Keywords
Citation
(2006), "Method and apparatus for machine-vision", Sensor Review, Vol. 26 No. 4. https://doi.org/10.1108/sr.2006.08726dad.011
Publisher
:Emerald Group Publishing Limited
Copyright © 2006, Emerald Group Publishing Limited
Method and apparatus for machine-vision
Keywords: Machine vision, Patents
Title: Method and apparatus for machine-visionApplicant: Braintech Canada Inc (CA)Patent number: US2006088203Publication date: 27 April 2006
A system and method facilitate machine- vision, for example, 3D pose estimation for target objects, using one or more images sensors to acquire images of the target object at one or more positions, and to identify features of the target object in the resulting images. A set of equations is set up exploiting invariant physical relationships between features such as constancy of distances, angles, and areas or volumes enclosed by or between features. The set of equations may be solved to estimate a 3D pose. The number of positions may be determined based on the number of image sensors, number of features identified, and/or number of known physical relationships between less than all features. Knowledge of physical relationships between image sensors and/or between features and image sensors may be employed. A robot path may be transformed based on the pose, to align the path with the target object.