Title :
Implementation and validation of the advanced variance estimation technique using CT projection data
Author :
Yangyang Yao ; Yannan Jin ; Fitzgerald, Paul ; Edic, Pete ; Zhye Yin ; De Man, Bruno
Author_Institution :
CT & X-Ray Lab., GE Global Res., Shanghai, China
fDate :
April 29 2014-May 2 2014
Abstract :
In this paper, an improved method of constructing FBP2D (3D) based variance map is introduced and implemented successfully. Accordingly, a quadratic version of distance driven back-projector (DD) compatible with variance reconstruction is developed to exploit fully the features of DD. As a result, the calculated variance is validated and shows an excellent match with ground truth.
Keywords :
computerised tomography; image reconstruction; medical image processing; CT projection data; FBP2D based variance map; advanced variance estimation technique; distance driven back-projector; ground truth; variance reconstruction; Computed tomography; Detectors; Equations; Estimation; Image reconstruction; Kernel; Noise; distance driven back projector; filter back projection method; noise estimation; variance map;
Conference_Titel :
Biomedical Imaging (ISBI), 2014 IEEE 11th International Symposium on
Conference_Location :
Beijing
DOI :
10.1109/ISBI.2014.6868067
