Improving 2D mesh image segmentation with Markovian Random Fields

Autor(es)

Cuadros-Vargas, Alex J. ; Gerhardinger, Leandro C. ; de Castro, Mario ; Batista Neto, Joao ; Nonato, Luis Gustavo ; Neto, MMD ; Carceroni, RL

• Tipo de documento: Artigo Científico
• Fonte: 2009 XXII BRAZILIAN SYMPOSIUM ON COMPUTER GRAPHICS AND IMAGE PROCESSING (SIBGRAPI 2009); v. N/A, p. 3-pg., 2006-01-01.

Resumo

Traditional mesh segmentation methods normally operate on geometrical models with no image information. On the other hand, 2D image-based mesh generation and segmentation counterparts, such as Imesh [6] perform the task by following a set of well defined rules derived from the geometry of the triangles, but with no statistical information of the mesh elements. This paper presents a novel segmentation method that combines the original Imesh image-based segmentation approach with Markovian Random Field (MRF) models. It takes an image as input, generate a mesh of triangles and, by treating the mesh as a Markovian field, produces quality unsupervised segmentation. The results have demonstrated that the method not only provides better segmentation than that of original Imesh, but is also capable of producing MRF-like segmentation output for certain types of images, with considerable cut in processing times. (AU)

• Processo FAPESP: 03/02815-0 - Estruturas de dados topologicas e geracao de malhas em dominios definidos a partir de amostras.
• Beneficiário: Luis Gustavo Nonato
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 02/05243-4 - Geração de malhas volumétricas a partir de imagens
• Beneficiário: Alex Jesus Cuadros Vargas
• Modalidade de apoio: Bolsas no Brasil - Doutorado