Article citationsMore>>

A. Cederlund, M. Kalke and U. Welander, “Volumetric Tomography—A New Tomographic Technique for Panoramic Units,” Dentomaxillofacial Radiology, Vol. 38, No. 2, 2009, pp. 104-111.
http://dx.doi.org/10.1259/dmfr/16577933

has been cited by the following article:

• TITLE: Sinogram Interpolation Method for Sparse-Angle Tomography

  AUTHORS: Martti Kalke, Samuli Siltanen

  KEYWORDS: Interpolation; Sparse Imaging; Tomography; Sinogram

  JOURNAL NAME: Applied Mathematics, Vol.5 No.3, February 12, 2014

  ABSTRACT: In sparse-angle X-ray tomography reconstruction, where only a small number of projection images are taken around the object, appropriate sinogram interpolation has a significant impact on image quality. A novel sinogram interpolation method is introduced for extreme sparse tomographic reconstruction where only nine measured projection images are available. The sinogram is interpolated by solving characteristics of the so-called warps, which can be considered as approximation sine waves in a limited region. The numerical evidence suggests that this approach gives superior results over standard interpolation methods when the tomographic data are extremely sparse and noisy.