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Ronan Boulic

Cette personne a quitté l’EPFL

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Publications associées (89)

Page 4 sur 5

Exploring Blink-Rate Behaviors for Cybersickness Detection in VR

Ronan Boulic, Nana Tian

Cybersickness continues to be one of the main barriers for mainstream adoption of Virtual Reality (VR). Despite the wealth of research available on this topic, it is still an unsolved problem. This paper explores the potential influence of cybersickness ov ...

IEEE2020

A review of cybersickness in head‐mounted displays: raising attention to individual susceptibility

Ronan Boulic, Nana Tian

Cybersickness still poses a significant challenge to the widespread usage of virtual reality, leading to different levels of dis- comfort and potentially breaking the immersive experience. Researchers have attempted to discover the possible fundamental cau ...

2022

Real-time Self-contact Retargeting of Avatars down to Finger Level

Ronan Boulic, Bruno Herbelin, Mathias Guy Delahaye

We interact with the world through a body that includes hands and fingers. Likewise, providing an avatar allowing the control of a virtual body with fingers is an important step to improve the user experience in VR. When the user and their avatar skeleton ...

The Eurographics Association2023

Spreadsheet Framework for Visual Exploration of Biomedical Datasets

Daniel Thalmann, Ronan Boulic, Sofiane Sarni, Anderson Maciel

In this paper, we present our spreadsheet framework, which uses a spreadsheet-likeinterface for exploring biomedical datasets. The principles and advantages of this classof visualization systems are illustrated, and a case study for the analysis of hip joi ...

2005

SPA: Sparse Photorealistic Animation Using a Single RGB-D Camera

Ronan Boulic, Eray Molla

Photorealistic animation is a desirable technique for computer games and movie production. We propose a new method to synthesize plausible videos of human actors with new motions using a single cheap RGB-D camera. A small database is captured in a usual of ...

Ieee-Inst Electrical Electronics Engineers Inc2017

Challenges in exploiting prioritized inverse kinematics for motion capture and postural control

Ronan Boulic, Benoît Le Callennec

In this paper we explore the potential of prioritized inverse kinematics for motion capture and postural control. We have two goals in mind: reducing the number of sensors to improve the usability of such systems, and allowing interactions with the environ ...

2005

Motion Pattern Encapsulation for Data-Driven Constraint-Based Motion Editing

Daniel Thalmann, Ronan Boulic

The growth of motion capture systems have contributed to the proliferation of human motion database, mainly because human motion is important in many applications, ranging from games entertainment and films to sports and medicine. However, the captured mot ...

Springer2009

Characterizing full-body reach duration across task and viewpoint modalities

Daniel Thalmann, Ronan Boulic, Damien Maupu

The full-body control of virtual characters is a promising technique for application fields such as Virtual Prototyping. However it is important to assess to what extent the user full-body behavior is modified when immersed in a virtual environment. In the ...

University of Applied Sciences Dusseldorf2009

An NVC Emotional Model for Conversational Virtual Humans in a 3D Chatting Environment

Daniel Thalmann, Ronan Boulic, Junghyun Ahn, Stéphane Gobron, Quentin Silvestre

This paper proposes a new emotional model for Virtual Humans (VHs) in a conversational environment. As a part of a multi-users emotional 3D-chatting system, this paper focus on how to formulate and visualize the flow of emotional state defined by the Valen ...

Springer Berlin Heidelberg2012

Evaluating the influence of induced passive torques in the simulation of time-varying human poses

Ronan Boulic

In the computerized generation of human poses, it is important to take into account not only the active component of the torque, but also the ligaments and connective tissues which produce a passive torque at the limits of the joint range of motion. We pre ...

2008

Relaxed Steering towards Oriented Region Goals

Ronan Boulic

This paper extends the funnelling behavior to offer a low-cost flexible guidance of mobile entities towards a circular region goal with the guarantee of enforcing an orientation within a predefined tolerance interval. The key requirements are the same as t ...

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

User study of omnidirectional treadmill control algorithms in VR

Ronan Boulic, Mathias Guy Delahaye

We conducted a comparative user study of the Infinadeck [1] omnidirectional treadmill native control algorithm alongside an approach based on a state observer control scheme combining a kinematic model with error dynamics that allows users to change their ...

IEEE COMPUTER SOC2023

Robust Kinematic Constraint Detection for Motion Data

Ronan Boulic, Benoît Le Callennec

Motion capture data is now widely available to create realistic character animation. However, it is difficult to reuse without any additional information. For this reason, annotating motion data with kinematic constraints is a clever step to ease further o ...

2006

Within-Crowd Immersive Evaluation of Collision Avoidance Behaviors

Daniel Thalmann, Ronan Boulic, Junghyun Ahn, Nan Wang

In this paper, we first present our crowd simulation method, Trajectory Variant Shift (TVS) based on real pedestrian trajectories re-use. We detail how to re-use and shift these trajectories to avoid collisions while retaining the liveliness of captured da ...

ACM2012

Efficient Collision Detection within Deforming Spherical Sliding Contact

Daniel Thalmann, Ronan Boulic, Anderson Maciel

2007

Evaluation of on-line analytic and numeric inverse kinematics approaches driven by partial vision input

Ronan Boulic

Springer-Verlag2006

A Fast Method for Finding Range of Motion in the Human Joints

Daniel Thalmann, Ronan Boulic

Finding the range of motion for the human joints is a popular method for diagnosing joint diseases. By current technology, it is more trustable and easier to find the range of motion by employing computer based models of the human tissues. In this paper we ...

2007

Full-Body Avatar Control with Environment Awareness

Daniel Thalmann, Ronan Boulic, Daniel Raunhardt, Damien Maupu

Interactive control of virtual characters through full-body movement requires accurately reproducing a performer's motion while accounting for surrounding obstacles. The authors' approach, based on a prioritized inverse kinematics solver, satisfies marker ...

Institute of Electrical and Electronics Engineers2009

Estimating Hip Joint Contact Pressure from Geometric Features

Daniel Thalmann, Ronan Boulic

Hip mechanical simulation for estimating pressures within the soft tissues during the loads and motions of daily activities is a common approach to investigate hip joint pathology. Many computational approaches estimate the pressure and contact pressures v ...

Springer-Verlag London Ltd, Sweetapple House Catteshall Rd Farncombe, Godalming Gu7 1Nh, Surrey, England2009

One Step from the Locomotion to the Stepping Pattern

Ronan Boulic, Eray Molla

The locomotion pattern is characterized by a translation displacement mostly occurring along the forward frontal body direction, whereas local repositioning with large re-orientations, i.e. stepping, may induce translations both along the frontal and the l ...

ACM Press2016