Measurement system, image correction method, and computer program

摘要

A measurement system includes an illumination unit, imaging unit, acquisition unit and correction unit. A measurement target is irradiated with illumination light. The imaging unit captures an image of light reflected by or transmitted through the measurement target. The acquisition unit acquires positional relationship information representing a positional relationship between the illumination unit and the measurement target and between the imaging unit and the measurement target. The correction unit corrects a luminance of at least one of the illumination light emitted by the illumination unit and the captured image based on the positional relationship information in such a way as to correct a luminance change of the measurement target image, wherein at least two of the measurement target, the illumination unit, and the imaging unit are variable in spatial position.

主权项

1. A measurement system comprising:
an illumination unit configured to irradiate a measurement target with illumination light; an illumination control unit configured to control an operation of the illumination unit; a first robot hand configured to calibrate a position of the illumination unit; an imaging unit configured to capture an image of the irradiated measurement target; a second robot hand configured to calibrate the position of the imaging unit; an imaging control unit configured to control an operation of the imaging unit; an acquisition unit configured to acquire positional relationship information representing a positional relationship between the illumination unit and the measurement target and a positional relationship between the imaging unit and the measurement target after calibration of the first robot hand and the second robot hand; and a correction unit configured to correct a luminance intensity of the irradiated measurement target image captured by the imaging unit by changing a luminance of the illumination light emitted by the illumination unit based on the positional relationship information and reflectance of the irradiated measurement target and correct a luminance distribution of the image captured by the imaging unit based on the positional relationship information; and a measurement unit configured to measure a position and an orientation of the measurement object, based on the image of the irradiated measurement target.