Geometrical-based quasi-aspheric surface description and design method for miniature, low-distortion, wide-angle camera lens

2020 ◽  
Vol 59 (27) ◽  
pp. 8408
Author(s):  
Zhenfeng Zhuang ◽  
Xavier Dallaire ◽  
Jocelyn Parent ◽  
Patrice Roulet ◽  
Simon Thibault
Keyword(s):  
Design Method ◽  
Wide Angle ◽  
Aspheric Surface ◽  
Camera Lens ◽  
Surface Description ◽  
Low Distortion ◽  
Wide Angle Camera

Mechatronic Design of ARC Humanoid Robot Open Platform: First Fully 3D Printed Kid-Sized Robot

2020 ◽  
Vol 17 (03) ◽  
pp. 2050010
Author(s):  
Saeed Saeedvand ◽  
Hadi S. Aghdasi ◽  
Jacky Baltes
Keyword(s):  
Humanoid Robot ◽  
Size Range ◽  
Robot Design ◽  
3D Printer ◽  
Wide Angle ◽  
Open Platform ◽  
3D Printed ◽  
Wide Angle Camera ◽  
Computational Resources ◽  
User Friendly

Although there are several popular and capable humanoid robot designs available in the kid-size range, they lack some important characteristics: affordability, being user-friendly, using a wide-angle camera, sufficient computational resources for advanced AI algorithms, and mechanical robustness and stability are the most important ones. Recent advances in 3D printer technology enables researchers to move from model to physical implementation relatively easy. Therefore, we introduce a novel fully 3D printed open platform humanoid robot design named ARC. In this paper, we discuss the mechanical structure and software architecture. We show the capabilities of the ARC design in a series of experimental evaluations.

Determination of ghost images for the wide angle camera of the Rosetta ESA mission

2012 ◽  
Author(s):  
Vania Da Deppo ◽  
Fiorangela La Forgia ◽  
Giampiero Naletto ◽  
Maria-Guglielmina Pelizzo ◽  
Cesare Barbieri
Keyword(s):  
Wide Angle ◽  
Wide Angle Camera ◽  
Ghost Images

scholarly journals A prospective study of the safety and usefulness of a new miniature wide-angle camera: the “BirdView camera system”

2018 ◽  
Vol 33 (1) ◽  
pp. 199-205 ◽  
Author(s):  
Yusuke Sumi ◽  
Hiroyuki Egi ◽  
Minoru Hattori ◽  
Takahisa Suzuki ◽  
Masakazu Tokunaga ◽  
...  
Keyword(s):  
Prospective Study ◽  
Wide Angle ◽  
Camera System ◽  
Wide Angle Camera ◽  
A Prospective Study

Development of Spaceborne Wide-angle Aerosol Imager with Low-distortion and Uniform Image Surface

2013 ◽  
Vol 42 (4) ◽  
pp. 456-461
Author(s):  
薛庆生 XUE Qing-sheng ◽  
王淑荣 WANG Shu-rong ◽  
陈伟 CHEN Wei
Keyword(s):  
Wide Angle ◽  
Low Distortion

scholarly journals Photometric Correction of Chang’E-1 Interference Imaging Spectrometer’s (IIM) Limited Observing Geometries Data with Hapke Model

2020 ◽  
Vol 12 (22) ◽  
pp. 3676
Author(s):  
Xuesen Xu ◽  
Jianjun Liu ◽  
Dawei Liu ◽  
Bin Liu ◽  
Rong Shu
Keyword(s):  
Wide Angle ◽  
The Moon ◽  
Imaging Spectrometer ◽  
Multispectral Data ◽  
Lunar Reconnaissance Orbiter ◽  
Sample Data ◽  
Small Phase ◽  
Wide Angle Camera ◽  
Best Fit ◽  
Data Result

The main objective of this study is to develop a Hapke photometric model that is suited for Chang’E-1 (CE-1) Interference Imaging Spectrometer (IIM) data. We first divided the moon into three areas including ‘maria’, ‘new highland’ and old ‘highland’ with similar photometry characteristic based on the Hapke parameters of the moon derived from Lunar Reconnaissance Orbiter Camera (LROC) Wide Angle Camera (WAC) multispectral data. Then, we selected the sample data in the ‘maria’ area and obtained a new set of Hapke model’s parameters that can best fit these data. Result shows that photometric correction using Hapke model with these new derived parameters can eliminate the effect of variations in viewing and luminating geometry, especially ‘opposition surge’, more efficiently than the empirical model. The corrected mosaic shows no significant artifacts along the tile boundaries and more detailed information of the image can be exhibited due to a better correction of ‘opposition surge’ at small phase angle (g < 15°).

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