Title :
Intensity only microwave diffraction tomography using 802.15.4 wireless networks
Author :
Hunt, Kenneth P. ; Andersen, David R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Iowa, Iowa City, IA, USA
Abstract :
We present an improved method for reconstructing images from projection data gathered using 2.4GHz, IEEE 802.15.4 Direct Sequence Spread Spectrum (DSSS) radio signals. Projection data was gathered using received signal strength indicator (RSSI) data provided by a wireless ZigBee network. Previously the image was reconstructed using the inverse radon transform. We reconstruct the image using a simple algorithm developed for objects with a real index of refraction. This method provides improved image quality.
Keywords :
Radon transforms; computerised tomography; image reconstruction; medical image processing; personal area networks; spread spectrum communication; 802.15.4 wireless networks; DSSS radio signals; IEEE 802.15.4 direct sequence spread spectrum radio signals; RSSI data; image quality; image reconstruction; inverse radon transform; microwave diffraction tomography; projection data; received signal strength indicator; wireless ZigBee network; Diffraction; Fourier transforms; Image reconstruction; Phantoms; Receivers; Scattering; Tomography; Image Processing; Tomography; Wireless Sensor Networks;
Conference_Titel :
Electro/Information Technology (EIT), 2010 IEEE International Conference on
Conference_Location :
Normal, IL
Print_ISBN :
978-1-4244-6873-7
DOI :
10.1109/EIT.2010.5612090
