Title :
VOIR: a volumetric image reconstruction algorithm for cone-beam tomography: performance evaluation
Author :
Dusaussoy, Nicolas J.
Author_Institution :
ARACOR, Sunnyvale, CA, USA
Abstract :
A novel VOlumetric Image Reconstruction algorithm, named VOIR, for cone-beam tomography is presented and an evaluation of its image processing performance is reported. The algorithm is based on Grangeat´s (1991) formula relating cone-beam projections to the derivative of the Radon transform and the projection slice theorem. VOIR is a O(N3 log N) reconstruction algorithm which has great computational advantages over Grangeat´s and Feldkamp´s algorithms for large values of the side dimension of the image, N. Its image processing performance is characterized by an analysis of the edge response from simulated and experimental data and compared to that of Grangeat´s and Feldkamp´s algorithms
Keywords :
Radon transforms; image reconstruction; tomography; Radon transform; VOIR; cone-beam projections; cone-beam tomography; edge response; image processing performance; performance evaluation; projection slice theorem; reconstruction algorithm; volumetric image reconstruction algorithm; Algorithm design and analysis; Fourier transforms; Image analysis; Image processing; Image reconstruction; Integral equations; Lakes; Performance analysis; Reconstruction algorithms; Tomography;
Conference_Titel :
Image Processing, 1994. Proceedings. ICIP-94., IEEE International Conference
Conference_Location :
Austin, TX
Print_ISBN :
0-8186-6952-7
DOI :
10.1109/ICIP.1994.413550
