Geometrical Transformation Approximation for 2D/3D Intensity-Based Registration of Portal Images and CT Scan

@inproceedings{Sarrut2001GeometricalTA,
  title={Geometrical Transformation Approximation for 2D/3D Intensity-Based Registration of Portal Images and CT Scan},
  author={David Sarrut and S{\'e}bastien Clippe},
  booktitle={MICCAI},
  year={2001}
}
Conformal radiotherapy treatments need accurate patient positioning in order to spare normal tissues. Patient pose can be evaluated by registering portal images (PI) with Digitally Reconstructed Radiographs (DRR). Several methods involve segmentation which is known to be a difficult task for noisy PI. In this paper, we study another approach by using a fully 3D intensity-based registration method, without segmentation. Our approach uses the correlation ratio as similarity measure and replace… CONTINUE READING

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