1 these slides correspond to a short presentation (5 minutes) given at neurocomp 2008. the...
TRANSCRIPT
![Page 1: 1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS](https://reader035.vdocument.in/reader035/viewer/2022070306/5519967f5503464d068b47f7/html5/thumbnails/1.jpg)
1
These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9.
FACETS
![Page 2: 1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS](https://reader035.vdocument.in/reader035/viewer/2022070306/5519967f5503464d068b47f7/html5/thumbnails/2.jpg)
2
Motion Integration Modulated by Form Information
Guillaume S. Masson
INRIA Sophia AntipolisOdyssée project team
Émilien Tlapale Pierre Kornprobst INCM
CNRS, Marseille
![Page 3: 1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS](https://reader035.vdocument.in/reader035/viewer/2022070306/5519967f5503464d068b47f7/html5/thumbnails/3.jpg)
3
Integration generates perception
![Page 4: 1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS](https://reader035.vdocument.in/reader035/viewer/2022070306/5519967f5503464d068b47f7/html5/thumbnails/4.jpg)
4
Integration generates perception
An integration of 1D and 2D features
2D1D
![Page 5: 1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS](https://reader035.vdocument.in/reader035/viewer/2022070306/5519967f5503464d068b47f7/html5/thumbnails/5.jpg)
5
Diffusion generates perception
Our percept changes depending on the mask
Example of barberpole
![Page 6: 1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS](https://reader035.vdocument.in/reader035/viewer/2022070306/5519967f5503464d068b47f7/html5/thumbnails/6.jpg)
6A simple « isotropic » integration can explain the percept
NOIs it only a matter of number of terminators?
2D motion features
![Page 7: 1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS](https://reader035.vdocument.in/reader035/viewer/2022070306/5519967f5503464d068b47f7/html5/thumbnails/7.jpg)
7
Form also matters!
![Page 8: 1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS](https://reader035.vdocument.in/reader035/viewer/2022070306/5519967f5503464d068b47f7/html5/thumbnails/8.jpg)
8
Form also matters!
Diffusion is “anisotropic” and depends on form
Huang, Albright and StonerAdaptive surround modulation in cortical area MTNeuron (2007)
![Page 9: 1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS](https://reader035.vdocument.in/reader035/viewer/2022070306/5519967f5503464d068b47f7/html5/thumbnails/9.jpg)
9
We propose a model of motion integration
V1
MTV2
I(x,y,t)
Recurrent models andForm modulation
Bayerl, Neumann, 2004Grossberg et al. 2007Beck Neumann, 2008…
![Page 10: 1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS](https://reader035.vdocument.in/reader035/viewer/2022070306/5519967f5503464d068b47f7/html5/thumbnails/10.jpg)
10
We propose a model of motion integration
V1
MTV2
I(x,y,t)
Recurrent models andForm modulation
Bayerl, Neumann, 2004Grossberg et al. 2007Beck Neumann, 2008…
Towards a simpler model
![Page 11: 1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS](https://reader035.vdocument.in/reader035/viewer/2022070306/5519967f5503464d068b47f7/html5/thumbnails/11.jpg)
11
We propose a model of motion integration
V2
I(x,y,t)A directional modulating of motion integration depending on luminosity
Recurrent models andForm modulation
Bayerl, Neumann, 2004Grossberg et al. 2007Beck Neumann, 2008…
Towards a simpler model
![Page 12: 1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS](https://reader035.vdocument.in/reader035/viewer/2022070306/5519967f5503464d068b47f7/html5/thumbnails/12.jpg)
12
Let me explain you the equations!
Ok, no time for this now! But let’s see some results!
![Page 13: 1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS](https://reader035.vdocument.in/reader035/viewer/2022070306/5519967f5503464d068b47f7/html5/thumbnails/13.jpg)
13
Considering Huang again
![Page 14: 1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS](https://reader035.vdocument.in/reader035/viewer/2022070306/5519967f5503464d068b47f7/html5/thumbnails/14.jpg)
14
Extrinsic and intrinsic junctions
![Page 15: 1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS](https://reader035.vdocument.in/reader035/viewer/2022070306/5519967f5503464d068b47f7/html5/thumbnails/15.jpg)
15
Extrinsic and intrinsic junctions
No explicit junction detectors or stereo
![Page 16: 1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS](https://reader035.vdocument.in/reader035/viewer/2022070306/5519967f5503464d068b47f7/html5/thumbnails/16.jpg)
16
Lorenceau-Alais illusions
No need for long range diffusion
![Page 17: 1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS](https://reader035.vdocument.in/reader035/viewer/2022070306/5519967f5503464d068b47f7/html5/thumbnails/17.jpg)
17
Diffusion du mouvement
Wallace, Stone et Masson (2005)
Simulating eye mouvements
Read-out horizontal et vertical
![Page 18: 1 These slides correspond to a short presentation (5 minutes) given at Neurocomp 2008. The presentation of the work starts slides 9. FACETS](https://reader035.vdocument.in/reader035/viewer/2022070306/5519967f5503464d068b47f7/html5/thumbnails/18.jpg)
18
Real sequences and GPU
Highly parallelizable system
Implemented on graphic cards (GPU)