Image processing method for vision-based measure system of robot linear trajectory

The linear trajectory is one of major performance for industrial robot. A vision-based robots' linear trajectory measure system is introduced in this paper using a structure light and a special measure track. The three inflexions of the optical strip imaging at the V shape truck are used to compute the pose between the sensor frame and the track frame, then the linear trajectory of robot can be computed. The emphasis of this paper is the image processing. At this paper. the process of the image processing method for this system will be described at first. then the key methods include image segmentation and line fitting will be discussed, at last the experiment results will be given