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Reduced rank formulation for increased computational efficiency in medical ultrasound model-based beamforming

Publication ,  Conference
Ellis, MA; Walker, WF
Published in: Conference Record - Asilomar Conference on Signals, Systems and Computers
December 1, 2008

Recently, we have developed a model-based adaptive beamforming algorithm, entitled dTONE, which significantly increases both image contrast and resolution by conducting a global optimization based on a model of a sparse set of hypothetical source locations. Due to the global nature of this optimization, a single bright source from an un-modeled location can cause significant degradation of the resulting image. As a result, the entire space from which signal may be received must be finely sampled, requiring a model of very large scale and computational complexity. We have developed a method that uses a reduced rank formulation of a subset of the hypothetical source locations to reduce the computational complexity of dTONE by several orders of magnitude with minimal degradation in image quality. Computation times were reduced by anywhere from 3.7 to 18.3 times while maintaining an image contrast and resolution far superior to that of conventional beamforming. © 2008 IEEE.

Duke Scholars

Published In

Conference Record - Asilomar Conference on Signals, Systems and Computers

DOI

ISSN

1058-6393

ISBN

9781424429417

Publication Date

December 1, 2008

Start / End Page

1923 / 1926
 

Citation

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Ellis, M. A., & Walker, W. F. (2008). Reduced rank formulation for increased computational efficiency in medical ultrasound model-based beamforming. In Conference Record - Asilomar Conference on Signals, Systems and Computers (pp. 1923–1926). https://doi.org/10.1109/ACSSC.2008.5074764
Ellis, M. A., and W. F. Walker. “Reduced rank formulation for increased computational efficiency in medical ultrasound model-based beamforming.” In Conference Record - Asilomar Conference on Signals, Systems and Computers, 1923–26, 2008. https://doi.org/10.1109/ACSSC.2008.5074764.
Ellis MA, Walker WF. Reduced rank formulation for increased computational efficiency in medical ultrasound model-based beamforming. In: Conference Record - Asilomar Conference on Signals, Systems and Computers. 2008. p. 1923–6.
Ellis, M. A., and W. F. Walker. “Reduced rank formulation for increased computational efficiency in medical ultrasound model-based beamforming.” Conference Record - Asilomar Conference on Signals, Systems and Computers, 2008, pp. 1923–26. Scopus, doi:10.1109/ACSSC.2008.5074764.
Ellis MA, Walker WF. Reduced rank formulation for increased computational efficiency in medical ultrasound model-based beamforming. Conference Record - Asilomar Conference on Signals, Systems and Computers. 2008. p. 1923–1926.

Published In

Conference Record - Asilomar Conference on Signals, Systems and Computers

DOI

ISSN

1058-6393

ISBN

9781424429417

Publication Date

December 1, 2008

Start / End Page

1923 / 1926