tessella

Definitions

  • WordNet 3.6
    • n tessella a small tessera
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Century Dictionary and Cyclopedia
    • n tessella Same as tessera.
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Usage


In science:

Voronoi tessellation; (e) radial velocity field: values exactly correspond to the Voronoi tessellae; (f ) velocity dispersion field, interpolated.
Formation and Evolution of Dwarf Elliptical Galaxies
We use the term tessella to refer to a set of pixels on the spherical surface, which are projected from all pixels within a square on a plane.
Accelerated direct demodulation method for image reconstruction with spherical data from Hard X-ray Modulation Telescope
Hence it suggests that we divide the problem pixelization of a whole spherical surface into two problems, pixelization of any small region of the spherical surface and tessellation of the whole spherical surface using tessellae of pixels.
Accelerated direct demodulation method for image reconstruction with spherical data from Hard X-ray Modulation Telescope
Generally speaking there should not be overlaps or gaps between adjacent tessellae, however, since we will not perform numerical evaluations on different tessellae in the same time, overlaps only make evaluations on pixels of the overlaps redundant.
Accelerated direct demodulation method for image reconstruction with spherical data from Hard X-ray Modulation Telescope
Since all tessellae have the same area and shape, we can generate a set of pixels (i.e. a tessella) around the null position of the spherical surface and rotate this initial tessella to a series of positions to cover the whole sphere.
Accelerated direct demodulation method for image reconstruction with spherical data from Hard X-ray Modulation Telescope
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