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In Dec. 2006, Anbu moved to HP Labs in India, as a Research Scientist.
Earlier, he was a postdoctoral associate in the ECE department at Virginia Tech from Sep. 2005 to Nov. 2006.
He got his Ph.D. and M.S. degrees in Electrical Engineering from Virginia Tech in 2005 and 2001 respectively.
Before coming to Virginia Tech, he worked for IBM from 1996 to 1999.
In the summer of 2001, he worked as a Member of Technical Staff (Intern) in the Human Computer
Interaction Group at Rockwell
Scientific (formerly Rockwell Science Center).
His research interests include computer vision, signal and
image processing, biomedical image analysis and pattern recognition.
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Research
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In
his post-doctoral work, Anbu was involved in the design of a new
omni-directional vision based navigation, localization and mapping
(SLAM)
system for aquatic environments (river, lake, sea) using an autonomous
surface vehicle (ASV).
Images on the right show the ASV used in his work, sample image from
the omni-directional camera, result of the image analysis and a local
map built and overlaid on the corresponding topographic map. He worked
with Dr. Chris Wyatt and in collaboration with the
Autonomous Systems and Control group
at Virginia Tech.
Some applications of this work are autonomous navigation, surveillance and environment mapping.
In his Ph.D. research, Anbu created a prototype
of a novel layer extraction and image compositing system.
The system he developed can extract a matte for image compositing,
from planar image layers of a stationary scene using only two-dimensional (2D)
images from a single, stationary camera. Parallax present in the images is
exploited in the layer extraction and segmentation process. Potential
applications of this reseach include image compositing (video matting),
passive range estimation, video content manipulation and
video compression. He also completed a study on robust statistical methods
for circle and ellipse fitting. His advisor was
Prof. A. Lynn Abbott,
director of the Computer Vision Group at
Virginia Tech.
The research towards his M.S.
focussed on developing a novel method of image segmentation and range
estimation, from 2D images using a single camera. More information is available in
his paper published in ICCV 2001.
Anbu's research in his M.S. and Ph.D.
led to the creation of two intellectual properties (IP) for Virginia Tech.
In 2005, the Graduate School at Virginia Tech recognized him with an
Honorable Distinction for Innovation in research and an award
for Outstanding Research Achivements in the Annual Research Symposium
of Virginia Tech. Earlier in 2001, he received an award in Honor of
Outstanding Research Achievements, also in the Annual Research
Symposium.
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Teaching
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Anbu taught undergraduate labs in the Physics department for five
semesters. In Spring 2004, he taught the Foundations of Physics lab,
for undergraduate Physics and Engineering major students.
Earlier, he was a lab instructor for the undergraduate Physics labs for
students in biology and non-Physics majors for two years, from Fall
2001 to Spring 2003.
The labs he taught every semester, comprised of more than 80 students
in four sections. He says he enjoyed being an instructor for the
labs. In particular, he says he liked the challenge of invoking
interest in Physics, among students who may not necessarily specialize
in it. He has compiled a list of tips to write better lab reports to help students in his class.
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Publications / IP
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Selected list
(The downloadable paper is presented to ensure timely
dissemination
of scholarly and technical work. Copyright and all rights therein are
retained
by authors or by other copyright holders. Anyone copying this
information is expected to adhere to the terms and constraints invoked
by each author's copyright. The work may not be reposted without the
explicit
permission of the copyright holder.)
- Conference:
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A. Subramanian, X. Gong, C. L. Wyatt, "Shoreline Detection in Images
for Autonomous Boat Navigation", Proceedings of the 40th Asilomar Conference
on Signals, Systems, Systems and Computers, 2006.
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A. Subramanian, X. Gong, J. N. Riggins, D. J. Stilwell, C. L. Wyatt, "
Shoreline Mapping using an Omni-directional Camera for Autonomous
Surface Vehicle Applications", Proceedings of the IEEE/MTS OCEANS Conference, 2006.
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A. Subramanian, L. R. Iyer, A. L. Abbott, A. E. Bell,
"Segmentation and Range Sensing using a Moving-aperture Lens",
Proceedings of the Eighth IEEE International Conference on Computer
Vision
(ICCV), vol. 2, pp. 500-507, 2001. PDF
[418 KB]
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- Journal:
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A. Subramanian, L. R. Iyer, A. L. Abbott, A. E. Bell,
"Segmentation and Range Sensing using a Moving-aperture Lens",
Machine Vision and Applications, vol. 15(1), pp.46-53, Oct. 2003.
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- Other:
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A. Subramanian, "Layer Extraction and Image Compositing
using a Moving-aperture Lens", Ph.D. Dissertation, Bradley Department
of Electrical and Computer Engineering, Virginia Tech, Blacksburg, Virginia, July 2005.
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A. Subramanian, "Image Segmentation and Range
Estimation using a Moving-aperture Lens", Master's Thesis, Bradley Department
of Electrical and Computer Engineering, Virginia Tech, Blacksburg, Virginia, May 2001.
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- Intellectual Properties:
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A. L. Abbott, A. Subramanian, "Algorithm and Software for
Image Segmentation and Compositing using a Moving-aperture Lens",
Virginia Tech IP Disclosure, 05-014, 2005.
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A. L. Abbott, A. E. Bell, A. Subramanian, L. R. Iyer,
"Image Segmentation and Range Sensing using a Moving Aperture Lens",
Virginia Tech IP Disclosure, 01-041, 2001.
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Bibliography
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The bibliography collection of Anbu, on selected
topics related to his research like optical flow,
motion, robust statistical methods, etc., are sorted by topic and year.
The topicwise list was generated using a bibtex style file created by
Anbu, based on David Hull's bib2html package. The original package is
licenced under GPL and you are free to use this modified version of bib2html package,
also under GPL. This package includes the new style file
(html-tcr.bst), which sorts topics (using a 'topic' field in bibtex
entries) and the modified perl script (bib2html.pl).
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Personal
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Anbu is a native of Tiruvannamalai, a town located 200 kilometers
from Chennai (earlier Madras), in the state of Tamilnadu, in South
India.
Since 1999, he has been a volunteer in the Virginia Tech (Blacksburg) chapter of Association for India's
Development (AID). AID is a voluntary, non-profit organization working for social development in India.
He is highly interested in Tamil Computing on Linux through
the Tamilinix Group
(see the screenshots on right). Way back in 2000, he wrote a Tamil
How-to for Linux (and Unix). This how-to is presently not
maintained and is superseded by FAQs and tutorials at Tamil Linux.
In 2001, he wrote a Tamil interface
to the Cologne
Tamil Lexicon.
This interface allows one to search for words in the Tamil
dictionary or find Tamil words related to an English
word. He presented a paper
[PDF] on this wrapper at the Tamil Internet Conference in 2002. He
wrote another
Tamil interface to the Cologne Tamil
Text Search.
He is a volunteer in
Project Madurai,
an electronic Tamil library project and also helps to maintain its
Distributed Proofreading
website. In 2003, he helped to proof-read
Ponniyin
Selvan for Project Madurai. Some day, he hopes to complete the
Tamil OCR, which
he began in 2000.
He is a Black belt (First degree) in Mudokwan style of Tae Kwon Do (TKD), the martial arts system of Korea.
His old (outdated) webpage
has some more information.
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