TY - GEN
T1 - Oriented smoothness constraints for adaptive active contour models
AU - Rougon, Nicolas
AU - Prêteux, Françoise
N1 - Publisher Copyright:
© 1992 IEEE.
PY - 1992/1/1
Y1 - 1992/1/1
N2 - We show how introducing oriented smoothness constraints results in a novel class of active contour models for segmentation extending standard isotropic inhomogeneous membrane/thin-plate stabilizers. These constraints, equivalent to directional adaptive stretching and bending densities, are expressed as 2nd-order positive definite tensors which are invariant with respect to rigid motions in the image plane and preserve the differential properties (metric and curvature) of the intensity surface. Optimization of the model is discussed in details. Its accuracy and robustness have been established on MR cardiac images.
AB - We show how introducing oriented smoothness constraints results in a novel class of active contour models for segmentation extending standard isotropic inhomogeneous membrane/thin-plate stabilizers. These constraints, equivalent to directional adaptive stretching and bending densities, are expressed as 2nd-order positive definite tensors which are invariant with respect to rigid motions in the image plane and preserve the differential properties (metric and curvature) of the intensity surface. Optimization of the model is discussed in details. Its accuracy and robustness have been established on MR cardiac images.
U2 - 10.1109/IEMBS.1992.5762098
DO - 10.1109/IEMBS.1992.5762098
M3 - Conference contribution
AN - SCOPUS:85067184675
T3 - Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
SP - 1916
EP - 1917
BT - Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992
A2 - Plonsey, Robert
A2 - Coatrieux, Jean Louis
A2 - Morucci, Jean Pierre
A2 - Laxminarayan, Swamy
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992
Y2 - 29 October 1992 through 1 November 1992
ER -