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Daniel Thalmann

Cette personne a quitté l’EPFL

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Publications associées (161)

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Fast collision detection methods for joint surfaces

Daniel Thalmann, Ronan Boulic

In the recent years medical diagnosis and surgery planning often require the precise evaluation of joint movements. This has led to exploit reconstructed three-dimensional models of the joint tissues obtained from CT or MR Images (for bones, cartilages, et ...

2009

Motion Pattern Preserving IK Operating in the Motion Principal Coefficients Space

Daniel Thalmann, Ronan Boulic

We introduce a constraint-based motion editing technique enforcing the intrinsic motion flow of a given motion pattern (e.g., golf swing). Its major characteristic is to operate in the motion Principal Coefficients (PCs) space instead of the pose PCs space ...

2007

Autonomous virtual agents learning a cognitive model and evolving

Daniel Thalmann, Toni Conde

In this paper, we propose a new integration approach to simulate an autonomous virtual agent's cognitive learning of a task for interactive virtual environment applications. Our research focuses on the behavioural animation of virtual humans capable of act ...

2005

An Interdisciplinary VR-Architecture for 3D Chatting with Non-verbal Communication

Daniel Thalmann, Stéphane Gobron, Junghyun Ahn, Quentin Silvestre

The communication between avatar and agent has already been treated from different but specialized perspectives. In contrast, this paper gives a balanced view of every key architectural aspect: from text analysis to computer graphics, the chatting system a ...

Eurographics Association2011

Motion Modeling: Can We Get Rid of Motion Capture?

Daniel Thalmann

For situations like crowd simulation, serious games, and VR-based training, flexible and spontaneous movements are extremely important. Motion models would be the best strategy to adopt, but unfortunately, they are very costly to develop and the results ar ...

Springer-Verlag New York, Ms Ingrid Cunningham, 175 Fifth Ave, New York, Ny 10010 Usa2008

Real-Time Scalable Motion Planning for Crowds

Daniel Thalmann, Jonathan Maim, Barbara Yersin

Real-time crowd motion planning requires fast, realistic methods for path planning as well as obstacle avoidance. The difﬁculty to ﬁnd a satisfying trade-off between efﬁciency and believability is particularly challenging, and prior techniques tend to focu ...

2007

Latent motion spaces for full-body motion editing

Daniel Thalmann, Ronan Boulic

We explore an approach to full-body motion edit- ing with linear motion models, prioritized constraint-based optimization and latent-space interpolation. By exploiting the mathematical connections between linear motion mod- els and prioritized inverse kine ...

2013

The Benefits of Third-Person Perspective in Virtual and Augmented Reality?

Daniel Thalmann, Frédéric Vexo, Patrick Salamin

Instead of the reality in which you can see your own limbs, in virtual reality simulations it is sometimes disturbing not to be able to see your own body. It seems to create an issue in the proprioperception of the user who does not completely feel integra ...

2006

Semantics-based representation of virtual environments

Daniel Thalmann, Frédéric Vexo

In this paper we present an object representation based on the semantics and functionality of interactive digital items - virtual objects - within a virtual environment (VE). We consider every object participating in a VE application not only as a 3D shape ...

2005

Emerging Web graphics standards and technologies

Daniel Thalmann

Migrating computer graphics to the Web poses several problems, but with new standards and technology advances, graphics applications can balance latency and bandwidth constraints with image quality. The paper discusses Web graphics standards, distributed v ...

IEEE2003

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

A visualization framework for the analysis of neuromuscular simulations

Daniel Thalmann, Anders Sandholm

We present a visualization framework for exploring and analyzing data sets from biomechanical and neuromuscular simulations. These data sets describe versatile information related to the different stages of a motion analysis. In studying these data using a ...

Springer-Verlag2011

Vibrotactile Jacket For Perception Enhancement

Daniel Thalmann, Sylvain Cardin

By nature, human beings perceive their environment mostly using sight and audition. Vibrotactile feedback has proven satisfying results in the domains of simple multimodal interaction, for immersion and navigation purposes. The scope of this research is to ...

2008

Crowds of Moving Objects: Navigation Planning and Simulation

Daniel Thalmann

This paper presents a solution to interactive navigation planning and real-time simulation of a very large number of entities moving in a virtual environment. From the environment geometry analysis, we deduce a structure called navigation graph, which is t ...

2007

Asymmetric facial expressions: revealing richer emotions for embodied conversational agents

Daniel Thalmann, Ronan Boulic, Stéphane Gobron, Junghyun Ahn

In this paper, we propose a method to achieve effective facial emotional expressivity for embodied conversational agents by considering two types of asymmetry when exploiting the Valence-Arousal-Dominance representation of emotions. Indeed, the asymmetry o ...

Wiley-Blackwell2013

Evaluating Quality of Screen Content Images Via Structural Variation Analysis

Daniel Thalmann, Matthieu Guerquin-Kern

With the quick development and popularity of computers, computer-generated signals have drastically invaded into our daily lives. Screen content image is a typical example, since it also includes graphic and textual images as components as compared with na ...

IEEE COMPUTER SOC2018

The Making of a 3D-Printed, Cable-Driven, Single-Model, Lightweight Humanoid Robotic Hand

Daniel Thalmann

Dexterity robotic hands can (Cummings, 1996) greatly enhance the functionality of humanoid robots, but the making of such hands with not only human-like appearance but also the capability of performing the natural movement of social robots is a challenging ...

Frontiers Media Sa2017

The “Caddie Paradigm”: a free-Locomotion Interface for Teleoperation

Daniel Thalmann, Frédéric Vexo

This paper presents the “caddie paradigm” a new interface for teleoperation of mobile robots. We present a prototype based on the use of a treadmill as a free-locomotion interface. The “caddie paradigm” allows for controlling a real robot by “pushing” its ...

2005

Populating Ancient Pompeii with Crowds of Virtual Romans

Daniel Thalmann, Jonathan Maim, Barbara Yersin

Pompeii was a Roman city, destroyed and completely buried during an eruption of the volcano Mount Vesuvius. We have revived its past by creating a 3D model of its previous appearance and populated it with crowds of Virtual Romans. In this paper, we detail ...

2007

Real-Time 3D Hand Pose Estimation with 3D Convolutional Neural Networks

Daniel Thalmann, Hui Liang

In this paper, we present a novel method for real-time 3D hand pose estimation from single depth images using 3D Convolutional Neural Networks (CNNs). Image-based features extracted by 2D CNNs are not directly suitable for 3D hand pose estimation due to th ...

IEEE COMPUTER SOC2019