Directional Geodesic Active Contours

Gallego Bonet, Guillermo and Ronda Prieto, José Ignacio and Valdés Morales, Antonio (2012). Directional Geodesic Active Contours. In: "IEEE International Conference on Image Processing (ICIP)", 30 Sept - 03 Oct 2012, Orlando, FL. USA.


Title: Directional Geodesic Active Contours
  • Gallego Bonet, Guillermo
  • Ronda Prieto, José Ignacio
  • Valdés Morales, Antonio
Item Type: Presentation at Congress or Conference (Poster)
Event Title: IEEE International Conference on Image Processing (ICIP)
Event Dates: 30 Sept - 03 Oct 2012
Event Location: Orlando, FL. USA
Title of Book: IEEE International Conference on Image Processing (ICIP)
Date: 14 May 2012
Freetext Keywords: Active contour, calculus of variations, Riemannian metric, edge detection, image segmentation.
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Señales, Sistemas y Radiocomunicaciones
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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We present a non-conformal metric that generalizes the geodesic active contours approach for image segmentation. The new metric is obtained by adding to the Euclidean metric an additional term that penalizes the misalignment of the curve with the image gradient and multiplying the resulting metric by a conformal factor that depends on the edge intensity. In this way, a closer fitting to the edge direction results. The provided experimental results address the computation of the geodesics of the new metric by applying a gradient descent to externally provided curves. The good performance of the proposed techniques is demonstrated in comparison with other active contours methods.

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Item ID: 10876
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Deposited by: Dr Guillermo Gallego Bonet
Deposited on: 15 May 2012 06:00
Last Modified: 20 Apr 2016 19:04
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