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http://dx.doi.org/10.7776/ASK.2009.28.2.141

The Algorithm Improved the Speed for the 3-Dimensional CT Video Composition  

Jeong, Chan-Woong (경희대학교 전자공학과)
Park, Jin-Woo (경희대학교 전자공학과)
Jun, Kyu-Suk (경희대학교 전자공학과)
Publication Information
The Journal of the Acoustical Society of Korea / v.28, no.2, 2009 , pp. 141-147 More about this Journal
Abstract
This paper presents a new fast algorithm, rotation-based method (RBM), for the reconstruction of 3 dimensional image for cone beam computerized tomography (CB CT) system. The system used cone beam has less exposure time of radioactivity than fan beam. The Three-Pass Shear Matrices (TPSM) is applied, that has less transcendental functions than the one-pass shear method to decrease a time of calculations in the computer. To evaluate the quality of the 3-D images and the time for the reconstruction of the 3-D images, another 3-D images were reconstructed by the radon transform under the same condition. For the quality of the 3-D images, the images by radon transform was shown little good quality than REM. But for the time for the reconstruction of the 3-D images REM algorithm was 35 times faster than radon transform. This algorithm offered $4{\sim}5$ frames a second. It meant that it will be possible to reconstruct the 3-D dynamic images in real time.
Keywords
Cone beam CT; Radon transform; Three-pass shear method; Rotation-based method; 3-dimensional Dynamic images reconstruction;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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