Needle Insertion Path Decision by Visual Servo Control

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 ...

A Switching Approach to Visual Servo Control

In the recent past, many researchers have developed control algorithms for visual servo applications. In this paper, we introduce a new switching approach, in which a high-level decision maker determines which of two lowlevel visual servo controllers should be used at each control cycle. We introduce two new low-level controllers, one that relies on the homography between initial and goal image...

Visual Servo Control of Industrial Robot Manipulator

This paper presents an image-based visual servo controller for an industrial robot. The simple structure controller is based on a transposed Jacobian which feeds back directly the image feature errors and the joint velocities. Under these hypotheses, the control algorithm does not need to use the inverse kinematics and the inverse jacobian matrix. Experimental results in two different industria...