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While much work in the domain of traffic lights recognition is invested in the detection of traffic lights, classification of their exact state (including color phase and possible arrow pictogram) is often neglected. In this paper, we propose a robust approach for efficient video-based classification of said state with particular attention to the displayed pictogram and an additional ability to reject...
This paper is a tutorial for a path generation method during merging maneuver of automobile using a model predictive control scheme. Lanes of a motor way are approximated with proposed smooth lines. Assuming that the main lane vehicles run on the centerline of the main lane, an appropriate path of the merging vehicle can be simply designed and modified according to the motion of the main lane vehicles...
The objective of this research is to demonstrate how adaptive wings improve the overall performance of conventional micro air vehicles (MAVs). This will allow MAVs to fulfill missions with different range and endurance requirements, and therefore to perform a wider range of missions than conventional MAVs. These adaptive wings are achieved with the use of macro-fiber composites devices, a low-cost,...
A novel approach for stabilization and navigation of swarms of Micro Aerial Vehicles (MAVs) along a predefined path through a complex environment with obstacles is introduced in this paper. The method enables to control large MAV swarms (in literature also called UAV swarms) based only on onboard sensors and without any inter-vehicle communication. The proposed method relies on visual localization...
This paper presents an ongoing development of a method for releasing pattern of traffic lights, where the primary aim is to reduce traffic congestion in Bangkok, Thailand. The method applies theoretical principles of Fuzzy Logic, where the highlight is on the prominent technicality of decision making under ambiguous logic, similar to the human mind. This Fuzzy Logic-based method will be used to develop...
This paper introduces a simulation environment developed for analyzing crowd-sensing based applications in the Smart City application domain. As a case study, an urban parking application scenario is investigated and presented. In this scenario, smart citizens collect and share parking related events, such as leaving or occupying a free parking spot. These events can be presented on a real-time city...
In this study, using the network approach, we analyzed the urban public transportation systems of 5 Hungarian cities. We performed a comprehensive network analysis of the systems with the main goal of identifying significant similarities and differences of the transportation networks of these cities. Although previous studies often investigated unweighted networks, one novelty of our study is to consider...
This paper proposes the control design and implementation of an intelligent vehicle combined with robotic manipulator and computer vision. It can be roughly divided into three main directions for the design of intelligent vehicle, including path planning of mobile vehicle, position control of robot arm system and appropriate applications of image recognition. For the consideration of path planning...
In this paper, we propose a simple general-purpose road boundary detection method, which can detect low height curbs, curved curbs, slopes, vegetation and ditches. Many conventional methods based on DEM (digital elevation map) can only deal with ordinary curbs because they use step-edge detection on the DEM. The proposed method detects height changes against road surface on several multi-directional...
Aeronautical engineering design projects involving rigid wingsail vehicles are described. Wingsail technology is appropriate for study by undergraduate aeronautical engineering students because it encompasses a range of topics that are already treated within the curriculum. Aeronautical engineering programs must prepare graduates to have knowledge of aerodynamics, materials, structures, propulsion,...
The proposed paper is in the framework of the “V-FIDES” project, aiming at developing a new generation of agile, long-endurance, multi-purpose Autonomous Underwater Vehicle for deep sea exploration. The project is co-funded by Tuscany Region (Italy) and is developed by a team lead by Finmeccanica — WASS (Whitehead Sistemi Subacquei, Livorno) with the participation of several partners, mainly located...
This work presents a low-cost stereo vision system aimed to the real-time detection of generic obstacles (without constraints on symmetry or shape) on the path of a mobile road vehicle. Thanks to a geometrical transform the perspective effect is removed from both left and right stereo images. The difference between the results is used for the detection of free-space in front of the vehicle. The output...
Today one of the major concerns for any industry is availability of workspace and adequate intratransport systems. This paper suggests the possible and probably cheap solution for both of above incapacities by implying sensor controlled motion of Omni-directional wheels. We have synchronized the image processing capability of Raspberry Pie processor with the sensitivity of motor driver circuit to...
Pedestrian Detection is a critical technique for avoiding the collision between the vehicle and people, and it can be used in the advanced driver assistance system. Most research of the pedestrian detection areas are focused on the standing or walking people at the training process. INRIA's pedestrian dataset is composed of persons standing and facing the front, however another datasets comprise various...
A rescue robot is required to efficiently run on uneven surfaces. However, a high performance on a rough terrain sometimes causes inefficiency in rapidly moving on even surfaces such as paved areas. To provide a mechanism that is able to be used in different terrains without changing the structure, we propose a specialized shape for 6 wheels vehicles that is able to run like a normal wheeled vehicle...
We have developed the robotic vehicle on water that moves by the rider's balance. Previously, due to the lack of stability of the vehicle, balancing skill was required for the rider. In general, the center of buoyancy of the floating body influences on the stability. Therefore, in this paper, the floating vehicle was modeled and the appropriate body shape and size that improves the stability was simulated...
We present a small database of “noisy” traffic signs in cluttered urban environments that exhibit various forms of degradation, including vandalism and fading (discoloration). The database contains five types of international traffic signs that allow differentiation by means of color and shape, and it has been collected in two cities in Greece. We further present a baseline system for detecting and...
Taxi scheduling problem represent the heart of management problems for most Taxi companies. This is due to the fact that information in such environment is dynamic in nature with a high degree of uncertainty. Fuzzy logic can be utilized to deal with such uncertainty in the information. Genetic algorithm can be utilized for optimization of solution. This paper describes the implementation of a hybridized...
Rural and secondary roads inherently exhibit road curves and turns. This study aims to predict the risk associated with rural road curves exploiting major curve features such as curvature, slope type, and direction. The images acquired by rear and front cameras are utilized to capture the underlined features. Slope type is obtained by two-view images while direction and curvature are estimated by...
One emerging and challenging issue in Smarter Cities is Mobility. In order to gather mobility data for relevant analyses, two solutions are widely discussed, namely the conventional standardized infrastructure sensors and the novel social sensing solution. However infrastructure sensors solution is too costly, that is unfeasible for every city. On the contrast, social sensing is a renewal approach,...
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