Three-Dimensional Reconstruction of Dilute Bubbly Flow Field with Light-Field Images Based on Deep Learning Method

2021 ◽  
pp. 1-1
Author(s):  
Hongyi Wang ◽  
Hongyu Wang ◽  
Xinjun Zhu ◽  
Limei Song ◽  
Qinghua Guo ◽  
...  
2019 ◽  
Vol 39 (10) ◽  
pp. 1011002
Author(s):  
宋祥磊 Song Xianglei ◽  
李舒 Li Shu ◽  
顾梦涛 Gu Mengtao ◽  
张彪 Zhang Biao ◽  
许传龙 Xu Chuanlong

Author(s):  
Wentao Zhang ◽  
Shengqian Chang ◽  
Xiao Tao ◽  
Chang Wang ◽  
Chenning Tao ◽  
...  

2021 ◽  
Author(s):  
Yuriy Anisimov ◽  
Gerd Reis ◽  
Didier Stricker

The ability to create an accurate three-dimensional reconstruction of a captured scene draws attention to the prin- ciples of light fields. This paper presents an approach for light field camera calibration and rectification, based on pairwise pattern-based parameters extraction. It is followed by a correspondence-based algorithm for camera parameters refinement from arbitrary scenes using the triangulation filter and nonlinear optimization. The effec- tiveness of our approach is validated on both real and synthetic data.


2021 ◽  
Vol 145 ◽  
pp. 106663
Author(s):  
Lei Xin ◽  
Xin Liu ◽  
Zhongming Yang ◽  
Xingyu Zhang ◽  
Zhishan Gao ◽  
...  

Author(s):  
J. Frank ◽  
B. F. McEwen ◽  
M. Radermacher ◽  
C. L. Rieder

The tomographic reconstruction from multiple projections of cellular components, within a thick section, offers a way of visualizing and quantifying their three-dimensional (3D) structure. However, asymmetric objects require as many views from the widest tilt range as possible; otherwise the reconstruction may be uninterpretable. Even if not for geometric obstructions, the increasing pathway of electrons, as the tilt angle is increased, poses the ultimate upper limitation to the projection range. With the maximum tilt angle being fixed, the only way to improve the faithfulness of the reconstruction is by changing the mode of the tilting from single-axis to conical; a point within the object projected with a tilt angle of 60° and a full 360° azimuthal range is then reconstructed as a slightly elliptic (axis ratio 1.2 : 1) sphere.


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