Robust and accurate ultrasound 3-D imaging algorithm incorporating adaptive smoothing techniques

Kenshi Saho, Tomoki Kimura, Shouhei Kidera, Hirofumi Taki, Takuya Sakamoto, Toru Sato

研究成果: Article査読

抄録

Many researchers have proposed ultrasound imaging techniques for product inspection; however, most of these techniques are aimed at detecting the existence of flaws in products. The acquisition of an accurate three-dimensional image using ultrasound has the potential to be a useful product inspection tool. In this paper we apply the Envelope algorithm, which was originally proposed for accurate UWB (UltraWide-Band) radar imaging systems, to ultrasound imaging. We show that the Envelope algorithm results in image deterioration, because it is difficult for ultrasound measurements to achieve high signal to noise (S/N) ratio values as a result of a high level of noise and interference from the environment. To reduce errors, we propose two adaptive smoothing techniques that effectively stabilize the estimated image produced by the Envelope algorithm. An experimental study verifies that the proposed imaging algorithm has accurate 3-D imaging capability with a mean error of 6.1 μm, where the transmit center frequency is 2.0MHz and the S/N ratio is 23 dB. These results demonstrate the robustness of the proposed imaging algorithm compared with a conventional Envelope algorithm.

本文言語English
ページ(範囲)572-580
ページ数9
ジャーナルIEICE Transactions on Communications
E95-B
2
DOI
出版ステータスPublished - 2012 2月

ASJC Scopus subject areas

  • ソフトウェア
  • コンピュータ ネットワークおよび通信
  • 電子工学および電気工学

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