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Proceedings ArticleDOI

Kernel machines for uncalibrated visual servoing of robots

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TLDR
The simulation results have shown that the robot visual servoing converges at the desired goal and KRLS is proved to be a better choice than SVR and LS-SVM Jacobian estimators.
Abstract
A new modelling method of image Jacobian estimation is presented for uncalibrated visual servoing of robots, in which a kernel recursive least squares (KRLS) technique is used for non-linear mapping between target image features and robot joint angles, and an image Jacobian expression is derived from the KRLS algorithm with gaussian kernel. The simulations of robot visual servoing with eye-in-hand camera configuration are conducted using the KRLS Jacobian estimator and the same are compared with SVR and LS-SVM Jacobian estimators. The simulation results have shown that the robot visual servoing converges at the desired goal and KRLS is proved to be a better choice.

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Journal ArticleDOI

An Uncalibrated Visual Servo Method Based on Projective Homography

TL;DR: An uncalibrated visual servo method based on projective homography, denoted as Projective Homography based Uncalibrated Visual Servoing (PHUVS), is proposed in this paper, in which a novel task function is devised to realize visual Servo without a prior knowledge of the camera intrinsic parameters and hand-eye relationships.
References
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Least Squares Support Vector Machine Classifiers

TL;DR: A least squares version for support vector machine (SVM) classifiers that follows from solving a set of linear equations, instead of quadratic programming for classical SVM's.
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A tutorial on visual servo control

TL;DR: This article provides a tutorial introduction to visual servo control of robotic manipulators by reviewing the prerequisite topics from robotics and computer vision, including a brief review of coordinate transformations, velocity representation, and a description of the geometric aspects of the image formation process.
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Visual servo control. I. Basic approaches

TL;DR: This paper is the first of a two-part series on the topic of visual servo control using computer vision data in the servo loop to control the motion of a robot using basic techniques that are by now well established in the field.
Journal ArticleDOI

The kernel recursive least-squares algorithm

TL;DR: A nonlinear version of the recursive least squares (RLS) algorithm that uses a sequential sparsification process that admits into the kernel representation a new input sample only if its feature space image cannot be sufficiently well approximated by combining the images of previously admitted samples.
Journal ArticleDOI

A robotics toolbox for MATLAB

TL;DR: The Robotics Toolbox is a software package that allows a MATLAB user to readily create and manipulate datatypes fundamental to robotics such as homogeneous transformations, quaternions and trajectories.
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