中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
长春光学精密机械与物... [2]
光电技术研究所 [1]
西安光学精密机械研究... [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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2014 [1]
2009 [1]
2006 [2]
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Improvement of image deblurring for opto-electronic joint transform correlator under projective motion vector estimation
期刊论文
OAI收割
optics communications, 2014, 卷号: 321, 页码: 189-194
作者:
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2015/03/17
Image reconstruction-restoration
Fourier optics and signal processing
Spatial light modulators
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:50/0
  |  
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.
Approaches to convergence enhancement of multiframe blind deconvolution of astronomical images
期刊论文
OAI收割
ACTA PHYSICA SINICA, 2006, 卷号: 55, 期号: 12, 页码: 6708-6714
作者:
Luo Lin
;
Wang Li
;
Cheng Wei-Dong
;
Shen Mang-Zuo
收藏
  |  
浏览/下载:34/0
  |  
提交时间:2015/09/21
atmospheric optics
astronomical observations
image processing and restoration
Restoration of moving blurred image based on TMS320C6416 (EI CONFERENCE)
会议论文
OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Liu W.
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浏览/下载:45/0
  |  
提交时间:2013/03/25
To absolve image blur caused by camera's high speed
fixed-point DSP TMS320C6416 and wiener filtering algorithm are adopted to stabilize image. On the premise that cameras have uniform motion
restoration model for moving blurred image was researched
the principle of Wiener filtering is explained
the key technologies of moving blurred image restoration with TMS320C6416 are introduced: how to complete FFT calculation of 32bit and how to exert DMA function of DSP to enhance processing speed
ring effect and ghost effect in restored image are explained
and how the parameter of wiener filter affects ring effect and ghost effect is discussed
in addition to this
other reasons of ring effect and ghost effect are analyzed detailed. Experiments shows that One TMS320C6416 chip can restore seven frames per second
there is great hope to realize real-time restoration if adopting multi-DSP or the FFT completion by hardware.