STEPHEN M. BENOIT, PhD.
Where to Reach Me:
Centre for Intelligent Machines
3480 University Street
Telephone: +1 (514) 398-2185
Fax : +1 (514) 398-7348
Email : firstname.lastname@example.org
What I have worked on
- My Master's thesis topic,
Monocular Optical Flow for Real-Time Vision Systems.
- A paper on this work, coauthored by
Frank P. Ferrie has been published in ICPR 96, and presented at the poster
session in Vienna, Austria.
- Our group has produced several Technical
Reports on Computer Vision.
- The earliest technical report based on this work, is available
- A more thorough technical report is available now as
This will help you decide if you want the complete thesis.
- Master's thesis in PostScript
(2.4 MB compressed, 14.4 MB uncompressed) was submitted March 1996, 90 pages
- WARNING! There is a typo in the Theory section, an equation in
both my Master's and Conference paper slipped through. If you get either one,
please pick up the Errata PostScript file.
Towards Direct Recovery of Shape and Motion Parameters from Image
My more recent research has dealt with extracting structure from motion
without optical flow. This process required the introduction of the
Correspondence Matrix representation of image deformation, and a method
to compute correspondenceless deformation detectors.
The different presentations and publications on this subject that I made in
2003 covered different aspects of the theory, case studies and results, but
were given essentially the same title.
The Correspondence Matrix representation has been applied to other
problems. Steerable kernels are now fundamental tools in image processing and
early vision. But can they be constructed for hexagonal pixels (common in
biological vision systems) or even disorganized misshapen pixels (not
necessarily in a grid)? The answer is yes.
- WAML 2003 (Workshop on Advances in Machine Learning): "Towards
Direct Recovery of Shape and Motion Parameters from Image Sequences",
S. M. Benoit, Workshop on Advances in Machine Learning, Montreal, Canada, June
8-11, 2003, 1 hour presentation.
- ICCV 2003 (see photos) (International Conference on Computer Vision): "Towards Direct Recovery of Shape and Motion Parameters
from Image Sequences", Stephen Benoit and Frank P. Ferrie, Proceedings of
ICCV, pp. 1395-1402, Nice, France, Oct. 2003. (gzipped Postscript, 536 kB) or (PDF, 248 kB)
- PhD Thesis "Towards Direct Recovery of Shape and Motion Parameters
from Image Sequences", Stephen Benoit. PhD Thesis, Dept. Electrical and
Computer Engineering, McGill University, Montreal, Quebec, Canada, Sept. 2003,
(gzipped Postscript, 2012 kB) or
(PDF, 3108 kB).
- PhD Defense My PhD thesis defense took place on Sept. 25, 2003.
The slide presentation I prepared lasts about 20 minutes, and covers the
highlights of my thesis, focusing on the structure from motion aspects.
(PDF, 2208 kB).
The specific problem of recovering Time To Collision (TTC) to various
surfaces for a robot moving through a scene with only its camera to guide it
has been studied as well.
- ICPR 2004 (see photos) (International Conference on Pattern Recognition):
"Steerable Kernels for Arbitrarily-Sampled Spaces", Stephen Benoit and Frank
P. Ferrie, Proceedings of ICPR 2004, Vol. 3, pp. 578-581, Cambridge, UK,
Aug. 2004. (gzipped Postscript, 117 kB).
This material was delivered on Wednesday, Aug. 25, 2004 in a
presentation (PDF, 578 kB).
- ICIAR 2005 (International Conference on Image Analysis and
Recognition): "Mapping Local Image Deformations into Depth", Stephen Benoit
and Frank P. Ferrie, Proceedings of ICIAR 2005, pp. 770-777, Toronto, Canada,
Sept. 2005. (gzipped Postscript, 540 kB)
or (PDF, 284 kB). This material was
delivered on Thursday, Sept. 29, 2005 in a presentation (PDF, 540 kB).
- CVIU (Computer Vision
and Image Understanding):
"Towards direct recovery of shape and motion parameters from image
sequences", Stephen Benoit and Frank P. Ferrie, Computer Vision and
Image Understanding 105 (2007), pp. 145-165. (PDF, 2908 kB).
Online Commercial Ventures
You can visit my favorite sites on the Internet that I have financed or built.
- Service Providers of America,
Inc. (also known as MagnumLine.Com). Most of the contents of
this site are restricted for now, available only to employees and
- DietByMD. A diet designed by a
doctor and customized for each client.
- MyWillOnline. Produce a
personalized final will and testament instantly, choosing from over 28
different types of wills or trusts.
- YourLivingWill. Record your
wishes should you be unable to communicate.
Appoint someone to act legally on your behalf.
Corporations spend large amounts of money handling their corporate
books. CorporateToolkit.Com can help build your corporate book for
you. We offer a series of 56 forms with which one can handle any
corporate situation. Our system is easy and ensures full corporate
- MyDivorceOnline. You can
now file for divorce using these low-stress, inexpensive services.
- NetLegalForms. Hundreds and
hundreds of legal forms. You don't always need a lawyer for these
everyday situations! Want to write a Living Will? Enter your name and
some other information on a form, and a complete document will be
produced for you immediately.
MentalTests.Com is the official home of the American College of Psychology
Consultants (ACPC). With paid membership, a psychologist or clinical
psychologist has access to over 200 mental tests. Each mental test is a
psychological evaluation tool derived from published clinical psychology
papers or recognised by the DSM-IV (Diagnostic and Statistical Manual version
4, or DSM-4) as a useful psychology tool.
The psychology tools found here are mostly psychological tests to evaluate
patients' state or progress during therapy. If you are not certain which
psychological test is appropriate, mentaltests.com provides guides to select
a psychology test among the many psychology tests available.
Hobbies and Information
- Home Satellite Systems, particularly the BUD (Big Ugly
Dish) systems, are to cable TV what the Internet is to local BBSes.
The international scope, the raw news feeds and the diversity of the media make it worthwhile to visit The Satellite TV Page and the
famous South Scanner
Satellite Service Chart, the definitive list of what is where in the
"birds". For a nice transponder grid overview, try the C-Band
- Guess what you're missing on TV this week! Want to know
when to set your VCR while you're away? Consult The interactive Network TV Schedule. I keep a local
copy of the TV listings.
- Knowing the local weather is always useful. I keep tabs on the
forecast and current
Montérégie weather, the
Townships forecast and current conditions, and the
- I am a big fan of Linux, the world's first living
operating system (i.e. the most developer - interactive). I keep up
to date by reading news:comp.os.linux.announce and
Linux 2.0 Information Headquarters, as
well as Freshmeat and Slashdot. I get updated Linux
documentation from the Linux
Documentation Project or the McGill LDP mirror.
Right now, I use the Debian GNU/Linux
distribution, which has a package management system that is aware of package
interdependancies and interactions, making system administration simple.
All cultures develop a style of humor of their own, and the Unix world is no
different: check out the User Friendly comic strip.
- I also construct, renovate and maintain several buildings on my family's
properties. I enjoy woodworking, and am a big fan of Norm Abram's New Yankee Workshop.
Usenet News Groups
Internet Search Engines