Paper Info
Title
Lossless compression of biomedical signals by MPEG-4 ALS with enhanced encoding tools
Abstract
Enhanced encoding tools for MPEG-4 audio lossless coding (ALS) international standard were developed, with the goal of improving compression performance of time-series biomedical data. The multichannel coding (MCC) tool of this standard exploits interchannel redundancies to reduce the bit rate. To improve compression performance with the MCC, we have devised a multichannel linear prediction tool, which achieves around a 0.1% better compression ratio than that of the conventional method. We have also developed an interchannel dependency analysis tool, which performs about 1000 times faster than the conventional one. By combining these tools, biomedical signals are losslessly compressed to about 1/3 in a practical computational load. Compressed biomedical data will be decoded even 100 years from now, because the bitstream still remains compliant with the MPEG standard.
Year
DOI
Venue
2008
10.1109/MMSP.2008.4665066
Cairns, Qld
Keywords
Field
DocType
audio coding,medical signal processing,MPEG-4 audio lossless coding,biomedical signals,interchannel dependency analysis tool,lossless compression,multichannel coding tool,multichannel linear prediction tool,time-series biomedical data
Computer science,Audio Lossless Coding,Artificial intelligence,Computer hardware,MPEG-4,Context-adaptive binary arithmetic coding,Computer vision,Data compression ratio,Transform coding,Speech recognition,Data compression,Bitstream,Lossless compression
Conference
ISBN
Citations 
PageRank 
978-1-4244-2295-1
0
0.34
References 
Authors
3
3
Name
Order
Citations
PageRank
Yutaka Kamamoto13910.01
Harada Noboru26725.07
Takehiro Moriya38924.08