<?xml version="1.0" encoding="utf-8"?>
<?xml-stylesheet href="client.xsl" type="text/xsl"?>
<article article-type="other">
<front>
<journal-meta>
<journal-id/>
<issn/>
<banner>
<href>banner.jpg</href>
<size width="100%"/>
</banner>
</journal-meta>
<article-meta>
<doi>031</doi>
<title-group>
<article-title>Uncalibrated Vision-Based Control for Optical Manipulation of Microscopic Particles</article-title>
</title-group>

<author>X. Li<sup>a</sup> and C. C. Cheah<sup>b</sup>  </author>

<aff>School of Electrical and Electronic Engineering, Nanyang Technological University. </aff>

<email><a href="mailto:ecccheah@ntu.edu.sg"><sup>a</sup>ecccheah@ntu.edu.sg</a></email>

<email><a href="mailto:li.xiang@ntu.edu.sg "><sup>b</sup>li.xiang@ntu.edu.sg </a></email>

</article-meta></front>
<body>
<abstract>
<title>ABSTRACT</title>
<p>Vision is a useful information for manipulation tasks since it provides a large spectrum of details about the environment. The visual feedback information can be used to guarantee the manipulation accuracy and improve robustness to uncertainty. In this paper, a vision-based adaptive control method is proposed for micromanipulation using optical tweezers. A general model of robotic manipulator is introduced in the optical tweezers system so that the movement of the laser beam is controlled by vision-based closed-loop robotic manipulation techniques. A new adaptive Jacobian controller is proposed for the regulation problem in presence of camera calibration errors. The stability of the closed-loop system is analyzed with consideration of the dynamics of both the particle and the robotic manipulator. Simulations are presented to illustrate the performance of the proposed method. </p>
</abstract>
<fpdf>
<href>pdflogo.jpg</href>
<hpdf>031</hpdf>
</fpdf>
</body>
</article>
