Jörgen Ahlberg’s Publications

2019

N. Markuš, I. S. Pandžić, and J. Ahlberg, “Learning Local Descriptors by Optimizing the Keypoint-Correspondence Criterion: Applications to Face Matching, Learning from Unlabeled Videos and 3D-Shape Retrieval”, IEEE Transactions on Image Processing, Vol. 28, Issue 1, pp. 279-290, Jan 2019.
DOI: 10.1109/TIP.2018.2867270

2018

I. Gogić, M. Manhart, I. S. Pandžić, and J. Ahlberg, “Fast Facial Expression Recognition using Local Binary Features and Shallow Neural Networks,” The Visual Computer (TVCJ), 2018.
DOI: 10.1007/s00371-018-1585-8

S. Hatami, A. Dahl-Jendelin, J. Ahlberg, and C. Nelsson, “Selective Laser Melting Process Monitoring by Means of Thermography,” European Powder Metallurgy Congress (Euro PM), Bilbao, Spain, 2018, paper 3957771.

J. Ahlberg, A. Åström, and R. Forchheimer, “Simultaneous Sensing, Read-Out, and Classification on an Intensity-Ranking Image Sensor,” International Journal of Circuit Theory and Applications, Vol. 46, pp. 1606-1619, September 2018.
DOI: 10.1002/cta.2549

N. Markuš, I. Gogić, I. S. Pandžić, and J. Ahlberg, “Memory-efficient Global Refinement of Decision-Tree Ensembles and its Application to Face Alignment,” British Machine Vision Conference (BMVC), Newcastle upon Tyne, UK, September 2018, paper 0896.
BMVC online proceedings (pdf)
Presentation at BMVC

A. Berg, J. Ahlberg, and M. Felsberg, “Generating Visible Spectrum Images from Thermal Infrared,” IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), Salt Lake City, UT, June 2018, pp. 1224-1233.
DOI: 10.1109/CVPRW.2018.00159
CVF Open Access

2017

T. Nawaz, A. Berg, J. Ferryman, J. Ahlberg, and M. Felsberg, “Effective evaluation of privacy protection techniques in visible and thermal imagery,” Journal of Electronic Imaging, Vol. 26, Issue 5, 051408, September 2017.
DOI: 10.1117/1.JEI.26.5.051408

J. Heggenes, A. Odland, T. Chevalier, J. Ahlberg, A. Berg, H. Larsson, and D. K. Bjerketvedt, “Herbivore grazing - or trampling? The trampling effects by a large ungulate in cold high-latitude ecosystems,” Ecology and Evolution, Vol. 7, No. 16, pp. 6423-64321, July 2017.
DOI: 10.1002/ece3.3130

J. Ahlberg, I. G. Renhorn, T. Chevalier, J. Rydell, and D. Bergström, “Three-dimensional hyperspectral imaging technique,” Proceedings of SPIE, Vol. 10198 (Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XXIII), paper 1019805, April 2017.
DOI: 10.1117/12.2262456

A. Berg, J. Ahlberg, and M. Felsberg “Object Tracking in Thermal Infrared Imagery based on Channel Coded Distribution Fields,” Swedish Symposium on Image Analysis (SSBA), Linköping, Sweden, March 2017.

J. Ahlberg, “Optimizing object, atmosphere, and sensor parameters in thermal hyperspectral imagery,” IEEE Transactions on Geoscience and Remote Sensing, Vol. 55, Issue 2, pp. 658-670, February 2017.
DOI: 10.1109/TGRS.2016.2613685

2016

N. Markuš, I. S. Pandžić, and J. Ahlberg, “Learning Local Descriptors by Optimizing the Keypoint-Correspondence Criterion,” International Conference on Pattern Recognition (ICPR), Cancun, Mexico, December 2016, pp. 2380-2385.
DOI: 10.1109/ICPR.2016.7899992

A. Berg, J. Ahlberg, and M. Felsberg, “Enhanced analysis of thermographic images for monitoring of district heat pipe networks,” Pattern Recognition Letters, Vol. 83, Part 2, pp. 215-223, November 2016.
DOI: 10.1016/j.patrec.2016.07.002

M. Felsberg et al., “The Thermal Infrared Visual Object Tracking VOT-TIR2016 Challenge Results,” 4th Visual Object Tracking Challenge (VOT), European Conference on Computer Vision (ECCV) Workshops, Amsterdam, The Netherlands, October 2016.

A. Berg, J. Ahlberg, and M. Felsberg, “Channel Coded Distribution Field Tracking for Thermal Infrared Imagery,” IEEE Conference on Computer Vision and Pattern Recognition Workshops (CVPRW), Las Vegas, NV, July 2016, pp. 1248-1256.
DOI: 10.1109/CVPRW.2016.158
CVF Open Access

A. Berg, M. Felsberg, G. Häger, and J. Ahlberg, “An Overview of the Thermal Infrared Visual Object Tracking VOT-TIR2015 Challenge,” Swedish Symposium on Image Analysis (SSBA), Uppsala, Sweden, March 2016.

