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浏览/检索结果: 共10条，第1-10条 帮助

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Online Forest Disturbance Detection at the Sub-Annual Scale Using Spatial Context From Sparse Landsat Time Series 期刊论文  OAI收割
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2022, 卷号: 60, 页码: 14
作者:  Wu, Ling;  Liu, Xiangnan;  Liu, Meiling;  Yang, Jinghui;  Zhu, Lihong
  |  收藏  |  浏览/下载：35/0  |  提交时间：2022/08/22
Detecting Forest Disturbance and Recovery in Primorsky Krai, Russia, Using Annual Landsat Time Series and Multi-Source Land Cover Products 期刊论文  OAI收割
REMOTE SENSING, 2020, 卷号: 12, 期号: 1, 页码: 21
作者:  Hu, Yang;  Hu, Yunfeng
  |  收藏  |  浏览/下载：36/0  |  提交时间：2020/05/19
Detecting Forest Disturbance and Recovery in Primorsky Krai, Russia, Using Annual Landsat Time Series and Multi-Source Land Cover Products 期刊论文  OAI收割
REMOTE SENSING, 2020, 卷号: 12, 期号: 1, 页码: 21
作者:  Hu, Yang;  Hu, Yunfeng
  |  收藏  |  浏览/下载：20/0  |  提交时间：2020/05/19
Feedforward Control for Wind Turbine Load Reduction with Pseudo-LIDAR Measurement 期刊论文  OAI收割
International Journal of Automation and Computing, 2018, 卷号: 15, 期号: 2, 页码: 142-155
作者:  Jie Bao;  Hong Yue;  William E. Leithead;  Ji-Qiang Wang
  |  收藏  |  浏览/下载：15/0  |  提交时间：2021/02/23
Comparison of Sampling Designs for Estimating Deforestation from Landsat TM and MODIS Imagery: A Case Study in Mato Grosso, Brazil SCI/SSCI论文  OAI收割
2014
Zhu S. Y.; Zhang H. L.; Liu R. G.; Cao Y.; Zhang G. X.
收藏  |  浏览/下载：24/0  |  提交时间：2014/12/24
永磁同步交流伺服驱动关键技术研究 学位论文  OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2010
作者:  秦晓飞
收藏  |  浏览/下载：112/0  |  提交时间：2015/09/02
An improved two-dimensional entropy method for star trail tracing in deep sky (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:  Wang Y.-J.;  Yao Z.-J.
收藏  |  浏览/下载：32/0  |  提交时间：2013/03/25
The trace of star trail is an important component of deep sky detection. The stars are low contrast targets  and their self-rotation will make their brightness change in cycle. Above all  the trail trace is vulnerable to the block and disturbance of other stars. Traditional one-dimensional maximum entropy thresholding algorithm is vulnerable to the noise  and the calculation of two-dimensional entropy methods is too large and takes too much time. This paper proposes an improved two-dimensional entropy threshold algorithm. We use recursion iteration method to eliminate the redundancy calculation  and reduce the size of two-dimensional histogram based on the deep sky stars characteristic  such as low contrast  fuzziness and the centralized histogram. We also combine our algorithm with the space trail trace model to forecast the star trace. Experiments results show  when the star are blocked or they turn dark  the method still can well extrapolate the star trace. Our method improves the capability of trailing the ebb and small star  and increases the precision of tracing. It is also robust to the noise  so there is a good application foreground for the method.  
Disturbance Detection and Assessment with MODIS Imagery in Boreal Forest Ecosystem 会议论文  OAI收割
2006 Ieee International Geoscience and Remote Sensing Symposium, Vols 1-8, New York
Fu, Anmin; Sun, Guoqing; Cai, Yulin; Ni, Wenjian
收藏  |  浏览/下载：15/0  |  提交时间：2014/12/07
Monitoring forest dynamics using satellite imagery - a case study in the natural reserve of changbai mountain in china 期刊论文  iSwitch采集
Forest ecology and management, 2005, 卷号: 210, 期号: 1-3, 页码: 25-37
作者:  Liu, QJ;  Li, XR;  Ma, ZQ;  Takeuchi, N
收藏  |  浏览/下载：15/0  |  提交时间：2019/05/10
Monitoring forest dynamics using satellite imagery - a case study in the natural reserve of Changbai Mountain in China SCI/SSCI论文  OAI收割
2005
Liu Q. J.; Li X. R.; Ma Z. Q.; Takeuchi N.
收藏  |  浏览/下载：26/0  |  提交时间：2012/06/08