Direction des Relations Internationales (DRI)

INRIA Programme  "Associate Teams "
(Continuation Form)

I. DEFINITION

ASSOCIATE TEAM

 		   RTR2A
selection
 2004     extended to a new partner in 2008  and considered as a new Associate Team   
Renewal
2010

 

INRIA project: SIAMES/BUNRAKU
 Foreign partners
Unité de recherche INRIA : Rennes
Thème INRIA : Cognitive
  University of Central Florida, University of Utah, US
 
 
French Coordinator
Partner Coordinator 1
 Partner Coordinator 2         
Last Name, First Name
  Kadi Bouatouch
   Sumant Pattanaik
 Charles Hansen
Title  Professor   Associate Professor
 Professor
Institution
(précisez le département et/ou le laboratoire)		  INRIA Rennes, Université de Rennes 1
 Computer Graphics Lab. University of Central Florida,
 School of Computer Science 		School of Computing,
Adress
  Campus de Beaulieu, 35042 Rennes Cedex
  School of Computer Sciences, University of Central Florida
Orlando, Florida, 32816-2362, USA

 School of Computing, University of UTAH
50 S. Central Campus Drive, RM 3190 MEB
Salt Lake City, Utah 84112
URL  www.irisa.fr/siames/Kadi.Bouatouch  http://www.cs.ucf.edu/~sumant/ http://www.cs.utah.edu/~hansen/
Tel  02 99 84 72 58
  +1 407 823 2638
 +1 801 581 3154
Fax  02 99 84 71 71
  +1 407 823 5419
 +1 801 581 5843
E-mail  kadi@irisa.fr  sumant@cs.ucf.edu hansen@cs.utah.edu



Brief description of the proposal 

 Rendu et Illumination Globale en Temps Réel------- Rendering and  Global illumination in Real-Time

Description (about 10 lignes) :
The targetted objective is real time rendering and real-time golbal illumination computation for static and dynamic scenes. The first objective is real-time high fidelity rendering of dynamic scenes. Rendering complex scenes using a classical graphics pipeline (Z-buffering, Phong's shading model, multitexturing, etc.) can be efficiently performed with commodity graphics cards. However, real-time rendering of scenes, for which global illumination is computed, still is a challenge for many researchers. Indeed, global illumination followed by a rendering step (that we call high fidelity rendering) is a demanding process in terms of computing and memory resources. The approch proposed in this collaboration has to intensively exploit the performances of the new graphics cards to meet the real-time constraint. The second objective is  to extend our global illumination algorithms to volumetric data such as medical images and other semi-transparent objects.  Light transport in such objects must account for:  multiple scattering, attenuation effects, etc. Computing and rendering these effects amounts to solve the radiative transfer equation which is very time consuming. Realistic and fast approximations are needed.

II. OUTCOME of 2009 and Balance Sheet

This was the second year of the extended associate team. Indeed,  the university of UTAH has joined us for a new adenture.

Scientific Report for 2009

In 2009 we have  addressed the following topics : (1) Real-time rendering of natural scenes (2) Real-time rendering of globally illuminated volume data, (3) A Bayesian Monte Carlo Approach to Global Illumination.

       Publications in 2009

Financial report  2009

1. EA Expenses (performed by the Associate Team )
Spent amount 
Partners welcome   10300 €
 INRIA Missions   2400 €
Total
  12700  €

Justifiez en quelques lignes l'utilisation des crédits et en particulier une utilisation partielle du budget alloué.

2. External Expenses (supported by other institutions)
Spent amount 
Name of the institution  1 (*): University of Central Florida
Partners welcome    0 €
 INRIA  Missions   0 €
Total
   0 €
Name of the institution2 (*): University of Utah
Partners welcome    0 €
INRIA  Missions   0 €
Total
   0 €

(*) Ajouter ou supprimer des lignes au tableau ci-dessus de façon à faire figurer tous les organismes ayant contribué au financement de l'équipe associée

Total of  external funding

 0 €

Total of  Associate Team and external fundings

  12700  €

 

Remarks: 

Professor Sumant Pattanaik got a sabatical year from the first of september 2008 to the end of July 2009. He was then out of Orlando, which  explains the fact that he did not bring funding to the Associate Team.  Regarding Professor Chuck Hansen, he did not get funding for supporting the Associate Team.

Summary of exchanges performed in 2009


1.  Seniors  

Name
position
 from
to
object (2)
duration (3)
Cost (if EA funding)
Cost (if external funding)
 Sumant Pattanaik  Professor  UCF  Rennes  Summary + research planning   3 days  1294 €   0 €
 Charles Hansen  Professor  UTAH  Rennes  Summary + research planning  7 days  1811 €   0 €
               
               
               
               
               
               

Total 
  3105 €
(1) DR / CR / professeur
(2) colloque, thèse, stage, visite....
(3) précisez l'unité (mois, semaine..)


