scholarly journals Design of monocentric wide field-of-view and high-resolution computational imaging system

2019 ◽  
Vol 68 (8) ◽  
pp. 084201
Author(s):  
Fei Liu ◽  
Ya-Zhe Wei ◽  
Ping-Li Han ◽  
Jia-Wei Liu ◽  
Xiao-Peng Shao
Keyword(s):  
High Resolution ◽  
Imaging System ◽  
Computational Imaging ◽  
Field Of View ◽  
Wide Field ◽  
Wide Field Of View

Design of Airborne Multi-Scale Wide-Field-of-View and High-Resolution Imaging System

2021 ◽  
Vol 41 (2) ◽  
pp. 0208002
Author(s):  
李江勇 Li Jiangyong ◽  
冯位欣 Feng Weixin ◽  
刘飞 Liu Fei ◽  
魏雅喆 Wei Yazhe ◽  
邵晓鹏 Shao Xiaopeng
Keyword(s):  
High Resolution ◽  
Imaging System ◽  
Field Of View ◽  
Wide Field ◽  
High Resolution Imaging ◽  
Multi Scale ◽  
Wide Field Of View ◽  
Resolution Imaging

Synthetic Wavelength Holography: Snapshot Non-Line-of-Sight Imaging with High-Resolution and Wide Field of View

2020 ◽  
Author(s):  
Florian Willomitzer ◽  
Prasanna Rangarajan ◽  
Fengqiang Li ◽  
Muralidhar Balaji ◽  
Marc Christensen ◽  
...  
Keyword(s):  
High Resolution ◽  
Imaging System ◽  
Scattered Light ◽  
Field Of View ◽  
Line Of Sight ◽  
Wide Field ◽  
Navigation Systems ◽  
Small Probe ◽  
Wide Field Of View ◽  
Non Line Of Sight

Abstract The presence of a scattering medium in the imaging path between an object and an observer is known to severely limit the visual acuity of the imaging system. We present an approach to circumvent the deleterious effects of scattering, by exploiting spectral correlations in scattered wavefronts. Our Synthetic Wavelength Holography (SWH) method is able to recover a holographic representation of hidden targets with high resolution over a wide field of view. The complete object field is recorded in a snapshot-fashion, by monitoring the scattered light return in a small probe area. This unique combination of attributes opens up a plethora of new Non-Line-of-Sight imaging applications ranging from medical imaging and forensics, to early-warning navigation systems and reconnaissance. Adapting the findings of this work to other wave phenomena will help unlock a wider gamut of applications beyond those envisioned in this paper.

Design of deep-sea optical imaging system with wide field of view and ultra-high resolution

2019 ◽  
Vol 27 (11) ◽  
pp. 2289-2295
Author(s):  
姜 洋 JIANG Yang ◽  
全向前 QUAN Xiang-qian ◽  
杜 杰 DU Jie ◽  
邢 妍 XING Yan ◽  
吕深圳 L Shen-zhen ◽  
...  
Keyword(s):  
High Resolution ◽  
Optical Imaging ◽  
Deep Sea ◽  
Imaging System ◽  
Field Of View ◽  
Wide Field ◽  
Wide Field Of View ◽  
Optical Imaging System

Monocentric imaging system with wide field of view and high resolution for distant view observation

Optik ◽  
2018 ◽  
Vol 157 ◽  
pp. 56-62
Author(s):  
Siqi Liu ◽  
Shengqian Chang ◽  
Siman Zhang ◽  
Ting Xie ◽  
Peng Sun ◽  
...  
Keyword(s):  
High Resolution ◽  
Imaging System ◽  
Field Of View ◽  
Wide Field ◽  
Wide Field Of View

Image Restoration in a Wavefront Coding Imaging System with a Wide Field of View

2010 ◽  
Vol 30 (2) ◽  
pp. 388-393 ◽  
Author(s):  
周峰 Zhou Feng ◽  
叶然 Ye Ran ◽  
李光伟 Li Guangwei ◽  
张海涛 Zhang Haitao ◽  
王东生 Wang Dongsheng
Keyword(s):  
Image Restoration ◽  
Imaging System ◽  
Field Of View ◽  
Wide Field ◽  
Wavefront Coding ◽  
Wide Field Of View

Optical design of common-aperture multispectral and polarization optical imaging system with wide field of view

