A Note on Calibration of Video Cameras for Autonomous Vehicles with Optical Flow

Raúl Rojas, Ernesto Tapia – 2013

We show how to compute the extrinsic parameters of a video camera from the optical flow measured in consecutive video frames. We assume that the camera is mounted on a car or a robot which move forward and sideways on a flat area to acquire the images used for the calibration. The vanishing points of the optical flow lines provide enough information to compute the camera rotation matrix. We also show how the lines on the ground together with the vehicle's velocity provide enough iinformation to compute the camera position.

Titel
Calibration of Video Cameras
Verfasser
Raúl Rojas, Ernesto Tapia
Schlagwörter
Calibration, Video Cameras, Optical Flow
Datum
2013-02
Quelle/n
Erschienen in
Technical Reports - Serie B - Informatik, Fachbereich Mathematik und Informatik
Sprache
eng
Art
Text