Sökning: "octree data structure"

Hittade 3 avhandlingar innehållade orden octree data structure.

  1. 1. Sparse Voxel DAGs for Shadows and for Geometry with Colors

    Författare :Dan Dolonius; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; directed acyclic graph; octree; compression; voxel; geometry; shadows; colors;

    Sammanfattning : Triangles are probably the most common format for shapes in computer graphics. Nevertheless, when high detail is desired, Sparse Voxel Octrees (SVO) and Sparse Voxel Directed Acyclic Graphs (DAG) can be considerably more memory efficient. One of the first practical use cases for DAGs was to use the structure to represent precomputed shadows. LÄS MER

  3. 2. Exploiting Coherence in Voxelized Geometry

    Författare :Viktor Kämpe; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; time-varying; directed acyclic graph; geometry; voxel; octree;

    Sammanfattning : In computer graphics, the geometry of virtual worlds can be represented in numerousways, from collections of simple triangles or voxels to higher-order primitives likecurved surfaces. There is a trade-off, both in terms of memory consumption and processingtime, between the cost of an individual primitive and the number of primitivesrequired to faithfully represent the world. LÄS MER

  4. 3. Range Camera Imaging : From Human Body Measurements to Very Large 3D Points Scenes Visualization

    Författare :Gaël Neuez; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 3D visualization; EASYTEX; anatomical landmarks; body scanner; range camera; 2D image projections; structured light; octree data structure;

    Sammanfattning : The use of camera range imaging for the purpose of 3-dimensional representation and non-contact measures is widely used in industry, medicine, computer-aided design and other areas. Different range imaging methods can be applied, such as stereo, laser sheet of light, and structured light. LÄS MER