Dan Xie Tingxin Yan Deepak Ganesan Allen R. Hanson Design and Implementation of a Dual-Camera Wireless Sensor Network for Object Retrieval. 469-480 2008 IPSN http://doi.ieeecomputersociety.org/10.1109/IPSN.2008.57 conf/ipsn/2008 db/conf/ipsn/ipsn2008.html#XieYGH08