NDLI: Image reconstruction algorithms for radio tomographic imaging

Content Provider	IEEE Xplore Digital Library
Author	Liu Heng Wang Zheng-huan Bu Xiang-yuan An Jian-ping
Copyright Year	2012
Description	Author affiliation: School of Information and Electronics, Beijing Institute of Technology, China (Liu Heng; Wang Zheng-huan; Bu Xiang-yuan; An Jian-ping)
Abstract	Radio tomgographic imaging (RTI) is a method of imaging the attenuation caused by object's obstruction within the area surrounded by wireless sensor nodes. The image reconstruction of RTI is an ill-posed problem because the pixels are more than the RSS measurements. Therefore, conventional methods such as least square method are not applicable because the solutions amplify the noise by dividing small singular values. In this paper, we discuss three algorithms i.e. LBP, Tikhonov regularization and projected Landweber iteration to obtain the imaging results. LBP is very simple and needs little hardware resources. Tikhonov regularization method makes a good balance between image quality and regularization error and we use L-curve method to choose regularization parameter. Projected Landweber iteration method can further improve the imaging results while it needs lots of computation. All the three algorithms can be used to meet different requirement of applications. The experiment results are also presented to validate the effectiveness of algorithms.
Starting Page	48
Ending Page	53
File Size	773135
Page Count	6
File Format	PDF
ISBN	9781467314206
e-ISBN	9781467314213
DOI	10.1109/CYBER.2012.6392525
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-27
Publisher Place	Thailand
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Wireless sensor networks Projected Landweber iteration Wireless senor network Noise Imaging Attenuation Vectors LBP Radio tomographic imaging Tikhonov regularization Image reconstruction
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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