2015

M. Felsberg et al., “The Thermal Infrared Visual Object Tracking VOT-TIR2015 Challenge Results,” 3rd Third Visual Object Tracking Challenge (VOT), IEEE International Conference on Computer Vision (ICCV) Workshops, Santiago, Chile, December 2015, pp. 639-651.
DOI: 10.1109/ICCVW.2015.86

A. Berg, J. Ahlberg and M. Felsberg, “A Thermal Object Tracking Benchmark,” IEEE International Conference on Advanced Video- and Signal-based Surveillance (AVSS), Karlsruhe, Germany, August 2015.
DOI: 10.1109/AVSS.2015.7301772

J. Ahlberg and A. Berg, “Evaluating Template Rescaling in Short-Term Single-Object Tracking,” IEEE International Workshop on Performance Evaluation of Tracking and Surveillance (PETS), IEEE International Conference on Advanced Video- and Signal-based Surveillance (AVSS) Workshops, Karlsruhe, Germany, August 2015.
DOI: 10.1109/AVSS.2015.7301745

A. Berg, K. Öfjäll, J. Ahlberg and M. Felsberg, “Detecting rails and obstacles using a train-mounted thermal camera,” Lecture Notes in Computer Science Vol. 9127: Proceedings of the 19th Scandinavian Conference on Image Analysis (SCIA), Copenhagen, Denmark, June 15-17, 2015, pp. 492-503.
DOI: 10.1007/978-3-319-19665-7

J. Ahlberg, “Visualization techniques for surveillance: Visualizing what cannot be seen and hiding what should not be seen,” Journal of Art History, Vol. 84, Issue 2, pp. 123-138, May 2015.
DOI: 10.1080/00233609.2015.1019921

N. Markuš, M. Fratarcangeli, I. S. Pandžić, and J. Ahlberg, “Fast Rendering of Image Mosaics and ASCII Art,” Computer Graphics Forum, Vol. 34, Issue 6, pp. 251-261, 2015.
DOI: 10.1111/cgf.12597

J. Ahlberg, N. Markuš and A. Berg, “Multi-person fever screening using a thermal and a visual camera,” Swedish Symposium on Image Analysis (SSBA), Ystad, Sweden, March 2015.

A. Berg, J. Ahlberg, and M. Felsberg, “A thermal infrared dataset for evaluation of short-term tracking methods,” Swedish Symposium on Image Analysis (SSBA), Ystad, Sweden, March 2015.

2014

N. Markuš, M. Frljak, I. S. Pandžić, J. Ahlberg, and R. Forchheimer, ”Fast Localization of Facial Landmark Points,” Proceedings of the Croatian Computer Vision Workshop (CCVW), Zagreb, Croatia, 2014, pp. 39-43. arXiv:1403.6888v2
CCVW online proceedings

A. Berg and J. Ahlberg, “Classification and temporal analysis of district heating leakages in thermal images,” Proceedings of the 14th International Symposium on District Heating and Cooling (DHC), Stockholm, September 2014.
Published online.

A. Berg and J. Ahlberg, “Classification of leakage detections acquired by airborne thermography of district heating networks,” Proceedings of the 8th IAPR Workshop on Pattern Recognition in Remote Sensing (PRRS), Stockholm, August 2014.
DOI: 10.1109/PRRS.2014.6914288

A. Runnemalm, J. Ahlberg, A. Appelgren, and S. Sjökvist, "Automatic Inspection of Spot Welds by Thermography", Journal of Nondestructive Evaluation, Vol. 33, Issue 3, pp. 398-406, 2014.
DOI: 10.1007/s10921-014-0233-0.

O. Friman, P. Follo, J. Ahlberg, and S. Sjökvist, “Methods for Large-Scale Monitoring of District Heating Systems Using Airborne Thermography,” IEEE Transactions on Geoscience and Remote Sensing, Vol. 52, No. 8, pp. 5175-5182, August 2014.
DOI: 10.1109/TGRS.2013.2287238.

S. Hatefipour, J. Ahlberg, J. Wren and A. Runnemalm, “Thermal non-destructive testing: Modeling, simulation and experiments for improved localization of hidden defects”, 12th International Conference on Quantitative InfraRed Thermography (QIRT), Bordeaux, France, July 2014.
DOI: 10.21611/qirt.2014.018

N. Markuš, M. Frljak, I. S. Pandžić, J. Ahlberg, and R. Forchheimer, “Eye pupil localization with an ensemble randomized trees,” Pattern Recognition, Vol. 47, Issue 2, pp. 578-587, February 2014. DOI: 10.1016/j.patcog.2013.08.008.

A. Berg and J. Ahlberg, “Classifying district heating network leakages in aerial thermal imagery,” Swedish Symposium on Image Analysis (SSBA), Luleå, Sweden, March 2014.

N. Markuš, M. Frljak, I. S. Pandžić, J. Ahlberg, and R. Forchheimer, “Localizing Facial Landmark Points with Pixel Intensity Comparisons Organized in Decision Trees,” Swedish Symposium on Image Analysis (SSBA), Luleå, Sweden, March 2014.

