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Open AccessArticle

Real-Time Lossless Compression Algorithm for Ultrasound Data Using BL Universal Code

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Graduate School of Public Health, Seoul National University, Seoul 08826, Korea
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Department of Electronic Engineering, Sogang University, Seoul 04107, Korea
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Department of Healthcare IT, Inje University Kimhae, Gimhae 50834, Korea
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Department of Pharmaceutical Engineering, Inje University Kimhae, Gimhae 50834, Korea
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Department of Biomedical Engineering, Inje University Kimhae, Gimhae 50834, Korea
*
Authors to whom correspondence should be addressed.
Sensors 2018, 18(10), 3314; https://doi.org/10.3390/s18103314
Received: 17 August 2018 / Revised: 25 September 2018 / Accepted: 29 September 2018 / Published: 2 October 2018
Software-based ultrasound imaging systems provide high flexibility that allows easy and fast adoption of newly developed algorithms. However, the extremely high data rate required for data transfer from sensors (e.g., transducers) to the ultrasound imaging systems is a major bottleneck in the software-based architecture, especially in the context of real-time imaging. To overcome this limitation, in this paper, we present a Binary cLuster (BL) code, which yields an improved compression ratio compared to the exponential Golomb code. Owing to the real-time encoding/decoding features without overheads, the universal code is a good solution to reduce the data transfer rate for software-based ultrasound imaging. The performance of the proposed method was evaluated using in vitro and in vivo data sets. It was demonstrated that the BL-beta code has a good stable lossless compression performance of 20%~30% while requiring no auxiliary memory or storage. View Full-Text
Keywords: medical ultrasound; lossless compression; universal code; run-length encoding medical ultrasound; lossless compression; universal code; run-length encoding
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Kim, J.H.; Yeo, S.; Kim, J.W.; Kim, K.; Song, T.-K.; Yoon, C.; Sung, J. Real-Time Lossless Compression Algorithm for Ultrasound Data Using BL Universal Code. Sensors 2018, 18, 3314.

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