中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Tectonic Controls on Block Rotation and Sheeted Sill Emplacement in the Xigaze Ophiolite (Tibet): The Construction Mode of Slow-Spreading and Ultraslow-Spreading Oceanic Crusts 期刊论文  OAI收割
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 2021, 卷号: 22, 期号: 3, 页码: 23
作者:  
Liu, Tong;  Dick, Henry J. B.;  Liu, Chuan-Zhou;  Wu, Fu-Yuan;  Ji, Wen-Bin
  |  收藏  |  浏览/下载:30/0  |  提交时间:2021/10/19
Paleomagnetic constraints on the Mesozoic-Cenozoic paleolatitudinal and rotational history of Indochina and South China: Review and updated kinematic reconstruction 期刊论文  OAI收割
EARTH-SCIENCE REVIEWS, 2017, 卷号: 171, 页码: 58-77
作者:  
Li, Shihu;  Advokaat, Eldert L.;  van Hinsbergen, Douwe J. J.;  Koymans, Mathijs;  Deng, Chenglong
  |  收藏  |  浏览/下载:39/0  |  提交时间:2017/11/24
The effectiveness of the zoning of China's protected areas 期刊论文  OAI收割
BIOLOGICAL CONSERVATION, 2016, 卷号: 204, 页码: 231-236
作者:  
Xu, Weihua;  Li, Xiaosong;  Pimm, Stuart L.;  Hull, Vanessa;  Zhang, Jingjing
收藏  |  浏览/下载:29/0  |  提交时间:2017/04/24
Paleomagnetic study on Cretaceous and Paleogene rocks from eastern Heilongjiang, NE China and its tectonic implications 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2011, 卷号: 54, 期号: 3, 页码: 793-806
作者:  
Wang Hai-Long;  Huang Bao-Chun;  Qiao Qing-Qing;  Chen Jun-Shan
  |  收藏  |  浏览/下载:25/0  |  提交时间:2018/09/26
Paleomagnetic study on Cretaceous and Paleogene rocks from eastern Heilongjiang, NE China and its tectonic implications 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2011, 卷号: 54, 期号: 3, 页码: 793-806
作者:  
Wang Hai-Long;  Huang Bao-Chun;  Qiao Qing-Qing;  Chen Jun-Shan
  |  收藏  |  浏览/下载:13/0  |  提交时间:2018/09/26
An image matching algorithm based on sub-block coding (EI CONFERENCE) 会议论文  OAI收割
2nd International Workshop on Computer Science and Engineering, WCSE 2009, October 28, 2009 - October 30, 2009, Qingdao, China
作者:  
Li S.
收藏  |  浏览/下载:34/0  |  提交时间:2013/03/25
In order to improve the speed of matching algorithm and simplify the processing of existing sub-block coding matching  a new template matching method combined local gray value encoding matching and phase correlation is proposed. Matching process is divided into rough matching and fine matching. Rough matching divides the image into certain size blocks called R-block  sums the gray value of each R-block pixel  encodes the R-block according to the gray value distribution of R-block with the adjacent R-block  and matches by step between the template and each search sub-image. Then  fine matching results are obtained using phase correlation according to initial match parameters. The time complexity of the proposed method is (M2) .The new algorithm is faster than traditional algorithm by two orders of magnitude  and the speed has improved twice compared with existing sub-block coding method. Experiments demonstrate that the new algorithm is robust to the linear transformation of pixel grey value and image noise  and it also has the stability of small-angle rotation. 2009 IEEE.  
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.  
Palaeomagnetic investigation on Early-Middle Triassic sediments of the North China block: a new Early Triassic palaeopole and its tectonic implications 期刊论文  OAI收割
GEOPHYSICAL JOURNAL INTERNATIONAL, 2005, 卷号: 160, 期号: 1, 页码: 101-113
作者:  
Huang, BC;  Shi, RP;  Wang, YC;  Zhu, RX
  |  收藏  |  浏览/下载:20/0  |  提交时间:2018/09/26