中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Stereoscopic Image Retargeting Based on Deep Convolutional Neural Network 期刊论文  OAI收割
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 2021, 卷号: 31, 期号: 12, 页码: 4759-4770
作者:  
Fan, Xiaoting;  Lei, Jianjun;  Liang, Jie;  Fang, Yuming;  Ling, Nam
  |  收藏  |  浏览/下载:54/0  |  提交时间:2022/06/21
Stereoscopic Image Stitching via Disparity-Constrained Warping and Blending 期刊论文  OAI收割
IEEE TRANSACTIONS ON MULTIMEDIA, 2020, 卷号: 22, 期号: 3, 页码: 655-665
作者:  
Fan, Xiaoting;  Lei, Jianjun;  Fang, Yuming;  Huang, Qingming;  Ling, Nam
  |  收藏  |  浏览/下载:41/0  |  提交时间:2020/12/10
Analysis of Lorentzian Line Shape Function Broadened by Non-Sinusoidal Wavelength Modulation 期刊论文  OAI收割
spectroscopy and spectral analysis, 2014, 卷号: 34, 期号: 3, 页码: 597-600
作者:  
Sun You-qun;  Wang Yun-tao;  Ruan Chi;  Xu Song-song
收藏  |  浏览/下载:40/0  |  提交时间:2015/07/13
Research on automatic Hartmann test of membrane mirror (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者:  
Zhang P.
收藏  |  浏览/下载:47/0  |  提交时间:2013/03/25
Electrostatic membrane mirror is ultra-lightweight and easy to acquire a large diameter comparing with traditional optical elements  so its development and usage is the trend of future large mirrors. In order to research the control method of the static stretching membrane mirror  the surface configuration must be tested. However  membrane mirror's shape is always changed by variable voltages on the electrodes  and the optical properties of membrane materials using in our experiment are poor  so it is difficult to test membrane mirror by interferometer and null compensator method. To solve this problem  an automatic optical test procedure for membrane mirror is designed based on Hartmann screen method. The optical path includes point light source  CCD camera  splitter and diffuse transmittance screen. The spots' positions on the diffuse transmittance screen are pictured by CCD camera connected with computer  and image segmentation and centroid solving is auto processed. The CCD camera's lens distortion is measured  and fixing coefficients are given to eliminate the spots' positions recording error caused by lens distortion. To process the low sampling Hartmann test results  Zernike polynomial fitting method is applied to smooth the wave front. So low frequency error of the membrane mirror can be measured then. Errors affecting the test accuracy are also analyzed in this paper. The method proposed in this paper provides a reference for surface shape detection in membrane mirror research. 2010 Copyright SPIE - The International Society for Optical Engineering.  
Shape distortion of TC1M titanium alloy sheets during drawing process 期刊论文  OAI收割
ACTA METALLURGICA SINICA, 2007, 卷号: 43, 期号: 8, 页码: 875-878
作者:  
Zhang Lingyun;  Lu Qiang;  Han Zhiren
  |  收藏  |  浏览/下载:29/0  |  提交时间:2021/02/02
Distortion of beam shape by a rotating double-prism wide-angle laser beam scanner 期刊论文  OAI收割
opt. eng., 2006, 卷号: 45, 期号: 4, 页码: 43004
孙建锋; 刘立人; 云茂金; 万玲玉; 张明丽
收藏  |  浏览/下载:2501/298  |  提交时间:2009/09/18
Distortion of beam shape by a rotating double-prism wide-angle laser beam scanner 期刊论文  OAI收割
opt. eng., 2006, 卷号: 45, 期号: 4, 页码: 43004
孙建锋; 刘立人; 云茂金; 万玲玉; 张明丽
收藏  |  浏览/下载:1929/289  |  提交时间:2009/09/18
The effect of the rotating double-prism wide-angle laser beam scanner on the beam shape 期刊论文  OAI收割
optik, 2005, 卷号: 116, 期号: 12, 页码: 553, 556
孙建锋; 刘立人; 云茂金; 万玲玉; 张明丽
收藏  |  浏览/下载:1934/244  |  提交时间:2009/09/18