Visual Servo Motion Control Study of Screw Holes Alignment

3D Motion and Shape Representations in Visual Servo Control

The study of visual navigation problems requires the integration of visual processes with motor control processes. Most essential in approaching this integration is the study of appropriate spatio-temporal representations which the system computes from the imagery and which serve as interfaces to all cognitive and motor activities. Since representations resulting from exact quantitative reconst...

Fundamentals of Servo Motion Control

Improving the transient response time generally means increasing the system bandwidth. Faster response times mean quicker settling allowing for higher machine throughput. Reducing the steady state errors relates to servo system accuracy. Finally, reducing the sensitivity to load parameters means the servo system can tolerate fluctuations in both input and output parameters. An example of an inp...

Adaptive Visual Servo Control

Adaptive servo visual robot control

Adaptive controllers for robot positioning and tracking using direct visual feedback with camera-in-hand configuration are proposed in this paper. The controllers are designed to compensate for full robot dynamics. Adaptation is introduced to reduce the design sensitivity due to robot and payload dynamics uncertainties. It is proved that the control system achieves the motion control objective ...

Performance Tests for Visual Servo Control Systems, with Application to Partitioned Approaches to Visual Servo Control

Visual servoing has been a viable method of robot manipulator control for more than a decade. Initial developments involved position-based visual servoing (PBVS), in which the control signal exists in Cartesian space. The younger method, image-based visual servoing (IBVS), has seen considerable development in recent years. PBVS and IBVS offer tradeoffs in performance, and neither can solve all ...