摘要
近年来，HOLTER产品向长记录时间发展。为降低存贮成本，有必要对心电数据进行压缩。本文首先对心电数据用一种类似DPCM的方式计算差值，缩小数值范围，再运用HUFFMAN编码和算术编码的恰当算法，使之适用于八位单片机，实现了实时处理，得到了2－4倍的压缩比。
Resently, HOLTER product is develping to long time recording. In order to decrease the cost, compression of ECG data is needed. It is done first by some kind of DPCM to decrease the range of the data Value, then by using suitable arithmetic of HUFFMAN coding's and Arithmetic coding's. All the methods can be realized in microprocessor and get compression ratio of 2-4.
出处
《中国医疗器械杂志》
CAS
1997年第4期187-190,共4页
Chinese Journal of Medical Instrumentation
