Victoria AGM meeting

Past

Light refreshments will be served. Guest Speaker: Prof. Ingela Nyström, University of Uppsala, Sweden Title: Interactive 3D Image Segmentation and Visualisation - for Cranio-Maxillofacial Surgery Planning and Orthopedic Applications Abstract: In this talk, I will present an efficient interactive tool for segmenting individual bones and bone fragments in 3D computed tomography (CT) images. The tool BoneSplit, which is primarily intended for virtual cranio-maxillofacial (CMF) surgery planning, combines direct volume rendering with interactive 3D texture painting to enable quick identification and marking of bone structures. The user can paint markers (seeds) directly on the rendered bone surfaces as well as on individual CT slices. Separation of the marked bones is then achieved through the random walks algorithm, which is applied on a graph constructed from the thresholded bones. The segmentation runs on the GPU and can achieve close to real-time update rates for volumes as large as 512x512x512 voxels. The user can perform segmentation editing to correct the result. An evaluation reports segmentation results comparable with manual segmentations, but obtained within a few minutes. The talk will also present how the BoneSplit fits into our a haptics-assisted surgery-planning system, which is used in clinical research and ready for entrepreneurship. Bio: Professor Ingela Nyström received the MSc degree in applied computer science and mathematics, and the PhD degree in computerized image analysis from Uppsala University, Sweden, in the 1990ies. She is the Head of Division of Visual Information and Interaction (Vi2) at the Dept. of Information Technology, UU, and Director of the Centre for Image Analysis. Her research interest is interactive segmentation, visualization, digital geometry, and quantitative shape analysis of volume images with their medical applications. During 2002-2006, she was the President of the Swedish Society for Automated Image Analysis (SSBA). Since 2008, she is member of the Executive Committee and was the President during 2014-2016 of the International Association of Pattern Recognition (IAPR). She is Vice-Chair of the Swedish Council for Research Infrastructure. For more information, please consult https://www.cb.uu.se/~ingela/CV/