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• 地质与地球物理研究所 [4]
• 长春光学精密机械与物... [3]
• 遥感与数字地球研究所 [1]
• 国家天文台 [1]
• 海洋研究所 [1]
• 西安光学精密机械研究... [1]
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• OAI收割 [11]

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• 期刊论文 [7]
• 会议论文 [4]

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• 2022 [1]
• 2020 [3]
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• Geochemist... [1]

筛选

浏览/检索结果: 共11条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Least-Squares Reverse-Time Migration of Water-Bottom-Related Multiples 期刊论文  OAI收割 REMOTE SENSING, 2022, 卷号: 14, 期号: 23, 页码: 20 作者:  Zhang, Yanbao;  Liu, Yike;  Yi, Jia   |  收藏  |  浏览/下载：13/0  |  提交时间：2023/03/31 multiples imaging  multiples decomposition  least-squares reverse-time migration  depth migration   Supervised Dimensionality Reduction Methods via Recursive Regression 期刊论文  OAI收割 IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS, 2020, 卷号: 31, 期号: 9, 页码: 3269-3279 作者:  Liu, Yun;  Zhang, Rui;  Nie, Feiping;  Li, Xuelong;  Ding, Chris   |  收藏  |  浏览/下载：47/0  |  提交时间：2020/10/23 Dimensionality reduction  Linear discriminant analysis  Eigenvalues and eigenfunctions  Learning systems  Computer science  Optical imaging  Optics  Optimal scaling (OS)  orthogonal least squares regression (OLSR)  orthogonal linear discriminant analysis (OLDA)  recursive regression  supervised dimensionality reduction   Viscoacoustic least-squares migration with a blockwise Hessian matrix: an effective Q approach 期刊论文  OAI收割 JOURNAL OF GEOPHYSICS AND ENGINEERING, 2020, 卷号: 17, 期号: 4, 页码: 618-634 作者:  Song, Mingpeng;  Zhang, Jianfeng;  Zhang, Jiangjie   |  收藏  |  浏览/下载：33/0  |  提交时间：2021/01/08 high-resolution imaging  least-squares migration  effective Q  seismic attenuation  Hessian matrix   Single-Step Data-Domain Least-Squares Reverse-Time Migration Using Gabor Deconvolution for Subsalt Imaging 期刊论文  OAI收割 IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, 2020, 卷号: 17, 期号: 1, 页码: 13-16 作者:  Liu, Qiancheng;  Lu, Yongming;  Hui, Sun;  Zhang, Hao   |  收藏  |  浏览/下载：31/0  |  提交时间：2020/05/19 Deconvolution  Imaging  Transforms  Data models  Mathematical model  Radar imaging  Lighting  Deconvolution  Gabor transform  least-squares imaging  subsalt   Hapke's parameters inverse method of Lunar analog sample 期刊论文  OAI收割 JOURNAL OF INFRARED AND MILLIMETER WAVES, 2018, 卷号: 37, 期号: 2, 页码: 227-+ 作者:  Xu Xue-Sen;  Liu Jian-Jun;  Liu Bin;  Liu Da-Wei   |  收藏  |  浏览/下载：26/0  |  提交时间：2020/03/10 bi-directional reflectance  Chang' E-3 VIS-NIR Imaging Spectrometers  reflectance  photometric correction  Hapke model  radiation transfer  the least squares algorithm   Improving imaging quality using least-squares reverse time migration: application to data from Bohai basin 期刊论文  OAI收割 JOURNAL OF GEOPHYSICS AND ENGINEERING, 2017, 卷号: 14, 期号: 5 作者:  Zhang, Hao;  Liu, Qiancheng;  Wu, Jizhong   |  收藏  |  浏览/下载：25/0  |  提交时间：2017/11/24 least-squares migration  imaging quality  reflectivity  linear inversion   Migration of surface correlated multiples based on one-way wave equation 期刊论文  OAI收割 CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2014, 卷号: 57, 期号: 4, 页码: 1241-1250 作者:  Ye Yue-Ming;  Zhao Chang-Lei;  Zhuang Xi-Jin;  Guo Shu-Juan;  Qian Jin 收藏  |  浏览/下载：26/0  |  提交时间：2015/06/11 One-wave equation based migration  Multiples imaging  Least-squares based filtering  Norm II  Salt imaging   A sub-pixel extraction method for the center of the circular structure from spot array calibration target (EI CONFERENCE) 会议论文  OAI收割 2012 3rd International Conference on Information Technology for Manufacturing Systems, ITMS 2012, September 8, 2012 - September 9, 2012, Qingdao, China 作者:  Liu Y.;  Zhang T.;  Yang H.;  Gao X.;  Liu Y. 收藏  |  浏览/下载：75/0  |  提交时间：2013/03/25 The imaging measurement system must be calibrated before application. In calibration procedure  sub-pixel center extraction is the crucial step for the final accuracy. In this paper  a new sub-pixel extraction method is proposed. Edge detection at pixel level is obtained using LOG operator  then sub-pixel edge detection is realized using the Facet model. Finally  the least squares ellipse fitting is operated on the sub-pixel edge to determine the sub-pixel center. Experiment on a series of simulated images indicates that this algorithm is able to realize the center location accuracy of 0.01-0.02 pixel  and meets the requirement of sub-pixel level. (2012) Trans Tech Publications  Switzerland.   Research on image restoration of Roll-Swing imaging seeker (EI CONFERENCE) 会议论文  OAI收割 3rd IEEE International Conference on Advanced Computer Control, ICACC 2011, January 18, 2011 - January 20, 2011, Harbin, China 作者:  Zhang H.;  Zhang H. 收藏  |  浏览/下载：28/0  |  提交时间：2013/03/25 To achieve a correct image receiving for Roll-Swing imaging seeker  the mechanism and imaging process is analyzed. The causes of image rotation are discussed. The influence of the frame encoders' precision on imaging de-rotation quality is analyzed. The Roll-Swing imaging seeker is designed for high-speed aerocraft  thus the received images are greatly degraded due to atmospheric turbulence. A new method of image restoration is proposed for turbulence-degraded images in this paper. The method is to get point spread function (PSF) based on the estimation of optical transfer function (OTF) according to the optical system design simulation. Finally  to obtain the restored image  constrained least squares filtering is used with the known PSF. The experiment results indicate that the new restoration method has a favorable effect to satisfy requirement of the automatic target recognition. 2011 IEEE.   Design of aspherical surfaces for panoramic imagers using multipopulations genetic algorithm (EI CONFERENCE) 会议论文  OAI收割 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China 作者:  Jin C.-S.;  Wang L.-P.;  Liang Z.-Z. 收藏  |  浏览/下载：30/0  |  提交时间：2013/03/25 A design method of aspherical surface for panoramic imaging system with two mirrors using multi-populations genetic algorithms is proposed. Astigmatism induced by mirrors may significantly compromise image resolution. To solve this problem  we induced algebraic expression of astigmatism in panoramic imager based on generalized Coddington equation and theory of geometric optics. Then  we propose an optimization process for mirror profile design to eliminate astigmatism and provide purposely-designed projection formula with aid of MPGA. A series of polynomial expressions of aspherical surfaces are obtained and procedures of the design are presented. In order to facilitate ray tracing and aberration calculation  even asphere surface model is obtained by using of hybrid schemes combining MPGA and damped least squares. Finally  a prototype of the catadioptric panoramic imager has been developed and panoramic ring image is obtained. 2009 SPIE.