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	Image anti-aliasing techniques for Internet visual media processing: a review 期刊论文 OAI收割 JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE C-COMPUTERS & ELECTRONICS, 2014, 卷号: 15, 期号: 9, 页码: 717-728 Jiang, Xu-dong; Sheng, Bin; Lin, Wei-yao; Lu, Wei; Ma, Li-zhuang \| 收藏 \| 浏览/下载：30/0 \| 提交时间：2014/12/16 Anti-aliasing Hardware Post-filtering Pre-filtering Sampling
	Analysis on the influence of random vibration on MEMS gyro precision and error compensation (EI CONFERENCE) 会议论文 OAI收割 2011 3rd International Conference on Mechanical and Electronics Engineering, ICMEE 2011, September 23, 2011 - September 25, 2011, Hefei, China 作者: Li M. 收藏 \| 浏览/下载：22/0 \| 提交时间：2013/03/25 In order to improve its precision in dynamic environment a Kalman filter was designed. Firstly two sets of random drift data of MEMS gyro were respectively analysed and it was found that the variance of random drift under random vibration significantly increased and its mean also changed. Then calculation results show that attitude angle error under random vibration is 2.6 while in the static test it is 0.25. Analysis on the characteristics of random drift was carried out and it is found that it can be treated as stable normally distributed random signal. Finally a corresponding Kalman filter was designed. The results indicated that after filtering the variance of random drift is reduced to 0.0282 26.4% of pre-filtering and the attitude angle error is reduced to 1.5 57.7% of pre-filtering. The above method can effectively compensate for the attitude angle error of MEMS gyro caused by random vibration. This study can be a reference to the application of low-cost MEMS gyro in aircraft navigation. (2012) Trans Tech Publications Switzerland.
	The influence factors analyses of imaging precision in pre-stack reverse time migration 期刊论文 OAI收割 CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2010, 卷号: 53, 期号: 8, 页码: 1902-1913 作者: Yang Ren-Hu; Chang Xu; Liu Yi-Ke \| 收藏 \| 浏览/下载：19/0 \| 提交时间：2018/09/26 Pre-stack reverse time migration Influence factors Artifacts Amplitude compensation filtering
	The influence factors analyses of imaging precision in pre-stack reverse time migration 期刊论文 OAI收割 CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2010, 卷号: 53, 期号: 8, 页码: 1902-1913 作者: Yang Ren-Hu; Chang Xu; Liu Yi-Ke \| 收藏 \| 浏览/下载：15/0 \| 提交时间：2018/09/26 Pre-stack reverse time migration Influence factors Artifacts Amplitude compensation filtering
	Electro-optical imaging system identification using pseudo-random binary pattern (EI CONFERENCE) 会议论文 OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China Le Y.; Jian W.; Jianzhong Z.; Qiang S.; Jianzhuo L. 收藏 \| 浏览/下载：23/0 \| 提交时间：2013/03/25 A method using pseudo-random binary pattern is developed for electro-optical imaging system identification. The imaging system is taken as a stable linear time-invariant and causal filter and its transfer function is measured through the pseudo-random binary sequence impulse responses identification. A digital mirror device (DMD) light projector is developed as the target generator and wavelet thresholding is used to denoise the captured image. Pre-filtering spectral estimation algorithm with adaptive parameter selection is also proposed for the identification process overcoming the challenge brought by the size limit derived from the optical isoplantic region. Simulations and experiments are presented to show the effectiveness of the proposed method.0-64. 2010 IEEE.
	方差阴影图中的光渗现象消除算法期刊论文 OAI收割计算机辅助设计与图形学学报, 2009, 卷号: 21, 期号: 2, 页码: 165-171 薛盖超; 吕伟伟; 刘学慧 \| 收藏 \| 浏览/下载：18/0 \| 提交时间：2010/08/23 阴影图方差阴影图光渗现象预滤波最小-最大阴影图 shadow maps variance shadow maps light bleeding pre-filtering min-max shadow maps