Correction for the dislocation of curved surfaces caused by the PSF in 2D and 3D CT images.
Conventional edge-detection methods suffer from the dislocation of curved surfaces due to the PSF. We propose a new method that uses the isophote curvature to circumvent this. It is accurate for objects with locally constant curvature, even for small objects (like blood vessels) and in the presence of noise.
Bouma
Henri
H
Department of Biomedical Engineering, Technische Universiteit Eindhoven, Postbus 513, 5600 MB Eindhoven, The Netherlands. h.bouma2@tue.nl
Vilanova
Anna
A
van Vliet
Lucas J
LJ
Gerritsen
Frans A
FA
D000465:Algorithms; D016477:Artifacts; D001185:Artificial Intelligence; D021621:Imaging, Three-Dimensional / Q000379:methods*; D016247:Information Storage and Retrieval / Q000379:methods; D010363:Pattern Recognition, Automated / Q000379:methods*; D011856:Radiographic Image Enhancement / Q000379:methods*; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D013382:Subtraction Technique; D014057:Tomography, X-Ray Computed / Q000379:methods*