Highly Accurate Boundary Detection and Grouping

Iasonas Kokkinos (1)

1 GALEN - Organ Modeling through Extraction, Representation and Understanding of Medical Image Content

In this work we address boundary detection and boundary grouping. We first pursue a learning- based approach to boundary detection. For this (i) we leverage appearance and context information by extracting descriptors around edgels and use them as features for classification, (ii) we use discrimina- tive dimensionality reduction for efficiency and (iii) we use outlier-resilient boosting to deal with noise in the training set. We then introduce fractional-linear programming to optimize a grouping criterion that is expressed as a cost ratio. Our contributions are systematically evaluated on the Berkeley benchmark.

Domaines: Vision par ordinateur et reconnaissance de formes [cs.CV]

Iasonas Kokkinos. Highly Accurate Boundary Detection and Grouping. CVPR - IEEE Conf. on Computer Vision and Pattern Recognition, 2010, San Francisco, United States. pp.2520-2527. ⟨hal-00857481⟩