RT info:eu-repo/semantics/article
T1 A Second Order Multi-Stencil Fast Marching Method with a Non-Constant Local Cost Model
A1 Merino Caviedes, Susana
A1 Cordero Grande, Lucilio
A1 Pérez Rodríguez, María Teresa
A1 Casaseca de la Higuera, Juan Pablo
A1 Martín Fernández, Marcos Antonio
A1 Deriche, Rachid
A1 Alberola López, Carlos
AB The fast marching method is widely employed in several fields of image processing. Some years ago a multi-stencil version (MSFM) was introduced to improve its accuracy by solving the equation for a set of stencils and choosing the best solution at each considered node. The following work proposes a modified numerical scheme for MSFM to take into account the variation of the local cost, which has proven to be second order. The influence of the stencil set choice on the algorithm outcome with respect to stencil orthogonality and axis swapping is also explored, where stencils are taken from neighborhoods of varying radius. The experimental results show that the proposed schemes improve the accuracy of their original counterparts, and that the use of permutation-invariant stencil sets provides robustness against shifted vector coordinates in the stencil set.
YR 2019
FD 2019
LK https://uvadoc.uva.es/handle/10324/65601
UL https://uvadoc.uva.es/handle/10324/65601
LA spa
NO 9.	S. Merino-Caviedes, L. Cordero-Grande, M. T. Pérez Rodríguez, P. Casaseca de la Higuera Marcos Martín-Fernández, R. Deriche, C Alberola-López, A Second Order Multi-Stencil Fast Marching Method with a Non-Constant Local Cost Model,  IEEE Trans Image Process. Vol. 28, No. 4, pp. 1967-1979, 2019
DS UVaDOC
RD 11-dic-2024