中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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机构
长春光学精密机械与物... [2]
上海药物研究所 [1]
昆明植物研究所 [1]
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OAI收割 [4]
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会议论文 [2]
期刊论文 [2]
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2010 [1]
2009 [1]
2002 [1]
1997 [1]
学科主题
Plant Scie... [1]
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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
The real color video consumes much transfer bandwidth and the resource of the hardware. A new approach is introduced to process the real color video images in real-time using color components combination to fit to the limited transmission bandwidth. The Y
U
V planes of video images are packed to construct a 2 dimensional complex array. Through the decomposition of frequency domain
the Y
U
V frequency can be got respectively by performing Fourier transform a time on the specific complex array. These frequencies can be filtered to generate the final filtered images. The experiment results show that the proposed algorithm is 3X speed compared to the traditional algorithm
and it reduces 1/3 bandwidth of video data stream. 2010 IEEE.
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
Taxus yunnanensis
taxuyunnanines S
Taxaceae
T
bark 11(150 -> 1)-abeotaxoids
U and V
1D and 2D NMR
TAXANES
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
Mussaenda pubescens
Rubiaceae
triterpenes
saponins
mussaendosides U and V