Sick Ivp Ab

Daniel Rydström

Method and device(s) for provision of a pair of real world and image sensor correspondence points for use in calibration of an imaging system () for three dimensional imaging based on light triangulation. Said real world point (--) being provided () as a first virtual intersection between a first real world line () and a second real world line (). Said image sensor point (--) being provided () as a second virtual intersection between a first image line () and a second image line (). A first image () by the imaging system comprises captured light that images the first real world line () and a second image () by the imaging system comprises captured light that images the second real world line (). The first image line () corresponds to positions of intensity peaks of said captured light in the first image () and the second image line () corresponds to positions of intensity peaks of said captured light in the second image ().

Provision of real world and image sensor correspondence points for use in calibration of an imaging system for three dimensional imaging based on light triangulation

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.

Growing community of inventors

Linköping, Sweden

Daniel Rydström