Title
Robust Contact Detection In Micromanipulation Using Computer Vision Microscopy
Abstract
This paper presents a computer vision algorithm for visually detecting the contact between an end-effector and a target surface under an optical microscope. Without using additional sensors (e.g., proximity or force/touch sensors), this algorithm provides robustness and a sub-micrometer detection resolution. Fundamentally, after the establishment or a contact in the world frame, further vertical motion induces horizontal motion in the image plane. An analysis is presented to elaborate this fundamental mechanism. Experimental results demonstrate that this coniputer-vision-based method is capable of achieving contact detection between a inicropipette and a glass slide surface with a resolution of 0.2 mu m. Furthermore, 1300 experimental trials reveal that the presented algorithan is robust to variations in illumination intensitY, nucroscopy magnification, and microrobot motion speed.
Year
DOI
Venue
2006
10.1109/IEMBS.2006.260806
2006 28TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOLS 1-15
Keywords
DocType
Volume
computer vision,end effectors,end effector,micropipette,optical microscopy,optical microscope,image plane
Conference
1
ISSN
Citations 
PageRank 
1557-170X
1
0.40
References 
Authors
3
3
Name
Order
Citations
PageRank
Wenhui Wang19219.23
Xinyu Liu214522.92
Yu Sun341869.89