partial data interpolation during arcing von rajwade jaisingh (8 Ergebnisse)

Zustand: New. pp. 128.

Taschenbuch. Zustand: Neu. Partial-Data Interpolation During Arcing of an X-Ray Tube in CT | A new method to reduce arcing induced image artifacts | Jaisingh Rajwade | Taschenbuch | 128 S. | Englisch | 2011 | LAP LAMBERT Academic Publishing | EAN 9783846503485 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848 Norderstedt, info[at]bod[dot]de | Anbieter: preigu.

Taschenbuch. Zustand: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -X-ray tubes are used in computed tomography (CT) scanners as the energy source for generation of images. These tubes occasionally tend to arc, an undesired phenomenon where high current surges through the tube. During the time that the x-ray tube recovers to full voltage after an arc, image data is being collected. Normally this data, acquired at less than full voltage, is discarded and interpolation is performed over the arc duration. However, this is not ideal and some residual imperfections in images, called artifacts, still remain. Proposed here is an algorithm that corrects for improper tube voltage, allowing previously discarded data to be used for imaging. Instead of throwing away all data during the arc period, we use some of the data that is available as the voltage is rising back to its programmed value. This method reduces the length of the interpolation period, thus reducing artifacts. Results of implementation on a CT scanner show that there is an improvement in image quality using the partial-data interpolation method when compared to standard interpolation and that we can save up to 30% of data from being lost during an arc. With the continuous drive from the imaging 128 pp. Englisch.

Zustand: New. Print on Demand pp. 128 2:B&W 6 x 9 in or 229 x 152 mm Perfect Bound on Creme w/Gloss Lam.

Zustand: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Rajwade JaisinghJaisingh Rajwade has a M.S.and Doctor of Engineering(Electrical)from Cleveland State University, Cleveland, Ohio, USA.He worked as a Product Development Engineer for 10 years in the Computed Tomography division of Phi.

Zustand: New. PRINT ON DEMAND pp. 128.

Taschenbuch. Zustand: Neu. This item is printed on demand - Print on Demand Titel. Neuware -X-ray tubes are used in computed tomography (CT) scanners as the energy source for generation of images. These tubes occasionally tend to arc, an undesired phenomenon where high current surges through the tube. During the time that the x-ray tube recovers to full voltage after an arc, image data is being collected. Normally this data, acquired at less than full voltage, is discarded and interpolation is performed over the arc duration. However, this is not ideal and some residual imperfections in images, called artifacts, still remain. Proposed here is an algorithm that corrects for improper tube voltage, allowing previously discarded data to be used for imaging. Instead of throwing away all data during the arc period, we use some of the data that is available as the voltage is rising back to its programmed value. This method reduces the length of the interpolation period, thus reducing artifacts. Results of implementation on a CT scanner show that there is an improvement in image quality using the partial-data interpolation method when compared to standard interpolation and that we can save up to 30% of data from being lost during an arc. With the continuous drive from the imagingBooks on Demand GmbH, Überseering 33, 22297 Hamburg 128 pp. Englisch.

Taschenbuch. Zustand: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - X-ray tubes are used in computed tomography (CT) scanners as the energy source for generation of images. These tubes occasionally tend to arc, an undesired phenomenon where high current surges through the tube. During the time that the x-ray tube recovers to full voltage after an arc, image data is being collected. Normally this data, acquired at less than full voltage, is discarded and interpolation is performed over the arc duration. However, this is not ideal and some residual imperfections in images, called artifacts, still remain. Proposed here is an algorithm that corrects for improper tube voltage, allowing previously discarded data to be used for imaging. Instead of throwing away all data during the arc period, we use some of the data that is available as the voltage is rising back to its programmed value. This method reduces the length of the interpolation period, thus reducing artifacts. Results of implementation on a CT scanner show that there is an improvement in image quality using the partial-data interpolation method when compared to standard interpolation and that we can save up to 30% of data from being lost during an arc. With the continuous drive from the imaging.