Goal: To contribute to solutions of recognition problems, relevant to the human visual system and to human comfort.  

We have been addressing the following issues: 

Orientation and frequency description of still and video images for general purposes, 
Decompositions based on Gabor filters, 
Dense orientation maps, 
Interpretation and modelling of dense orientation maps via differential operators (e.g. tensors, Lie groups), modelling dense symmetry fields. 

We have been using our results in the following applications: 

Biometric person authentication by audio and video, face recognition, fingerprint recognition
Content based multi-media data base queries 
Localization, identification, and tracking of tagged objects in video;  
Unsupervised image segmentation, and texture analysis.  

Projects (Select): 

• Facial Analysis in the Era of Mobile Devices and Face Masks (Ansiktsanalys i eran av mobila enheter och ansiktsmasker)
  • Duration and Project ID: 2022-01-01 to 2025-12-31 / 2021-05110_VR
• Face Detection and Robust Recognition with Respect to Image Deformations (Ansiktsdetektering och robust igenkänning med avseende på bild deformationer)
  • Duration and Project ID: 2013-01-01 to 2016-12-31 / 2012-04313_VR
• Lip Movement, Face, and Speech Analysis in Synergy for Human-Machine Interface (Läpprörelse, ansikt, och tal analys i synergi för människa-maskin gränssnitt)
  • Duration and Project ID: 2009-01-01 to 2011-12-31 / 2008-03876_VR
• Scale, Orientation, and Lighting Invariant Coding and Decoding -- A Study on Invariant Visual Codes (Skala, orientering och belysning invariant kodning och avkodning -- En studie om invarianta visuella koder)
  • Duration and Project ID: 2011-01-01 to 2013-12-31 / 2011-05819_VR

• Network of excellence: BIOSECURE (EU research school on biometric identification)
• OCR for modification based scripts: Ethiopian (Swedish SIDA )
• OCR for modification based scripts: Sinhala (Swedish SIDA)
• Image content query and retrieval for proteomics (Swedish SSF)

Members :

• Prof. Josef Bigun,  
• Dr. Fernando Alonso-Fernandez
• Dr. Kevin Hernandez Diaz

• Dr. Yaregal Assabie
• Håkan Eriksson
• Dr. Maycel Faraj
  
• Dr. Hartwig Fronthaler
• Dr. Klaus Kollreider
• Dr. Stefan Karlsson
• Dr. Anna Mikaelyan
• Dr. Kenneth Nilsson
• Patrik Nilsson
• Martin Persson
• Dr. Lalith Premaratne
• Dr. Fabrizio Smeraldi
• Dr. Dereje Teferi
• Heike Walter