2019 ◽  
Vol 28 (8) ◽  
pp. 084201
Author(s):  
Xin Liu ◽  
Jun Chang ◽  
Shuai Feng ◽  
Yu Mu ◽  
Xia Wang ◽  
...  
Keyword(s):  
Optical Imaging ◽  
Imaging System ◽  
Optical Design ◽  
Field Of View ◽  
Wide Field ◽  
Wide Field Of View ◽  
Optical Imaging System

On-Orbit Calibration Approach Based on Partial Calibration-Field Coverage for the GF-1/WFV Camera

2019 ◽  
Vol 85 (11) ◽  
pp. 815-827 ◽  
Author(s):  
Mi Wang ◽  
Beibei Guo ◽  
Ying Zhu ◽  
Yufeng Cheng ◽  
Chenhui Nie
Keyword(s):  
High Resolution ◽  
High Accuracy ◽  
Field Of View ◽  
Estimation Methods ◽  
Large Field ◽  
Wide Field ◽  
Optical Remote Sensing ◽  
Calibration Data ◽  
Stereoscopic Images ◽  
Wide Field Of View

The Gaofen-1 (GF1) optical remote sensing satellite is the first in China's series of high-resolution civilian satellites and is equipped with four wide-field-of-view cameras. The cameras work together to obtain an image 800 km wide, with a resolution of 16 m, allowing GF1 to complete a global scan in four days. To achieve high-accuracy calibration of the wide-field-of-view cameras on GF1, the calibration field should have high resolution and broad coverage based on the traditional calibration method. In this study, a GF self-calibration scheme was developed. It uses partial reference calibration data covering the selected primary charge-coupled device to achieve high-accuracy calibration of the whole image. Based on the absolute constraint of the ground control points and the relative constraint of the tie points of stereoscopic images, we present two geometric calibration models based on paired stereoscopic images and three stereoscopic images for wide-field-of-view cameras on GF1, along with corresponding stepwise internal-parameter estimation methods. Our experimental results indicate that the internal relative accuracy can be guaranteed after calibration. This article provides a new approach that enables large-field-of-view optical satellites to achieve high-accuracy calibration based on partial calibration-field coverage.

Optical System Design with High Resolution and Large Field of View for the Remote Sensor

2007 ◽  
Vol 364-366 ◽  
pp. 550-554
Author(s):  
Jun Chang ◽  
Zhi Cheng Weng ◽  
Yong Tian Wang ◽  
De Wen Cheng ◽  
Hui Lin Jiang
Keyword(s):  
High Resolution ◽  
Optical System ◽  
Design Method ◽  
Field Of View ◽  
Large Field ◽  
Wide Field ◽  
Remote Sensor ◽  
Wide Field Of View ◽  
Technological Developments ◽  
Technological Opportunities

In this paper, we are presenting a design method and its results for a space optical system with high resolution and wide field of view. This optical system can be used both in infrared and visible configurations. The designing of this system is based on an on-axis three-mirror anastigmatic (TMA) system. Here the on-axis concept allows wide field of view (FOV) enabling a diversity of designs available for the Multi-Object Spectrometer instruments optimized for low scattered and low emissive light. The available FOVs are upto 1º in both spectrum ranges, whereas the available aperture range is F/15 - F/10. The final optical system is a three-mirror telescope with two on-axis and one off-axis segment and its resolution is 0.3m or even lower. The distinguished feature of this design is that it maintains diffraction-limited image at wide wavelengths. The technological developments in the field of computer generated shaping of large-sized optical surface details with diffraction-limited imagery have opened new avenues towards the designing techniques. Such techniques permit us to expand these technological opportunities to fabricate the aspherical off-axis mirrors for a complex configuration.

Method to design two aspheric surfaces for a wide field of view imaging system with low distortion

2015 ◽  
Vol 54 (27) ◽  
pp. 8241 ◽  
Author(s):  
Yinxu Bian ◽  
Haifeng Li ◽  
Yifan Wang ◽  
Zhenrong Zheng ◽  
Xu Liu
Keyword(s):  
Imaging System ◽  
Field Of View ◽  
Wide Field ◽  
Aspheric Surfaces ◽  
Wide Field Of View ◽  
Low Distortion

scholarly journals Having your cake and eating it too: Wide field of view and high resolution VR

2002 ◽  
Vol 2 (10) ◽  
pp. 134-134
Author(s):  
R. W. Massof ◽  
L. Brown ◽  
M. D. Shapiro ◽  
G. D. Barnett ◽  
F. H. Baker
Keyword(s):  
High Resolution ◽  
Field Of View ◽  
Wide Field ◽  
Wide Field Of View
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