9,595 research outputs found

    Wide area detection system: Conceptual design study

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    An integrated sensor for traffic surveillance on mainline sections of urban freeways is described. Applicable imaging and processor technology is surveyed and the functional requirements for the sensors and the conceptual design of the breadboard sensors are given. Parameters measured by the sensors include lane density, speed, and volume. The freeway image is also used for incident diagnosis

    Vision Sensors and Edge Detection

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    Vision Sensors and Edge Detection book reflects a selection of recent developments within the area of vision sensors and edge detection. There are two sections in this book. The first section presents vision sensors with applications to panoramic vision sensors, wireless vision sensors, and automated vision sensor inspection, and the second one shows image processing techniques, such as, image measurements, image transformations, filtering, and parallel computing

    Advanced traffic video analytics for robust traffic accident detection

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    Automatic traffic accident detection is an important task in traffic video analysis due to its key applications in developing intelligent transportation systems. Reducing the time delay between the occurrence of an accident and the dispatch of the first responders to the scene may help lower the mortality rate and save lives. Since 1980, many approaches have been presented for the automatic detection of incidents in traffic videos. In this dissertation, some challenging problems for accident detection in traffic videos are discussed and a new framework is presented in order to automatically detect single-vehicle and intersection traffic accidents in real-time. First, a new foreground detection method is applied in order to detect the moving vehicles and subtract the ever-changing background in the traffic video frames captured by static or non-stationary cameras. For the traffic videos captured during day-time, the cast shadows degrade the performance of the foreground detection and road segmentation. A novel cast shadow detection method is therefore presented to detect and remove the shadows cast by moving vehicles and also the shadows cast by static objects on the road. Second, a new method is presented to detect the region of interest (ROI), which applies the location of the moving vehicles and the initial road samples and extracts the discriminating features to segment the road region. After detecting the ROI, the moving direction of the traffic is estimated based on the rationale that the crashed vehicles often make rapid change of direction. Lastly, single-vehicle traffic accidents and trajectory conflicts are detected using the first-order logic decision-making system. The experimental results using publicly available videos and a dataset provided by the New Jersey Department of Transportation (NJDOT) demonstrate the feasibility of the proposed methods. Additionally, the main challenges and future directions are discussed regarding (i) improving the performance of the foreground segmentation, (ii) reducing the computational complexity, and (iii) detecting other types of traffic accidents

    Land use, urban, environmental, and cartographic applications, chapter 2, part D

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    Microwave data and its use in effective state, regional, and national land use planning are dealt with. Special attention was given to monitoring land use change, especially dynamic components, and the interaction between land use and dynamic features of the environment. Disaster and environmental monitoring are also discussed

    Projektowanie i optymalizacja systemów telekomunikacyjnych dla rozproszonej grupy farm fotowoltaicznych o mocy 1MW w Polsce

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    TFG (en Polonia conocido como "Bachelor of Engineering Thesis") del alumno Witold Bąk en su universidad de origen, la Lodz University of Technology. El alumno fue previamente alumno Erasmus en la Universidad de Alicante. El TFG ha sido cotutorizado por profesores de ambas universidades y ha sido redactado en inglés.After several months of work at I+D Energias, I learned about the construction process of photovoltaic farms in Poland from the perspective of an EPC (Engineering, Procurement and Construction) company. I had the opportunity to work with excellent people on various issues related to construction of the photovoltaic farm, mainly for communication needs. We have introduced optimization of farm monitoring & CCTV systems, which reduces costs and improves the quality of systems. The purpose of the project was to detect and define existing problems in communication needs in a scattered group of 109 photovoltaic farms in Poland of 1 MW each (43 for Energija dossier and 66 for Lords dossier). We optimised monitoring and CCTV systems, we improved the solution for the gateway to the Internet, comparing Energija and Lords dossier, and we introduced a new solution for inverter’s architecture for Lords dossier based on PLC technology, more convenient and compatible with Huawei inverters. All the new solutions and specific technologies presented in this thesis made the construction process a photovoltaic farm in Poland cheaper and faster.I+D Energías y Engineering Services Polsk

    Computer vision for advanced driver assistance systems

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    Computer vision for advanced driver assistance systems

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    Remote sensing in the coastal and marine environment. Proceedings of the US North Atlantic Regional Workshop

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    Presentations were grouped in the following categories: (1) a technical orientation of Earth resources remote sensing including data sources and processing; (2) a review of the present status of remote sensing technology applicable to the coastal and marine environment; (3) a description of data and information needs of selected coastal and marine activities; and (4) an outline of plans for marine monitoring systems for the east coast and a concept for an east coast remote sensing facility. Also discussed were user needs and remote sensing potentials in the areas of coastal processes and management, commercial and recreational fisheries, and marine physical processes
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