Reconstruction of digital radiographs by texture mapping, ray casting and splatting

Author

Alakuijala, J. ; Jaske, U.M. ; Sallinen, S. ; Hehminen, H. ; Laitinen, J.

Author_Institution

Dept. of Res., Varian-Dosetek Oy, Espoo, Finland

Volume

2

fYear

1996

fDate

31 Oct-3 Nov 1996

Firstpage

643

Abstract

Presents methods for reconstructing digital radiographs from a stack of CT slices. The authors´ findings indicate that alpha blended texture mapping is the fastest way to calculate low to medium quality radiographs on hardware accelerated computers. They present a novel algorithm that is designed for high quality radiograph calculation: antialiased splatting with postprocessing. This new algorithm can be used to calculate tri-linearly interpolated high resolution radiographs quickly on standard PCs

Keywords

computerised tomography; diagnostic radiography; image reconstruction; image texture; medical image processing; microcomputer applications; CT slices stack; algorithm; alpha blended texture mapping; antialiased splatting; digital radiographs reconstruction; hardware accelerated computers; high quality radiograph calculation; medical diagnostic imaging; postprocessing; ray casting; standard PCs; texture mapping; Casting; Computed tomography; Data visualization; Graphics; Hardware; Image reconstruction; Interpolation; Radiography; Rendering (computer graphics); Sampling methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE

Conference_Location

Amsterdam

Print_ISBN

0-7803-3811-1

Type

conf

DOI

10.1109/IEMBS.1996.651907

Filename

651907