BOUATOUCH, Kadi; POINT, Gérald; THOMAS, Gwenola

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BOUATOUCH, Kadi
Computer generated images, animation, modeling and simulation [SIAMES]

POINT, Gérald
Visualization and manipulation of complex data on wireless mobile devices [IPARLA]
Laboratoire Bordelais de Recherche en Informatique [LaBRI]

THOMAS, Gwenola
Visualization and manipulation of complex data on wireless mobile devices [IPARLA]
Laboratoire Bordelais de Recherche en Informatique [LaBRI]

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Rapport

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2005p. 29

Résumé en anglais

This report shows how to use IBR methods to make possible the rendering of complex scenes on a mobile terminal, such as a PDA, while using a client/ server architecture. The PDA represents the client of a server which computes a very small set of key images (to avoid latency time that would affect interactivity) of a complex 3D scene and transmits them on demand to the client across a low bandwidth network. The client utilizes these images to use a warping technique to compute new images as seen by intermediate cameras (using an IBR technique) whose positions and directions are chosen interactively by the user by moving the stylus of a PDA. The most difficult problem is how to place the cameras (capturing the key images) which allow an efficient warping avoiding artifacts, such as holes, due to occlusions and exposures. Providing a general solution to the problem of camera placement is a hard task. In this report we address only the case of urban scenes.< Réduire

Mots clés en anglais

CLIENT/SERVER

3D SCENES RENDERING

WARPING

IMAGE BASED RENDERING

LOW-BANDWIDTH NETWORK

PDA

CAMERA PLACEMENT

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A Client-Server Approach to Image-Based Rendering on Mobile Terminals

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Résumé en anglais

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