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- Research activities.

+ Facial Expression Analysis
+ Facial Expression Retargeting
+ Control Interface for a Synthetic Face

Publications.

- Research activities:

I am currently a PhD student under supervision of Renaud Seguier.
The subject of my thesis is the
Facial Expressiveness of Virtual Characters.
You can checkout a few videos of my results so far :
please refer to my publications list for my details.


+ Facial Expression Analysis :

We aim at capturing and understanding how facial element move when performing facial expressions.
We identify and interpret the expressions as a 2D point in our continuous facial expression disk. The expressions can be imitated by a virtual character who is commanded by the expression disk (last video on the right).

Expression Tracking Example Online Analysis Example Online Analysis Example 2 Online Analysis and Imitation
Facial Expressions Tracking Online Analysis Online Analysis 2 Real-time Analysis and
Imitation of Expressions


+ Facial Expression Retargeting :

We developped a technique to retarget facial expressions from a source face (typically a human subject) onto a target face (2D or 3D virtual character).
Results*:
2D_3D_retargetting_snapshot Online_Retargetting_snapshot
2D and 3D Retargetting** Online Retargetting





+ Control Interface for a Synthetic Face :
We manage to automatically generate a simple, intuitive control interface to manipulate emotional facial expressions on a synthetic face. The interface is based on the analysis of real human facial expressions.

Results*:
2D Character:
Animation Sequence Generation Control Space Exploration Control Space Exploration 2

3D Character**:
Intuitive Face Control Animation Sequence Generation Animation Sequence Generation 2
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- Publications:

+ 2010

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Nicolas Stoiber The Mimic Game: Real-time Recognition and Imitation of Emotional Facial Expressions. to appear in SIGGRAPH Talks 2010.
VIDEO,

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Nicolas Stoiber, Gaspard Breton, Renaud Seguier. Modeling Short-term Dynamics and Variability for Realistic Interactive Facial Animation. to appear in Computer Graphics and Applications, 2010.
VIDEO,

preview
Nicolas Stoiber, Renaud Seguier, Gaspard Breton. Facial Animation Retargeting and Control based on a Human Appearance Space. Computer Animation and Virtual Worlds, vol. 21, pp. 39-54, 2010.
VIDEO, LINK

preview
Nicolas Stoiber, Renaud Seguier, Gaspard Breton. A Data-Driven Meaningful Representation of Emotional Facial Expressions. To appear in Multimedia Information Extraction (Mark Maybury, eds. 2010).

+ 2009

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Nicolas Stoiber, Renaud Seguier, Gaspard Breton. Représentation objective et pertinente des expressions faciales émotionnelles. Présentation à la journée "Visage, geste, action et comportement" du GDR-ISIS (8 décembre 2009).
PDF

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Nicolas Stoiber, Renaud Seguier, Gaspard Breton. Automatic design of a control interface for a synthetic face. In Proceedings of the 13th international Conference on intelligent User interfaces (Sanibel Island, Florida, USA, February 08 - 11, 2009).
PDF

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Abdul Sattar, Nicolas Stoiber, Renaud Seguier, Gaspard Breton. Gamer's Facial Cloning for Online Interactive Games. In International Journal of Computer Games Technology (special issue on Cyber Games and Interactive Entertainment).
PDF

+ Unpublished

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Nicolas Stoiber, Bruno Levy, Eckehard Steinbach. Compression of Images and Videos by Geometrization.
Master Thesis Report, 2007.
INRIA Lorraine, ALICE Team.
PDF

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Nicolas Stoiber. 2009.