中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Color videos' multichannel combination for bandwidth reduction and fast frequency domain processing (EI CONFERENCE) 会议论文  OAI收割
2nd International Workshop on Education Technology and Computer Science, ETCS 2010, March 6, 2010 - March 7, 2010, Wuhan, Hubei, China
作者:  
Li S.
收藏  |  浏览/下载:19/0  |  提交时间:2013/03/25
Real-time restoration for motion-blurred color images by multichannel combination processing (EI CONFERENCE) 会议论文  OAI收割
1st International Workshop on Education Technology and Computer Science, ETCS 2009, March 7, 2009 - March 8, 2009, Wuhan, Hubei, China
作者:  
Sun H.;  Sun H.;  Li S.
收藏  |  浏览/下载:46/0  |  提交时间:2013/03/25
A fast algorithm is proposed to restore the color images  degraded in a deterministic way by motion- blurred  by multichannel combination processing. Based on the color space conversion model  the point spread functions of the image motion on each plane of YUV422 image can be achieved. The U  V plane of YUV422 images are combined to form a new UV plane which has the same size as Y plane. Then  the Y  UV plane are packed into a two dimensional complex array which can be transformed directly by FFT and result a composite frequency spectrum. Wiener filter is applied to filter Y  UV spectrums separated from the composite spectra. On Graphics Processing Unit (GPU) platform  the proposed algorithm can restore a 1024x1024 24-bit motion-blurred color image in 7.95ms  and the PSNR of the restored image is 27.12 which reveals a good restoration performance. 2009 IEEE.  
Taxuyunnanines S-V, new taxoids from Taxus yunnanensis 期刊论文  OAI收割
PLANTA MEDICA, 2002, 卷号: 68, 期号: 3, 页码: 253-257
Li, SH; Zhang, HJ; Niu, XM; Yao, P; Sun, HD; Fong, HHS
收藏  |  浏览/下载:24/0  |  提交时间:2012/10/12
Triterpenes and triterpenoid saponins from Mussaenda pubescens 期刊论文  OAI收割
PHYTOCHEMISTRY, 1997, 卷号: 45, 期号: 5, 页码: 1073-1078
作者:  
Zhao, WM;  Wolfender, JL;  Hostettmann, K;  Cheng, KF;  Xu, RS
  |  收藏  |  浏览/下载:29/0  |  提交时间:2019/01/08