Plane-wave Compounding with Short-lag Coherence Factor Weighting

Chichao ZHENG; Lunan ZHANG; Hao WANG; Hu PENG

doi:10.11999/JEIT180120

Volume 40 Issue 12

Nov. 2018

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Article Navigation > Journal of Electronics & Information Technology > 2018 > 40(12): 2919-2927

Chichao ZHENG, Lunan ZHANG, Hao WANG, Hu PENG. Plane-wave Compounding with Short-lag Coherence Factor Weighting[J]. Journal of Electronics & Information Technology, 2018, 40(12): 2919-2927. doi: 10.11999/JEIT180120

Citation:

Chichao ZHENG, Lunan ZHANG, Hao WANG, Hu PENG. Plane-wave Compounding with Short-lag Coherence Factor Weighting[J]. Journal of Electronics & Information Technology, 2018, 40(12): 2919-2927. doi: 10.11999/JEIT180120

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Plane-wave Compounding with Short-lag Coherence Factor Weighting

doi: 10.11999/JEIT180120

Department of Biomedical Engineering, Hefei University of Technology, Hefei 230009, China

Funds: The National Natural Science Foundation of China (61201060, 61172037)

Received Date: 2018-01-29
Rev Recd Date: 2018-06-06

Available Online: 2018-08-30

Publish Date: 2018-12-01

Abstract

Abstract

The Coherent Plane-Wave Compounding (CPWC) algorithm is based on the recombination of several plane-waves with different steering angles, which can achieve high-quality images with high frame rate. However, CPWC ignores the coherence between the plane-wave imaging results. Coherence Factor (CF) weighted algorithm can effectively improve the imaging contrast and resolution, while it degrades the background speckle quality. A Short-Lag Coherence Factor (SLCF) algorithm for CPWC is proposed. SLCF uses the angular difference parameter to ascertain the order of the coherence factor and calculates the coherence factor for the plane-waves with small angular difference. Then, SLCF is utilized to weight CPWC to obtain the final images. Simulated and experimental results show that SLCF-weighted algorithm can improve the imaging quality in terms of lateral resolution and Contrast Ratio (CR), compared with CPWC. In addition, in comparison with CF and Generalized Coherence Factor (GCF) weighted algorithm, SLCF can achieve better background speckle quality and it has lower computational complexity.
- Ultrasound imaging,
- Coherent Plane-Wave Compounding (CPWC),
- Short-Lag Coherence Factor (SLCF),
- Angle difference parameter

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References

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