NOTE: I am no longer at Uppsala University, so this webpage is not maintained anymore. To contact me or find out about my recent activities, see links to my private webpage and CV.

Research

Publications

Google Scholar profile

PhD thesis

Defended on March 13, 2020, with Prof. Alexandru C. Telea (Utrecht University) as opponent. Supervisors: Ingela Nyström, Filip Malmberg, and Ingrid Carlbom (Uppsala University).

Pre-prints

• Banerjee, S., Nysjö, F., Toumpanakis, D., Dhara, A.K., Wikström, J., and Strand, R., “AI-based Solution for Improving Neuroradiology Workflow for Cerebrovascular Structure Monitoring”, submitted to journal (pre-print available at Research Square), (2022) (PDF)

Journal papers (peer-reviewed)

• Pielawski, N., et al., “TissUUmaps 3: Improvements in Interactive Visualization, Exploration and Quality Assessment of Large-Scale Spatial Omics Data”, Heliyon (Cell Press), (2023) (PDF)
• Moafi, R., Nysjö, F., Kämpe, J., Riben, C., and Thor, A., “Haptic-Assisted Surgical Planning (HASP) In a Case of Bilateral Mandible Fracture”, International Medical Case Report Journal, 2022:15 (2022) (PDF)
• Nilsson, J., Nysjö, F., Nyström, I., Kämpe, J., and Thor, A., “Evaluation of In-House, Haptic Assisted Surgical Planning for Virtual Reduction of Complex Mandibular Fractures,” published online in International Journal of Computer Assisted Radiology and Surgery (IJCARS) (2021) (PDF)
• Nysjö, F., “Clustered Grid Cell Data Structure for Isosurface Rendering”, Journal of WSCG, Vol.28, No.1-2, (2020). Also presented at WSCG 2020 (virtual conference), Pilsen, Czech Republic (2020). (PDF) (source code)
• Nysjö, F., Malmberg, F., and Nyström, I., “RayCaching: Amortised Isosurface Rendering for Virtual Reality”, Computer Graphics Forum (published online 2019), (2019). Also presented at Eurographics & Eurovis (EGEV) 2020 (virtual conference), Norrköping, Sweden (2020). (PDF) (source code)
• Nysjö, F., Olsson, P., Malmberg, F., Carlbom, I.B., and Nyström, I., “Using Anti-Aliased Signed Distance Fields for Generating Surgical Guides and Plates from CT Images”, Journal of WSCG, Vol.25, No.1-2, (2017). Also presented at WSCG 2017, Pilsen, Czech Republic (2017). (PDF)
• Olsson, P., Nysjö, F., Carlbom, I.B., and Johansson, S., “Comparison of Walking and Traveling-Wave Piezoelectric Motors as Actuators in Kinesthetic Haptic Devices,” IEEE Transactions on Haptics, 9, (2016) (PDF)
• Svensson, L., Svensson, S., Nyström, I., Nysjö, F., Nysjö, J. et al., “ProViz: a tool for explorative 3-D visualization and template matching in electron tomograms”, Journal of Computer Methods in Biomechanics and Biomedical Engineering: Imaging and Visualization 0 (2016) (PDF)
• Olsson, P., Nysjö, F., Rodriguez-Lorenzo, A., Thor, A., Hirsch, J.M., and Carlbom, I.B., “Novel Virtual Planning of Bone, Soft-tissue, and Vessels in Fibula Osteocutaneous Free Flaps with the Haptics-Assisted Surgery Planning (HASP) System”, Plastic and Reconstructive Surgery Global Open (PRSGO) (2015) (PDF)
• Olsson, P., Nysjö, F., Hirsch, J.M., and Carlbom, I.B., “A Haptics-Assisted Cranio-Maxillofacial Surgery Planning System for Restoring Skeletal Anatomy in Complex Trauma Cases,” International Journal of Computer Assisted Radiology and Surgery (IJCARS) (2013) (PDF)

Conference papers (peer-reviewed)

