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Traditional wireless sensor networks (WSNs) capture scalar data such as temperature, vibration, pressure, or humidity. Motivated by the success of WSNs and also with the emergence of new technology in the form of low-cost image sensors, researchers have proposed combining image and audio sensors with WSNs to form wireless multimedia sensor networks (WMSNs). This introduces practical and research challenges, because multimedia sensors, particularly image sensors, generate huge amounts of data to be processed and distributed within the network, while sensor nodes have restricted battery power and hardware resources.   This book describes how reconfigurable hardware technologies such as field-programmable gate arrays (FPGAs) offer cost-effective, flexible platforms for implementing WMSNs, with a main focus on developing efficient algorithms and architectures for information reduction, including event detection, event compression, and multicamera processing for hardware implementations. The authors include a comprehensive review of wireless multimedia sensor networks, a complete specification of a very low-complexity, low-memory FPGA WMSN node processor, and several case studies that illustrate information reduction algorithms for visual event compression, detection, and fusion.   The book will be of interest to academic researchers, R&D engineers, and computer science and engineering graduate students engaged with signal and video processing, computer vision, embedded systems, and sensor networks.

Engineering & Applied Sciences --- Applied Physics --- Computer engineering. --- Computer network architectures. --- Computer vision. --- Multimedia systems. --- Sensor networks. --- Networks, Sensor --- Computer-based multimedia information systems --- Multimedia computing --- Multimedia information systems --- Multimedia knowledge systems --- Machine vision --- Vision, Computer --- Architectures, Computer network --- Network architectures, Computer --- Computers --- Design and construction --- Computer science. --- Computer organization. --- Multimedia information systems. --- Image processing. --- Electrical engineering. --- Computer Science. --- Image Processing and Computer Vision. --- Electrical Engineering. --- Computer Systems Organization and Communication Networks. --- Multimedia Information Systems. --- Artificial intelligence --- Image processing --- Pattern recognition systems --- Computer architecture --- Detectors --- Context-aware computing --- Multisensor data fusion --- Information storage and retrieval systems --- Optical data processing. --- Organization, Computer --- Electronic digital computers --- Electric engineering --- Engineering --- Optical computing --- Visual data processing --- Bionics --- Electronic data processing --- Integrated optics --- Photonics --- Optical equipment --- Wireless sensor networks.