This paper presents the generalization of weighted distances to modules and their computation through the chamfer algorithm on general point-lattices. A first part is devoted to the definitions and properties (distance, metric, norm) of weighted distances on modules, with a presentation of weight optimization in the general case, to get rotation invariant distances. A general formula for the we...

Pedestrian detection in real world scenes is a challenging problem. In recent years a variety of approaches have been proposed, and impressive results have been reported on a variety of databases. This paper systematically evaluates (1) various local shape descriptors, namely Shape Context and Local Chamfer descriptor and (2) four different interest point detectors for the detection of pedestri...

Tracking the pose of a moving hand from a monocular perspective is a difficult problem. In the current study the tracking problem is recast as efficient database indexing. Recognition is hastened by approximating chamfer distances between hand poses which have been embedded into a common vector space. Using this embedding, a small number of candidate matches for each query can be quickly identi...

In many applications, separable algorithms have demonstrated their efficiency to perform high performance and parallel volumetric computations, such as distance transformation or medial axis extraction. In the literature, several authors have discussed about conditions on the metric to be considered in a separable approach. In this article, we present generic separable algorithms to efficiently...

We study the chamfer distance transformations of binary digital images and corresponding Lipschitz covers of grayscale images. Validity of the double scan algorithm in arbitrary dimension is proved.

Ceramic thermal barrier coatings are commonly used in gas turbine hot components (e.g., combustor liners/buckets and guide vane platforms). In components that are only partially coated or have cooling-air outlets, coating-end stress singularities may lead to the spallation of the coating. Depending on the geometry of the transition from coated to uncoated material, the severity of the stress si...

In this paper, a model that takes into account the dependence of strength properties on damage rate is considered for modelling impact failure composite materials. The constants material are determined basis experimental diagrams to compression and shear loading unidirectional composite, which exhibit nonlinear strain rate. proposed implemented Abaqus finite element modeling software case three...