摘要
如何实时、高效地存储超声成像射频回波线数据是实现超声成像后期调节、参数优化和会诊的关键。本文利用目前信号采样和压缩领域全新的压缩感知理论,结合超声射频回波线数据的相关性和稀疏性,提出基于压缩感知的超声射频回波线数据压缩算法。该算法能大大降低数据的大小,相比于其他算法,不需要通过计算所有分量后再对计算出来的信号进行排序和编码,提高了压缩效率。
How to store the radio frequency echo data of ultrasound image in real-time and high-efficiency is the key problem of post imaging adjustment,parameter optimization and consultation of doctors.A novel compressive sensing based compressed method for ultrasound imaging radio frequency echo line data is proposed.The method takes full use of the correlation and sparsity of the radio frequency line data to achieve high performance.Compare with other compressed method,the compressed data are calculation directly from the projection of raw data without other additional calculation in our method.
出处
《中国医疗器械信息》
2015年第6期15-18,共4页
China Medical Device Information
关键词
压缩感知
超声成像
稀疏表示
数据存储
compressive sensing
ultrasound imaging
sparse representation
data compressed
