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Is there coordination of leaf and fine root traits at local scales? A test in temperate forest swamps 期刊论文  OAI收割
ECOLOGY AND EVOLUTION, 2019, 卷号: 9, 期号: 15, 页码: 8714-8723
作者:  
Hu, Yu-Kun;  Pan, Xu;  Yang, Xue-Jun;  Liu, Guo-Fang;  Liu, Xu-Yan
  |  收藏  |  浏览/下载:80/0  |  提交时间:2019/09/24
Is there coordination of leaf and fine root traits at local scales? A test in temperate forest swamps 期刊论文  OAI收割
ECOLOGY AND EVOLUTION, 2019, 卷号: 9, 期号: 15, 页码: 8714-8723
作者:  
Hu, Yu-Kun;  Pan, Xu;  Yang, Xue-Jun;  Liu, Guo-Fang;  Liu, Xu-Yan
  |  收藏  |  浏览/下载:17/0  |  提交时间:2022/01/06
Dynamic simulation and 2D multiple scales and multiple sources within basin geothermal field 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF OIL GAS AND COAL TECHNOLOGY, 2013, 卷号: 6, 期号: 1-2, 页码: 103-119
作者:  
收藏  |  浏览/下载:13/0  |  提交时间:2016/01/25
Features extraction and matching of teeth image based on the SIFT algorithm (EI CONFERENCE) 会议论文  OAI收割
2012 2nd International Conference on Computer Application and System Modeling, ICCASM 2012, July 27, 2012 - July 29, 2012, Shenyang, China
作者:  
Wang X.;  Wang X.;  Wang X.
收藏  |  浏览/下载:28/0  |  提交时间:2013/03/25
Using of SIFT algorithm in the image of teeth model  can detect the features of the teeth image effectively. In this approach  first  search over all scales and image locations by using a difference-of-Gaussian function to identify potential interest points that are invariant to scale and orientation. Second  select keypoints based on measures of their stability and a detailed model is fit to determine location and scale at each candidate location. Third  assign one or more orientations to each keypoint location based on local image gradient directions. Last  measure the local image gradients at the selected scale in the region around each keypoint. And then use the KNN algorithm to match the features. Through lots of experiments and comparing with other feature extraction methods  this method can detect the features of the teeth model effectively  and offer some available parameters for 3D reconstruction of the teeth model. the authors.