Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1993.11a
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- Pages.338-341
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- 1993
EEG data compression using subband coding techniques
대역 분할 부호화 기법을 이용한 EEG 데이타 압축
- Lee, Jong-Ug (Dept. of Electrical Engineering, Yonsei Univ.) ;
- Huh, Jae-Man (Dept. of Electrical Engineering, Yonsei Univ.) ;
- Kim, Taek-Soo (Dept. of Electrical Engineering, Yonsei Univ.) ;
- Park, Sang-Hui (Dept. of Electrical Engineering, Yonsei Univ.)
- Published : 1993.11.26
Abstract
A EEG(ElectroEncephaloGram) compression scheme based on subband coding techniques is presented in this paper. Considering the frequency characteristics of EEG, the raw signal was decomposed into different frequency bands. After decomposition, optimal bit allocation was done by adapting to the standard deviation in each frequency bands, and decomposed signals were quantized using pdf(probability density function)-optimized nonuniform quantizer. Based on the above mentioned coding scheme, coding results of various multichannel EEG signal were shown with compression ratio and SNR(signal-to-noise ratio).
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