Computer virtual reconstruction of a three dimensional scene in integral imaging

Author(s):  
Min Guo ◽  
Yu-juan Si ◽  
Shi-gang Wang ◽  
Yuan-zhi Lyu ◽  
Bo-wen Jia ◽  
...  
Author(s):  
Ying Yuan ◽  
Xiaorui Wang ◽  
Yang Yang ◽  
Hang Yuan ◽  
Chao Zhang ◽  
...  

Abstract The full-chain system performance characterization is very important for the optimization design of an integral imaging three-dimensional (3D) display system. In this paper, the acquisition and display processes of 3D scene will be treated as a complete light field information transmission process. The full-chain performance characterization model of an integral imaging 3D display system is established, which uses the 3D voxel, the image depth, and the field of view of the reconstructed images as the 3D display quality evaluation indicators. Unlike most of the previous research results using the ideal integral imaging model, the proposed full-chain performance characterization model considering the diffraction effect and optical aberration of the microlens array, the sampling effect of the detector, 3D image data scaling, and the human visual system, can accurately describe the actual 3D light field transmission and convergence characteristics. The relationships between key parameters of an integral imaging 3D display system and the 3D display quality evaluation indicators are analyzed and discussed by the simulation experiment. The results will be helpful for the optimization design of a high-quality integral imaging 3D display system.


2013 ◽  
Vol 52 (4) ◽  
pp. 546 ◽  
Author(s):  
Xiao Xiao ◽  
Bahram Javidi ◽  
Manuel Martinez-Corral ◽  
Adrian Stern

2004 ◽  
Vol 29 (23) ◽  
pp. 2734 ◽  
Author(s):  
Jae-Hyeung Park ◽  
Hak-Rin Kim ◽  
Yunhee Kim ◽  
Joohwan Kim ◽  
Jisoo Hong ◽  
...  

Author(s):  
Mariateresa Galizia ◽  
Alessandro Lo Faro ◽  
Cettina Santagati

In this paper we propose a multidisciplinary approach concerning the tower of Mongialino in Mineo (Sicily), which is a unique case in Sicily of a cylindrical tower with an inner cylindrical nucleus. The vestiges of the dungeon rise on a rock promontory that dominates the valley of Margi, a site that has great landscape and territorial value. The building is affected by important collapses and lesions, and urgently requires a safeguard intervention that requires a deep knowledge and understanding of the construction. The first step of this process is a suitable documentation and representation of the cylindrical shape and its towering position. The peculiarity of the object requires the integrated use of current technologies of surveying able to provide a metrically-accurate three-dimensional model. The second step is the critic reading of the technological, typological and material elements that constitutes the constructive apparatus of the building (masonry, ribs, ring-like vault), and the geometric analysis addressed at the virtual reconstruction of the original shape.


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