Abstract
Applications based on video and image in wireless sensor network are highly attractive due to their wealth of information. In this context, application for object recognition and tracking using image and video information is one the attractive approaches that can be applied for event detection and localization, security processes, following of the rare animal species and control of road traffic, and so forth. However, the implementation of such approach with WMSN requires a specific image processing scheme and efficient transmission protocol. In fact, because of the limited energy of the batteries embedded in motes, the power consumption is the major constraint facing network life time and reliability in WMSN. The efficiency and the validity of these multimedia applications over wireless sensor networks are then dependent on the capabilities of the designer to provide low-power scheme for data processing and energy-aware transmission protocols. This paper presents a contribution to the design of low complexity scheme based on object identification for efficient sensing of multimedia information in wireless multimedia sensor networks. It proposes a new solution and explores the associated performances of this scheme. The presented results in this paper attest the high efficiency to achieve low-power objects identification when implemented in wireless motes.
Highlights
Research in the area of WSN is more focusing on the idea of enhancing the capabilities of the WSN in order to provide the end user with useful information gathered in a smart scheme instead of sending all the measurements to report about a single event occurrence or information of interest
As the multimedia applications are characterized with the production of relatively huge data streams, the power consumption appears to be the major challenge to face when deploying the WSN for the transmission of multimedia data stream
Many research works which addressed image compression in wireless multimedia sensor network (WMSN) have noticed that classical compression methods for video and image are not suitable to be processed within weak hardware capabilities characterizing the wireless sensor nodes [1, 2]
Summary
Research in the area of WSN is more focusing on the idea of enhancing the capabilities of the WSN in order to provide the end user with useful information gathered in a smart scheme instead of sending all the measurements to report about a single event occurrence or information of interest. To minimize the power consumption and to reduce the data stream amount of images transmitted through the WMSN, it will be recommended to first check if the image captured contains interesting phenomena to be notified to the end user and to send the minimum of bytes that represents the detected object or the physical phenomena This scheme will reduce the power consumption at the source mote but will contribute to significantly unload the network from useless. The main contribution of this paper is to present a new scheme for sensing with multimedia capabilities based on event detection and useful information extraction in order to achieve low power notification to the end user It focuses on the specification of a low complexity scheme intended to detect and identify a specific target or object based on image sensing and processing.
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