Proceedings ArticleDOI
Balancing computational and transmission power consumption in wireless image sensor networks
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This methodology, based on a balancing between processing and transmission tasks, can be applied in all those situations where subjective image based measurements are required and tries to find the best compression ratio able to give a significant reduction of transmission time.Abstract:
The paper presents a methodology to reduce the energy consumption of visual sensor node in wireless sensor networks. This methodology, based on a balancing between processing and transmission tasks, can be applied in all those situations where subjective image based measurements are required. Considering that in a sensor node, the communication task is the most energy consumption, the proposed method tries to find the best compression ratio able to give a significant reduction of transmission time, returning adequate and objective image quality and compression time. Some results are presented applying the proposed methodology to the particular case study: the use of wireless visual sensors to the remote metering of water counters.read more
Citations
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Journal ArticleDOI
A low-complexity DWT module and CRS minimal instruction set computer architecture for wireless visual sensor networks
TL;DR: A complete low-complexity processing system that performs data compression, data correction and data encryption that requires a lower implementation complexity than existing systems such as Crypto-Processor and SPIHT CRS MISC is presented.
Investigation of Architectures for Wireless Visual Sensor Nodes
TL;DR: Wireless visual sensor network is an emerging field which has proved useful in many applications, including industrial control and monitoring, surveillance, environmental monitoring, personal care and more.
Quality-driven cross layer design for multimedia security over resource constrained wireless sensor networks
TL;DR: This dissertation formulates the generic problem of quality-driven multimedia resource allocation in WMSNs and proposes a cross layer solution, and fundamental methodologies of multimedia selective encryption and stream authentication, and their application to digital image or video compression standards are presented.
Proceedings ArticleDOI
A simulation testbed to jointly exploit multiple image compression techniques for wireless multimedia sensor networks
TL;DR: A scalable simulation testbed is presented that attempts to mimic the previously designed small-scale hardware testbed for wireless multimedia sensor networks by tuning the simulation parameters to match the real-life measurements obtained via experimental testing.
Journal ArticleDOI
Efficient Data Reduction Techniques for Remote Applications of a Wireless Visual Sensor Network
TL;DR: This paper summarizes different information reduction techniques such as image coding, change coding and ROI coding and their application to a few representative real life applications to be a resource for researchers interested in techniques for information reduction in energy constrained embedded applications.
References
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A survey on sensor networks
TL;DR: The current state of the art of sensor networks is captured in this article, where solutions are discussed under their related protocol stack layer sections.
Journal ArticleDOI
Wireless integrated network sensors
TL;DR: The WINS network represents a new monitoring and control capability for applications in such industries as transportation, manufacturing, health care, environmental oversight, and safety and security, and opportunities depend on development of a scalable, low-cost, sensor-network architecture.
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Energy-aware wireless microsensor networks
TL;DR: This article presents a suite of techniques that perform aggressive energy optimization while targeting all stages of sensor network design, from individual nodes to the entire network.
Journal ArticleDOI
Image quality measures and their performance
A.M. Eskicioglu,P.S. Fisher +1 more
TL;DR: Although some numerical measures correlate well with the observers' response for a given compression technique, they are not reliable for an evaluation across different techniques, and a graphical measure called Hosaka plots can be used to appropriately specify not only the amount, but also the type of degradation in reconstructed images.
Book
What's wrong with mean-squared error?
TL;DR: The invention relates to a spark plug tightener with a cylindrical housing having on one end a multi-faceted opening for engaging the spark plug and on the other end an annular shaped profile in front view through which passes a turning shaft.