A large-scale glasses-free 3D display system using multiple projectors

2014 ◽  
Author(s):  
Shao Tang ◽  
Lei Zhang ◽  
Yongbing Zhang
Keyword(s):  
Large Scale ◽  
Display System ◽  
3D Display ◽  
Multiple Projectors

scholarly journals Multi-Projector Calibration Based on Virtual Viewing Space

2019 ◽  
Vol 19 (3) ◽  
Author(s):  
Liu Xizuo ◽  
Lin Yan ◽  
Xu Xiaogang ◽  
Ma Liang
Keyword(s):  
Virtual Environment ◽  
Large Scale ◽  
Geometric Correction ◽  
Display System ◽  
Projection Model ◽  
Manual Intervention ◽  
Projector Calibration ◽  
Angle Of View ◽  
Multiple Projectors ◽  
Channel Systems

In large-scale maritime maneuvering simulators, the multi-channel systems are usually used to tile multiple projectors on a cylindrical display to create a large virtual environment, which brings more realistic immersion to the users. In the non-planar multi-projector display system, to finish the work of geometric and photometric corrections, there exist the problems of difficult projector calibration, more manual intervention and poor adaptability. In order to solve these problems, a multi-projector calibration based on virtual viewing space is proposed in this paper. First, a virtual environment of multiple projectors is created, and by using the structured light and re-projection model on a cylindrical wall, the calibration of internal and external parameters of a projector are realized separately. Finally, the geometric correction is completed by the mapping relationship between the target images and the calibrated re-projected images. This method is free of limitation by the angle of view of a single camera and can calibrate any of the projectors in the multi-channel systems. The example results show that the projector’s parameters can be estimated more accurately, and the efficiency and accuracy of geometric correction can be improved. Good results are achieved when applying this method in the maritime maneuvering simulator system.

360-degree large-scale multiprojection light-field 3D display system

2018 ◽  
Vol 57 (8) ◽  
pp. 1817 ◽  
Author(s):  
Lixia Ni ◽  
Zhenxing Li ◽  
Haifeng Li ◽  
Xu Liu
Keyword(s):  
Large Scale ◽  
Light Field ◽  
Display System ◽  
3D Display

scholarly journals Full-chain modeling and performance analysis of integral imaging three-dimensional display system

2020 ◽  
Vol 16 (1) ◽  
Author(s):  
Ying Yuan ◽  
Xiaorui Wang ◽  
Yang Yang ◽  
Hang Yuan ◽  
Chao Zhang ◽  
...  
Keyword(s):  
Optimization Design ◽  
Quality Evaluation ◽  
Light Field ◽  
Three Dimensional ◽  
Display System ◽  
3D Display ◽  
Performance Characterization ◽  
Integral Imaging ◽  
Characterization Model ◽  
Display Quality

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.

scholarly journals A Calibration Method for Large-Scale Projection Based Floor Display System

2018 ◽  
Author(s):  
Chun Xie ◽  
Hidehiko Shishido ◽  
Yoshinari Kameda ◽  
Kenji Suzuki ◽  
Itaru Kitahara
Keyword(s):  
Large Scale ◽  
Calibration Method ◽  
Display System

scholarly journals Quantitative Evaluation of Work Efficiency and Eye Strain for Remote Control Construction Equipment Using 2D/3D Displays

2020 ◽  
Vol 14 (1) ◽  
pp. 133-138
Author(s):  
Yoshihiro Sato ◽  
Shohei Yamaguchi ◽  
Shota Funaki ◽  
Atsutoshi Kurihara ◽  
Yuki Kumagai ◽  
...  
Keyword(s):  
Remote Control ◽  
Quantitative Evaluation ◽  
High Accuracy ◽  
Construction Equipment ◽  
Work Efficiency ◽  
Display System ◽  
3D Display ◽  
Physical Conditions ◽  
Before And After ◽  
Operator Workload

Remotely operated construction machines are used in cases where the operators are in danger, such as on steep slopes or contaminated sites. However, remote operation differs from what operators perceive during hands-on machine operation. Various studies have focused on improving work efficiency by employing remote control operation to reduce operator workload. In these studies, questionnaires were generally employed to evaluate the operator workload. However, the results obtained from the questionnaires varied depending on the physical conditions and the mood of the person on that day. It was therefore concluded that an accurate evaluation cannot be performed based on this method. Hence, in this study, the eye strain of machine operators was measured using an Auto Refractor/Keratometer. In particular, the ciliary muscle activities were measured before and after operating three display systems used for remote control of construction equipment. A quantitative evaluation was then conducted based on the eye strain data. The 2D display system exhibited low work accuracy and efficiency and resulted in significant eye strain. Although the 3D display system that required glasses exhibited high accuracy and efficiency, it resulted in significant eye strain. The 3D display system that did not require glasses demonstrated high accuracy and lower eye strain. From the results presented above, it was confirmed that the autostereoscopic 3D system is suitable for operators.

Development of a HMD-type multifocus 3D display system using LEDs

2006 ◽  
Author(s):  
Sung-Kyu Kim ◽  
Dong-Wook Kim ◽  
Min-Chul Park ◽  
Yong-Moo Kwon ◽  
Jung-Young Son
Keyword(s):  
Display System ◽  
3D Display

Holographic full-color 3D display system using color-LCoS spatial light modulator

2005 ◽  
Author(s):  
Seung-Cheol Kim ◽  
Jaw-Woong Moon ◽  
Dong-Hwi Lee ◽  
Kwang-Chul Son ◽  
Eun-Soo Kim
Keyword(s):  
Spatial Light Modulator ◽  
Display System ◽  
3D Display ◽  
Light Modulator ◽  
Full Color

Color LCoS-based full-color electro-holographic 3D display system

2005 ◽  
Author(s):  
Jae-Woong Moon ◽  
Dong-Whi Lee ◽  
Seung-Cheol Kim ◽  
Eun-Soo Kim
Keyword(s):  
Display System ◽  
3D Display ◽  
Full Color

Highly Realistic 3D Display System for Space Composition Telecommunication

2015 ◽  
Vol 11 (2) ◽  
pp. 121-128 ◽  
Author(s):  
Munekazu Munekazu ◽  
Hideaki Takada ◽  
Yuma Honda ◽  
Shiro Ozawa ◽  
Satoshi Mieda ◽  
...  
Keyword(s):  
Display System ◽  
3D Display

Dual-side see-through integral imaging 3D display system based on lens array holographic optical element

Displays ◽  
2021 ◽  
pp. 102093
Author(s):  
Wu-Xiang Zhao ◽  
Han-Le Zhang ◽  
Qing-Lin Ji ◽  
Huan Deng ◽  
Da-Hai Li
Keyword(s):  
Optical Element ◽  
Display System ◽  
3D Display ◽  
Integral Imaging ◽  
Lens Array ◽  
Holographic Optical Element
Sign in / Sign up

Export Citation Format

Share Document