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The conception of traffic activities in urban framework is the major endeavor in the study of traffic troubles. This examination is chiefly processed on the maximization of traffic flow, and the minimization of traffic accidents, congestions and pollution. In common, network representations of transport systems are understood to be fixed, but these representations do not permit an exact recreation...
This paper describes the performance of a new type of highly maneuverable underwater robot developed at MIT. The robot, titled “Omni-Egg,” is smooth, spheroidal, and completely appendage free. Propulsion is provided using a novel pump-jet system that can be completely built into the streamlined shell. No fins or stabilizers are used on the vehicle, and directional stability is instead achieved using...
Permanent magnet synchronous motor (PMSM) has been used to drive a number of vehicles. PMSM has high torque density, high efficiency and wide speed range. However, the high cost of permanent magnets is viewed as a disadvantage. This paper presents a technique that can increase the torque density by modifying the shape of permanent magnets and minimizing the magnet volume. Models were compared by increasing...
This paper presents an evaluation of driving attentiveness by using Fuzzy Inference based on the driver's gaze when driving. Two cameras are used respectively to capture images in front of the driving car and to capture images of the driver's face in order to calculate the coordinates of the objects in front of the car and the driver's eye sight angle by using image processing. There are many kinds...
In the recent decades, short-range wireless has become of great importance in the applications of Intelligent Transportation Systems (ITS); especially, that serve traffic management and safety. Various approaches are concerned with optimal positioning of a vehicle and Base-Stations (BSs) placement within a specific area. The optimization problem stands as an exhaustive challenge. This paper discuses...
Traffic sign recognition (TSR) is a research field that has seen much activity in the recent decade. This paper introduces the problem and presents 4 recent papers on traffic sign detection and 4 recent papers on traffic sign classification. It attempts to extract recent trends in the field and touch upon unexplored areas, especially the lack of research into integrating TSR with a driver-in-the-loop...
In this paper we propose a traffic sign recognition system using an on-board single camera for Advanced Driver Assistance Systems (ADAS), including detection, recognition and tracking. We combine RGB ratios based color segmentation with automatic white balance preprocessing and Douglas-Peucker shape detection to establish ROIs. Scale and rotation invariant BRISK features are applied for recognition,...
An effective lane boundaries projective model (LBPM) and improved detection method in the images captured with a vehicle-mounted monocular camera in complex environments, especially for sharp circular curve lane, is proposed in this paper. Firstly, a lane boundaries projective model is deduced. This lane model can not only express straight-line lane boundaries, but also describe the actual sharp circular...
In Vehicular Ad Hoc Networks VANETs, a multitude of applications need to address not a single vehicle on the road, nor the whole totality of vehicles, but only a community of vehicles which share the same geographic location for the purpose of safety, traffic efficiency, advertising or infotainment. The goal is to transmit data from a unique source node to a set of destination nodes satisfying a set...
The concept of head-up display has gained wide acceptance being used for military aviation and has also spread to commercial aviation. Head up display (HUD) is now being used in automobiles to assist with navigation. The advantage of this system is reducing the number and duration of the driver's sight deviations from the road, by projecting graphic information on the windshield. Nevertheless, there...
The pavement will afford the dynamic vehicle loading during using period, so it is necessary to analyze the dynamic response of pavement in order to predict pavement durable function. the most important part of pavement dynamic analysis is frequency and spectrum calculation, which is also the first part of pavement dynamic simulation. Based on composite plane theory, the pavement structure widely...
In recent years, intelligent traffic system (ITS) and telematics system have become a popular issue for traffic safety, convenience and efficiency. The real-time and historical traffic and other roadside information is very helpful information and can be analyzed to give good telematics services and traffic controlling, such as navigation, traffic flow, weather, traffic prediction and so on. This...
We present a system for detecting and recognizing road markings from video input obtained from an in-car camera. Our system learns feature-based templates of road markings from training data and matches these templates to detected features in the test images during runtime. We use MSER features and perform the template matching in an efficient manner so that our system can detect multiple road markings...
Multi-megapixel cameras are transforming airborne video surveillance by enabling persistent imaging of extremely large areas while providing sufficient pixel density to resolve both vehicles and pedestrians. The sheer spatial and temporal volume of data has rendered human scanning of expansive images for miniscule moving objects intractable, underscoring the importance of automated detection and tracking...
In this paper, a real-time free space detection system is presented using a medium-cost lidar sensor and a low cost camera. The extrinsic relationship between both sensors is obtained after an off-line calibration process. The lidar provides measurements corresponding to 4 horizontal layers with a vertical resolution of 3.2 degrees. These measurements are integrated in time according to the relative...
Developing traffic signal control methods is considered as the most important way to improve the traffic efficiency of modern roundabouts. This paper applies a traffic signal controller with two fuzzy layers for signalizing roundabouts. The outer layer of the controller computes urgency degrees of all the phase subsets and then activates the most urgent subset. This mechanism helps to instantly respond...
The detection and tracking of moving vehicles is a necessity for collision-free navigation. In natural unstructured environments, motion-based detection is challenging due to low signal to noise ratio. This paper describes our approach for a 14 km/h fast autonomous outdoor robot that is equipped with a Velodyne HDL-64E S2 for environment perception. We extend existing work that has proven reliable...
The transition to lead free solders has accentuated the inherent reliability problem in electronic packaging caused by thermo mechanical mismatch between different parts of an assembled system. To mitigate this problem, polymer core solder balls (PCSBs) have been proposed as a mechanically more flexible and therefore more reliable alternative to solid solder balls normally used for such applications...
Automatic road-signs recognition is becoming a part of Driver Assisting Systems which role is to increase safety and driving comfort. This paper presents an efficient approach for detecting and recognizing road sign in traffic scene images acquired from a moving vehicle. The developed road sign recognition system is divided into two stages: detection stage to localize signs from a whole image, and...
Content-based vehicle retrieval in unconstrained environment plays an important role in surveillance system. However, due to large variations in viewing angle/position, illumination, and background, traditional vehicle retrieval is extremely challenging. We approach this problem in a different way by rectifying vehicles from disparate views into the same reference view and searching the vehicles based...
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