Dr. G.J. Fletcher's Home Page

Send email to me.


I am a Research Assistant in the SVR Group.
Supervisor: Dr Roberto Cipolla

Research Activities :-

I am a co-researcher on the EPSRC funded project, Invariant Signatures For Visual Servoing.

I am broadly interested in applications of singularity theory to differential geometry and computer vision. My thesis entitled "Geometrical Problems in Computer Vision" was written at Liverpool University under the supervision of Dr. P.J.Giblin.


Some wavefronts (i.e. parallels or offsets) of ellipse and surface.


This is the amazing SVR ball (big!)

Go here for a tour of apparent contours,

here for a demonstration of the frontier,

and here for some visual events.

Warning: graphic intensive pages.


All pictures and animations copyright the author and may not be reproduced without his permission.
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