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Proceedings Article

Robust array calibration using time delays with application to ultrasound tomography

[+] Author Affiliations
O. Roy, N. Durić

Karmanos Cancer Institute (USA)

I. Jovanović

Ecole Polytechnique Fédérale de Lausanne (Switzerland)

L. Poulo

Analogic Corp. (USA)

M. Vetterli

Ecole Polytechnique Fédérale de Lausanne (Switzerland) and Univ. of California, Berkeley (USA)

Proc. SPIE 7968, Medical Imaging 2011: Ultrasonic Imaging, Tomography, and Therapy, 796806 (March 3, 2011); doi:10.1117/12.877459
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From Conference Volume 7968

  • Medical Imaging 2011: Ultrasonic Imaging, Tomography, and Therapy
  • Jan D'hooge; Marvin M. Doyley
  • Lake Buena Vista, Florida | February 12, 2011

abstract

Accurate calibration is a requirement of many array signal processing techniques. We investigate the calibration of a transducer array using time delays. We derive a strategy based on the mean square error criterion and discuss how time delays that are not available can be interpolated from existing ones. The proposed method is made robust to noise and model mismatch by means of a novel iterative technique for distance matrix denoising. The convergence of the method is proved. Finally, the accuracy of the proposed calibration algorithm is assessed both in simulated scenarios and using experimental data obtained from an ultrasound scanner designed for breast cancer detection.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

O. Roy ; I. Jovanović ; N. Durić ; L. Poulo and M. Vetterli
"Robust array calibration using time delays with application to ultrasound tomography", Proc. SPIE 7968, Medical Imaging 2011: Ultrasonic Imaging, Tomography, and Therapy, 796806 (March 3, 2011); doi:10.1117/12.877459; http://dx.doi.org/10.1117/12.877459


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