Title :
Comparing Optical Flow Algorithms Using 6-DOF Motion of Real-World Rigid Objects
Author :
Mammarella, Marco ; Campa, Giampiero ; Fravolini, Mario L. ; Napolitano, Marcello R.
Author_Institution :
GMV Aerosp. & Defence, Space Syst. B.U., Tres Cantos, Spain
Abstract :
The application of optical flow algorithms to guidance and navigation problems has gained considerable interest in recent years. This paper summarizes the results of a comparative study on the accuracy of nine different optical flow (OF) algorithms using videos that are captured from an on-board camera during the flight of an autonomous aircraft model. The comparison among the algorithms relies on two formulas that are used both to calculate the ideal OF generated by the motion of a rigid body in the camera field of view and to estimate the linear and angular velocity from the OF.
Keywords :
angular velocity; image motion analysis; image sequences; video cameras; video signal processing; 6-DOF motion; OF algorithm; angular velocity estimation; autonomous aircraft model flight; camera field-of-view; guidance problem; linear velocity estimation; navigation problem; on-board camera; optical flow algorithm; real-world rigid object; rigid body motion; video; Angular velocity; Feature extraction; Mathematical model; Optical flow; Optical imaging; Vectors; Computer vision; image processing; machine vision; optical flow (OF);
Journal_Title :
Systems, Man, and Cybernetics, Part C: Applications and Reviews, IEEE Transactions on
DOI :
10.1109/TSMCC.2012.2218806