2013

M. Felsberg, F. Larsson, J. Wiklund, N. Wadströmer, and J. Ahlberg, “Online Learning of Correspondences between Images,” IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 35, Issue 1, pp. 118-129.
DOI: 10.1109/TPAMI.2012.65.

2012

N. Markuš, M. Frljak, I. S. Pandžić, J. Ahlberg, and R. Forchheimer, “High-performance face tracking,” ACM 3rd International Symposium on Facial Analysis and Animation (FAA), Vienna, Austria, September 2012.

O. Friman, P. Follo, J. Ahlberg, and S. Sjökvist, “Remote Thermography - Detection of Leakages in Local District Heating Pipes,” Swedish Symposium on Image Analysis (SSBA), Stockholm, Sweden, March 2012. Best Industry-relevant Paper Award

2011

J. Ahlberg and I. S. Pandžić, “Facial Action Tracking” in S. Z. Li and A. K. Jain (editors), Handbook of Face Recognition, 2nd Ed, pp. 461-486, Springer-Verlag, London, 2011.
DOI: 10.1007/978-0-85729-932-1_18.

O. Friman, G. Tolt, J. Ahlberg, “Illumination and shadow compensation of hyperspectral images using a digital surface model and non-linear least squares estimation,” Proceedings of SPIE, Vol. 8180 (Image and Signal Processing for Remote Sensing XVII), 81800Q, 2011.
DOI: 10.1117/12.898084.

D. Hamoir, L. Hespel, P. Déliot, Y. Boucher, O. Steinvall, J. Ahlberg, H. Larsson, D. Letalick, P. Lutzmann, E. Repasi, G. Ritt, “Results of ACTIM: An EDA study on spectral laser imaging,” Proceedings of SPIE, Vol. 8186 (Electro-Optical Remote Sensing, Photonic Technologies, and Applications V), 81860M, 2011.
DOI: 10.1117/12.903672.

M. Shimoni, G. Tolt, C. Perneel, J. Ahlberg, “Detection of vehicles in shadow areas,” Proceedings of the 3rd IEEE GRSS Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing (WHISPERS), Lisbon, Portugal, June 2011, pp. 1-4.
DOI: 10.1109/WHISPERS.2011.6080929

M. Shimoni, G. Tolt, C. Perneel, J. Ahlberg, “Detection of vehicles in shadow areas using combined hyperspectral and LIDAR data,” Proceedings of the IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Vancouver, Canada, July 2011, pp. 4427-4430.
DOI: 10.1109/IGARSS.2011.6050214

G. Tolt, M. Shimoni, J. Ahlberg, “A shadow detection method for remote sensing images using VHR hyperspectral and LIDAR data,” Proceedings of the IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Vancouver, Canada, July 2011, pp. 4423-4426.
DOI: 10.1109/IGARSS.2011.6050213

2010

M. Felsberg, F. Larsson, V. Zografos, J. Wiklund, N. Wadströmer, J. Ahlberg, “Online Learning of non-linear Camera Mappings,” National Symposium on Technology and Methodology for Security and Crisis Management (TAMSEC), Linköping, Sweden, October 2010.

O. Steinvall, I. Renhorn, J. Ahlberg, H. Larsson, D. Letalick, E. Repasi, P. Lutzmann, G. Anstett, D. Hamoir, L. Hespel, Y. Boucher, “ACTIM: An EDA initiated study on active spectral imaging,” Proceedings of SPIE, Vol. 7835 (Electro-Optical Remote Sensing, Photonic Technologies, and Applications IV), 78350C, 2010.
DOI: 10.1117/12.865041.

E. Ringaby, J. Ahlberg, N. Wadströmer, P.-E. Forssén, “Co-aligning aerial hyperspectral push-broom strips for change detection,” Proceedings of SPIE, Vol. 7835 (Electro-Optical Remote Sensing, Photonic Technologies, and Applications IV), 78350Y, Toulouse, France, 2010.
DOI: 10.1117/12.865034.

M. Andersson, S. Ntalampiras, T. Ganchev, J. Rydell, J. Ahlberg, “Fusion of Acoustic and Optical Sensor Data for Automatic Fight Detection in Urban Environments,” 13th International Conference on Information Fusion, Edinburgh, July 2010.
Pdf from ISIF.
IEEE Xplore.

N. Wadströmer, J. Ahlberg and T. Svensson, “A new hyperspectral dataset and some challenges,” Proceedings of SPIE, Vol. 7695 (Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XVI), 76950M, Orlando, FL, 2010.
DOI: 10.1117/12.851325.

J. Ahlberg and I. G. Renhorn and N. Wadströmer, “An information measure of sensor performance and its relation to the ROC curve,” Proceedings of SPIE, Vol. 7695 (Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XVI), 769520, Orlando, FL, 2010.
DOI: 10.1117/12.851322.

