Reconstruction of Pictures from Their Projections

  title={Reconstruction of Pictures from Their Projections},
  author={Richard Gordon and Gabor T. Herman},
  journal={Commun. ACM},
There are situations in the natural sciences and medicine (e.g. in electron microscopy and X-ray photography) in which it is desirable to estimate the gray levels of a digital picture at the individual points from the sums of the gray levels along straight lines (projections) at a few angles. Usually, in such situations, the picture is far from determined and the problem is to find the “most representative” picture. Three algorithms are described (all using Monte Carlo methods) which were… CONTINUE READING

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