High-quality networked terrain rendering from compressed bitstreams

• DOI: 10.1145/1229390.1229396
• Publication Date: 2007-06-06T14:37:31Z
• Authors: Fabio Bettio; Enrico Gobbetti; Fabio Marton; Giovanni Pintore
• Keywords: Image stitching

We describe a compressed multiresolution representation and client-server architecture for supporting interactive high quality remote visualization of very large textured planar spherical terrains. Our approach incrementally updates chunked level-of-detail BDAM hierarchy by using precomputed wavelet coefficient matrices decoded from bitstream originating thin server. The structure combines the aggressive compression rates wavelet-based image representations with ability to ensure overall geometric continuity variable resolution views terrains no need run-time stitching. efficiency is demonstrated on scale global local ADSL networks. A library implementing an early version this work has been incorporated into widely distributed geo-viewing system tens thousands clients.