||This monday seminar will be on direction and symmetries in 2D
images. The talk is based on a few chapters in the book Vision with
Direction by Josef Bigun. I will talk about detection of linear symmetry
by direct sampling of the structure tensor. A generalization of this
method also gives the possibility to detect symmetries with more than one
main direction, leaving the restriction that the image, at least locally,
must be linearly symmetric. Also the concept of coordinate tranformations
for detection of other patterns will be mentioned.