Improvement of delay and sum beamforming photoacoustic imaging based on delay-multiply-sum-to-standard-deviation-factor

Souradip Paul; Anjali Thomas; Suheshkumar Singh Mayanglambam

doi:10.1117/12.2582054

5 March 2021 Improvement of delay and sum beamforming photoacoustic imaging based on delay-multiply-sum-to-standard-deviation-factor

Souradip Paul, Anjali Thomas, Suheshkumar Singh Mayanglambam

Author Affiliations +

Proceedings Volume 11642, Photons Plus Ultrasound: Imaging and Sensing 2021; 116423D (2021) https://doi.org/10.1117/12.2582054
Event: SPIE BiOS, 2021, Online Only

Conference Poster

Abstract

Delay and Sum (DAS) is one of the most prevalent and common beamforming algorithms used in ultrasound and photoacoustic image (PAI) reconstruction. This beamforming algorithm is mostly used due to its simple implementation and real time capability. However, it has several drawbacks such as high level side lobes, low image resolution and poor contrast. To address these issues, a new adaptive weighting factor has been proposed in this paper, named delay-multiply-sum-to-standard-deviation-factor (DMSSF). It improves all kinds of drawback like, lateral resolution, signal to noise ratio (SNR), and reduces side lobes of the reconstructed image compare to the other conventional methods like DAS, DAS+CF. The proposed weighting technique leads to get narrower main lobe and make the target much more detectable with respect to background. This novel method contributes significantly to the improvement of linear array based clinical photoacoustic imaging and expands the horizon of DAS image reconstruction and its potentiality.

Conference Presentation

Citation Download Citation

Souradip Paul, Anjali Thomas, and Suheshkumar Singh Mayanglambam "Improvement of delay and sum beamforming photoacoustic imaging based on delay-multiply-sum-to-standard-deviation-factor", Proc. SPIE 11642, Photons Plus Ultrasound: Imaging and Sensing 2021, 116423D (5 March 2021); https://doi.org/10.1117/12.2582054

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