Passivity-based Control of Visual Feedback Systems with Dynamic Movable Camera Configuration

This paper deals with control of visual feedback systems with a dynamic movable camera configuration. This configuration consists of a robot manipulator and a camera that is attached to the end-effector of another robot manipulator. Firstly the brief summary of the dynamic visual feedback system with an eye-in-hand configuration is given with the fundamental representation of a relative rigid body motion. Secondly we construct the visual feedback system with a dynamic movable camera configuration by combining the hand control error system. Next, we derive the passivity of the dynamic visual feedback system. Based on the passivity, stability and L2-gain performance analysis are discussed. Finally the validity of the proposed control law can be confirmed by comparing the experimental results.