Год выпуска: 2011 Автор: Alaa Hamdy Издательство: LAP Lambert Academic Publishing Страниц: 136 ISBN: 9783844314892
Описание
In this research work, several vision-based algorithms have been proposed for automatic detection, classification and tracking of multiple mobile objects as well as for automatic detection of stationary obstacles appearing in a sequence of images taken with an overhead camera. An adaptive background subtraction technique that models each pixel as a mixture of Gaussians has been developed for motion activity detection of dynamic objects, mobile robots and human beings moving in the scene. The computational cost and the memory requirement have been considerably reduced. The classification of dynamic objects as rigid or non-rigid has been based on the homogeneity analysis of the motion field. The rigidity-based classification of dynamic objects is aimed to avoid collisions of interfering humans with mobile robots, whereas identifying stationary obstacles is aimed to prevent collisions of dynamic objects with such obstacles. The identification of stationary obstacles...