E. Ringaby, J. Ahlberg, P.-E. Forssén and N. Wadströmer, “Co-alignment of Aerial Push-Broom Strips using Trajectory Smoothness Constraints,” Swedish Symposium on Image Analysis (SSBA), pp. 63–66, Uppsala, Sweden, 11-12 March 2010.

2009

M. Andersson, J. Rydell, and J. Ahlberg, “Estimation of crowd behaviour using sensor networks and sensor fusion,” 12th International Conference on Information Fusion, pp. 396–403, Seattle, WA, July 2009.
IEEE Xplore.

2008

J. Ahlberg, D. Arsic, T. Ganchev, A. Linderhed, P. Menezes, S. Ntalampiras, T. Olma, I. Potamitis and J. Ros, “Prometheus: Prediction and interpretation of human behaviour based on probabilistic structures and heterogeneous sensors,” System demonstration in the European Conference on Artificial Intelligence (ECAI), Patras, Greece, July 2008

2007

N. Ingemars and J. Ahlberg, “Feature-based Face Tracking using Extended Kalman Filtering,” Swedish Symposium on Image Analysis (SSBA), Linköping, Sweden, March 2007.

2006

F. Dornaika and J. Ahlberg, “Fitting 3D Face Models for Tracking and Active Appearance Model Training,” Image and Vision Computing, Vol. 24, pp. 1010–1024, 2006.
DOI: 10.1016/j.imavis.2006.02.025

J. Ahlberg and P. Andersson, “Surveillance Systems for Urban Crisis Management,” NATO RTE URBAN Sensors,  Shrivenham, UK, March 2005.

O. Brattberg and J. Ahlberg, “Analysis of Multispectral Reconnaissance Imagery for Target Detection and Operator Support,”  Swedish Symposium on Image Analysis (SSBA), pp. 17–20, Umeå, Sweden, March 2006.

2005

J. Ahlberg and L. Klasén, “Surveillance Systems for Urban Crisis Management,”Swedish Symposium on Image Analysis (SSBA), pp. 41–44, Malmö, Sweden, March 2005.

M. Ulvklo, J. Nygårds, J. Karlholm, P. Skoglar, J. Ahlberg, J. Nilsson, “A sensor management framework for autonomous UAV surveillance,”Proceedings of SPIE, Vol. 5787 (Airborne Intelligence, Surveillance, Reconnaissance Systems and Applications II), pp. 48–61, Orlando, FL, April 2005.
DOI: 10.1117/12.605023.

J. Ahlberg and I. Renhorn, “An information-theoretic approach to band selection,”Proceedings of SPIE, Vol. 5811 (Targets and Backgrounds XI: Characterization and Representation), pp. 15–23, Orlando, FL, April 2005.
DOI: 10.1117/12.607136.

2004

F. Dornaika and J. Ahlberg, “Fast and Reliable Active Appearance Model Search for 3D Face Tracking,” IEEE Transactions on Systems, Man, and Cybernetics—Part B: Cybernetics, Vol. 34, No. 4, pp. 1838–1853, August 2004.
DOI: 10.1109/TSMCB.2004.829135

F. Dornaika and J. Ahlberg, “Face and Facial Feature Tracking using Deformable Models”, International Journal on Image and Graphics, Vol. 4, No. 3, pp. 499–532, July 2004.
DOI: 10.1142/S021946780400152X

J. Ahlberg and F. Dornaika, “Parametric Face Modelling and Tracking”, S.Z. Li and A.K. Jain (editors), Handbook of Face Recognition, pp. 65–87, Springer, 2004.

D. Letalick, J. Ahlberg, P. Andersson, T. Chevalier, C. Grönwall, H. Larsson, Å. Persson, and L. Klasén, “3-D imaging by laser radar and applications in preventing and combating crime and terrorism,” Proceedings from NATO RTO Symposium on Systems, Concepts and Integration: Methods and Technologies Defence Against Terrorism, pp. 16-1–16-8, London, UK, October 2004.

F. Dornaika and J. Ahlberg, “Model-based head and facial motion tracking,” in N. Sebe, M.S. Lew, and T.S. Huang (editors), Computer Vision in Human-Computer Interaction: Proceedings from ECCV 2004 Workshop on Human-Computer Interaction, Prague, Czech Republic, May 2004. Lecture Notes in Computer Science Vol. 3058/2004, ISBN 3-540-22012-7, Springer-Verlag, Heidelberg, 2004.

T. Horney, J. Ahlberg, C. Grönwall, M. Folkesson, K. Silvervarg, J. Fransson, L. Klasén, E. Jungert, F. Lantz, M. Ulvklo, “An Information System for Target Recognition”, Proceedings of SPIE, Vol. 5434 (Multisensor, Multisource Information Fusion: Architectures, Algorithms, and Applications), pp. 163–175, Orlando, FL, April 2004.
DOI: 10.1117/12.540968.

J. Ahlberg, T. Chevalier, P. Andersson, and L. Klasén, “Target Detection in Multispectral Imagery,” Swedish Symposium on Image Analysis (SSBA), pp. 50–53, Uppsala, Sweden, March 2004.

