Geometric determinants of shape segmentation: Tests using segment identification

Geometric determinants of shape segmentation: Tests using segment identification

The geometric determinants of shape decomposition were studied using a performance-based method. Observers' identification of contour segments was shown to be systematically modulated by their curvature properties, and by the geometric properties of the enclosed region. Specifically, negative minima of contour curvature provided the best segment boundaries. Segments with negative-minima boundar...

Identification of High Crash Road Segment using Genetic Algorithm and Dynamic Segmentation

This paper presents an evolutionary algorithm for recognizing high and low crash road segments using Genetic Algorithm as a dynamic segmentation method. Social and economic costs as well as physical and mental injuries make the governments perceiving to road safety indexes in order to diminish the consequences of road accidents. Due to the limitation of budget for safety...

Statistical and geometric methods for shape-driven segmentation and tracking

Study of geometric shape and water circulation pattern in fish tanks using computational fluid dynamics

Providing comfort conditions for fish from the point of view of velocity uniformity and flow regime is one of the most important requirements of aquaculture improving the production conditions. In this research, for this purpose, by using computational fluid dynamics, Fluent software and k-ɛ turbulence model, the geometrical shape and pattern of water circulation in a fish breeding pond have be...

Fast Bayesian Shape Matching Using Geometric Algorithms

We present a Bayesian approach to comparison of geometric shapes with applications to classification of the molecular structures of proteins. Our approach involves the use of distributions defined on transformation invariant shape spaces and the specification of prior distributions on bipartite matchings. Here we emphasize the computational aspects of posterior inference arising from such model...