Open-source and flexible framework for visual sensor networks

We present an open-source and flexible framework for building VSN applications on top of low-cost and low-power linux-operated minicomputers. The framework comprises software modules for different types of nodes in the networks (camera, relays, cooperators and sink) in addition to a graphical user interface for controlling the network remotely. The great flexibility of the framework allows to easily implement applications scenarios characterized by different parameters, such as the wireless communication technology (e.g., 802.11, 802.15.4) or the type of data to be transmitted to the sink (image/video or feature-based data). To demonstrate the flexibility of the proposed framework, two representative applications are showcased: object recognition and parking lot monitoring.