Accession Number:

AD1158289

Title:

Compact Representation of Reflectance Fields using Clustered Sparse Residual Factorization

Descriptive Note:

[Technical Report, Technical Report]

Corporate Author:

UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES

Report Date:

2009-01-01

Pagination or Media Count:

11

Abstract:

We present a novel compression method for fixed viewpoint reflectance fields, captured for example by a Light Stage. Our compressed representation consists of a global approximation that exploits the similarities between the reflectance functions of different pixels, and a local approximation that encodes the per-pixel residual with the global approximation. Key to our method is a clustered sparse residual factorization. This sparse residual factorization ensures that the per-pixel residual matrix is as sparse as possible, enabling a compact local approximation. Finally, we demonstrate that the presented compact representation is well suited for high-quality real-time rendering.

Subject Categories:

  • Cybernetics

Distribution Statement:

[A, Approved For Public Release]