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SIBGRAPI
2005
IEEE
13 years 11 months ago
2005
IEEE
Shading for cel animation based on images is a recent research topic in computer-assisted animation. This paper proposes an image-based shading pipeline to give a 3D appearance to...
SIBGRAPI
2005
IEEE
13 years 11 months ago
2005
IEEE
Direct volume rendering techniques are used to visualize and explore large scalar volumes. Transfer functions (TFs) that assign opacity and color to scalar values are very importa...
SIBGRAPI
2005
IEEE
13 years 11 months ago
2005
IEEE
High-fidelity renderings of virtual environments is a notoriously computationally expensive task. One commonly used method to alleviate the costs is to adaptively sample the rend...
SIBGRAPI
2005
IEEE
13 years 11 months ago
2005
IEEE
A critical issue of applying Linear Discriminant Analysis (LDA) is both the singularity and instability of the within-class scatter matrix. In practice, particularly in image recog...
SIBGRAPI
2005
IEEE
13 years 11 months ago
2005
IEEE
We present a lossless compressor for multispectral images that exploits interband correlations. Each band is divided into blocks, to which a wavelet transform is applied. The wave...