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Research on LOD in Visual Reality

Author: CuiLei
Tutor: WangQuan
School: Xi'an University of Electronic Science and Technology
Course: Computer System Architecture
Keywords: Virtual Reality LOD QEM Curvature
CLC: TP391.9
Type: Master's thesis
Year: 2008
Downloads: 175
Quote: 5
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Abstract


Virtual reality (VR) technology is now very popular research topic , it involves graphics, artificial intelligence , sensor technology , and visual physiology and psychology , including related disciplines , and are widely used . One of the most critical technology of virtual reality technology is a real-time display of LOD ( Level of Details, LOD Model) technology . QEM (Quadric Error Metrics) is the the LOD techniques currently the most commonly used algorithm . Paper for triangular mesh simplification QEM algorithm simplified grid model local feature lost , based on the introduction of the QEM the new simplified algorithm , algorithms the curvature calculated optimize factor to improve the display quality of the simplified model , better simplified . Display speed , the paper also the dynamic LOD key technologies for progressive mesh and BSP ( BinarySpace Partitioning Tree) studied the progressive mesh algorithms into improved QEM simplification algorithm , combined with the BSP technology to display polygon control the number , the obtain more ideal display speed .

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Computer simulation
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