Sökning: "gray scale"

Visar resultat 6 - 10 av 21 avhandlingar innehållade orden gray scale.

  1. 6. Computerized Alignment and Deformation Correction of Microscopic Serial Section Images of Nervous Tissue

    Författare :Tomas Jansson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis describes an investigation into digital techniques for image alignment and deformation correction with special reference to serial light and electron microscopic images. These techniques are applied in three-dimensional (3D) reconstruction of nervous tissue, especially the superficial gray matter of the brain - cortex cerebri. LÄS MER

  3. 7. Ultrasound Image Analysis for Automated Classification of Atherosclerotic Plaque in the Human Carotid Artery

    Författare :Peter Holdfeldt; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; classification; dynamic programming; carotid artery; Java program; image segmentation; ultrasound images; intima-media thickness; atherosclerotic plaque;

    Sammanfattning : Cardiovascular diseases, caused by atherosclerosis, is one of the most common causes of death in the industrialized world. Two risk factors, that both can be assessed with ultrasound, are the Intima-Media Thickness (IMT) in the arterial wall and the composition of the atherosclerotic plaque. LÄS MER

  4. 8. Quantifying neurodegeneration from medical images with machine learning and graph theory

    Författare :Gustav Mårtensson; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Neurodegeneration (or brain atrophy) is part of the pathological cascade of Alzheimer’s disease (AD) and is strongly associated with cognitive decline. In clinics, atrophy is measured through visual assessments of specific brain regions on medical images according to established rating scales. LÄS MER

  5. 9. Comparative studies of modern methods for caries detection and quantification

    Författare :Xie-Qi Shi; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : In clinical dentistry proper treatment of caries lesions is highly dependent on diagnostic accuracy. Aim: The present dissertation aimed at the evaluation and comparisons between several modem methods for caries detection and quantification. LÄS MER

  7. 10. Compact Representations and Multi-cue Integration for Robotics

    Författare :Robert Söderberg; Klas Nordberg; Linköpings universitet; []
    Nyckelord :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;

    Sammanfattning : 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]. LÄS MER