J. Ahlberg, I. S. Pandžić, M. Wzorek, P. Rudol, “Analyzing, Synthesizing, and Delivering Face Animation”, Swedish Symposium on Image Analysis (SSBA), pp. 174–177, Uppsala, Sweden, March 2004.

2003

J. Ahlberg and R. Forchheimer, “Face Tracking for Model-based Coding and Face Animation,” International Journal on Imaging Systems & Technology, Vol. 13, Issue 1, pp. 8–22, 2003.
DOI: 10.1002/ima.10042.

I. S. Pandžić, J. Ahlberg, M. Wzorek, P. Rudol, and M. Mosmondor, “Faces Everywhere: Towards Ubiquitous Production and Delivery of Face Animation,” International Conference on Mobile and Ubiquitous Multimedia (MUM), Norrköping, Sweden, December 2003. Best Paper Award
Linköping University Electronic Press

F. Dornaika and J. Ahlberg, “Efficient Active Appearance Model for Real-Time Head and Facial Feature Tracking”, IEEE ICCV International Workshop on Analysis and Modelling of Faces and Gestures (AMFG), pp. 173–180, Nice, France, October 2003.
DOI: 10.1109/AMFG.2003.1240840.

F. Dornaika and J. Ahlberg, “Face Model Adaptation for Tracking and Active Appearance Model Training”, 14th British Machine Vision Conference (BMVC), Norwich, UK, September 2003.

F. Dornaika and J. Ahlberg, “Model-based Head and Facial Motion Tracking,” accepted for publication at the 12th International Conference on Image Analysis and Processing (ICIAP), Mantova, Italy, September 2003.

F. Dornaika and J. Ahlberg, “Active Appearance Model Search with Motion Compensation for 3D Face Tracking,” in E. Izquierdo, Digital Media Processing for Multimedia Interactive Services: Proceedings from the 4th European Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS), London, UK, April 2003, World Scientific Publishing, Singapore, ISBN 981-238-355-7, 2003, pp. 359–364.

I. S. Pandžić, J. Ahlberg, and L. You, “Emotion rendering as benchmark for face models,” Web3D, St Malo, France, March 2003.

J. Ahlberg, L. Klasen, C. Grönwall, M. Ulvklo, E. Jungert, “Automatic Target Recognition on a Multi-Sensor Platform,” Swedish Symposium on Image Analysis, pp.93-96, Stockholm, Sweden, March 2003. Best Industry-relevant Paper Award

F. Dornaika and J. Ahlberg, “Fast and Reliable Active Appearance Model Search for 3D Face Tracking,” Model-based Imaging, Rendering, Image Analysis, and Graphical Special Effects (Mirage), Rocquencourt, France, March 2003.

2002

J. Ahlberg, “An Active Model for Facial Feature Tracking,” EURASIP Journal on Advances in Signal Processing, Vol. 2002, No. 6, pp. 566–571, 2002.
DOI: 10.1155/S1110865702203078.

J. Ahlberg, “Extracting MPEG-4 FAPs from Video” in I. S. Pandžić and R.Forchheimer (editors), MPEG-4 Facial Animation – The standard, implementations and applications, pp. 103–114, John Wiley & Sons, 2002.

J. Ahlberg, I. S. Pandžić, L. You, “Evaluating Face Models Animated by MPEG-4,” in I. S. Pandžić and R. Forchheimer (editors), MPEG-4 Facial Animation – The standard, implementations and applications, pp. 291–296, John Wiley & Sons, 2002.

J. Ahlberg, “Face and Facial Feature Tracking using the Active Appearance Algorithm,” in P. Remagnino, G.A. Jones, N. Paragios, and C.S Regazzoni (editors), Video-based surveillance systems: Computer Vision and Distributed Processing, pp. 113–121, Kluwer, Boston, MA, 2002.

F. Dornaika and J. Ahlberg, “Face Model Adaptation using Robust Matching and the Active Appearance Algorithm,” IEEE Workshop on Applications of Computer Vision (WACV), pp. 3–7, Orlando, FL, December 2002.
DOI: 10.1109/ACV.2002.1182135. Best Paper Award

J. Ahlberg, Model-based Coding – Extraction, Coding, and Evaluation of Face Model Parameters, PhD Thesis No. 761, Dept. of Electrical Engineering, Linköping University, Sweden, 2002.

2001

J. Ahlberg, I. S. Pandžić, and L. You, “Evaluation of MPEG-4 Facial Animation Systems,” OZCHI Workshop on Talking Head Technology, Fremantle, Western Australia, November 2001.

J. Ahlberg, “Real-Time Facial Feature Tracking using an Active Model with Fast Image Warping,” International Workshop on Very Low Bitrate Video (VLBV), pp. 39–43, Athens, Greece, October 2001.

J. Ahlberg, “Face and Facial Feature Tracking using the Active Appearance Algorithm,” 2nd European Workshop on Advanced Video-Based Surveillance Systems (AVBS), pp. 83–93, Kingston upon Thames, London, UK, September 2001.

