Person

Junghyun Ahn

This person is no longer with EPFL

Related publications (18)

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Real-time textured volume reconstruction using virtual and real video cameras

Daniel Thalmann, Stéphane Gobron, Junghyun Ahn, Clément Marx

Reconstructing objects in three dimensions (3D) has always been one of the primary tasks in the domain of computer graphics (CG). Succeeding in this task in real-time, including texture reconstruction, and with very low-cost hardware is the challenge prese ...

2010

Asymmetrical Facial Expressions based on an Advanced Interpretation of Two-dimensional Russells Emotional Model

Daniel Thalmann, Stéphane Gobron, Junghyun Ahn, Quentin Silvestre

This paper proposes a novel method to compute emotional parameters based on Russell's 2D circumplex diagram for simulating and visualizing asymmetric facial expressions. Based on a large set of emotion coordinates allocated by psychologists, we have select ...

2010

Automated Motion LoD with Rigid Constraints

Daniel Thalmann, Junghyun Ahn

Motion LoD (Level of Detail) is a preprocessing technique that generates multiple details of captured motion by eliminating joints. This LoD technique is applied to movie, game or VR environments for the purpose of improving speed of crowd animation. So fa ...

2010

From Sentence to Emotion: a real-time 3D graphics metaphor of emotions extracted from text

Daniel Thalmann, Stéphane Gobron, Junghyun Ahn

This paper presents a novel concept: a graphical representation of human emotion extracted from text sentences. The major contributions of this paper are the following. First, we present a pipeline that extracts, processes, and renders emotion of 3D virtua ...

Springer-Verlag2010

Optimized Motion Simplification for Crowd Animation

Junghyun Ahn

Simulating a huge number of articulate figures in a real-time application is one of the challenging research topics in character animation. Several researchers have tried to improve the performance of animation using the image-based technique such as ‘impo ...

Wiley-Blackwell2006

Low Damped Cloth Simulation

Junghyun Ahn

This paper proposes a new implicit integration technique that reproduces a stable cloth without introducing excessive damping forces. Semi-implicit integration methods have been widely used in cloth simulations because of their high stability and speed. Ar ...

2006

Motion Level-of-Detail: A Simplification Method on Crowd Scene

Junghyun Ahn

Recent technological improvement in character animation has increased the number of characters that can appear in a virtual scene. Besides, skeletal and mesh structures are expected to be more complex in the future. Therefore, simulating massive characters ...

2004

KAIST Interactive Bicycle Simulator

Junghyun Ahn

This paper presents key technologies and system integration issues of the KAIST interactive bicycle simulator. The rider on the bicycle feels the motion and has the visual experience as if he/she is riding in the campus of the Korea Advanced Institute of S ...

IEEE2001