  For many computer vision applications, the availability of camera calibration
data is crucial as overall quality heavily depends on it. While calibration
data is available on some devices through Augmented Reality (AR) frameworks
like ARCore and ARKit, for most cameras this information is not available.
Therefore, we propose a web based calibration service that not only aggregates
calibration data, but also allows calibrating new cameras on-the-fly. We build
upon a novel camera calibration framework that enables even novice users to
perform a precise camera calibration in about 2 minutes. This allows general
deployment of computer vision algorithms on the web, which was previously not
possible due to lack of calibration data.