J. Ahlberg, “Using the Active Appearance Algorithm for Face and Facial Feature Tracking,” 2nd International Workshop on Recognition, Analysis and Tracking of Faces and Gestures in Realtime Systems (RATFFG-RTS) at ICCV, pp. 68–72, Vancouver, Canada, July 2001.
DOI: 10.1109/RATFG.2001.938912.

J. Ahlberg, “Facial Feature Tracking using an Active Appearance-driven Model,” International Conference on Augmented, Virtual Environments and 3D Imaging (ICAV3D), pp. 116–199, Mykonos, Greece, May 2001.

J. Ahlberg, “An Active Model for Facial Feature Tracking,” International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS), pp. 63–67, Tampere, Finland, May 2001.

J. Ahlberg, “Using the Active Appearance Algorithm for Face and Facial Feature Tracking,” Swedish Symposium on Image Analysis, pp. 1–4, Norrköping, Sweden, March 2001.

19xx

J. Ahlberg and H. Li, “Representing and Compressing MPEG-4 Facial Animation Parameters using Facial Action Basis Functions,” IEEE Transactions on Circuits and Systems for Video Technology, Vol. 9, No. 3, pp. 405–410, April 1999.
DOI: 10.1109/76.754768.

J. Ahlberg, “Facial Feature Extraction using Eigenspaces and Deformable Graphs,” International Workshop on Synthetic/Natural Hybrid Coding and 3-D Imaging (IWSNHC3DI), Santorini, Greece, Sept. 1999.

J. Ahlberg, “Facial Feature Extraction using Deformable Graphs and Statistical Pattern Matching,” Swedish Symposium on Image Analysis, pp. 89–92, Göteborg, Sweden, March 1999.

J. Ahlberg, Extraction and Coding of Face Model Parameters, Licentiate Thesis No. 747, Dept. of Electrical Engineering, Linköping University, Sweden, 1999.

J. Ahlberg, J. Ström and H. Li, “Extraction and Coding of Face-model Parameters,” International Workshop on Very Low Bitrate Video (VLBV), pp. 53–56, Linköping, Sweden, July 1997.

J. Ström, F. Davoine, J. Ahlberg, H. Li and R. Forchheimer, “Very Low Bit Rate Facial Texture Coding,” International Workshop on Synthetic/Natural Hybrid Coding and 3-D Imaging (IWSNHC3DI), pp. 237–240, Rhodes, Greece, September 1997.

H. Li, L. Klasen, J. Ahlberg, J. Ström, F. Davoine, A. Lundmark, and R. Forchheimer, “Understanding of Human Images,” Swedish Symposium on Image Analysis, Stockholm, Sweden, May 1997.

J. Ahlberg, Active Contours in Three Dimensions, M.Sc. Thesis, LiTH-ISY-EX-1708, Linköping University Electronic Press, 1996.

 

Patents

 

J. Ahlberg, Method and system for identifying an individual with increased body temperature, SE 540038. Filed 2014-12-05. Granted 2018-03-06.

E. Eineren, L. Toth, and J. Ahlberg, Systems and methods for predicting the outcome of a state of a subject, US 9922242. Filed 2013-11-26. Granted 2018-03-20.

N. Wadströmer, J. Ahlberg, B. Gustafsson, and A. Singh, Metod för videoövervakning av ett område med beteendeanalys och datorsystem för genomförande av metoden, SE 534706. Filed 2010-04-16. Granted 2011-11-22.

J. Ahlberg, H. Habberstad, L. Klasén, and F. Kullander, Metod för övervakning av ett geografiskt område, SE 528330. Filed 2004-11-11. Granted 2006-10-24.

J. Ahlberg and R. Forchheimer, Ansiktsanimering (Face animation), SE 519134. Filed 2001-03-14. Granted 2003-01-21.

 

Published Reports

 

Swedish Defence Resarch Agency (FOI)

 

J. Ahlberg, F. Johansson, R. Johansson, M. Jändel, A. Linderhed, P. Svensson, G. Tolt, Content-based image retrieval, FOI-R--3395--SE, December 2011.

J. Ahlberg, "Intelligent övervakning: Effektivare brottsbekämpning med integriteten i åtanke", in J. Hellström, M. Eriksson, and N. Granholm (editors) Strategisk utblick 2011, FOI-R--3208--SE, pp. 73-79, June 2011.

J. Ahlberg, "Intelligent Surveillance: Towards More Efficient Crime Prevention While Still Considering Aspects of Privacy", in J. Hellström, M. Eriksson, and N. Granholm (editors) Strategic Outlook 2011, FOI-R--3210--SE, pp. 73-79, June 2011.

J. Ahlberg, E. Ringaby, P.-E. Forssén, Hyperspectral data sets and preliminary data analysis, Technical report FOI-R--3115--SE, December 2010.

J. Ahlberg, T. Skauli, DUCAS Pre-Trials, Technical report FOI-R--3042--SE, September 2010.

J. Ahlberg, M. Lundberg, J. Rydell, Analys av multi/hyperspektrala bilder – framsteg och resultat, User report FOI-R--2895--SE, December 2009.

