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Virtual Dictionary

LOD Geometry

LOD or Level of Detail can be applied to individual geometric shapes as well as its more traditional role in deciding how much of a scene to render. In geometry, LOD can be used to dynamically reduce or enhance the number of polygons in a model based on relative distance from the view point. After all, why use 300,000 polygons to render an object that?s far off in the distance? If you are able to use less polygons without the user being aware, then you are able to pack more objects into the scene.

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This book gives senior undergraduate and beginning graduate students and researchers in computer vision, applied mathematics, computer graphics, and robotics a self-contained introduction to the geometry of 3D vision; that is the reconstruction of 3D models of objects from a collection of 2D images.

A basic problem in computer vision is to understand the structure of a physical sceene from just one or two camera?s perspective. This book attempts to provide a basic background in everything you need to know to be able to create a computer vision system, and train it to deal with the physical world.

Creating Polygonal Shapes through a Merger with Topology
By merging the traditionally distinct fields of topology and geometry, through the discovery of a new type of mathematics called persistent homology, math researchers have created a set of equations which simply describe the pattern and placement of complex fractals as part of a polygonal model - such as the unique froth on a wave, within the reach of real-time rendering

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(27/03/2008)
Most schoolchildren struggle to learn geometry, but they are still able to catch a ball without first calculating its parabola. Why should robots be any different?

A team of researchers led by Link?ping University in Sweden, ...

(07/02/2013)
Theoretical physicist Moumita Maiti and colleagues at the Jawaharlal Nehru Centre for Advanced Scientific Research in Bangalore, India, have now implemented an algorithm for analysing void space in sphere packing, where the spheres need not...

(06/04/2009)
In just over a day, a powerful computer program accomplished a feat that took physicists centuries to complete: extrapolating the laws of motion from a pendulum's swings.

Developed by Cornell researchers, the program deduced...

(21/04/2012)
It was a figurative whack on the head that started Sandia National Laboratories distinguished technical staff member Juan Elizondo-Decanini thinking outside the box -- which in his case was a cylinder.

He developed a new conf...

(17/05/2008)
(Press Release) Paris/France ? March 1st, 2007 ? Bionatics, developer of 3D plant modelling and simulation
tools for the 3D industry, announces the launch of a series of training videos for its EASYnat 3D plant modeller and dedicated...