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浏览/检索结果: 共10条，第1-10条 帮助

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Hand-drawn sketch and vector map matching based on topological features 期刊论文  OAI收割
FRONTIERS IN EARTH SCIENCE, 2023, 卷号: 11
作者:  Lu, Yuefeng;  Sun, Ying;  Liu, Shuo;  Li, Jing;  Liu, Yanru
  |  收藏  |  浏览/下载：32/0  |  提交时间：2023/04/06
A water-energy nexus analysis to a sustainable transition path for Ji-shaped bend of the Yellow River, China 期刊论文  OAI收割
ECOLOGICAL INFORMATICS, 2022, 卷号: 68, 页码: 10
作者:  Zhang, Fan;  Xuan, Xin;  He, Qin
  |  收藏  |  浏览/下载：22/0  |  提交时间：2022/09/21
A water-energy nexus analysis to a sustainable transition path for Ji-shaped bend of the Yellow River, China 期刊论文  OAI收割
ECOLOGICAL INFORMATICS, 2022, 卷号: 68, 页码: 10
作者:  Zhang, Fan;  Xuan, Xin;  He, Qin
  |  收藏  |  浏览/下载：30/0  |  提交时间：2022/09/21
Design and Analysis of RF Window for a Superconducting Cyclotron 期刊论文  OAI收割
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 2018, 卷号: 65, 期号: 9, 页码: 2615-2619
作者:  Liu, Guang;  Song, Yuntao;  Chen, Gen;  Zhao, Yanping;  Zhang, Xin
  |  收藏  |  浏览/下载：38/0  |  提交时间：2019/12/11
Micro-electro-mechanical systems capacitive ultrasonic transducer with a higher electromechanical coupling coefficient 期刊论文  OAI收割
Micro & Nano Letters, 2015, 卷号: 10, 期号: 10, 页码: 4
作者:  Miao, J(苗静);  Shen, WJ(沈文江);  He, CD;  Xue, CY;  Xiong, JJ
收藏  |  浏览/下载：85/0  |  提交时间：2015/12/31
silicon  elemental semiconductors  silicon-on-insulator  wafer bonding  electromechanical effects  ultrasonic transducers  capacitive transducers  micromechanical devices  micromachining  vibrations  membranes  finite element analysis  reliability  capacitance  electromechanical coupling coefficient  capacitive micromachined ultrasonic transducer  impedance matching  propagation medium  microelectromechanical system capacitive ultrasonic transducer  silicon on insulator  wafer bonding  optimum geometric dimensions  membrane mechanical vibration  electrical characteristics  finite-element analysis  operation mode  device safety  device reliability  equivalent stress  operation-collapse voltage  bottom electrodes  glass substrate surface  parallel parasitic capacitance  Si  SiO2  
Characteristic point match algorithm based on the SURF in binocular stereo vision (EI CONFERENCE) 会议论文  OAI收割
5th International Conference on Intelligent Networks and Intelligent Systems, ICINIS 2012, November 1, 2012 - November 3, 2012, Tianjin, China
作者:  Wang L.;  Wang L.;  Wang L.;  Yang L.;  Yang L.
收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25
Scene matching based on directional keylines and polar transform (EI CONFERENCE) 会议论文  OAI收割
2010 IEEE 10th International Conference on Signal Processing, ICSP2010, October 24, 2010 - October 28, 2010, Beijing, China
作者:  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.
收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25
Scene matching under complex background is a priority and difficulty in the field of computer vision  it has the characteristics of rotation and scaling invariance  commonly used in matching real-time collected images and photos for navigation. Scene matching techniques are faced with complex natural scenes  anti-light and anti-slight-distortion  the image distortion exist  applicable for complex scene matching. The project has a new idea: combining the keylines with the vectors description based on polar image translation  such as light  and utilize the rotation-scale-invariance vectors to describe the extracted keylines  change of gray levels  this method includes three steps: keylines extraction  perspective  description and matching. Preliminary experiments show that this keylines-based scene matching algorithm is applicable for image matching under complex background. 2010 IEEE.  scaling and other differences  which cause matching difficult. This paper aims to find a scene matching algorithm  
41 mW high average power picosecond 177.3 nm laser by second-harmonic generation in KBBF 期刊论文  OAI收割
OPTICS COMMUNICATIONS, 2010, 卷号: 283, 期号: 1, 页码: 142
Yang, F; Wang, ZM; Zhou, Y; Cheng, XK; Xie, SY; Peng, QJ; Cui, DF; Zhang, JY; Wang, XY; Zhu, Y; Chen, CT; Xu, ZY
收藏  |  浏览/下载：26/0  |  提交时间：2013/09/17
Theoretical and experimental investigations of nanosecond 177.3 nm deep-ultraviolet light by second harmonic generation in KBBF 期刊论文  OAI收割
APPLIED PHYSICS B-LASERS AND OPTICS, 2009, 卷号: 96, 期号: 2-3, 页码: 415
Yang, F; Wang, Z; Zhou, Y; Li, F; Xu, J; Xu, Y; Cheng, X; Lu, Y; Bo, Y; Peng, Q; Cui, D; Zhang, X; Wang, X; Zhu, Y; Xu, Z
收藏  |  浏览/下载：24/0  |  提交时间：2013/09/23
Adaptive Image Segmentation based on Fast Thresholding and Image Merging (EI CONFERENCE) 会议论文  OAI收割
16th International Conference on Artificial Reality and Telexistence - Workshops, ICAT 2006, November 29, 2006 - December 1, 2006, Hangzhou, China
作者:  Zhang Y.;  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.
收藏  |  浏览/下载：14/0  |  提交时间：2013/03/25
Image segmentation is the first essential and important step of low level vision. This paper proposes a novel algorithm for adaptive image segmentation  it can be applied in many conditions  based on thresholding technique and segments merging according to their characteristics combine with spatial position. Our earlier work of getting the entire information of the histogram could help choose the multiple thresholds. However  including complex target segmented. We describe the algorithm in detail and perform simulation experiments. The computation based on pixels can fully parallel processing to save time. 2006 IEEE.  not all the peaks of the histogram correspond to obvious structural unit in the image. Spatial information must be involved. This paper also suggests subjoining segments matching for video image tracking. They will give great help to image segmentation. The proposed algorithm can meet the real-time requirement and lead to higher segmentation accuracy  some types of texture can also be segmented well