T. Svensson, J. Ahlberg, L. Allard, S. Björklund, L. Carlsson, S. Cronström, J. Fagerström, N. Karlsson, R. Lindell, I. Renhorn, and N. Wadströmer, Multi- and Hyperspectral Reconnaissance, User report FOI-R--2642--SE, December 2008.

J. Ahlberg, Estimation of atmosphere and object properties in hyperspectral longwave infrared data, Scientific report FOI-R--2095--SE, October 2006.

J. Ahlberg, A Matlab Toolbox for Analysis of Multi/Hyperspectral Imagery, Technical report FOI-R--1962--SE, March 2006.

P. Grahn et al., SEMARK, multipla sensorer för markspaning, Slutrapport etapp 1, User report FOI-R--2163--SE, 2006.

J. Ahlberg, I. Renhorn, T. Winzell, T. Svensson, G. Carlsson, Multispectral IR and E/O sensors 2005, User report FOI-R--1815--SE, December 2005.

J. Ahlberg, Processing of spectral images recorded under THALES JP8.10 trials – Results from Sweden, WEAO CEPA Document Th_T_WP4_K_07, January 2005.

H. Sidenbladh, J. Ahlberg, and L. Klasén, New Systems for Urban Surveillance, User report FOI-R--1668--SE, June 2005.

J. Ahlberg, Processing of spectral images recorded under THALES JP8.10 trials – Hypernational report, WEAO CEPA Document Th_T_WP4_K_11, January 2005.

J. Ahlberg and I. Renhorn, Multi- and Hyperspectral Target and Anomaly Detection, Scientific report FOI-R--1526--SE, December 2004.

T. Chevalier, T. Winzell, J. Ahlberg, T. Svensson, H. Larsson, I. Renhorn, O. Steinvall and D. Letalick, Optronic systems, User report FOI-R-1422--SE, December 2004.

L. Svensson et al., Preparatory study: Sensors for urban terrain, Base data report FOI-R--1420--SE, December 2004.

L. Klasén et al., Optroniska system för ökad spaningsförmåga, User report FOI-R--1104--SE, 2003.

E.  Jungert, J. Ahlberg, T. Carlsson, J. Fransson, L. Klasén, K. Silvervarg, C. Grönwall, P. Andersson, M. Folkesson, T. Horney, F. Lantz, and M. Ulvklo, From Sensor to Decision – Towards improved situation awareness in a network centric defence, User report FOI-R--1041--SE, December 2003.

E. Jungert et al., SigmaQL – Ett beslutsstöd för måligenkänning i en multisensormiljö, Technical report FOI-R--0692--SE, December 2002.

 

Linköping University

 

J. Ahlberg, C. Grönwall, T. Horney, E. Jungert, L. Klasén, and M. Ulvklo, Ground target recognition in a query-based multi-sensor information system, LiTH-ISY-R-2748, 2006. FOI-S--2355--SE.

J. Ahlberg, Fast Image Warping for Active Models, LiTH-ISY-R-2355, May 2001.

J. Ahlberg, WinCandide 1.3 User's Manual, LiTH-ISY-R-2344, April 2001.

J. Ahlberg, Candide-3 – an updated parameterised face, LiTH-ISY-R-2326, January 2001.

J. Ahlberg, An Experiment on 3D Face Model Adaptation using the Active Appearance Algorithm, LiTH-ISY-R-2325, January 2001.

J. Ahlberg, K. Nordberg, and J. Wiklund, 3-D active contours attracted to planar structure, LiTH-ISY-R-2300, October 2000.

J. Ahlber, Kodning av ansiktstextur med oberoende komponenter, LiTH-ISY-R-2297, October 2000.

J. Ahlberg, A System for Face Localization and Facial Feature Extraction, LiTH-ISY-R-2172, July 1999.

J. Ahlberg and H. Li, Representing and Compressing MPEG-4 Facial Animation Parameters using Facial Action basis Functions, LiTH-ISY-R-2010, 1998.

J. Ström, F. Davoine, J. Ahlberg, H. Li and R. Forchheimer, Very Low Bit Rate Facial Texture Coding, LiTH-ISY-R-1951, June 1998.

 

Moving Pictures Experts Group (MPEG)

 

J. Ahlberg, Results of Core Experiment F2, MPEG98/M3423.

Y. Fisher, H. Tao, J. Ahlberg, R. Pockaj, H. Chen, Revised Description of FIT Node, MPEG98/M3318.

J. Ahlberg, G. Abrantes, R. Pockaj, H. Tao, T. Capin, H. Chen, Core Experiments on Face Animation, MPEG98/N2063.

T.K. Capin, J. Esmerado, D. Tolani, J. Ahlberg, H. Chen, FBA Core Experiments, MPEG97/N1889.

