Tracking vision system of mobile robots

In the paper using of vision system to following of position and orientation of mobile robots is presented. Description of the experimental setup is introduced. Two methods of determining mobile robot position and orientation are presented. They are based on two different robot labeling patterns. The first one makes extensive usage of markers, which have individual shape and color. The second method uses four LED diodes placed at the corners of the robot upper surface. The diodes are the active light source. The methods of image processing are also described. Both algorithms of the image processing which extract desired features are also presented. Finally, two applications examples of such measurements information in the control system of the mobile robot or group of mobile robots is presented.