Presentation is loading. Please wait.

Presentation is loading. Please wait.

1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS.

Similar presentations


Presentation on theme: "1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS."— Presentation transcript:

1 1 These slides correspond to a short presentation (5 minutes) given at Neurocomp The presentation of the work starts slides 9. FACETS

2 2 Motion Integration Modulated by Form Information Guillaume S. Masson INRIA Sophia Antipolis Odyssée project team Émilien Tlapale Pierre Kornprobst INCM CNRS, Marseille

3 3 Integration generates perception

4 4 An integration of 1D and 2D features 2D 1D

5 5 Diffusion generates perception Our percept changes depending on the mask Example of barberpole

6 6 A simple « isotropic » integration can explain the percept NO Is it only a matter of number of terminators? 2D motion features

7 7 Form also matters!

8 8 Diffusion is anisotropic and depends on form Huang, Albright and Stoner Adaptive surround modulation in cortical area MT Neuron (2007)

9 9 We propose a model of motion integration V1 MT V2 I(x,y,t) Recurrent models and Form modulation Bayerl, Neumann, 2004 Grossberg et al Beck Neumann, 2008 …

10 10 We propose a model of motion integration V1 MT V2 I(x,y,t) Recurrent models and Form modulation Bayerl, Neumann, 2004 Grossberg et al Beck Neumann, 2008 … Towards a simpler model

11 11 We propose a model of motion integration V2 I(x,y,t) A directional modulating of motion integration depending on luminosity Recurrent models and Form modulation Bayerl, Neumann, 2004 Grossberg et al Beck Neumann, 2008 … Towards a simpler model

12 12 Let me explain you the equations! Ok, no time for this now! But lets see some results!

13 13 Considering Huang again

14 14 Extrinsic and intrinsic junctions

15 15 Extrinsic and intrinsic junctions No explicit junction detectors or stereo

16 16 Lorenceau-Alais illusions No need for long range diffusion

17 17 Diffusion du mouvement Wallace, Stone et Masson (2005) Simulating eye mouvements Read-out horizontal et vertical

18 18 Real sequences and GPU Highly parallelizable system Implemented on graphic cards (GPU)


Download ppt "1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS."

Similar presentations


Ads by Google