filename     : p_Wue03.pdf 
entry        : inproceedings
pages        : 181-193 
year         : 2003
title        : 3D Video Recorder: A System for Recording and Playing Free-Viewpoint Video
author       : Stephan Wuermlin and Edouard Lamboray and Oliver G. Staadt and Markus H. Gross.
booktitle    : Computer Graphics Forum 22 (2)
editor       : David Duke and Roberto Scopigno(eds.)
publisher    : Blackwell Publishing Ltd, Oxford, U.K.
language     : English
month        : June
keywords     : Point-Based Rendering, Object Reconstruction, 
               Three-Dimensional Video, Compression
abstract     : 
We present the 3D Video Recorder, a system capable of recording, processing,
and playing three-dimensional video from multiple points of view. We first 
record 2D video streams from several synchronized digital video cameras and 
store pre-processed images to disk. An off-line processing stage converts these 
images into a time-varying three-dimensional hierarchical point-based data 
structure and stores this 3D video to disk. We show how we can trade-off 3D 
video quality with processing performance and devise efficient compression and 
coding schemes for our novel 3D video representation. A typical sequence is 
encoded at less than 7 megabit per second at a frame rate of 8.5 frames per 
second. The 3D Video Player decodes and renders 3D videos from hard-disk in 
real-time, providing interaction features known from common video cassette 
recorders, like variable-speed forward and reverse, and slow motion. 3D video 
playback can be enhanced with novel 3D video effects such as freeze-and-rotate 
and arbitrary scaling. The player builds upon point-based rendering techniques 
and is thus capable of rendering high-quality images in real-time. Finally, we 
demonstrate the 3D Video Recorder on multiple real-life video sequences.