Bachelor of Science, East China Normal University, 1982. Master of Science, East China Normal University, 1984. Doctor of Philosophy, Eindhoven University of Technology, The Netherlands, 1992.
Research Associate in Eindhoven University of Technology, The Netherlands, 1988-1992.
Research fellow, in (Philips) Research Institute for Perception Research, The Netherlands, 1992-1993.
Post doctoral researcher, Staffordshire University, Stafford, UK, 1993-1994.
Lecturer, University of Birmingham, Birmingham, UK, 1995-1996.
Assistant professor, 1996-2000; associate professor 2000-2004; professor 2004-2008, full professor 2008- , all in Chalmers University of Technology, Gothenburg, Sweden.
Senior member Institute of Electrical and Electronics Engineers (associate editor Institute of Electrical and Electronics Engineers trans.SMC, 2000-2005, editorial board EUTASIP Journal on Advances Signal Processing 2005^). Institute of Electrical and Electronics Engineers Swedish Signal Processing Chapter (chair-elect 2002-2004).
Irene married to Mathias Henricus Johannes Bollen on 1 July in 1992.