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Ultrasound Imaging Algorithm: Half-Matrix Focusing Method Based on Reciprocity

Author

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  • Xufei Guo
  • Yan Han
  • Pengfei Nie

Abstract

The ultrasonic phased array total focusing method (TFM) has the advantages of high imaging signal-to-noise ratio (SNR) and high defect resolution, but the problem of large amount data capturing and processing limits its practical industrial applications. To reduce the imaging calculation demand of the total focusing method, a half-matrix focusing method (HFM) is proposed based on the acoustic reciprocity. The method simplifies the calculation process of full-matrix data capturing (FMC) and total focus imaging. The experimental results show that the signal obtained by the linear array transceiver sensor is highly consistent, and the imaging resolution and signal-to-noise ratio of the half-matrix focusing method are slightly lower than those of full-matrix focusing method and higher than those of the B-scan imaging. However, compared with TFM, data acquisition and computational efficiency using the HFM have been improved significantly.

Suggested Citation

  • Xufei Guo & Yan Han & Pengfei Nie, 2021. "Ultrasound Imaging Algorithm: Half-Matrix Focusing Method Based on Reciprocity," Mathematical Problems in Engineering, Hindawi, vol. 2021, pages 1-11, February.
    • Handle: RePEc:hin:jnlmpe:8888469
    DOI: 10.1155/2021/8888469
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