Dissertation > Excellent graduate degree dissertation topics show

3D model simplification algorithm demo platform

Author: WuXianYao
Tutor: YuanYan
School: Central South University
Course: Computer Science and Technology
Keywords: mesh simpilification edge collapse level of detail OpenGL progressive mesh
CLC: TP391.41
Type: Master's thesis
Year: 2010
Downloads: 101
Quote: 0
Read: Download Dissertation


In the fields such as computer graphics, virtual reality, scientific calculation visualization and so on, things are always related to interactive display and real-time rendering of complicated three-dimensional model. With the necessary of highly detailed geometric models as well as models and gometric scenes, it brought remendous pressure to computer storage capacity, computing speed and the rendering times. For solving such problems effectively, we can simplify the three-dimensional models and generate multiple levels of details.Throug using proper algorithms, mesh simplification reduces the use of appropriate patches of model numbers, the number of edges and vertices, with a smaller number of polygons to retain its shape, appearance and other most important features, reducing the complexity of the model. However, it is effective to control the complexity of the secnes and accelerate the speed of graphics rendering with supplying different levels of details for models. That is effective methods, which solve complex scenes and computer competency, graphic capabilities do not match real-time control system.This dissertation studied the technology and algorithm on mesh simplification of existing. A new simplified algorithm based on Quadric Error Matrix using Local Center of Gravity Measure of vertex was introduced. This algorithm based on triangle vertices to the set of adjacent triangles from the center of the square serve as error metrics, combining with LOD techniques to construct various levels of details, and introducing a new method to resolve the twoness problem of progressive mesh construction.In addition, we make application of mesh simpilification using VS 2005 and OpenGL, this software can process the model scenes.PLY form. It integrated the new algorithm and compared with QEM algorithm. The experiment has proved its validity. This algorithm brings new collapse price to allocate network grid rationally, change the order of collapse and maintain the model of visual features, and moreover, it can reduce the visual degradation and accelerate the speed.

Related Dissertations

  1. Design and Implementation of Human Brain Anatomical Atlas,TP391.41
  2. Training Program and Rehabilitative Effect Appraisal of Lower Limbs Rehabilitative Robot,R49
  3. Design and Implementation of the Growing Visualization System for Wheat Population,S512.1
  4. The Morphological Structural Model and Visualization of Rapeseed (Brassica Napus L.) Plant,S565.4
  5. Research on CNC Milling System,TG547
  6. The Design and Implementation of Virtual Experiment of the Chemical Liquid and Metal Reaction Based on OpenGL,TP311.52
  7. Design and Implementation of Chemical Liquid Dumping Virtual Simulation Experiment Based on OpenGL,TP391.9
  8. The Anisotropic Etching Simulation of Silicon Based on Cellular Automata Model,TB304
  9. Research on Teaching System of Engineering Drawing Base on the Digitalized Technique,TB23-4
  10. The Research of Real-time Shadow Algorithms Based on OpenGL,TP391.41
  11. Research on Sheet Metal CNC Cutting 3D Simulation,TG48
  12. Research on Evaluation of Knitted Fabric Pilling Grade Based on Three-Dimensional Scanning Technoligy,TP391.41
  13. Research of Reconstruction and Camera Pose Estimation on Mobile Phone,TP391.9
  14. Based on DirectShow and OpenGL video communication software design and implementation,TN919.8
  15. Large Radio Telescope active surface system control software development,TH751
  16. Robot-assisted upper limb rehabilitation study of virtual reality training system,TP391.9
  17. LED-based light-field scanning three-dimensional display technology and simulation reduction,TP391.41
  18. Based on a sample study of the finite element mesh model optimization,TB114
  19. Android-based multi- effects camera design and implementation,TP391.41
  20. Research and Development on Compressor Oriented Modal Analysis System,TP311.52
  21. OpenGL-based three-dimensional model of the mechanical parts distributed WEB browsing system,TH122

CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Image recognition device
© 2012 www.DissertationTopic.Net  Mobile