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Ultrasonic computerized tomography (CT) for temperature measurements with limited projection data based on extrapolated filtered back projection (FBP) method

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  • Zhu, Ning
  • Jiang, Yong
  • Kato, Seizo

Abstract

This study uses ultrasound in combination with tomography to obtain three-dimensional temperature measurements using projection data obtained from limited projection angle. The main feature of the new computerized tomography (CT) reconstruction algorithm is to employ extrapolation scheme to make up for the incomplete projection data, it is based on the conventional filtered back projection (FBP) method while on top of that taking into account the correlation between the projection data and Fourier transform-based extrapolation. Computer simulation is conducted to verify the above algorithm. An experimental 3D temperature distribution measurement is also carried out to validate the proposed algorithm. The simulation and experimental results demonstrate that the extrapolated FBP CT algorithm is highly effective in dealing with projection data from limited projection angle.

Suggested Citation

  • Zhu, Ning & Jiang, Yong & Kato, Seizo, 2005. "Ultrasonic computerized tomography (CT) for temperature measurements with limited projection data based on extrapolated filtered back projection (FBP) method," Energy, Elsevier, vol. 30(2), pages 509-522.
    • Handle: RePEc:eee:energy:v:30:y:2005:i:2:p:509-522
    DOI: 10.1016/j.energy.2004.09.005
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