HapticV1, Main, Merge, bibRecord, 006936

Haptic interaction with depth video media

Identifieur interne : 006936 ( Main/Merge ); précédent : 006935; suivant : 006937

Haptic interaction with depth video media

Auteurs : Jongeun Cha [Corée du Sud] ; Seung-Man Kim [Corée du Sud] ; Ian Oakley [Corée du Sud] ; Jeha Ryu [Corée du Sud] ; Kwan H. Lee [Corée du Sud]

Source :

Lecture notes in computer science [ 0302-9743 ] ; 2005.

RBID : Pascal:06-0051619

Descripteurs français

Pascal (Inist)
- Multimédia, Signal vidéo, Vision ordinateur, Réalité virtuelle, Acoustique audio, Reproduction son, Image couleur, Animation par ordinateur, Infographie, Rendu image, Antémémoire, Serveur informatique, Mise à jour, Sensibilité tactile, Illusion, Sensation, Appareil visuel, Système paramètre variable, ., Transmission en continu.
Wicri :
- topic : Multimédia, Réalité virtuelle.

English descriptors

KwdEn :
- Audio acoustics, Cache memory, Color image, Computer animation, Computer graphics, Computer server, Computer vision, Illusion, Image rendering, Multimedia, Sensation, Sound reproduction, Streaming, Tactile sensitivity, Time varying system, Updating, Video signal, Virtual reality, Visual system.

Abstract

In this paper we propose a touch enabled video player system. A conventional video player only allows viewers to passively experience visual and audio media. In virtual environment, touch or haptic interaction has been shown to convey a powerful illusion of the tangible nature - the reality - of the displayed environments and we feel the same benefits may be conferred to a broadcast, viewing domain. To this end, this paper describes a system that uses a video representation based on depth images to add a haptic component to an audio-visual stream. We generate this stream through the combination of a regular RGB image and a synchronized depth image composed of per-pixel depth-from-camera information. The depth video, a unified stream of the color and depth images, can be synthesized from a computer graphics animation by rendering with commercial packages or captured from a real environment by using a active depth camera such as the Zcam<^TM>. In order to provide a haptic representation of this data, we propose a modified proxy graph algorithm for depth video streams. The modified proxy graph algorithm can (i) detect collisions between a moving virtual proxy and time-varying video scenes, (ii) generates smooth touch sensation by handling the implications of the radically different display update rates required by visual (30Hz) and haptic systems (in the order of 1000Hz), (iii) avoid sudden change of contact forces. A sample experiment shows the effectiveness of the proposed system.

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Pascal:06-0051619

Le document en format XML

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<front><div type="abstract" xml:lang="en">In this paper we propose a touch enabled video player system. A conventional video player only allows viewers to passively experience visual and audio media. In virtual environment, touch or haptic interaction has been shown to convey a powerful illusion of the tangible nature - the reality - of the displayed environments and we feel the same benefits may be conferred to a broadcast, viewing domain. To this end, this paper describes a system that uses a video representation based on depth images to add a haptic component to an audio-visual stream. We generate this stream through the combination of a regular RGB image and a synchronized depth image composed of per-pixel depth-from-camera information. The depth video, a unified stream of the color and depth images, can be synthesized from a computer graphics animation by rendering with commercial packages or captured from a real environment by using a active depth camera such as the Zcam<<sup>TM</sup>
>. In order to provide a haptic representation of this data, we propose a modified proxy graph algorithm for depth video streams. The modified proxy graph algorithm can (i) detect collisions between a moving virtual proxy and time-varying video scenes, (ii) generates smooth touch sensation by handling the implications of the radically different display update rates required by visual (30Hz) and haptic systems (in the order of 1000Hz), (iii) avoid sudden change of contact forces. A sample experiment shows the effectiveness of the proposed system.</div>
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	Serveur d'exploration sur les dispositifs haptiques
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Serveur d'exploration sur les dispositifs haptiques

Haptic interaction with depth video media

Haptic interaction with depth video media

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri