An immersive multi-agent system for interactive applications

Wang, Yanbin; Dubey, Rohit K.; Magnenat‐Thalmann, Nadia; Thalmann, Daniel

doi:10.1007/s00371-012-0735-7

Cited by 15 publications

(7 citation statements)

References 24 publications

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“…Each group of virtual humans is led by an intelligent group leader and a world manager can interactively assign a goal configuration to a group leader through a graphical user interface at the virtual environment server. Thalmann et al presented an interactive navigation system in which a user is able to control an avatar in the crowd through a natural interface, but the interaction remains between a single user and the virtual characters (Wang et al, 2012). Pelechano proposed an experiment to closely study the behavior of people interacting with a virtual crowd (Pelechano and Stocker, 2008).…”

Section: Virtual Enviroments and Interactionmentioning

confidence: 99%

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Coupling Camera-tracked Humans with a Simulated Virtual Crowd

Rivas

Gyves

Rudomín

et al. 2014

Proceedings of the 9th International Conference on Computer Graphics Theory and Applications

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Abstract:Our objective with this paper is to show how we can couple a group of real people and a simulated crowd of virtual humans. We attach group behaviors to the simulated humans to get a plausible reaction to real people. We use a two stage system: in the first stage, a group of people are segmented from a live video, then a human detector algorithm extracts the positions of the people in the video, which are finally used to feed the second stage, the simulation system. The positions obtained by this process allow the second module to render the real humans as avatars in the scene, while the behavior of additional virtual humans is determined by using a simulation based on a social forces model. Developing the method required three specific contributions: a GPU implementation of the codebook algorithm that includes an auxiliary codebook to improve the background subtraction against illumination changes; the use of semantic local binary patterns as a human descriptor; the parallelization of a social forces model, in which we solve a case of agents merging with each other. The experimental results show how a large virtual crowdreacts to over a dozen humans in a real environment.

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Section: Virtual Enviroments and Interactionmentioning

confidence: 99%

“…Real-time crowd simulation is a research area that is growing rapidly and has become one of the main research directions in computer games, movies and virtual reality (Wang et al, 2012). Applications include urban planning, security and entertainment, among others (De Gyves et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Coupling Camera-tracked Humans with a Simulated Virtual Crowd

Rivas

Gyves

Rudomín

et al. 2014

Proceedings of the 9th International Conference on Computer Graphics Theory and Applications

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show abstract

“…Thalmann et al presenta un sistema interactivo de navegación en el cual el usuario tiene la capacidad de controlar un personaje en la multitud a través de una interface natural, pero la interacción sigue siendo entre unúnico usuario y personajes virtuales [27]. Pelechano propuso un experimento para estudiar de cerca el comportamiento de las personas, en una fiesta de cocktail, interactuando con personajes virtuales [21].…”

Section: Trabajo Relacionadounclassified

“…La simulación de multitudes en tiempo real se ha convertido en una de las principales líneas de investigación en los juegos de computadora, películas y realidad virtual [27]. Sin embargo, solo unos pocos juegos utilizan las multitudes como una forma de mejorar la experiencia de juego, esto se debe en gran medida a la capacidad limitada en el hardware de los usuarios finales, especialmente de las consolas de juegos.…”

Section: Introductionunclassified

Acoplamiento de micro multitudes para el desarrollo de videojuegos controlados por movimiento

Rivalcoba¹,

Rodríguez²,

Degives³

et al. 2014

RCS

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“…Initially designed for video games, the low-cost and easy-to-use motion capture device has been applied in clinical gait analysis (Auvinet et al, 2012(Auvinet et al, , 2014Galna et al, 2014), human-computer interactions (Wang et al, 2013), sign-language analysis (Gameiro et al, 2014;Pedersoli et al, 2014), sport training (Cassola et al, 2014) and ergonomics (Diego-Mas and Alcaide-Marzal, 2014;Vignais et al, 2013). In ergonomics, the posture and movement of the worker provides important information for determining the risk of musculoskeletal injury in the workplace (Vieira and Kumar, 2004).…”

Section: Introductionmentioning

confidence: 99%

Usability of corrected Kinect measurement for ergonomic evaluation in constrained environment

Plantard¹,

Shum²,

Multon³

2017

IJHFMS

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Evaluation of potential risks of musculoskeletal disorders in real workstations is challenging as the environment is cluttered, which makes it difficult to correctly assess the pose of a worker. Being marker-free and calibration-free, Microsoft Kinect is a promising device to assess these poses, but it can deliver unreliable poses especially when occlusions occur. To overcome this problem, we propose to detect and correct badly recognised body parts thanks to a database of example poses. We applied the proposed method to compute rapid upper limb assessment (RULA) score in a realistic environment that involved sub-optimal Kinect placement and several types of occlusions. Results showed that when occlusions occur, the inaccurate raw Kinect data could be significantly improved using our correction method, leading to acceptable joint angles and RULA scores. Our method opens new perspectives to define new fatigue or solicitation indexes based on continuous measurement contrary to classical static images used in ergonomics.

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An immersive multi-agent system for interactive applications

Cited by 15 publications

References 24 publications

Coupling Camera-tracked Humans with a Simulated Virtual Crowd

Coupling Camera-tracked Humans with a Simulated Virtual Crowd

Acoplamiento de micro multitudes para el desarrollo de videojuegos controlados por movimiento

Usability of corrected Kinect measurement for ergonomic evaluation in constrained environment

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