Investigation of an FFT-based correlation technique for verification of radiation treatment setup.

@article{Jones1991InvestigationOA,
  title={Investigation of an FFT-based correlation technique for verification of radiation treatment setup.},
  author={Susan M. Jones and Arthur L. Boyer},
  journal={Medical physics},
  year={1991},
  volume={18 6},
  pages={
          1116-25
        }
}
Electronic portal imaging devices that capture an image of a patient's treatment field electronically by means of a computer data acquisition system operating in real time are becoming available. This paper reports on a study of a field verification correlation algorithm that can compare each treatment portal image to an image of the correct treatment field positioning. The algorithm requires no human intervention or analysis of the images but rather uses fast Fourier transforms to produce a… CONTINUE READING
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