Reduce image blur due to motion by sight-line following

摘要

In order to online inspect the surface quality of fast moving plate material (such as aluminium or steel plate, textile, paper, etc) with image processing technique, one of the most troublesome problems is image blur due to motion. At motion speed<5m/s, shortening exposure or flashing time helps very little. We worked out a sight line following module on the base of a video camera/rotating mirror set to reduce blur to a minimum. Experiments on a prototype show that motion blur can be reduced to the order of 1/1000 of the view field of the camera.