title: Accuracy of object depiction and opacity transfer function optimization in CT volume-rendered images.
abstract: Volume rendering is a visualization technique that has important applications in diagnostic radiology and radiotherapy. A methodology is presented for (a) evaluation of the quantitative accuracy of representation of known objects in volume-rendered scenes and for (b) optimization of the opacity transfer function to achieve the most accurate representation of a particular structure. Results using this methodology are shown for structures representing each of the major tissue interfaces and are discussed.
authors.affiliation: Department of Radiation Oncology, University of Chicago Hospitals, IL 60637, USA.
authors.forename: A B
authors.initials: AB
authors.lastname: Jani
authors.forename: C A
authors.initials: CA
authors.lastname: Pelizzari
authors.forename: G T
authors.initials: GT
authors.lastname: Chen
authors.forename: R P
authors.initials: RP
authors.lastname: Grzeszczuk
mesh_terms: D000465:Algorithms; D005145:Face / Q000000981:diagnostic imaging; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D007601:Jugular Veins / Q000000981:diagnostic imaging; D008334:Mandible / Q000000981:diagnostic imaging; D019047:Phantoms, Imaging; D011856:Radiographic Image Enhancement / Q000379:methods; D011859:Radiography; D011878:Radiotherapy; D012867:Skin / Q000000981:diagnostic imaging; D012984:Software; D014057:Tomography, X-Ray Computed / Q000379:methods*