2. Juniors

Name
position
from
 to
object (2)
duration (3)
Cost (if EA funding)
Cost (if external funding)
 M. Schott   PhD student  UTAH  Rennes  internship (REUSSI)  2 months  2186 €  0 €
 Carson Brownlee   PhD student  UTAH  Rennes  internship  2 months  5000 €  0 €
 Cyril Delalandre  PhD student  Rennes  UTAH  internship  1 month  2400 €  0 €
               
               
               

Total 
  9586 €
(1) post-doc / doctorant / stagiaire
(2) colloque, thèse, stage, visite....
(3) précisez l'unité (mois, semaine..)

III. EXPECTATIONS 2009

Work Plan

The objective for 2010 is the following:

           We sincerely think that there is a long way to go to be capable of performing global illumination computation in a moderate time for complex scenes containing different types of material. We think new methods are needed to address the problem of complexity in terms of geometry, photometry and illumination effects. The medium term goal of our project is to develop novel algorithms towards computing global illumination for large environments, particularly huge urban cityscapes with large building structures. This would also consider vegetation (ex: grass and tree onparks, and on the street) present in the city, the global illumination effects due to the interaction of light among the vegetation alone and their interaction with building structures. This work will be done in collaboration with UCF.
          We would like to continue our work on adapting our global illumination algorithms to the computation of multiple scattering within  volumetric data such as medical images and other semi-transparent objects.  Light transport in such objects must account for:  multiple scattering, attenuation effects, etc. Computing and rendering these effects amounts to solve the radiative transfer equation which is very time consuming. Based on our experience in global illumination,  our approach will provide a real-time approximation of  multiple scattering within volumetric objects to improve realism and make the rendered images more appealing and precisely interpreted by doctors. A first approach has been successfully implemented and presented at a symposium. This approach consider only forward scattering and an approximation of multiple scattering. Our objective is to to extend it to any phase function and to a more accurate handling of multiple scattering. This work will be done in collaboration with the university of Utah.

 

Exchange Programme with projected budget 

1. Exchanges

Professor Charles Hansen and Professor Sumant Pattanai will spend each one week  in Rennes in 2010. I will visit Utah for one week.
These visits will allow us to:
I will send one of my PhD students (Cyril Delalandre) to Utah. He will spend one month.
I will welcome two PhD students: one from Utah  and  one from UCF, or two from UTAH. They will spend each two months.

 1. ESTIMATION OF THE EXPENSES ENTAILED BY THE  MISSIONS INRIA TOWARD THE PARTNERS 
Number of people
Estimated cost
Seniors  1  2000 €
Post-doc
    
PhD students  1  2400 €

Trainee

   
Others
    
   Total
  2  4400 €

 

 2. ESTIMATION OF THE EXPENSES ENTAILED BY THE  INVITATIONS OF THE PARTNERS
Number of people
Estimated cost
Seniors  2  4000 €
Post-doc    
PhD students  2  10000 €  (including employee and employer contributions, and travel expenses)

Trainee

   
Others    
   Total
  4  14000 €

2. Co-funding (external funding)


Professor Sumant Pattanaik got a sabatical year from the first of september 2008 to the end of July 2009. He was then out of Orlando, which  explains the fact that he did not bring funding to the Associate Team.  But, during his visit to our lab  in September 2009, we planned to collaborate with Electronic Arts (our PhD student, Kévin Boulanger who defended his PhD in July 2008, is now working with EA in Orlando) to get funding that would support our Associate Team. Regarding Professor Chuck Hansen, he did not get funding for supporting the Associate Team but he is still  looking for  funding.

I am responsible for some contracts managed by the university of Rennes 1. I propose to use 8400 €  for our associate team. 


EXPECTED EXTERNAL FUNDING
Institution
Amount
 University of Central Florida, USA
 Not this year
 University of Utah  Not this year (possibility if collaboration with EA)
University of Rennes 1  (university contracts managed by  Kadi Bouatouch)  8400 €
   
   
Total
 8400 €

3. Budget request

Comments
Amount
A. Global cost of the proposal  (total tables 1 and 2 : invitations, missions, ...)  18400 €
B. Co-funding used  (Other fundings than "Associate Team Equipe")  8400 €
Requested funding for the "Associate Team" (A.-B.) (maximum 10 K€)
 10000 €

 

 

© INRIA - mise à jour le 15/08/2008