Search for dissertations about: "Radiographic reconstruction method"

Found 4 swedish dissertations containing the words Radiographic reconstruction method.

  2. 1. Filtering and reconstruction in image processing

    Author : Hans Knutsson; Gösta Grandlun; Linköpings universitet; []
    Keywords : Ectomography; Radiographic reconstruction method; Image processing; Elektronik; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Image processing is a broad field posing a wide range of problems. The Work presented in this dissertation is mainly concerned with filter design subject to different criteria and constraints.The first part describes the development of a new radiographic reconstruction method designated Ectomography. READ MORE

  4. 2. Detection and 3-D positioning of small defects using digital radiography, 3-D point reconstruction, and tracking

    Author : Erik Lindgren; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Pore Defects; Radiographic Testing; Nondestructive Evaluation; Laser Welded Titanium; Multiple Hypothesis Tracking; X-ray Testing;

    Abstract : The weight and quality concerned aero industry is constantly trying to decrease the excess material in their components. With decreased weight the fuel consumption can be lowered and the negative environmental effects from aviation decreased. READ MORE

  5. 3. Optimisation of radiographic imaging by means of factorial experiments

    Author : Eva Norrman; Jan Persliden; Andreas Oberstedt; Bertil Axelsson; Örebro universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; Fysik; Physics;

    Abstract : In the optimisation process of radiographic imaging, factorial designed experiments can be applied. The parameters (factors) are varied together instead of one at a time, making it possible to discover interactions between the factors as well as main influences of them on the result variable. READ MORE

  6. 4. Cone Beam Computed Tomography - radiation dose and image quality assessments

    Author : Sara Lofthag-Hansen; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cone beam computed tomography; anatomic landmarks; dose-area product; image quality; implant planning; periapical diagnosis; radiation dosimetry;

    Abstract : Diagnostic radiology has undergone profound changes in the last 30 years. New technologies are available to the dental field, cone beam computed tomography (CBCT) as one of the most important. READ MORE