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Examination of the ...
Examination of the sensitivity matrix during the iterative reconstruction process for microwave tomography
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- Meaney, Paul M, 1960 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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Geimer, Shireen D. (författare)
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Paulsen, Keith D. (författare)
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(creator_code:org_t)
- 2018
- 2018
- Engelska.
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Ingår i: 2018 IEEE Conference on Antenna Measurements and Applications, CAMA 2018.
- Relaterad länk:
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We have reconstructed microwave tomographic images utilizing a Gauss-Newton scheme with a log transformation. While the recovered images are quite good, we have analyzed the behavior of the associated Jacobian, or sensitivity, matrix with respect to how it evolves during the reconstruction process. We found that in general the highest sensitivities are along the periphery of the imaging zone confirming the fact that most algorithms operate best for features nearest the outside. Interestingly, our log transformed algorithm appears to evolve during the reconstruction process to increase its internal sensitivity once the major exterior ones have been resolved. These results provide useful insight into a key driver of the reconstruction process and provide useful tools for assessing different system design criteria.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
- NATURVETENSKAP -- Data- och informationsvetenskap -- Datorseende och robotik (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Computer Vision and Robotics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik -- Medicinsk bildbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering -- Medical Image Processing (hsv//eng)
Nyckelord
- log transformation.
- microwave tomography
- sensitivity matrix
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)