Search for dissertations about: "Digital geometry"

Showing result 6 - 10 of 158 swedish dissertations containing the words Digital geometry.

  2. 6. Digital lines, Sturmian words, and continued fractions

    Author : Hanna Uscka-Wehlou; Christer Oscar Kiselman; Maciej Klimek; Gunilla Borgefors; Mikael Passare; Damien Jamet; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; digital geometry; digital line; hierarchy of runs; combinatorics on words; Sturmian word; upper mechanical word; characteristic word; irrational slope; continued fraction; Gauss map; fixed point; Discrete mathematics; Diskret matematik; matematik; Mathematics;

    Abstract : In this thesis we present and solve selected problems arising from digital geometry and combinatorics on words. We consider digital straight lines and, equivalently, upper mechanical words with positive irrational slopes a... READ MORE

  4. 7. Digital straight line segments and curves

    Author : Shiva Samieinia; Stockholms universitet; []
    Keywords : Digital geometry; digital straight line segments; chord property; Khalimsky-continuous function.;

    Abstract : This thesis consists of two papers:Paper A. Chord properties of digital straight line segments.This paper treats digital straight line segments in two different cases, in the 8-connected plane and in the Khalimsky plane. We investigate them using a new classification, dividing them into a union of horizontal and diagonal segments. READ MORE

  5. 8. Digital Mammography with a Photon Counting Detector in a Scanned Multislit Geometry

    Author : Magnus Åslund; Mats Danielsson; Ehsan Samei; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; mammography; digital; photon counting; scanning; detective quantum effciency; scattered radiation; automatic exposure control; Physics; Fysik;

    Abstract : Mammography screening aims to reduce the number of breast cancer deaths by early detection of the disease, which is one of the leading causes of deaths for middle aged women in the western world. The risk from the x-ray radiation in mammography is relatively low but still a factor in the benefit-risk ratio of screening. READ MORE

  6. 9. Towards a Digital Twin for Individualized Manufacturing of Welded Aerospace Structures

    Author : Hugo Hultman; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; digital twin; non-nominal welding simulation; geometry assurance;

    Abstract : The aerospace industry is constantly striving towards lower fuel consumption while maintaining a high standard with regards to safety and reliability. These increasing demands require the development of new methods and strategies for efficient and precise manufacturing processes. READ MORE

  7. 10. Localization, supersymmetric gauge theories and toric geometry

    Author : Jacob Winding; Maxim Zabzine; Sara Pasquetti; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Supersymmetry; gauge theory; localization; toric geometry; Theoretical Physics; Teoretisk fysik;

    Abstract : Gauge theories is one of the most pervasive and important subject of modern theoretical physics, and there are still many things about them we do not understand. In particular dealing with strongly coupled theories where normal perturbative techniques do not apply is a fundamental open problem. READ MORE