中国科学院机构知识库网格
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浏览/检索结果: 共8条,第1-8条 帮助

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Characteristic point match algorithm based on the SURF in binocular stereo vision (EI CONFERENCE) 会议论文  OAI收割
5th International Conference on Intelligent Networks and Intelligent Systems, ICINIS 2012, November 1, 2012 - November 3, 2012, Tianjin, China
作者:  
Wang L.;  Wang L.;  Wang L.;  Yang L.;  Yang L.
收藏  |  浏览/下载:27/0  |  提交时间:2013/03/25
Image registration based on Mexican-hat wavelets and pseudo-Zernike moments (EI CONFERENCE) 会议论文  OAI收割
2012 World Automation Congress, WAC 2012, June 24, 2012 - June 28, 2012, Puerto Vallarta, Mexico
作者:  
Liu Y.;  Liu Y.;  Liu Y.
收藏  |  浏览/下载:37/0  |  提交时间:2013/03/25
Image registration is a key technique in pattern recognition and image processing  and it is widely used in many application areas such as computer vision  remote sensing  image fusion and object tracking. A method for image registration combining Mexican-hat wavelets and pseudo-Zernike moments is proposed. Firstly  feature points are extracted using scale-interaction Mexican-hat wavelets in the reference image and sensed image respectively. Then  pseudo-Zernike moments are used to match them and classical RANSAC used to eliminate the wrong matches. And then  the well match points are used to estimate the best affine transform parameters by least squares minimization. At last  the sensed image is transformed and resampled to accomplish the image registration. The experiments indicate that the proposed algorithm extracts feature points and matches them exactly and eliminates wrong matched points effectively and achieves nice registration results. 2012 TSI Press.  
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.  
A REMOTE SENSING IMAGERY AUTOMATIC FEATURE REGISTRATION METHOD BASED ON MEAN-SHIFT 会议论文  OAI收割
2012 Ieee International Geoscience and Remote Sensing Symposium, New York
Yang, Jian; Huang, Qingqing; Wu, Bin; Chen, Jiansheng
收藏  |  浏览/下载:22/0  |  提交时间:2014/12/07
A matching algorithm on statistical properties of Harris corner (EI CONFERENCE) 会议论文  OAI收割
2011 International Conference on Information and Automation, ICIA 2011, June 6, 2011 - June 8, 2011, Shenzhen, China
作者:  
He B.
收藏  |  浏览/下载:21/0  |  提交时间:2013/03/25
The fundamental goal of target recognition and video tracking is to match target template with source image. Most matching methods are based on image intensity or multi-feature points. And the latter method is more popular for its high accuracy and small calculation. Image Registration Based on Feature Points focus on effective feature extraction of image points and paradigm. Harris corner in the image rotation  gray  noise and viewpoint change conditions  has an ideal match results  is more recent application of one feature point. This paper extract the Harris corner deviation and covariance firstly  experiments show that the two features exclusive  then applied them to image registration for the first time. A set of actual images have shown  this proposed method not only overcomes the complicated background  gray uneven distribution problems  but also pan and zoom the image has a good resistance. 2011 IEEE.  
Image registration based on log-polar transform and SIFT features (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on Computational and Information Sciences, ICCIS2010, December 17, 2010 - December 19, 2010, Chengdu, Sichuan, China
作者:  
Liu Y.;  Liu Y.;  Liu Y.
收藏  |  浏览/下载:18/0  |  提交时间:2013/03/25
图像对应点确定及其应用 学位论文  OAI收割
工学硕士, 中国科学院自动化研究所: 中国科学院研究生院, 2007
万崇玮
收藏  |  浏览/下载:79/0  |  提交时间:2015/09/02
嵌入式环境下低配置指纹识别技术研究 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, 2006
作者:  
谢卫华
收藏  |  浏览/下载:34/0  |  提交时间:2015/09/02