A method with distance estimation includes detecting a pedestrian region of a pedestrian comprised in a plurality of images received from a camera; determining a static point in the detected pedestrian region; and determining a distance between the pedestrian and the camera based on the static point in each of the images and a position of the camera corresponding to each of the images.

Systems and methods for optically measuring a position of a measurement surface relative to a reference position. The system is a wireless network comprising a centrally located data acquisition computer and a multiplicity of remotely located sensor modules mounted at different locations within wireless communication range of a central receiver. Each sensor module is mounted to a clamp that is made specific to a control surface location and embedded with an RFID tag to denote clamp location. The optical components of the sensor modules are selected to enable indication of the linear position of a measurement surface relative to a reference position and then broadcast the measurement results. The broadcast results are received by the central receiver and processed by the data acquisition computer, which hosts human interface software that displays measurement data.

Depth mapping apparatus includes an illumination assembly, which directs modulated optical radiation toward a target scene, and a camera, which captures a two-dimensional image of the target scene. A range sensor senses respective times of flight of photons reflected from a matrix of locations disposed across the target scene. A processor derives first depth coordinates of the matrix of locations responsively to the respective times of flight, derives second depth coordinates of the matrix of locations responsively to a transverse disparity between features in the two-dimensional image and corresponding reference features in a reference image, computes a disparity correction function based on a difference between the first and the second depth coordinates at the matrix of locations, corrects the transverse disparity between the two-dimensional image and the reference image using the disparity correction function, and generates a depth map of the target scene based on the corrected transverse disparity.

A shape measurement method includes: acquiring first data of a change of a distance between a first probe and a calibration measurement object and acquiring second data of a change of a distance between a second probe and the calibration measurement object while moving the calibration measurement object in a first direction, the calibration measurement object being rotationally symmetric around an axis parallel to the first direction, the first probe and the second probe being arranged in a second direction orthogonal to the first direction; estimating an error of the movement included in the first data based on the first and second data; acquiring third data of a change of a distance between the first probe and a measurement object while moving the measurement object relative to the first probe in the first direction; and correcting the third data by using the error.

A transmission line monitoring system and central processing facility are used to determine the geometry, such as a height, of one or more conductors of a power transmission line and real-time monitoring of other properties of the conductors.

The present disclosure relates to a THz measuring device for measuring a measuring object and a THz measuring method for measuring a measuring object.

An ECU device which estimates a length of a lower limb of a seated person who is seated in a vehicle seat is shown. The ECU device includes the following. A thigh angle information obtainer obtains information regarding a thigh angle of the seated person. A back knee angle information obtainer obtains information regarding a back knee angle of the seated person. An estimator estimates the length of the lower limb of the seated person based on the information regarding the thigh angle obtained by the thigh angle information obtainer and information regarding the back knee angle obtained by the back knee angle information obtainer.

A chromatic range sensor (CRS) system is configured to provide an in-focus image of a workpiece surface including a measurement spot usable as a guide light. The system includes an optical pen having a chromatically dispersive lens configuration providing axial chromatic dispersion, and a reflected light dividing configuration (e.g., a beamsplitter) arranged to receive and divide reflected light from the workpiece surface into a measurement portion and an imaging portion. The optical pen includes a narrowband spectral filter and a camera. The CRS system includes a processing portion configured to measure a distance from the optical pen to the workpiece surface, and to make an adjustment so that the distance corresponds to a focus distance at which the workpiece surface is in focus when imaged by the light that passes through the narrowband spectral filter.

There is provided an imaging system including a camera and a control host. The camera identifies ambient light intensity and performs trigger event detection in a low power mode. When the camera detects a trigger event in the low power mode, the control host is woken up. The camera also determines an exposure mode according the ambient light intensity and informs the exposure mode to the control host such that an operating mode of the control host after being woken up matches the exposure mode of the camera.

An image capturing device comprising an image sensor. The image sensor comprises: a first sensing region, having a first sensing threshold; and a second sensing region, having a second sensing threshold lower than the first sensing threshold. At least one object image is determined to be invalid when the object image captured by the first sensing region has brightness formation lower the first sensing threshold. At least one the object image is determined to be invalid when the object image captured by the second sensing region has brightness formation lower the second sensing threshold. The present invention also discloses a distance measuring device using the image sensor.