Results 21 to 30 of about 1,188,974 (311)

Volcanism and Deep Structures of the Moon

Space: Science & Technology, 2023
Volcanism is the most important endogenic geological process of the Moon, which is closely related to its internal structure and thermal history. Lunar volcanism is one of the most important topics for lunar science and explorations. Recent lunar orbital
Jiannan Zhao, Le Qiao, Feng Zhang, Yuefeng Yuan, Qian Huang, Jianguo Yan, Yuqi Qian, Yongliao Zou, Long Xiao   +8 more
doaj   +1 more source

An Objective Fabric Smoothness Assessment Method Based on a Multi-Scale Spatial Masking Model

IEEE Access, 2019
Fabric smoothness appearance assessment plays an important role in the textile and apparel industry. It remains a challenging task to evaluate the fabric smoothness objectively.
Jingan Wang, Kangjun Shi, Lei Wang, Zhengxin Li, Ruru Pan, Weidong Gao   +5 more
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Heterogeneous Image Matching via a Novel Feature Describing Model

Applied Sciences, 2019
Computer vision has been developed greatly in the past several years, and many useful and interesting technologies have been presented and widely applied. Image matching is an important technology based on similarity measurement.
Bin Zhou, Xuemei Duan, Dongjun Ye, Wei Wei, Marcin Woźniak, Robertas Damaševičius   +5 more
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Research on Fault Diagnosis of Rolling Bearing Based on Morlet Wavelet and Scale Space

机车电传动, 2021
Aiming at the difficulty of extracting the early fault features of rolling bearings, a rolling bearing fault diagnosis method based on Morlet wavelet and scale space was proposed.
Maohui WANG, Yong TANG, Haixiang LI, Ping YANG   +3 more
doaj  

Partial Block Scheme and Adaptive Update Model for Kernelized Correlation Filters-Based Object Tracking

Applied Sciences, 2018
In visual object tracking, the dynamic environment is a challenging issue. Partial occlusion and scale variation are typical challenging problems. We present a correlation-based object tracking based on the discriminative model.
Soowoong Jeong, Joonki Paik
doaj   +1 more source

Three-Dimensional Ultrasonic Reverse-Time Migration Imaging of Submarine Pipeline Nondestructive Testing in Cylindrical Coordinates

Journal of Marine Science and Engineering, 2023
Submarine pipelines are a safe and energy-efficient mode of gas transport. However, due to the complex manufacturing process and harsh operating environment, submarine pipelines are subject to fatigue cracks under long-term cyclic loading.
Daicheng Peng, Fei Cheng, Xiaoyu She, Yunpeng Zheng, Yongjie Tang, Zhuo Fan   +5 more
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Considerations and Framework for Foveated Imaging Systems †

Photonics, 2018
Foveated sight as observed in some raptor eyes is a motivation for artificial imaging systems requiring both wide fields of view as well as specific embedded regions of higher resolution.
Ram M. Narayanan, Timothy J. Kane, Terence F. Rice, Michael J. Tauber   +3 more
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Linear spatio-temporal scale-space

, 1997
This article shows how a linear scale-space formulation previously expressed for spatial domains extends to spatio-temporal data. Starting from the main assumptions that: (i) the scale-space should be generated by convolution with a semi-group of filter ...
Lindeberg, Tony, Tony Lindeberg, Lindeberg, Tony,   +2 more
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An Adaptive Method for Star Extraction from Digital Astronomical Images [PDF]

فصلنامه علوم و فناوری فضایی, 2010
Celestial positioning has been used for navigation purposes for many years. Stars as the extra-terrestrial benchmarks provide unique opportunity in absolute point positioning.
M. A. Sharifi, F. Samadzadegan, Saeed Saeed Farzaneh   +2 more
doaj  

South-north asymmetry of field-aligned currents in the magnetotail observed by Cluster [PDF]

, 2010
We statistically investigated features of the field-aligned current (FAC) distribution in plasma sheet boundary layers between 17 and 19 RE in the magnetotail using the curlometer technique to calculate the current from four-point magnetic field ...
Lahiff, A. D., Z. W. Cheng (7596539), A. T. Y. Lui (7591487), Lucek E, Pu ZY, Grocott A, Cheng ZW, Liu, Z. X., M. Dunlop (7596542), Shen C, A. Fazakerley (7596551), Lui, A. T. Y., Lui ATY, Mouikis C, M. G. G. T. Taylor, T. L. Zhang (7591511), I. Dandouras (7591256), Dunlop, M., Shen, C., Dunlop M, Kistler LM, M. G. G. T. Taylor (7592117), Z. W. Cheng, Mark Lester (6477935), C. Mouikis, Z. X. Liu (7596545), Rème, H., L. M. Kistler, Volwerk, M., I. Dandouras, Lester, M., Kistler, L. M., A. P. Walsh, Lester M, J. K. Shi, Grocott, A., M. Lester, K. Torkar, M. Lester (7589660), Z. X. Liu, C. Shen (1630555), Zhang TL, E. Lucek, C. Shen, Taylor, M. G. G. T., Zhang, T. L., Z. Y. Pu, Reme H, Taylor MGGT, A. D. Lahiff, J. K. Shi (7591508), Fazakerley, A., Shi JK, H. Rème, Lahiff AD, M. Volwerk (7591490), Walsh AP, Liu ZX, Pu, Z. Y., A. Fazakerley, M. Dunlop, Adrian Grocott (7590026), H. Reme (7594538), T. L. Zhang, A. Grocott, Dandouras, I., K. Torkar (7596548), Torkar, K., L. M. Kistler (7591505), C. Mouikis (7591502), Torkar K, E. Lucek (7591271), A. D. Lahiff (7591448), A. T. Y. Lui, Lucek, E., M. Volwerk, H. Rème (7591274), Mouikis, C., Dandouras I, Z. Y. Pu (7596554), Fazakerley A, Cheng, Z. W., A. Grocott (7601519), Volwerk M, Walsh, A. P., Shi, J. K., A. P. Walsh (7591499)   +86 more
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