Versatile visual servoing without knowledge of true Jacobian

نویسندگان

  • Koh Hosoda
  • Minoru Asada
چکیده

In this paper, we propose a versatile visual servo-ing control scheme with a Jacobian matrix estimator. The Jacobian matrix estimator does not need a priori knowledge of the kinematic structure and parameters of the robot system, such as camera and link parameters. The proposed visual servoing control scheme ensures the convergence of the image-features to desired trajectories, by using the estimated Jacobian matrix, which is proved by the Lyapunov stability theory. To show the effectiveness of the proposed scheme, simulation and experimental results are presented.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Robust Uncalibrated Visual Servoing for Autonomous On-Orbit-Servicing

Camera-type vision sensors are typically used in highly calibrated settings in On-Orbit-Servicing (OOS) missions. This is a limitation to autonomously service targets without specific markers. In addition, the harsh conditions of space demands a versatile algorithm that is robust to different types of visual errors. In this paper, we propose robust uncalibrated visual servoing scheme for OOS. U...

متن کامل

Image based autodocking without calibration

The calibration requirements f o r visual servoing can make it di f icul t to apply in m a n y real-world situations. One approach t o image-based visual servoing without calibration is to dynamically estimate the image Jacobian and use at as the basis for control. However, wath the normal motion of a robot towards the goal, the estimation of the image Jacobian deteraorates ouer t ime. W e prop...

متن کامل

RobotCub : Development of a cognitive humanoid cub

In this paper, the coupling between Jacobian learning and task sequencing through the redundancy approach is studied. It is well known that visual servoing is robust to modeling errors in the jacobian matrices. This justifies why jacobian estimation does not usually degrade the system convergence. However, we show that this is not true anymore when the redundancy formalism is used. In this case...

متن کامل

Acquiring Visual-Motor Models for Precision Manipulation with Robot Hands

Dextrous high degree of freedom (DOF) robotic hands provide versatile motions for fine manipulation of potentially very different objects. However, fine manipulation of an object grasped by a multifinger hand is much more complex than if the object is rigidly attached to a robot arm. Creating an accurate model is difficult if not impossible. We instead propose a combination of two techniques: t...

متن کامل

A Study on Visual Feedback Control of a Dual Arm Robot with Eight Joints

Visual servoing is the fusion of results from many elemental areas including high-speed image processing, kinematics, dynamics, control theory, and real-time computing. It has much in common with research into active vision and structure from motion, but is quite different from the often described use of vision in hierarchical task-level robot control systems. We present a new approach to visua...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1994