Essays about: "Oskar Wretstam"

Found 2 essays containing the words Oskar Wretstam.

1. 1. Infrared image-based modeling and rendering

   University essay from Uppsala universitet/Avdelningen för visuell information och interaktion

   Author : Oskar Wretstam; [2017]
   Keywords : scene reconstruction; structure from motion; multi-view stereo; image-based modeling; infrared thermography; infrared images; computer vision;

   Abstract : Image based modeling using visual images has undergone major development during the earlier parts of the 21th century. In this thesis a system for automated uncalibrated scene reconstruction using infrared images is implemented and tested. An automated reconstruction system could serve to simplify thermal inspection or as a demonstration tool. READ MORE

3. 2. Comparison of accelerated recursive polynomial expansions for electronic structure calculations

   University essay from

   Author : Carl Joneus; Oskar Wretstam; Filip Enander; [2015]
   Keywords : Electronic structure calculations; Density matrix; Polynomial expansion; Purification;

   Abstract : In electronic structure calculations the computational cost is of great importance because large systems can contain a huge number of electrons. One effective method to make such calculations is by density matrix purification. Although, the cost for this method is relatively low compared to other existing methods there is room for improvements. READ MORE