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Matija Milanic and Rok Hren
The Adding-Doubling (AD) algorithm is a general analytical solution of the radiative transfer equation (RTE). AD offers a favorable balance between accuracy and computational efficiency, surpassing other RTE solutions, such as Monte Carlo (MC) simulation...
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Szymon Kurpiel, Krzysztof Zagórski, Jacek Cieslik, Krzysztof Skrzypkowski and Witold Brostow
The aerospace industry is imposing increasingly strict dimensional tolerances, which is forcing continuous development in component manufacturing. Ensuring tight dimensional tolerances is difficult for thin-walled structures due to their reduced stiffnes...
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Nguyen Anh Tien, Cam Thanh Son, Valentina Olegovna Mittova, Irina Yakovlevna Mittova, Elena Viktorovna Tomina, Truong Chi Hien and Bui Xuan Vuong
In this paper, powders consisting of o-EuFeO3 nanoparticles were obtained by the co-precipitation method using two different precipitating agents (NH3 and (NH4)2CO3 solutions; corresponding products were denoted as samples S.1 and S.2, respectively) and ...
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Denis D. Chesalin, Andrei P. Razjivin, Alexey S. Dorokhov and Roman Y. Pishchalnikov
It is known that the protein surrounding, as well as solvent molecules, has a significant influence on optical spectra of organic pigments by modulating the transition energies of their electronic states. These effects manifest themselves by a broadening...
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Wenhai Zhao, Wanrun Li, Boyuan Fan and Yongfeng Du
The dynamic characteristics of existing wind turbine structures are usually monitored using contact sensors, which is not only expensive but also time-consuming and laborious to install. Recently, computer vision technology has developed rapidly, and mon...
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Dongning Li, Deshan Ma, Dong Su, Shaohua Rao, Wenbin Wang and Chengyu Hong
Long-term monitoring data for super-long piles are scarce and valuable. This paper reports axial strain measurements of a cast-in-place large-diameter pile embedded 76.7 m into a ?weathered trench? of granite in Nanshan District, Shenzhen, China, using B...
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Stefano Silvestrini, Margherita Piccinin, Giovanni Zanotti, Andrea Brandonisio, Paolo Lunghi and Michèle Lavagna
The exploration of celestial bodies such as the Moon, Mars, or even smaller ones such as comets and asteroids, is the next frontier of space exploration. One of the most interesting and attractive purposes from the scientific point of view in this field,...
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Funmilayo B. Offiong, Sinan Sinanovic and Wasiu O. Popoola
Efficient frame synchronization is essential for data recovery in communication systems. In this study, a single pilot sequence is used to achieve both frame synchronization and peak-to-average power ratio (PAPR) reduction. The two systems considered are...
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Xianlei Chen, Yiping Wu, Huadong Hao, Haolei Shi and Haocai Huang
The tracked wall-climbing robot is used for the capacity calibration of several oil tanks located in Zhoushan city, China. And we also plan to use the robot for the inspection like non-destructive testing of the oil tanks by adding the corresponding sens...
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Jin-Cherng Hsu, Heng-Ying Cho, Tsang-Yen Hsieh and Jyh-Liang Wang
An ultra-low anti-reflection optical coating on both surfaces of a plastic cover slip was studied for use in confocal image measurements. The optical reflectance at a wavelength of 632.8 nm was less than 0.1% when the coated sample was placed in a liquid...
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Dániel Zámbó, András Deák
Pág. 244 - 251
In this study, visible light extinction spectra of different gold nanoparticle assemblies were simulated using boundary element method (BEM) in order to investigate the optical properties of structures which determine the experimentally measured spectra ...
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Luís P. N. Mendes, Ana M. C. Ricardo, Alexandre J. M. Bernardino and Rui M. L. Ferreira
We present novel velocimetry algorithms based on the hybridization of correlation-based Particle Image Velocimetry (PIV) and a combination of Lucas?Kanade and Liu?Shen optical flow (OpF) methods. An efficient Aparapi/OpenCL implementation of those method...
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Xiangxu Lei, Shengfu Xia, Hongkang Liu, Xiaozhen Wang, Zhenwei Li, Baomin Han, Jizhang Sang, You Zhao and Hao Luo
The Changchun Observatory of the National Astronomical Observatories, Chinese Academy of Sciences, and the Shanghai Astronomical Observatory are used to generate very short arc (VSA) angle observations of objects in low Earth orbit (LEO) and geostationar...
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Zilu Zhao, Hui Long and Hongjian You
Satellite remote sensing has entered the era of big data due to the increase in the number of remote sensing satellites and imaging modes. This presents significant challenges for the processing of remote sensing systems and will result in extremely high...
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Weiliang Tao, Yan Liu, Zhimin Ma and Wenbin Hu
This paper proposes a novel particle image velocimetry (PIV) technique to generate an instantaneous two-dimensional velocity field for sediment-laden fluid based on the optical flow algorithm of ultrasound imaging. In this paper, an ultrasonic PIV (UIV) ...
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Lei Sheng, Weichao Zhao, Ying Zhou, Weimeng Lin, Chunyan Du and Hongwei Lou
An optimization model for the optical imaging system was established in this paper. It combined the modern design of experiments (DOE) method known as Latin hypercube sampling (LHS), Kriging surrogate model training, and the multi-objective optimization ...
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Rongjun Mu, Peng Wu, Yanpeng Deng and Haofan Song
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Yang Yu, Xiaoxue Gong, Lei Zhang, Hongguang Jia and Ming Xuan
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Seonkoo Chee, Jaemyung Ryu and Hojong Choi
Microscopic Camera Inspection.
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Yanli Hou, Xianyu Su and Wenjing Chen
The alignment problem of a rotating optical measurement system composed of a charge-coupled device (CCD) camera and a turntable is discussed. The motion trajectory model of the optical center (or projection center in the computer vision) of a camera rota...
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