Signal Processing Algorithm Group, SPAG

Tampere University of Technology

Director: Academy Professor Jaakko Astola
tel. +358 3 3115 2923
fax. +358 3 3115 3817
E-mail: jaakko.astola(at)tut.fi

The Group is internationally recognised for its research work on nonlinear and linear signal and image processing. Research within SPAG currently covers various areas of digital signal processing (DSP), which can be divided into the following fields:
1) Compression techniques, with an emphasis on speech and audio signal (Professor Ioan Tabus)
2) Image and video signal analysis and processing (Professor Moncef Gabbouj)
3) Digital linear filtering and filter banks (Professor Tapio Saramäki)
4) Spectral and algebraic methods in DSP (Professor Karen Egiazarian)
5) Biomedical signal processing (Dr. Alpo Värri)

These fields interact in a number of ways. Spectral techniques can for instance be used in compression and biomedical signal processing. Moreover, these fields share common applications, such as telecommunications, multimedia communication, image and video processing and analysis and biomedical signal processing. Practical applications include more powerful transfer mechanisms of data over digital networks; good quality digital radio and enhanced television pictures; speech controlled terminals (e.g. mobile phones which understand spoken language); data retrieval from large databases; and automatic analysis of brain research on fundamental signal processing problems in these fields.

SPAG members cooperate with visiting professors and international experts hosted by Tampere International Center for Signal Processing (TICSP). The personnel of SPAG comprises four professors and some 80 researchers from 15 countries.

Centre of Excellence pages