J. Ahlberg, H. Li, R. Forchheimer, FAP-coding using Facial Action Basis Functions, MPEG97/M2836.

J. Ahlberg, H. Li, Results of FAP Coding Using DCT, MPEG97/M2629.

J. Ström, J. Ahlberg, H. Li, R. Forchheimer, Efficient Coding of Facial Texture, MPEG97/M1782.

 

Supervised M.Sc theses

 

Termisk Systemteknik

 

V. Smedby, Tracking of objects in thermal image sequences, in progress.

M. García Romero, Demonstration and evaluation platform for tracking in thermal video, 2014.

A. Berg, Classification of leakage detections acquired by airborne thermography of district heating networks, Linköping University Electronic Press, 2013.

M. Stigson, Object Tracking using Tracking-Learning-Detection in Thermal Infrared Video, Linköping University Electronic Press, 2013.

K. Höglund, Non-destructive Testing Using Thermographic Image Processing, Linköping University Electronic Press, 2013.

R. Söderström, An early fire detection system through registration and analysis of waste station IR-images, Linköping University Electronic Press, 2011.

 

Swedish Defence Resarch Agency (FOI)

 

E. Emilsson and H. Holm-Ovrén, Missile Approach Warning using Multi-spectral Imagery, Linköping University Electronic Press, 2010.

D. Andersson, Diversifying Demining – An Experimental Crowdsourcing Methods for Optical Mine Detection, Technical report FOI-R--2619--SE (Linköping University Electronic Press), 2008.

O. Brattberg, Multispectral target recognition, Chalmers University of Technology, 2006.

C. Freyhult, Visualisation and detection using 3-D laser radar and hyperspectral sensors, Technical report FOI-R--2125--SE (Linköping University Electronic Press), 2006.

K. Chan, Registration of 3-D laser radar data and hyperspectral imagery for target detection, Technical report FOI-R--2101--SE (Lund Institute of Technology), 2006.

J. Olsson and H. Nilsson, Bildanalys för navigering i autonoma sensorplattformar, MEE05:21, Blekinge Institute of Technology, 2005.

J. Nilsson, Visual Landmark Selection and Recognition for Automous Unmanned Aerial Vehicle Navigation – An Image Analysis Framework based on Local Scale-Invariant Features, Scientific report FOI-R--1658--SE (Royal Institute of Technology), 2005.

F. Bennet and S. Fenelius, Implementation of SceneServer – a 3D software assisting developers of computer vision algorithms, Technical report FOI-R--0831--SE (Linköping University Electronic Press), 2003.

 

Linköping University

 

C. Ruiz Sancho, Pedestrian detection using a boosted cascade of histograms of oriented gradients, UPC Commons, 2014.

B. Bas and F. Riera, Facial Image-Based Gender and Age Estimation, UPC Commons, 2013.

M. Strand, A Software Framework for Facial Modelling and Tracking, LiTH-ISY-EX--08/4098--SE, Linköping University Electronic Press, 2009.

N. Ingemars, A feature-based face tracker using extended Kalman filtering, LiTH-ISY-EX-07/4015--SE, Linköping University Electronic Press, 2007.

G. Fanelli, Facial Features Tracking using Active Appearance Models, LiTH-ISY-EX--06/3965--SE, Linköping University Electronic Press, 2006.

H. Ellner, Facial animation parameter extraction using high-dimensional manifolds, LiTH-ISY-EX--06/3774--SE, Linköping University Electronic Press, 2006.

M. Jottrand, Support Vector Machines for Classification applied to Facial Expression Analysis and Remote Sensing, LITH-ISY-EX--05/3717--SE, Linköping University Electronic Press, 2005.

T. Westerlund, Fast Face Finding, LiTH-ISY-EX-3527-2004, Linköping University Electronic Press, 2004.

A. Axelsson and E. Björhäll, Real Time Speech Driven Face Animation, LiTH-ISY-EX-3389, Linköping University Electronic Press, 2003.

P. Rudol and M. Wzorek, Editing, Streaming and Playing of MPEG-4 Facial Animations, LiTH-ISY-EX-3352-2003, Linköping University Electronic Press, 2003.

J. Lundberg, MPEG-4 Facial Feature Point Editor, LiTH-ISY-EX-3269-2002, Linköping University Electronic Press, 2002.

O. Larsson and F. Montelius, Streaming Video in Wireless Networks, LiTH-ISY-EX-3227, Linköping University Electronic Press, 2001.

A. Lundqvist, Speech coding with quantization of spectral information for a telephone answering device, LiTH-ISY-EX-3012, Linköping University, 2001.

J. Sun, Mobile Face Animation, LiTH-ISY-EX-3079, Linköping University, 2001.

Q. Hong, Evaluation of MPEG-4 FAP Bitstreams in terms of Bitrate and Error Resilience, LiTH-ISY-EX-1970, Linköping University, 1998.

A. Nordgren and J. Scott, Model-Based Facial Feature Extraction, LiTH-ISY-EX-1926, Linköping University, 1998.

G. Godart, Localization and Segmentation of Annotating Object for Region-based Video Coding, LiTH-ISY-EX-1848, Linköping University, 1997.