Contour Tracking by Minimal Cost Path Approach. Application to Cephalometry. (MP-P4)

Author(s) : Barbara Romaniuk (GREYC CNRS UMR 6072, France) Michel Desvignes (LIS, France) Marinette Revenu (GREYC CNRS UMR 6072, France) Marie-Josèphe Deshayes (TéléCrâne Innovation, France)

Abstract : In this paper, a regional minimal cost approach without parameters is used for contour tracking with a good robustness. Dynamic programming is exploited for its efficiency. This general method is applied to the extraction of the cranial contour on higth resolution X-Ray image. Ellipse is then fitted on the extracted contour to represent it as a first step for automatic localisation of cephalometric points. This method is tested on 424 X-Ray images, with different acquisition parameters.

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