Provided are a camera calibration device and a camera calibration system that can significantly reduce a burden on an operator associated with transport of calibration patterns or an operation of arranging calibration patterns in a calibration operation, and can significantly reduce the storage place for the calibration patterns. The device or system includes an image conversion unit 141 that converts an image captured by each camera based on a projection matrix for conversion into a bird's-eye viewpoint based on the initial parameters of each camera, thereby generating a converted image; an error evaluation unit 142 that calculates an error between a converted image of a reference camera selected from among the plurality of cameras and a converted image of a camera other than the reference camera; a projection matrix updating unit 143 that updates the projection matrix based on the error so that images of a common imaging area captured by the respective cameras match; and a camera parameter calculation unit 145 that calculates camera parameters including an external parameter related to the posture of each of the cameras with respect to the ground based on the updated projection matrix.
Camera Calibration Device, Camera Calibration System, and Camera Calibration Method
2016-06-23
Patent
Elektronische Ressource
Englisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G06K Erkennen von Daten , RECOGNITION OF DATA / G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen |
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