Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Ye Zheng"'
Publikováno v:
IEEE Robotics and Automation Letters. 6:1020-1027
This letter studies the problem of air-to-air visual detection of micro unmanned aerial vehicles (UAVs) by monocular cameras. This problem is important for many applications such as vision-based swarming of UAVs, malicious UAV detection, and see-and-
Publikováno v:
IEEE Transactions on Circuits and Systems II: Express Briefs. 67:921-925
The accurate alignment between visual features and semantic concepts is a challenging problem in zero-shot object detection. To address that, this brief proposes a new algorithm using attributes based category similarity. An unsupervised learning met
Publikováno v:
Computer Vision – ACCV 2020 ISBN: 9783030695347
ACCV (3)
ACCV (3)
Zero-shot detection (ZSD) is crucial to large-scale object detection with the aim of simultaneously localizing and recognizing unseen objects. There remain several challenges for ZSD, including reducing the ambiguity between background and unseen obj
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b28c942b6e2eaab0bd51d1ab88c08c3
https://doi.org/10.1007/978-3-030-69535-4_7
https://doi.org/10.1007/978-3-030-69535-4_7
Publikováno v:
Journal of Cleaner Production. 307:127085
The traditional cement production wastes a large amount of natural resources and energy, and causes environmental pollution, which cannot meet the green and sustainable development needs of modern building materials. Geopolymer is an environmentally
Publikováno v:
ICCE-TW
In this paper, we consider the shortest problem in the coal transportation network of the thermal power plant. The assumed coal transportation network connects a dedicate ship uploaders for the power plant to each coal-fired generators. We analyze th
Autor:
Kai Liu, Ye Zheng, Xiang Zhao, Jun Zhou, Yifeng Yang, Bing He, Xiaolong Chen, Guang-Bo Liu, Man Hu, Chun Zhao, Jianhua Wang
Publikováno v:
Optics express. 24(11)
We report an 8-element spectral beam combination of Yb-doped all fiber superfluorescent sources around 1070 nm wavelength. Each source consists of a 60 mW front-end and a 1.5 kW three-stage fiber amplifier chain. The eight output beamlets are spectra
Autor:
Chun Zhao, Xiaolong Chen, Jun Zhou, Bing He, Kai Liu, Ye Zheng, Gang Bai, Xiang Zhao, Yifeng Yang, Yunfeng Qi
Publikováno v:
Laser Physics. 28:025101
We implement a fast beam quality factor evaluation of a large-mode-area 20/400 µm fiber based on mode decomposition and reconstruction. Each transverse mode power weight factor and relative phase difference at the fiber output facet are estimated by
Autor:
Yifeng Yang, Yunfeng Qi, Xiang Zhao, Gang Bai, Kai Liu, Xiaojun Li, Biao Peng, Bing He, Xiaolong Chen, Jun Zhou, Ye Zheng, Chun Zhao
Publikováno v:
Journal of Optics. 19:065801
Mode instability (MI) has become one of the main restrictions for further power scaling of large mode area (LMA) fiber systems. A periodical large-small-core (PLSC) filter in a strongly pumped LMA fiber amplifier based on multimode interference and s
Autor:
Xiaolong Chen, Kai Liu, Chun Zhao, Yifeng Yang, Yunfeng Qi, Ye Zheng, Bing He, Jun Zhou, Jianhua Wang, Man Hu
Publikováno v:
Journal of Optics. 18:105501
Nanosecond pulses with a widely tunable repetition-rate and pulse-duration at 1 μm wavelength are obtained by spectrally combining two pulse fiber amplifiers using a home-made polarization-independent multilayer dielectric reflective diffraction gra
Autor:
Guang-Bo Liu, Xiaolong Chen, Bing He, Kai Liu, Jianhua Wang, Yifeng Yang, Chun Zhao, Yunfeng Qi, Ye Zheng, Jun Zhou
Publikováno v:
Chinese Physics Letters. 33:074207
The stimulated Brillouin scattering (SBS) threshold enhancement factor in a pure white noise linewidth broadening Yb-doped fiber amplifier (YDFA) with a short large mode area fiber is theoretically and experimentally studied. We demonstrate a 1064.08