Sökning: "normalized cut"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden normalized cut.

  1. 1. Salient Region Detection Methods with Application to Traffic Sign Recognition from Street View Images

    Författare :Keren Fu; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; normalized cut; traffic sign recognition; saliency propagation; color distribution; continuous conditional random field; manifold; Salient region detection; adaptive graph edge weights; color contrast; geodesics;

    Sammanfattning : In the computer vision community, saliency detection refers to modeling the selective mechanism in human visual attentions. Outputs of saliency detection algorithms are called saliency maps, which represent conspicuousness levels of different scene areas. LÄS MER

  3. 2. Global Optimization in Computer Vision: Convexity, Cuts and Approximation Algorithms

    Författare :Carl Olsson; Matematik LTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Spectral Relaxation; Normalized Cuts; Continuous Cuts; Segmentation; Generalized Convexity; 3D-Reconstruction; Global Optimization; Multiple View Geometry; Trust Region Subproblem;

    Sammanfattning : Computer vision is today a wide research area including topics like robot vision, image analysis, pattern recognition, medical imaging and geometric reconstruction problems. Over the past decades there has been a rapid development in understanding and modeling different computer vision applications. LÄS MER

  4. 3. On evaluation of organ damage in perinatal asphyxia : an experimental and clinical study

    Författare :Mathias Karlsson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Perinatal asphyxia; hypoxia-ischemia; hypothermia; pig; lactate dehydrogenase; aminotransferases;

    Sammanfattning : Leakage of intracellular enzymes such as alanine aminotransferase (ALT), aspartate aminotransferase (AST) and lactate dehydrogenase (LDH) signalling multi organ dysfunction (MOD) is seen together with hypoxic ischemic encephalopathy (HIE) after perinatal asphyxia. Hypothermia (HT) can attenuate HIE following perinatal asphyxia and hypoxia-ischemia (HI) but the neuroprotective efficacy falls dramatically the longer the delay in initiating HT. LÄS MER

  5. 4. Rhonchopathy : long-term clinical results after palatal surgery

    Författare :Michael Lysdahl; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Snoring; sleep apnea; driving; accidents; mortality; uvulopalatopharyngoplasty; uvulopalatoplasty; laser surgery; oximetry.;

    Sammanfattning : Up to one third of Swedish middle-aged men snore habitually, disturbing their surroundings. More than 5% suffer from medical rhonchopathy combining snoring with obstructive breathing and fragmented sleep. LÄS MER

  7. 5. Chemical and Morphological Characterisation of Aerosol Particles in the Tropopause Region

    Författare :Hung Nguyen Ngoc; Kärnfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; CARIBIC; Physics; Singel particle analysis TEM and EFTEM; Carbon and Sulphur; Light element analysis; Aerosol sampler; Chemical Characterisation; Aerosol in the Tropopause Region; Nuclear physics; Technological sciences; Fysik; Teknik; Kärnfysik; Fysicumarkivet A:000;

    Sammanfattning : The aim of this work was to study atmospheric aerosols, focusing on the chemical composition, the morphology and the origin of the aerosol in the upper troposphere and lowermost stratosphere. An aerosol sampler was developed for this purpose. A new method for quantitative analysis of the major components of the aerosol, i.e. LÄS MER