Device for monitoring objects, evaluates image coarsely to determine displacement relative to last image of monitored object, evaluates more accurately if image offset greater than maximum

摘要

The monitoring device has an image acquisition device (4) and an image processor (13) that first conducts a coarse image evaluation of the acquired images to determine the displacement with respect to the last image of the monitored object (1), then evaluates an image with an offset greater than a defined maximum value more accurately.