Continental Automotive Gmbh

Application Solutions (electronics and Vision) Ltd.

Dave Wibberley

Pantelis Ermilios

Lingjun Gao

Heba Khafagy

Peter Bone

Eric Hantsch

Ian Saward

Peter Gagnon

Simon Rafferty

A method for deriving extrinsic camera parameters of a vehicle camera. Calibration markers are provided on a flat ground surface and the vehicle is driven past the calibration markers. Marker boundaries are detected and matched to stored pre-determined shape parameters and a marker shape is identified. At least one extrinsic parameter of the camera is derived using the tracked positions of identified marker shape in the video sequence captured while vehicle is moving, wherein the extrinsic parameter is selected from mounting positions and a rotation is selected from both horizontal axis and vertical axis of a vehicle coordinate system.

Drive-by calibration from static targets

A camera mounted on or for a vehicle has camera rotational parameters &#x3c6;, &#x3b8;, &#x3c8; and camera translational parameters x, y, zin a camera image coordinate system, and the vehicle has a vehicle coordinate system. A method for online or on-the-fly calibration of the camera involves two independent steps, namely while the vehicle is moving relative to the ground, calibrating the camera rotational parameters using a parallel geometrical calibration process, and calibrating at least some of the camera translational parameters x, yindependently of the camera rotational parameters.

System, vehicle and method for online calibration of a camera on a vehicle

Growing community of inventors

Brighton, United Kingdom

Dave Wibberley