He is leading the COMPUTER VISION GROUP at LAMI. His activities have been including motion image analysis, texture image analysis, and classification. His publications and interests have been in the domain of computer vision and pattern recognition, understanding biological recognition mechanisms with special emphasis on symmetries and infinitesimal operators as analysis tools.

Since 1994 he has been an elected member of the executive committee of the International Association for Pattern Recognition, IAPR. He has been in technical commitees of several national and international conferences in computer vision and pattern recognition. He is a member of the editorial boards of IEEE Image Processing, and Pattern Recognition Letters.

He is now professor at Halmstad University, Sweden.