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Ectomography: A New Radiographic Method for Reproducing a Selected Slice of Varying Thickness
n/a.
Linköping University, Department of Electrical Engineering, Computer Vision. Linköping University, The Institute of Technology.
Linköping University, Department of Biomedical Engineering, Medical Informatics. Linköping University, The Institute of Technology.ORCID iD: 0000-0002-9091-4724
n/a.
1980 (English)In: Acta Radiologica, ISSN 0284-1851, E-ISSN 1600-0455, Vol. 21, no 4, 433-442 p.Article in journal (Refereed) Published
Abstract [en]

The mathematical basis is described of a new radiographic method by which an arbitrarily thick layer of the patient may be reconstructed. The reconstruction is performed from at least 60 images of the volume under examination. Each of these images, which have to be in digital form, is subjected to a special filtration process of its spatial frequencies. The combination of all the images will form the resulting image of the layer--the ectomogram. The method has been analysed and tested in experiments simulated with a computer.

Place, publisher, year, edition, pages
1980. Vol. 21, no 4, 433-442 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-21580PubMedID: 7457172OAI: oai:DiVA.org:liu-21580DiVA: diva2:241542
Available from: 2009-10-04 Created: 2009-10-04 Last updated: 2013-08-28Bibliographically approved
In thesis
1. Filtering and reconstruction in image processing
Open this publication in new window or tab >>Filtering and reconstruction in image processing
1982 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Image processing is a broad field posing a wide range of problems. The Work presented in this dissertation is mainly concerned with filter design subjectto different criteria and constraints.

The first part describes the development of a new radiographic reconstruction method designated Ectomography. The method is novel in that it allows reconstruction of an arbitrarily thick layer of an object using limited viewing angle.

The subject of the second partis estimation and filtering of local image information. Quadrature filters are designed enabling accurate orientation and frequency estimates. The extracted information is shown to provide a good basis fo r efficient image enhancement and coding procedures.

Place, publisher, year, edition, pages
Linköping: Linköping University Electronic Press, 1982. 11 p.
Series
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 88
Keyword
Ectomography, Radiographic reconstruction method, Image processing, Elektronik
National Category
Engineering and Technology
Identifiers
urn:nbn:se:liu:diva-54890 (URN)91-7372-595-1 (ISBN)
Public defence
1982-12-17, C3, Hus C, Campus Valla, Linköpings universitet, Linköping, 09:15 (English)
Supervisors
Available from: 2010-04-19 Created: 2010-04-19 Last updated: 2013-08-28Bibliographically approved

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Granlund, GöstaKnutsson, Hans

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