Laser & Optoelectronics Progress, Volume. 57, Issue 12, 121001(2020)
Parallel Accelerated Reconstruction Method for Dual-Energy Computed Tomography Based on Graphics Processing Unit
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Fig. 3. Flow chart and parallel mode of parallel accelerated dual-energy CT reconstruction based on GPU
Fig. 4. Reconstruction images of dual-energy CT. (a) High-energy linear attenuation coefficient image; (b) low-energy linear attenuation coefficient image; (c) effective atomic number image; (d) electron density image
Table 1. Spending time of back-projection step and total reconstruction time without sampling registrationms
View tableTable 1. Spending time of back-projection step and total reconstruction time without sampling registrationms
Reconstruction image Average back-projection time /ms Average reconstruction time /ms Ratio of back-projection time to total reconstruction time /% 1 8.6519 10.7759 80.289 2 8.9416 11.1696 80.053 4 9.2883 12.9669 71.631 4+2 9.2883 13.3755 69.443
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Pingyu Zhang. Parallel Accelerated Reconstruction Method for Dual-Energy Computed Tomography Based on Graphics Processing Unit[J]. Laser & Optoelectronics Progress, 2020, 57(12): 121001
Paper Information
Category: Image Processing
Received: Jul. 19, 2019
Accepted: Oct. 29, 2019
Published Online: Jun. 3, 2020
The Author Email: Zhang Pingyu (zhangpy@fiscan.cn)
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