Search for dissertations about: "rotation invariant"

Showing result 1 - 5 of 17 swedish dissertations containing the words rotation invariant.

2. 1. Analysis of the phase space, asymptotic behavior and stability for heavy symmetric top and tippe top

   Author : Markus Sköldstam; Stefan Rauch-Wojciechowski; Torkel Glad; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; symmetric top; tippe top; vertical rotation; truncated sphere; asymptotic trajectories; MATHEMATICS; MATEMATIK;

   Abstract : In this thesis we analyze the phase of the heavy symmetric top and the tippe top. These tops are two examples of physical systems for which the usefulness of integrals of motion and invariant manifolds, in phase space picture analysis, can be illustratedIn the case of the heavy symmetric top, simplified proofs of stability of the vertical rotation have been perpetuated by successive textbooks during the last century. READ MORE

4. 2. Low Level Operations and Learning in Computer Vision

   Author : Björn Johansson; Gösta Granlund; Rudolf Mester; Linköpings universitet; []
   Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

   Abstract : This thesis presents some concepts and methods for low level computer vision and learning, with object recognition as the primary application.An efficient method for detection of local rotational symmetries in images is presented. Rotational symmetries include circle patterns, star patterns, and certain high curvature patterns. READ MORE

5. 3. Compact Representations and Multi-cue Integration for Robotics

   Author : Robert Söderberg; Klas Nordberg; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical engineering; bin picking application; detection and representation of local features; pose estimation; multi-cue integration; Elektroteknik; Electrical engineering; Elektroteknik;

   Abstract : This thesis presents methods useful in a bin picking application, such as detection and representation of local features, pose estimation and multi-cue integration.The scene tensor is a representation of multiple line or edge segments and was first introduced by Nordberg in [30]. READ MORE

6. 4. Interest Curves : Concept, Evaluation, Implementation and Applications

   Author : Bo Li; Ulrik Söderström; Haibo Li; Björn Kruse; Umeå universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; scale-invariance; edge; corner; curve; line; matching; object detection; signalbehandling; Signal Processing;

   Abstract : Image features play important roles in a wide range of computer vision applications, such as image registration, 3D reconstruction, object detection and video understanding. These image features include edges, contours, corners, regions, lines, curves, interest points, etc. READ MORE

7. 5. Automatic Virus Identification using TEM : Image Segmentation and Texture Analysis

   Author : Gustaf Kylberg; Ida-Maria Sintorn; Gunilla Borgefors; Walter Kropatsch; Uppsala universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; image analysis; image processing; virus identification; transmission electron microscopy; texture analysis; texture descriptors; Computerized Image Processing; Datoriserad bildbehandling;

   Abstract : Viruses and their morphology have been detected and studied with electron microscopy (EM) since the end of the 1930s. The technique has been vital for the discovery of new viruses and in establishing the virus taxonomy. Today, electron microscopy is an important technique in clinical diagnostics. READ MORE