Sökning: "tetrahedra"

Hittade 3 uppsatser innehållade ordet tetrahedra.

1. 1. Cutting Tetrahedra : Affordances and Limitations of Using Virtual Reality Visualization for Tetrahedral Cutting

   Master-uppsats, KTH/Skolan för datavetenskap och kommunikation (CSC)

   Författare :Mattias Lönnerberg; [2017]
   Nyckelord :virtual reality; tetrahedra; 3d-cutting; spatial comprehension;

   Sammanfattning : Finite element method researchers aim to create algorithms for optimally cutting complex 3D shapes into several tetrahedra for computational efficiency in simulations. It is difficult to create a mental representation of the 3D shapes as they increase in complexity. LÄS MER

3. 2. Component Meshing Methodology

   Magister-uppsats, Institutionen för ekonomisk och industriell utveckling

   Författare :Henrik Öhrblad; Henrik Berglund; [2008]
   Nyckelord :distortion; mesh quality; FEM; tetrahedra; solid elements; SimLab; sensitivity study;

   Sammanfattning : In order to achieve results that are reliable when using the finite element method one has to use an acceptable element mesh with respect to the shape and size of the elements. As a help to produce an acceptable mesh there are quality criteria that must be fulfilled in most pre-processors. LÄS MER

4. 3. Volume Estimation of Airbags: A Visual Hull Approach

   Uppsats för yrkesexamina på grundnivå, Institutionen för systemteknik

   Författare :Manne Anliot; [2005]
   Nyckelord :Bildanalys; Airbag Reconstruction; Volume Estimation; Visual Hull; Pinhole Camera Model; Simulated Annealing; Delaunay Triangulation; Best-Camera-Pose; Bildanalys;

   Sammanfattning : This thesis presents a complete and fully automatic method for estimating the volume of an airbag, through all stages of its inflation, with multiple synchronized high-speed cameras. Using recorded contours of the inflating airbag, its visual hull is reconstructed with a novel method: The intersections of all back-projected contours are first identified with an accelerated epipolar algorithm. LÄS MER