2019/04/17 by Koen Ruymbeek, Ruymbeek, Koen, Wim Vanroose +1
Computer Science · Medicine · #Advanced MRI Techniques and Applications #Computer Graphics and Visualization Techniques #Dynamical Systems (math.DS) #FOS: Electrical engineering #FOS: Mathematics #Image and Video Processing (eess.IV) #Medical Imaging Techniques and Applications #Numerical Analysis (math.NA) #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.1905.00723
openalex publication_date 2019/04/17 · openalex created_date 2022/07/29 · openalex updated_date 2026/07/28
Computed Tomography is a powerful imaging technique that allows\nnon-destructive visualization of the interior of physical objects in different\nscientific areas. In traditional reconstruction techniques the object of\ninterest is mostly considered to be static, which gives artefacts if the object\nis moving during the data acquisition. In this paper we present a method that,\ngiven only scan results of multiple successive scans, can estimate the motion\nand correct the CT-images for this motion assuming that the motion field is\nsmooth over the complete domain using optical flow. The proposed method is\nvalidated on simulated scan data. The main contribution is that we show we can\nuse the optical flow technique from imaging to correct CT-scan images for\nmotion.\n