Meeting Agenda



Date:	June 30th, 2004
Location:	DC 1304
Time:	2:30 PM
Chair:	Stephen Mann

1. Adoption of the Agenda - additions or deletions

2. Coffee Hour

Coffee hour last week:: Gabo
Coffee hour this week:: Edwin
Coffee hour next week:: ???

3. Forthcoming


Date:	July 7th	July 14th	July 21th	July 28th
Location:	DC1304	DC1304	DC1304	DC1304
Chair:	Michael McCool	Gabriel Moreno	Kevin Moule	Tiberiu Popa
Technical Presentation:	Robin Liu	Michael McCool	Rob Kroeger	Gabriel Moreno

4. Technical Presentation



Yi Lin

Title: Shape and Motion from Image Streams: A Factorization Method

Abstract: Inferring scene geometry and camera motion from a stream of images is possible in principle, but it is an ill-conditioned problem when the objects are distant with respect to their size. A factorization method was developed to overcome this difficulty by recovering shape and motion without computing depths as an intermediate step.

An image stream can be represented by the 2FxP measurement matrix of the image coordinates of P points tracked through F frames. Under orthographic porjection this matrix is of rank 3. Using this observation, the factorization method uses the singular value decomposition technique to factor the measurement matrix into two matrices, which represent object shape and camera motion, respectively.

5. General Discussion Items

DC1304 not available for lab meeting on: June 2, June 16, June 23, Aug 25. Please keep this until that time.
Lab rearrangement

6. Action List

Lab Rearrangement Discussion (Tibi)

7. Conferences and Special Journal Issues

8. Directors' Meeting

9. Seminars and Events

Wednesday, 30 June 2004, 3:00PM - Combinatorics and Optimization , MC 5136: Speaker 1: Alfred Menezes; Speaker 2: Donny Cheung: -- Speaker 1: Identity-Based Encryption; Speaker 2: TBA
Friday, 2 July 2004, 3:30PM - Combinatorics and Optimization , MC 5158: Jim Geelen: -- Matroid representation