Motion vectors (MVs) characterize the movement of pixel blocks in video streams and are readily available. MVs not only allow us to avoid expensive feature transform and correspondence computations but also provide the motion information for both the environment and moving obstacles. This enables us to develop a new framework that is capable of simultaneous localization, scene mapping, and movi...

The paper presents a computational method for spatial behavioral simulation of moving mechanical objects. The developed software is able to handle both two-dimensional and threedimensional objects whose geometric models are imported from commercialized CAD systems through STEP files. Kinematical description of various objects is unified, stationary obstacles and moving bodies are treated in the...

Finding a safe, smooth, and efficient path to move an object through obstacles is necessary for object manipulation in robotics and automation. This paper presents an approach to twodimensional as well as threedimensional findpath problems that divides the problem into two steps. First, rough paths are found based only on topological information. This is accomplished by assigning to each obstac...

This paper presents a new sensor-based online method for generating collision-free near-optimal paths for mobile robots pursuing a moving target amidst dynamic and static obstacles. At each iteration, first the set of all collision-free directions are calculated using velocity vectors of the robot relative to each obstacle and target, forming the Directive Circle (DC), which is a novel concept....

In this paper, a genetic-fuzzy approach is developed for solving the motion planning problem of a mobile robot in the presence of moving obstacles. The application of combined soft c,omputing techniques neural network, fuzzy logic, genetic algorithms, tabu search and others is becoming increasingly popular among various researchers due to their ability to handle imprecision and uncertainties th...

A method is presented for planning a pa th in t h e presence of moving obstacles. Given a se t of polygonal moving obstacles, we focus on generating a pa th for a mobile robot t h a t navigates in t h e two-dimensional plane. O u r methodology is t o include t ime as one of t h e dimensions of t h e model world. T h i s allows u s t o regard the moving obstacles as being s ta t ionary in t h e ...

In this paper we present a new robust approach to extract moving objects in traffic scenes. It allows moving obstacles (cars, motorcycles, ...) to be detected from a moving car without any a priori information about the shape or location of these moving objects. This technique is based on the concept of tracking color blobs in image sequences.

This paper investigates the integration of traffic information (TI) into the routing in the presence of moving obstacles. When traffic accidents occur, the incidents could generate different kinds of hazards (e.g., toxic plumes), which make certain parts of the road network inaccessible. On the other hand, the first responders, who are responsible for management of the traffic incidents, need t...

Multiple wireless devices are being widely deployed in Intelligent Transportation System (ITS) services on the road to establish end-to-end connection between vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) networks. Vehicular ad hoc networks (VANETs) play an important role in supporting V2V and V2I communications (also called V2X communications) in a variety of urban environments ...

Collision avoidance is a fundamental requirement for mobile robots. Avoiding moving obstacles (also termed dynamic obstacles) with unpredictable direction changes, such as humans, is more challenging than avoiding moving obstacles whose motion can be predicted. Precise information on the future moving directions of humans is unobtainable for use in navigation algo...