Error-bounded lossy compression of floating-point color buffers using quadtree decomposition
Författare
Summary, in English
In this paper, we present a new color buffer compression algorithm for floating-point buffers. It can operate in either an approximate (lossy) mode or in an exact (lossless) mode. The approximate mode is error-bounded and the amount of introduced accumulated error is controlled via a few parameters. The core of the algorithm lies in an efficient representation and color space transform, followed by a hierarchical quadtree decomposition, and then hierarchical prediction and Golomb-Rice encoding. We believe this is the first lossy compression algorithm for floating-point buffers, and our results indicate significantly reduced color buffer bandwidths and negligible visible artifacts.
Avdelning/ar
Publiceringsår
2010
Språk
Engelska
Sidor
17-30
Publikation/Tidskrift/Serie
Visual Computer
Volym
26
Issue
1
Dokumenttyp
Artikel i tidskrift
Förlag
Springer
Ämne
- Computer Science
Nyckelord
- Texture compression
- Lossy compression
- Color buffer compression
- Real-time
- High dynamic range
- Quadtree
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0178-2789