Tight packaging for digitized surfaces.In recent years, techniques for compressing two-dimensional images, such as photos, have become highly sophisticated. Digitally specifying every detail of a complicated, three-dimensional surface, however, continues to put a tremendous strain on a computer's resources for data storage, manipulation, and transmission. That may change. At last month's SIGGRAPH (Special Interest Group on Computer Graphics, www.siggraph.org) The arm of the ACM that specializes in computer graphics and interactive techniques. Providing publications, workshops and conferences, it has served technicians and researchers as well as the artist and business community conference in New Orleans New Orleans (ôr`lēənz –lənz, ôrlēnz`), city (2006 pop. 187,525), coextensive with Orleans parish, SE La., between the Mississippi River and Lake Pontchartrain, 107 mi (172 km) by water from the river mouth; founded , computer scientists at Bell Laboratories in Murray Hill, N.J., and the California Institute of Technology California Institute of Technology, at Pasadena, Calif.; originally for men, became coeducational in 1970; founded 1891 as Throop Polytechnic Institute; called Throop College of Technology, 1913–20. in Pasadena described a technique that would make it practical to transmit detailed three-dimensional data over the Internet and to work with the information on a personal computer. (See http://cm.belllabs.com/who/wim/papers/compression/index.html.) The technique uses various meshes of triangles to represent surfaces and includes a novel application of so-called wavelet (mathematics) wavelet - A waveform that is bounded in both frequency and duration. Wavelet tranforms provide an alternative to more traditional Fourier transforms used for analysing waveforms, e.g. sound. transformations, which are often used to streamline image processing. |
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