) and calculate a distance (102), and a2) define a window of N*N pixels (104) with this pixel at the center, N being an odd integer greater than or equal to 3; b) for each window: b1)…
A measurement system for determining geo-reference data for a measurement area includes a first system receiving a video stream and selecting images therefrom to correlate with geographic x, y coordinates of the measurement area. The system includes a second system (i.e., aerial platform) to hover…
An optical module includes: a carrier; an optical element disposed on the upper side of the carrier; and a housing disposed on the upper side of the carrier, the housing defining an aperture exposing at least a portion of the optical element, an outer sidewall of the housing including at least one…
A photodetection device according to the present disclosure includes: a light-receiving section including a light-receiving element, a first switch, a second switch, and a signal generator, the first switch that couples the light-receiving element to a first node by being turned on, the second…
A method of determining geo-reference data for a portion of a measurement area includes providing a monitoring assembly comprising a ground station, providing an imaging assembly comprising an imaging device with a lens operably coupled to an aerial device, hovering the aerial device over a…
A sensing element includes a plurality of sensing pixel areas arranged in matrix, wherein each of the plurality of sensing pixel areas includes a first pixel, a second pixel, a first shielding layer, a second shielding layer and at least one micro lens. The second pixel is adjacent to the first…
A digital counting and display system and methods for use with a laser rangefinder that counts backscattered laser beams and displays a distance between a laser and a target. The laser rangefinder includes a laser configured to emit a pulsed laser beam, an afocal Gallilean telescope configured to…
A lens assembly for display includes a display, a lens assembly, and a prism assembly. The display emits a first light beam. The lens assembly includes a first, second, and third lenses. The prism assembly includes a first, second prisms, and an optical multilayer film, wherein the first prism…
Es wird eine Kamera (10) zur Erfassung von relativ zu der Kamera (10) in einer Bewegungsrichtung (50) bewegten Objekten (48) angegeben, wobei die Kamera (10) einen Bildsensor (18) zur Aufnahme von Bilddaten der Objekte (48) in einem Kamerasichtfeld (14, 56), einen optoelektronischen Abstandssensor…
Method for estimating separation distances between a plurality of image sources in a multi-point source imaging system includes: receiving a plurality of light beams, each from a respective image source and having a quantum state mode; constructing a point spread function (PSF) for light beams…
A system may include one or more finger devices that gather input from a user's fingers. A finger device may include one or more self-mixing interferometric proximity sensors that measure a distance to the user's finger. The proximity sensor may measure changes in distance between the proximity…
An optical module includes: a carrier; an optical element disposed on the upper side of the carrier; and a housing disposed on the upper side of the carrier, the housing defining an aperture exposing at least a portion of the optical element, an outer sidewall of the housing including at least one…
A laser controller having an electronic distance measuring instrument and a laser light transmitter creating a vertical laser plane is used with a remote controller and a movable target for point layout tasks. The electronic distance measurer and laser transmitter are mounted on the same vertical…
A distance measurement system includes two or more line pattern generators (LPGs), a camera, and a processor. Each LPG emits a line pattern having a first set of dark portions separated by a respective first set of bright portions. A first line pattern has a first angular distance between adjacent…
A laser-based rangefinding instrument for, inter alia, golfing or hunting activities having an unique ergonomic design and an external multi-function switch for controlling display brightness, selectable display of differing distance units and a slope selection switch for enabling display of line…
An optical sensing system can be integrated into a camera module. In particular, an optical element of an optical sensing system can be disposed entirely or partly within a barrel of a camera module. The optical element can be oriented toward a reflective surface, such as an infrared cut filter…
A triangulation device for measuring a measurement object by a projection of a structured light pattern onto the measurement object. The triangulation device includes a projector projecting the structured light pattern decomposable into different spatial frequencies onto the measurement object. The…
A camera () for detecting objects () moving relative to the camera () in a direction of movement (), comprising an image sensor () for recording image data of the objects () in a camera field of view (), an optoelectronic distance sensor () using a time-of-flight method having a plurality of…
A sensing element includes a plurality of sensing pixel areas arranged in matrix, wherein each of the plurality of sensing pixel areas includes a first pixel, a second pixel, a first shielding layer, a second shielding layer and at least one micro lens. The second pixel is adjacent to the first…
A surveying device with a targeting unit carried by a support, the targeting unit being arranged rotatable relative to a vertical axis and a tilt axis as a first and a second axis of rotation, for emitting a distance measurement beam in an emission direction into free space, the emission direction…
An optical measurement system and method that utilizes a single camera in combination with a specially configured target object which significantly improves optical measuring accuracy with respect to the measurement of distance, height difference and position.
An automatic electronic rangefinder has a central processing unit determining whether the rangefinder is perpendicular or parallel to a horizontal plane; a ranging module electrically connected to the central processing unit to detect the distance to a first target object to be measured; an…
Estimation of the ground plane of a three dimensional (3D) point cloud based modifications to the random sample consensus (RANSAC) algorithm is provided. The modifications may include applying roll and pitch constraints to the selection of random planes in the 3D point cloud, using a cost function…
An optical sensing system can be integrated into a camera module. In particular, an optical element of an optical sensing system can be disposed entirely or partly within a barrel of a camera module. The optical element can be oriented toward a reflective surface, such as an infrared cut filter…
Estimation of the ground plane of a three dimensional (3D) point cloud based modifications to the random sample consensus (RANSAC) algorithm is provided. The modifications may include applying roll and pitch constraints to the selection of random planes in the 3D point cloud, using a cost function…
A multifunctional rangefinder capable of functioning as a rangefinder and at least one additional function. The multifunctional rangefinder comprises a laser transmitter for transmitting a laser pulse and an object lens, located at an inlet of the multifunctional rangefinder, for capturing light…
A range finding device (100) includes: a light projecting unit (11) mounted on a moving body, having an irradiation domain extending in a horizontal direction, and configured to project intensity-modulated irradiation light; an image capturing unit (12) mounted on the moving body, and configured to…
In one aspect of the present invention, a distance to an object in a monitoring area can properly be measured using a laser beam. A plurality of convex lens regions (d1-d9) are horizontally provided in a light exit surface of a light projection optical system (91) that projects a laser beam emitted…
A distance measurement method, includes measuring a distance to an object by means of a distance measurement circuit of a distance measurement apparatus and by scanning a light beam; designating a first mode which controls a projection angle of the light beam so that sampling positions in a given…