Title :
Contour line extraction with wireless sensor networks
Author :
Liao, Pei-Kai ; Chang, Min-Kuan ; Kuo, C. C Jay
Author_Institution :
Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
An algorithm to extract contour lines using wireless sensor networks is proposed for environmental monitoring in this work. In contrast to previous work on edge detection that is primarily concerned with the region of a certain phenomenon, contour lines offer more detailed information about the underlying phenomenon such as signal amplitude, density and source location. A distributed algorithm to extract the contour line information from local measurements is developed so that the phenomenon can be monitored in the basestation without demanding excessive raw data transmission. Simulation results are provided to demonstrate the efficiency of the proposed algorithm.
Keywords :
condition monitoring; data acquisition; distributed algorithms; edge detection; feature extraction; wireless sensor networks; contour line extraction; data aggregation; distributed algorithm; edge detection; environmental monitoring; gradient estimation; signal amplitude; signal density; signal source location; wireless sensor networks; Data mining; Distributed algorithms; Electronic mail; Image edge detection; Monitoring; Pollution measurement; Sensor fusion; Sensor phenomena and characterization; Statistics; Wireless sensor networks;
Conference_Titel :
Communications, 2005. ICC 2005. 2005 IEEE International Conference on
Print_ISBN :
0-7803-8938-7
DOI :
10.1109/ICC.2005.1495012
