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- Path: sparky!uunet!charon.amdahl.com!pacbell.com!ames!agate!doc.ic.ac.uk!uknet!cam-eng!mww
- From: mww@eng.cam.ac.uk (Mark Wright)
- Newsgroups: comp.graphics.visualization
- Subject: Re: Visual Force
- Message-ID: <1992Nov17.174334.16830@eng.cam.ac.uk>
- Date: 17 Nov 92 17:43:34 GMT
- Sender: mww@eng.cam.ac.uk (Mark William Wright)
- Organization: Cambridge University Engineering Department, UK
- Lines: 31
- Nntp-Posting-Host: dsl.eng.cam.ac.uk
-
- Hello,
- I lost the email address of Richard Gray of Edinburgh University
- who was talking about Visual Force recently on this group. I hope I
- can make contact by posting to this group.
-
- In a recent mail message I said I couldn't see how the
- Canny algorithm could be used for detecting curvature extrema
- in range images, this was a misunderstanding.
-
- In Ting-Jun Fan's book "Describing and recognising 3-D shapes using
- surface Properties" (Springer-Verlag) the Canny is used to detect
- discontinuities whereas a technique due to Saint-Marc and Medioni is
- used to detect the curvature extrema.
-
- One more point I would like to add is that it seems to me that
- visual force is actually a concept that belongs to "Active Vision"
- i.e. Systems which interact with a scene in real time such as a
- stereo pair capable of moving to fixate on an object and track it.
-
- Richard, I would still be interested in any references you have on this
- subject or any ideas about you might like to discuss should you care
- to reply by Email.
-
- -------------------------------------------------------------
- Mark Wright
- Speech, Vision and Robotics Group
- Cambridge University Engineering Department
- Trumpington Street, Cambridge, England CB2 1PZ
- Tel: +44-223-332754 Fax:+44-223-332662
- EMail: mww@eng.cam.ac.uk
- -------------------------------------------------------------
-