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An optimization procedure for spatial and density resolution in hard X-ray micro-computed tomography

P. Thurner, F. Beckmann, B. Müller
Nuclear Instruments and Methods in Physics Research B
Vol. 225, pp. 599-603, 2004

Abstract

The quality of the X-ray tomogram not only depends on the spatial resolution but also on the density resolution or contrast. Based on the theory of [Nucl. Instr. and Meth. 206 (1983) 541] it is concluded that the density resolution can be substantially improved by merging of pixels, referred to as binning, prior to reconstruction. We demonstrate that the quality of a given 3D-data set, i.e. the tomogram of stained biological cells seeded on a polymer multi¥lament yarn in phosphate bu¥ered saline, can be optimized with respect to the product of spatial and density resolution - the image quality factor. This procedure improves or even enables the visualization and quanti¥cation of selected constituents in the tomogram.


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@Article{eth_biwi_00329,
  author = {P. Thurner and F. Beckmann and B. M\"uller},
  title = {An optimization procedure for spatial and density resolution in hard X-ray micro-computed tomography},
  journal = {Nuclear Instruments and Methods in Physics Research B},
  year = {2004},
  month = {},
  pages = {599-603},
  volume = {225},
  number = {},
  keywords = {computerized tomography}
}