We describe an optical flow based obstacle detection system for use in detecting vehicles approaching the blind spot of a car on highways and city streets. The system runs at near frame rate (8-15 frames/second) on PC hardware. We will discuss the prediction of a camera image given an implicit optical flow field and comparison with the actual camera image. The advantage to this approach is that...

ITS solutions suffer from the slow pace of adoption by manufacturers despite the interest shown by both consumers and industry. Our goal is to develop ITS applications using already available technologies to make them affordable, quick to deploy, and easy to adopt. In this paper we introduce an ITS system for overtaking assistance that provides drivers with a real-time video feed from the vehic...

An asymmetric exclusion model on an open chain with random rates for hopping particles, where overtaking is also possible, is studied numerically and by computer simulation. The phase structure of the model and the density profiles near the high and low density coexistence line are obtained. The effect of a site impurity is also studied.

Extensions of a utilitarian and a Suppes–Sen grading principle defined on infinite utility streams are characterized with a stronger notion of Anonymity and without any consistency postulate. The relative merits of the Extended Utilitarian relation are discussed and its rankings are compared with those of the overtaking criterion and the Basu–Mitra Utilitarian relation.

A definition of a utilitarian social welfare relation (SWR) for infinite utility streams is proposed. Such a relation is characterized in terms of the Pareto, Anonymity and Partial Unit Comparability Axioms. The merits of the utilitarian SWR, relative to the more restrictive SWR induced by the overtaking criterion, are examined. © 2006 Elsevier Inc. All rights reserved. JEL classification: D60;...