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Extracting road edges from MLS point clouds via a local planar fitting algorithm 其他
2019-01-01
作者:  Xu, Jingzhong;  Wang, Ge;  Ma, Lina;  Wang, Jiarong
收藏  |  浏览/下载：8/0  |  提交时间：2019/12/05
The Far-field Estimation for Microstrip Line Based on Near-field Scanning 会议论文
2018 12th International Symposium on Antennas, Propagation and EM Theory, ISAPE 2018 - Proceedings, 2018-12-03
作者:  Liu, W.;  Yan, Z.;  Min, Z.
收藏  |  浏览/下载：12/0  |  提交时间：2019/12/30
Aspects of the final phase of enamel formation as evidenced by observations of superficial enamel of human third molars using scanning electron microscopy 期刊论文
ARCHIVES OF ORAL BIOLOGY, 2018, 卷号: 86
作者:  Risnes, Steinar;  Li, Chunfang
收藏  |  浏览/下载：2/0  |  提交时间：2019/12/05
Aspects of the final phase of enamel formation as evidenced by observations of superficial enamel of human third molars using scanning electron microscopy 期刊论文
ARCHIVES OF ORAL BIOLOGY, 2018, 卷号: 86
作者:  Risnes, Steinar;  Li, Chunfang
收藏  |  浏览/下载：4/0  |  提交时间：2019/12/05
Aging characteristics of shed materials of composite insulators in ±800 kV DC tension strings (EI收录) 期刊论文
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering, 2015, 卷号: 35, 页码: 735-741
作者:  Xie, Congzhen[1];  Yuan, Chao[1];  Hu, Changmeng[1];  Li, Licheng[1];  Zhao, Huazhong[2]
收藏  |  浏览/下载：3/0  |  提交时间：2019/04/25
Automated Extraction of 3-D Railway Tracks from Mobile Laser Scanning Point Clouds 期刊论文
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, 2014, 卷号: 7, 期号: 12
作者:  Yang, Bisheng;  Fang, Lina
收藏  |  浏览/下载：3/0  |  提交时间：2019/12/05
Semi-automated extraction and delineation of 3D roads of street scene from mobile laser scanning point clouds 期刊论文
ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING, 2013, 卷号: 79
作者:  Yang, Bisheng;  Fang, Lina;  Li, Jonathan
收藏  |  浏览/下载：2/0  |  提交时间：2019/12/05
Design and analysis of Roll-Swing imaging seeker scan scheme (EI CONFERENCE) 会议论文
2010 2nd International Conference on Industrial Mechatronics and Automation, ICIMA 2010, May 30, 2010 - May 31, 2010, Wuhan, China
Bai Y.; Liu B.; Jia H.; Guo L.
收藏  |  浏览/下载：15/0  |  提交时间：2013/03/25
Key techniques of laser direct writing of fine lines on the spherical surface (EI CONFERENCE) 会议论文
ICO20: Optical Design and Fabrication, August 21, 2005 - August 26, 2005, Changchun, China
Liang F.; Hu J.
收藏  |  浏览/下载：15/0  |  提交时间：2013/03/25
The main principles of laser direct writing (LDW) system for lines on the spherical surface (SS) are discussed. It is pointed out that line profile is determined by the exposure dose distribution  which lies on the light intensity distribution of focus plane and the scanning speed. To improve the quality of line profile on the SS  several key techniques as follows are introduced. Firstly  the unique system configuration  four axes mutually intersecting at the center of the SS  is adopted  which ensures the shape of the focus be maintained circular during the writing period. Secondly  an automatic focus system (AFS) with the function of automatic focus in a certain range is introduced. Thirdly  to guarantee the linear velocity to accord with the exposure character of the photoresist all the time  an efficient arithmetic that controls motors run at appropriate angular velocity in different latitude is developed. Finally  to achieve a stable and well-behaved system so as to compensate the velocity instability resulting from unavoidable errors of mechanical and electronics factor  a powerful programmable multi-axis controller (PMAC) is utilized as the kernel element of the servocontrol system  and the curves of step response and parabolic response achieved by feedforward and PID loop tuning indicate that the location precision and velocity stability have reached a high level. The experimental results of LDW of lines on the SS work piece with a diameter 30 mm and a radius equal to 100 mm are given. The section analysis of the lines on the photoresist by the atomic force microscope (AFM) after exposure and development is performed. The results show that line width is about 3.0 m  and the steep sides of the lines are parallel to each other.  
An exact reconstruction algorithm for triple-source helical cone-beam CT 其他
2006-01-01
Zhao, Jun; Jiang, Ming; Zhuang, Tiange; Wang, Ge
收藏  |  浏览/下载：3/0  |  提交时间：2015/11/16

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