Anais do IX SIBGRAPI'96 (1996), 321-328
Multiresolution Representation and Reconstruction of Adaptively Sampled Images
Lucia Darsa e Bruno Costa
IMPA e SUNYSB
lucia@visgraf.impa.br
- Abstract:
-
We present a method for sampling, structuring and reconstructing
progressively refined images effectively. This has direct
applications to progressive refinement of the result of slow
renderers, such as ray tracers, and to the progressive transmission
of images on slow media, as in world wide web browsers. Sampling
images adaptively with respect to frequency at the back end provides
a more compact representation. These samples are then structured at
the front end using Voronoi or Delaunay tesselations, and
reconstructed with $C^0$ continuity taking advantage of standard 3D
acceleration hardware. The structuring scheme is extended to handle
multiresolution images, with optional antialiasing, allowing the
representation of an arbitrary level of detail without penalizing the
reconstruction.
- Full Version:
in Acrobat PDF (261 Kb), and
in Postscript gzipped (774 Kb)
- Additional Material:
-
Read-me.