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浏览/检索结果: 共13条，第1-10条 帮助

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PDD: Post-Disaster Dataset for Human Detection and Performance Evaluation 期刊论文  OAI收割
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2024, 卷号: 73, 页码: 14
作者:  Song, Haoqian;  Song, Weiwei;  Cheng, Long;  Wei, Yue;  Cui, Jinqiang
  |  收藏  |  浏览/下载：13/0  |  提交时间：2024/05/30
Complete and Accurate Indoor Scene Capturing and Reconstruction Using a Drone and a Robot 期刊论文  OAI收割
IEEE SENSORS JOURNAL, 2021, 卷号: 21, 期号: 10, 页码: 11858-11869
作者:  Gao, Xiang;  Zhu, Lingjie;  Cui, Hainan;  Hu, Zhanyi;  Liu, Hongmin
  |  收藏  |  浏览/下载：54/0  |  提交时间：2021/06/07
SIMSF: A Scale Insensitive Multi-Sensor Fusion Framework for Unmanned Aerial Vehicles Based on Graph Optimization 期刊论文  OAI收割
IEEE ACCESS, 2020, 卷号: 8, 页码: 118273-118284
作者:  Dai B(代波);  He YQ(何玉庆);  Yang LY(杨丽英);  Su Y(苏赟);  Yue, Yufeng
  |  收藏  |  浏览/下载：47/0  |  提交时间：2020/08/01
Research on the fast image motion compensation technology of aerial digital camera 会议论文  OAI收割
Jeju Island, Korea, Republic of, 2019-06-15
作者:  Chen, Weining;  Lei, Yangjie;  Yang, Hong Tao
  |  收藏  |  浏览/下载：63/0  |  提交时间：2019/09/25
Optical Design of a Compound Eye Camera with a Large-field of View for Unmanned Aerial Vehicles 期刊论文  OAI收割
Guangzi Xuebao/Acta Photonica Sinica, 2019, 卷号: 48, 期号: 7
作者:  X.-D.Yu;  Z.Y.-J;  W.Y.-Y;  X.H.-R;  Y.W.-X
  |  收藏  |  浏览/下载：42/0  |  提交时间：2020/08/24
Lens shutter for aerial photography 期刊论文  OAI收割
Optics and Precision Engineering, 2018, 卷号: 26, 期号: 1, 页码: 105-113
作者:  Yu, Chun-Feng;  Li, Hui;  Jia, Ping;  Ding, Ya-Lin
  |  收藏  |  浏览/下载：18/0  |  提交时间：2019/09/17
Geometric calibration and accuracy assessment of a multispectral imager on UAVs 会议论文  OAI收割
Optical Metrology and Inspection for Industrial Applications II, Beijing, China, November 5, 2012 - November 7,2012
Zheng, Fengjie; Yu, Tao; Chen, Xingfeng; Chen, Jiping; Yuan, Guoti
收藏  |  浏览/下载：20/0  |  提交时间：2014/12/07
Method of improving the accuracy of image motion measurement for panoramic aerial cameras (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, April 26, 2010 - April 29, 2010, Dalian, China
作者:  Jia P.
收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25
To improve the accuracy of image motion measurement for panoramic aerial cameras  the paper proposed a method of real-time image motion measurement based on 2D spatial correlation. An auxiliary area CCD is positioned paralleled to the main linear TDI CCD in the focal plane of the camera. For every frame of the image sequence taken by the auxiliary CCD  a prediction on the displacement of the current image in the flight direction is made based on the forward image motion velocity. The current and the reference images are combined together for 2D-correlation  which products an image motion vector. By decomposing the vector  both the forward and pendulum-swing image motions can be determined. The demanding computational requirements for the real-time 2D-correlation are covered by a joint transform optical correlator. Simulation test results show that the accuracy is improved and the measurement error is within 0.2 pixels for input images with SNR=1 dB. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Panoramic aerial camera image motion measurement using a hybrid system (EI CONFERENCE) 会议论文  OAI收割
2010 3rd IEEE International Conference on Computer Science and Information Technology, ICCSIT 2010, July 9, 2010 - July 11, 2010, Chengdu, China
作者:  Jia P.
收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25
Image motion compensation is significantly important for aerial camera photograph. To execute the compensation  we must determine the image motion exactly. This paper proposes a method of real-time image motion measurement for panoramic aerial cameras based on image processing using a hybrid system. Two cameras are simultaneously used in the hybrid system. One main linear CCD for imaging  while the other auxiliary low resolution high frame rate area CCD for determining the image motion based on 2D spatial correlation. The demanding computational requirements for the real-time 2D spatial correlation are covered by a joint transform optical correlator. Simulation test results show that the accuracy is improved and the measurement error is within 0.2 pixels for input images with SNR=1 dB. 2010 IEEE.  
A design on a control method of a new type of focal plane shutter (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Xue L.; Ming L.; Zheng L.-N.; Zhou J.-F.; Zhang H.-W.; Zhang J.-C.
收藏  |  浏览/下载：33/0  |  提交时间：2013/03/25
In order to ensure appropriate exposure time  and no exposure while electric charge is transferring after taking a photograph  it is necessary to have the shutter mechanism cooperate with CCD for area CCD aerial cameras. The ground object illumination has a wide range which is from 4000Lx to 100000Lx  so a shutter which is high efficient and a continuous stepless adjustment are also required. This paper introduces the fundamental principle  structural design and control procedure about this new focal plane shutter. Under the control of DSP  the velocity of shutter curtain governed by the shutter motor can be not only precisely controlled  but also the durability and the reliability are increased. The experiment results have shown that this new shutter has the higher stability of movement  long life span with more than 105 operating times  a wide range of exposure time from1/ 50s to 1/ 320s(depending on the slit width)and the exposure error is less than 10%. With the CCD gain adjustment  the performance of this shutter is fully satisfied with the requirements of area CCD aerial cameras. 2010 IEEE.