Author : Bong-Soo Sohn, Chandrajit Bajaj, Vinay Siddavanahalli

Title : Volumetric Video Compression and Interactive Playback

Abstract :

We develop a volumetric video system which supports interactive 
browsing of compressed time-varying volumetric features ( significant 
isosurfaces and interval volumes ). Since the size of even one 
volumetric frame in a time-varying 3D data set is very large, 
transmission and on-line reconstruction are the main bottlenecks for 
interactive remote visualization of time-varying volume and surface 
data. We describe a compression scheme for encoding time-varying 
volumetric features in a unified way, which allows for on-line 
reconstruction and rendering.  To increase the run-time decompression 
speed and compression ratio, we decompose the volume into small blocks 
and encode only the significant blocks that contribute to the 
isosurfaces and interval volumes.  The results show that our 
compression scheme achieves high compression ratio with fast 
reconstruction, which is effective for interactive client-side 
rendering of time-varying volumetric features.