Most existing image coding techniques resolve the uncertainty of an image source on a pixel-by-pixel basis. In this paper, we demonstrate the effectiveness of region-based image models for the class of palette images. We propose to represent the index map of a palette image by a collection of successively refined color regions, from which the original index map can be reconstructed without any ...

The Surface Evolver was used to calculate the equilibrium microstructure of random monodisperse soap froth, starting from Voronoi partitions of randomly packed spheres. The sphere packing has a strong influence on foam properties, such as E (surface free energy) and (average number of faces per cell). This means that random foams composed of equal-volume cells come in a range of structures ...

Most existing image coding techniques resolve the uncertainty of an image source on a pixel-by-pixel basis. In this paper, we demonstrate the effectiveness of region-based image models for the class of palette images. We propose to represent the index map of a palette image by a collection of successively refined color regions, from which the original index map can be reconstructed without any ...

In-plane deformation of foams was studied experimentally by subjecting bidisperse foams to cycles of traction and compression at a prescribed rate. Each foam contained bubbles of two sizes with given area ratio and one of three initial arrangements: sorted perpendicular to the axis of deformation (iso-strain), sorted parallel to the axis of deformation (iso-stress), or randomly mixed. Image ana...

Post-compression of ultra-short laser pulses via self-phase modulation is routinely employed for the generation with optical bandwidths reaching far beyond gain limitations. Although high compression factors can be achieved, compressed typically suffer from temporal quality degradation. We numerically and experimentally analyze deterioration different measures increasing factor show how appropr...

in this paper, the notion of fuzzy semicompactness degrees isintroduced in $l$-fuzzy topological spaces by means of theimplication operation of $l$. characterizations of fuzzysemicompactness degrees in $l$-fuzzy topological spaces  areobtained, and some properties of fuzzy semicompactness degrees areresearched.