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  • 1
    ISSN: 1432-2315
    Keywords: Computer tomography ; Magnetic resonance imaging ; Ray-casting algorithm ; Voxel
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract Multi-slice images obtained from computer tomography and magnetic resonance imaging represent a 3D image volume. For its visualization we use a raycasting algorithm working on a gray-scale voxel data model. This model is extended by additional attributes such as membership to an organ or a second imaging modality (“generalized voxel model”). It is shown that the combination of different surface-rendering algorithms together with cutting and transparent display allow a realistic visualization of the human anatomy.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Informatik-Spektrum 10 (1987), S. 192-204 
    ISSN: 1432-122X
    Keywords: Digitale Bildverarbeitung ; Computer-Graphik ; dreidimensionale Darstellung ; medizinische Diagnostik ; Computertomographie ; Kernspintomographie ; Digital image processing ; Computer graphics ; Three-dimensional display ; Medical diagnostics ; Computer tomography ; Magnetic resonance tomography ; I.4 ; J.3
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Description / Table of Contents: Summary The classical imaging modalities in medicine deliver only two-dimensional views of a three-dimensional reality. Using techniques of image processing and computer graphics, it is possible to reconstruct medical objects from spatial image sequences and to show arbitrary views on a display screen. For this purpose the volume of primary data has to be segmented into the objects and a data structure suitable for the display operation has to be generated. The methods are described and illustrated with applications in diagnostic radiology, surgery, orthopedics, and anatomy. Finally the problems of implemention for routine application are discussed.
    Notes: Zusammenfassung Die klassischen medizinischen Abbildungsverfahren liefern nur zweidimensionale Ausschnitte aus einer dreidimensionalen Wirklichkeit. Mit Hilfe der digitalen Bildverarbeitung und der Computer-Graphik ist es jedoch möglich, medizinische Objekte aus räumlichen Bildfolgen zu rekonstruieren und wählbare Ansichten auf einem Bildschirm darzustellen. Zu diesem Zweck muß das Datenvolumen in die darzustellenden Objekte segmentiert und in eine für die Darstellung geeignete Datenstruktur übergeführt werden. Die Verfahren hierfür werden erläutert und mit Anwendungen aus der radiologischen Diagnostik, der Chirurgie, der Orthopädie und der Anatomie illustriert. Schließlich werden die Probleme der Implmentation für Routinezwecke diskutiert.
    Type of Medium: Electronic Resource
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