• Blache, L., Nysjö, F., Malmberg, F., and Nyström, I., “SoftCut: A Virtual Planning Tool for Soft Tissue Resection on CT Images”, MIUA 2018, Southampton, UK (2018)
• Olsson, P., Nysjö, F., Singh, N., Thor, A., and Carlbom, I.B., “Visuohaptic Bone Saw Simulator: Combining Vibrotactile and Kinesthetic Feedback”, ACM SIGGRAPH Asia 2015, Kobe, Japan (2015) (PDF)
• Nysjö, F., Olsson, P., Hirsch, J.M., and Carlbom, I.B., “Custom Mandibular Implant Design with Deformable Models and Haptics”, Proc. Computer Assisted Radiology and Surgery (CARS) (abstract), Fukuoka, Japan (2014) (PDF)
• Olsson, P., Nysjö, F., Aneer, B., Seipel, S., and Carlbom, I.B., “SplineGrip - An Eight Degrees-of-Freedom Flexible Haptic Sculpting Tool,” ACM SIGGRAPH 2013 (abstract), Anaheim, USA (2013) (PDF)
• Olsson, P., Nysjö, F., Hirsch, J.M., and Carlbom, I.B., “A Haptics-Assisted Cranio-Maxillofacial Surgery Planning System for Restoring Skeletal Anatomy in Complex Trauma Cases,” Proc. Computer Assisted Radiology and Surgery (CARS), Heidelberg, Germany (2013)
• Olsson, P., Nysjö, F., Hirsch, J.M., and Carlbom, I.B., “Snap-to-Fit, a Haptic 6 DOF Alignment Tool for Virtual Assembly,” IEEE World Haptics Conference, Daejeon, South Korea (2013) (PDF)
• Olsson, P., Johansson, S., Nysjö, F., and Carlbom, I.B., “Rendering Stiffness with a Prototype Haptic Glove Actuated by an Integrated Piezoelectric Motor,” Euro Haptics Conference, Tampere, Finland (2012) (PDF)
• Olsson, P., Nysjö, F., Seipel, S., and Carlbom, I.B., “Physically Co-Located Haptic Interaction with 3D Displays,” Haptics Symposium, Vancouver, Canada (2012) (PDF)

Conference papers (non peer-reviewed)

• Nysjö, F., Malmberg, F., Nyström, I., “RayCaching: Point-Based Isosurface Rendering for Large Volume Datasets,” presented at SSBA Symposium 2018, Stockholm (2018)
• Nysjö, F., Olsson, P., Malmberg, F., Carlbom, I.B., Nyström, I., “Signed Distance Fields for Modeling Surgical Guides and Plates,” presented at SSBA Symposium 2016, Uppsala (2016)

Book chapters

• Nyström, I., Olsson, P., Nysjö, J., Nysjö, F., Malmberg, F. et al., “Virtual Cranio-Maxillofacial Surgery Planning with Stereo Graphics and Haptics,” in Ritacco, Lucas E., Milano, Federico E., Chao, Edmund (red.) Computer-Assisted Musculoskeletal Surgery, Springer International Publishing. 29-42, (2016)

Other publications

• Nysjö, F., “Rendering Software for Multiple Projectors,” MSc thesis, Department of Information Technology, Uppsala University (2011) (PDF)

Teaching

Courses (mostly undergraduate level)

• Computer Graphics (1TD388/1MD150):
  Spring 2016-2022 (Course description and syllabus) (GitHub page)
• Scientific Visualization (1TD389/1MD140):
  Fall 2016-2021 (Course description and syllabus) (GitHub page)
• Scientific Visualization (graduate course):
  Fall 2015, 2016, 2018, 2020 (Course webpage from 2018)
• Medical Informatics (1MD030):
  Fall 2020 (Course description and syllabus)
• Imperative and Object-Oriented Programming (1DL221):
  Fall 2020
• Advanced Interaction Design (1MD001):
  Spring 2016

Master thesis supervision

• Thesis projects where I have been supervisor or reviewer.

Other activities

• My Bitbucket and GitHub pages.
• My computer graphics and graphics programming related work (including some personal projects): https://fredriknysjo.bitbucket.io

CV

My full CV can be found here.

Contact

Fredrik Nysjö Department of Information Technology, Division of Vi3, Image Analysis Box 337 751 05 Uppsala

Office room: 104136 (Ångström, House 10) E-mail: fredrik.nysjo@it.uu.se