Title :
A multiresolution image reconstruction method in X-ray microCT
Author :
Costin, Marius ; Lazaro-Ponthus, Delphine ; Legoupil, Samuel ; Duvauchelle, Philippe ; Kaftandjian, Valérie
Author_Institution :
Imaging & Dynamics Lab., CEA, Gif-sur-Yvette, France
fDate :
Oct. 24 2009-Nov. 1 2009
Abstract :
We propose a method for multiresolution image reconstruction in X-ray micro computed tomography (microCT). It can have a variety of applications, from material characterization to small animal imaging studies. The main idea is to recover an overall image of the sample with a coarse resolution, and with a fine resolution for a region-of-interest (ROI). In a zoo-min CT type setup, two sets of data are used, taken at different magnifications ratios. They are combined with the help of an analytical relation and the reconstruction is an extension of the filtered back-projection (FBP) algorithm. We present results with simulated data, some performance aspects and a simple noise analysis.
Keywords :
computerised tomography; image reconstruction; medical image processing; X-ray micro computed tomography; X-ray microCT; coarse image resolution; filtered back projection; magnification ratio; multiresolution image reconstruction; Animals; Computed tomography; Image reconstruction; Image resolution; Nuclear and plasma sciences; Optical imaging; Reconstruction algorithms; Spatial resolution; Wavelet transforms; X-ray imaging; X-ray tomography; image reconstruction; microCT; multiresolution;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-3961-4
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2009.5401919