Title :
Lossy compression of multichannel ECG based on 2-D DCT and pre-processing
Author :
Lukin, Vladimir ; Zriakhov, Mikhail ; Zelensky, Alexander A. ; Egiazarian, Karen ; Varri, Alpo
Author_Institution :
Dept. of Receivers, Transmitters & Signal Process., Nat. Aerosp. Univ., Kharkov, Ukraine
Abstract :
We propose and analyze a novel efficient technique for lossy compression of multichannel ECG records that provides a reasonable trade-off between distortions introduced and compression ratio provided. This technique exploits inter-channel correlation of signals in cardio-complex leads by means of using a 2-D DCT and special operations of data pre-processing that improve compression performance. Real practical examples proving the proposed coder efficiency are presented.
Keywords :
data compression; discrete cosine transforms; electrocardiography; electronic data interchange; telemedicine; 2D DCT; cardio-complex; coder efficiency; compression ratio; data preprocessing; distortions; interchannel correlation; lossy compression; multichannel ECG; 2-D DCT; Lossy compression of multichannel ECG; pre-processing;
Conference_Titel :
Modern Problems of Radio Engineering, Telecommunications and Computer Science, 2008 Proceedings of International Conference on
Conference_Location :
Lviv-Slavsko
Print_ISBN :
978-966-553-678-9
