https://scholars.lib.ntu.edu.tw/handle/123456789/606985
標題: | A color doppler processing engine with an adaptive clutter filter for portable ultrasound imaging devices | 作者: | Lo Y.-L CHIA-HSIANG YANG |
關鍵字: | Blood-tissue discriminator;Clutter filter;Color Doppler;Design optimization;Ultrasound imaging;Adaptive filters;Blood;Clutter (information theory);Color;Computational complexity;Doppler effect;Eigenvalues and eigenfunctions;Engines;Image enhancement;Radar clutter;Ultrasonic devices;Ultrasonic imaging;Clutter filters;Color Doppler imaging;Down sampling;Imaging performance;Low velocities;Portable ultrasound;Processing time;Adaptive filtering | 公開日期: | 2021 | 卷: | 2021-June | 起(迄)頁: | 7893-7897 | 來源出版物: | ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings | 摘要: | This paper presents an optimized color Doppler processing engine for portable ultrasound devices. The imaging performance is improved by the proposed adaptive clutter filter that separates the clutter from the blood signal in the frequencyeigenvalue space. The adaptive clutter filter provides high attenuation on clutter and also reserves the low-velocity blood flow. Compared to the conventional eigenvalue-based and frequency-based clutter filters, this work achieves 2.5- to-17.5dB and 1-to-12.5dB improvements, respectively, in blood-to-clutter ratio (BCR) based on an in vivo dataset with 16 images. The blood-tissue discriminator is re-arranged and integrated with the clutter filter to further enhance the imaging performance with less computational complexity. The computational complexity is reduced by 48-78% by leveraging the reduced processed area. Randomized spatial down-sampling is adopted to further reduce the processing time. An overall reduction of 60% in processing time is achieved. This work provides a promising solution to color Doppler imaging for portable ultrasound devices. ? 2021 IEEE. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85115068433&doi=10.1109%2fICASSP39728.2021.9414344&partnerID=40&md5=81bfb801e577b898d12f2efc520d0db0 https://scholars.lib.ntu.edu.tw/handle/123456789/606985 |
ISSN: | 15206149 | DOI: | 10.1109/ICASSP39728.2021.9414344 |
顯示於: | 電機工程學系 |
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