title: BSIRT: a block-iterative SIRT parallel algorithm using curvilinear projection model.
abstract: Large-field high-resolution electron tomography enables visualizing detailed mechanisms under global structure. As field enlarges, the distortions of reconstruction and processing time become more critical. Using the curvilinear projection model can improve the quality of large-field ET reconstruction, but its computational complexity further exacerbates the processing time. Moreover, there is no parallel strategy on GPU for iterative reconstruction method with curvilinear projection. Here we propose a new Block-iterative SIRT parallel algorithm with the curvilinear projection model (BSIRT) for large-field ET reconstruction, to improve the quality of reconstruction and accelerate the reconstruction process. We also develop some key techniques, including block-iterative method with the curvilinear projection, a scope-based data decomposition method and a page-based data transfer scheme to implement the parallelization of BSIRT on GPU platform. Experimental results show that BSIRT can improve the reconstruction quality as well as the speed of the reconstruction process.
authors: Fa
authors: F
authors: Zhang
authors: Jingrong
authors: J
authors: Zhang
authors: Albert
authors: A
authors: Lawrence
authors: Fei
authors: F
authors: Ren
authors: Xuan
authors: X
authors: Wang
authors: Zhiyong
authors: Z
authors: Liu
authors: Xiaohua
authors: X
authors: Wan
mesh_terms: D000465:Algorithms; D003198:Computer Simulation; D055032:Electron Microscope Tomography / Q000379:methods*; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D016014:Linear Models; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity