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• OAI收割 [11]

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浏览/检索结果: 共11条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择提交时间升序提交时间降序作者升序作者降序题名升序题名降序发表日期升序发表日期降序 Globalization and decarbonization: Changing strategies of global oil and gas companies 期刊论文  OAI收割 WILEY INTERDISCIPLINARY REVIEWS-CLIMATE CHANGE, 2023 作者:  Guo, Yue   |  收藏  |  浏览/下载：21/0  |  提交时间：2023/07/14 decarbonization  global shift  globalization  oil and gas company  strategy   Prediction of the dynamic distribution for Eucheuma denticulatum (Rhodophyta, Solieriaceae) under climate change in the Indo-Pacific Ocean 期刊论文  OAI收割 MARINE ENVIRONMENTAL RESEARCH, 2022, 卷号: 180, 页码: 9 作者:  Du, Yuqun;  Zhang, Jie;  Jueterbock, Alexander;  Duan, Delin   |  收藏  |  浏览/下载：38/0  |  提交时间：2023/01/12 Eucheuma denticulatum  Global warming  Maximum entropy model  Range shift  Suitable habitat   Potential Range Shift of Snow Leopard in Future Climate Change Scenarios 期刊论文  OAI收割 SUSTAINABILITY, 2022, 卷号: 14, 期号: 3, 页码: 14 作者:  Li, Xinhai;  Ma, Liming;  Hu, Dazhi;  Ma, Duifang;  Li, Renqiang   |  收藏  |  浏览/下载：38/0  |  提交时间：2022/09/21 alpine ecosystem  conservation planning  global warming  model selection  species distribution model  range shift  representative concentration pathways (RCPs)   Upward elevation and northwest range shifts for alpine Meconopsis species in the Himalaya-Hengduan Mountains region 期刊论文  OAI收割 ECOLOGY AND EVOLUTION, 2019, 卷号: 9, 期号: 7, 页码: 4055-4064 作者:  He, Xie;  Burgess, Kevin S.;  Yang, Xue-Fei;  Ahrends, Antje;  Gao, Lian-Ming   |  收藏  |  浏览/下载：65/0  |  提交时间：2019/05/24 Alpine ecosystems  biodiversity hotspots  global climate change  Meconopsis  range shift   Sedimentary biogeochemical record in Lake Gonghai: Implications for recent lake changes in relatively remote areas of China 期刊论文  OAI收割 SCIENCE OF THE TOTAL ENVIRONMENT, 2019, 卷号: 649, 页码: 929-937 作者:  Wan, Dejun   |  收藏  |  浏览/下载：30/0  |  提交时间：2020/05/29 Global warming  Human activity  Pollution  Diatom  Regime shift  Remote lake   Climate Warming-induced Upward Shift of Moso Bamboo Population on Tianmu Mountain, China 期刊论文  OAI收割 Journal of Mountain Science, 2013, 卷号: 10, 期号: 3, 页码: 363-369 SONG Xin-zhang; PENG Chang-hui; ZHOU Guo-mo; JIANG Hong; WANG Wei-feng; XIANG Wen-hua 收藏  |  浏览/下载：54/0  |  提交时间：2013/06/14 Moso bamboo  Climate change  Global warming  Upward shift  Carbon sequestration   The new approach for infrared target tracking based on the particle filter algorithm (EI CONFERENCE) 会议论文  OAI收割 International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China 作者:  Sun H.;  Han H.-X.;  Sun H. 收藏  |  浏览/下载：68/0  |  提交时间：2013/03/25 Target tracking on the complex background in the infrared image sequence is hot research field. It provides the important basis in some fields such as video monitoring  precision  and video compression human-computer interaction. As a typical algorithms in the target tracking framework based on filtering and data connection  the particle filter with non-parameter estimation characteristic have ability to deal with nonlinear and non-Gaussian problems so it were widely used. There are various forms of density in the particle filter algorithm to make it valid when target occlusion occurred or recover tracking back from failure in track procedure  but in order to capture the change of the state space  it need a certain amount of particles to ensure samples is enough  and this number will increase in accompany with dimension and increase exponentially  this led to the increased amount of calculation is presented. In this paper particle filter algorithm and the Mean shift will be combined. Aiming at deficiencies of the classic mean shift Tracking algorithm easily trapped into local minima and Unable to get global optimal under the complex background. From these two perspectives that "adaptive multiple information fusion" and "with particle filter framework combining"  we expand the classic Mean Shift tracking framework.Based on the previous perspective  we proposed an improved Mean Shift infrared target tracking algorithm based on multiple information fusion. In the analysis of the infrared characteristics of target basis  Algorithm firstly extracted target gray and edge character and Proposed to guide the above two characteristics by the moving of the target information thus we can get new sports guide grayscale characteristics and motion guide border feature. Then proposes a new adaptive fusion mechanism  used these two new information adaptive to integrate into the Mean Shift tracking framework. Finally we designed a kind of automatic target model updating strategy to further improve tracking performance. Experimental results show that this algorithm can compensate shortcoming of the particle filter has too much computation  and can effectively overcome the fault that mean shift is easy to fall into local extreme value instead of global maximum value.Last because of the gray and fusion target motion information  this approach also inhibit interference from the background  ultimately improve the stability and the real-time of the target track. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).   Shifting phenology and abundance under experimental warming alters trophic relationships and plant reproductive capacity 期刊论文  OAI收割 ECOLOGY, 2011, 卷号: 92, 期号: 6, 页码: 1201-1207 Liu, Yinzhan; Reich, Peter B.; Li, Guoyong; Sun, Shucun 收藏  |  浏览/下载：28/0  |  提交时间：2012/11/09 alpine meadow  Anemone trullifolia var. linearis  biodiversity  Gentiana formosa  global warming  Melanchra pisi  phenological shift  trophic interaction   Adaptive pyramid mean shift for global real-time visual tracking 期刊论文  OAI收割 IMAGE AND VISION COMPUTING, 2010, 卷号: 28, 期号: 3, 页码: 424-437 作者:  Li, Shu-Xiao;  Chang, Hong-Xing;  Zhu, Cheng-Fei 收藏  |  浏览/下载：29/0  |  提交时间：2015/08/12 Global visual tracking  Fast mean shift  Adaptive level  Kernel-based tracking  Tracking and pointing subsystem   The movement estimation of target and background by fourier phase spectrum difference (EI CONFERENCE) 会议论文  OAI收割 2010 6th International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2010, September 23, 2010 - September 25, 2010, Chengdu, China 作者:  Zhang X.;  Zhang X.;  Zhang X.;  Wang J.;  Zhang S. 收藏  |  浏览/下载：31/0  |  提交时间：2013/03/25 An algorithm for estimating displacement of the moving target and background by shift theory of Fourier transform is presented. According to the relation between the change and the Fourier transform of image sequence  the method employs the displacement value of the moving target and background by the difference of Fourier phase spectrum. The algorithm estimates the movements from the whole field of the image with excellent global property. This paper provides the calculus and experiments of the algorithm which show the accuracy of 1 pixel. 2010 IEEE.