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The real-time Complex cruise scene motion detection system Based on DSP 会议论文
International Symposium on Optoelectronic Technology and Application 2014: Image Processing and Pattern Recognition, IPTA 2014, May 13, 2014 - May 15, 2014, Beijing, China
Wu Z.-G.; Wang M.-J.
收藏  |  浏览/下载：11/0  |  提交时间：2015/04/27
Super resolution optical image restoration for ground-based large telescope 会议论文
8th Symposium on Multispectral Image Processing and Pattern Recognition, MIPPR 2013, October 26, 2013 - October 27, 2013, Wuhan, China
Zhang S.
收藏  |  浏览/下载：15/0  |  提交时间：2014/05/15
The openloop liquid crystal adaptive optics for astronomical application 会议论文
6th IFAC Symposium on Mechatronic Systems, MECH 2013, April 10, 2013 - April 12, 2013, Hangzhou, China
作者:  Xuan L.;  Zhang X.
收藏  |  浏览/下载：16/0  |  提交时间：2014/05/15
Cache Performance Analysis based on the EDMA Transfer Chain 会议论文
Conference Location, 2013
作者:  Qu F.
收藏  |  浏览/下载：11/0  |  提交时间：2014/05/22
Saline-alkali land classification using MODIS data in Western Jilin Province, China 会议论文
Satellite Data Compression, Communications, and Processing IX, August 26, 2013 - August 27, 2013, San Diego, CA, United states
Gu L.; Ren R.; Cao J.; Sun J.
收藏  |  浏览/下载：8/0  |  提交时间：2014/05/15
Design and analyze of optical system for high-speed three-channel framing camera 会议论文
2013 2nd International Conference on Mechatronics and Control Engineering, ICMCE 2013, August 28, 2013 - August 29, 2013, Dalian, China
Liu C. Y.; Xu T. Q.; Xu Z.
收藏  |  浏览/下载：50/0  |  提交时间：2014/05/15
Computer-aided Alignment of off-axis three-mirror imaging spectrometer system 会议论文
Conference Location, 2013
Gong D.; Wang H.; Tian T. Y.
收藏  |  浏览/下载：23/0  |  提交时间：2014/05/22
Design of the real-time autofocusing system for collimator with long focus length and large aperture (EI CONFERENCE) 会议论文
2011 International Academic Conference on Numbers, Intelligence, Manufacturing Technology and Machinery Automation, MAMT 2011, December 24, 2011 - December 25, 2011, Wuhan, China
Li X.; Zhang X.
收藏  |  浏览/下载：34/0  |  提交时间：2013/03/25
Large aperture collimator which has been widely used for calibrating and testing various optical devices plays an essential role in correlative laboratories. As being the basic testing and calibration equipment  the large aperture collimator's accuracy should be much higher than the device under testing in order to ensure the accuracy of the measurement. However  the process of adjusting the collimator is extremely complicated due to the collimator's large aperture and long focal length. So it is difficult to ensure the measurement's quality and easy to cause the system being vulnerable to the surrounding environment. One of the most common problems is defocus. In order to solve the problem above  this issue presents a new type of autocollimator autofocusing system which uses pentaprism instead of using large-aperture plane mirror  semiconductor lasers as light source and CCD sensor as receiver. The system is smaller  lighter  and more convenient when using. The computer simulation shows that the autofocusing system's resolution could reach the accuracy of 40m. If we use the relevant algorithms to execute the sub-pixel scanning  the resolution could reach the accuracy of 10m. It shows that the system could satisfy the required testing precision of testing large aperture optical device.  
Image mosaic technique based on the information of edge (EI CONFERENCE) 会议论文
2012 3rd International Conference on Digital Manufacturing and Automation, ICDMA 2012, July 31, 2012 - August 2, 2012, Guilin, Guangxi, China
Wu Z.-G.; Wang M.-J.; Wang Y.-Q.
收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25
Image mosaic is an important branch in the field of image processing. This paper designs and realizes an image mosaic technique based on the information of edge. The technology is suitable for engineering application. First of all  two images of the adjoining frames are processed by convolution operation  get the edge images. And then we cut edge image into pieces and compute their spatial frequency. According to the value of the spatial frequency select reasonable registration model group. We compute correlation strength and the value of movement offset which are the model group and the current frame edge image. We can complete image mosaic by them. We use video sequence which of the resolution is 1024 * 768 do the experiment. The results show that the method has good effect and strong adaptability. Algorithm is high efficiency which running time is 24 ms. It is suitable for real-time processing requirements of the application. This method is an effective mosaic technique which is suitable for engineering application. 2012 IEEE.  
Design of high speed and parallel compression system used in the big area CCD of high frame frequency (EI CONFERENCE) 会议论文
2011 International Conference on Precision Engineering and Non-Traditional Machining, PENTM 2011, December 9, 2011 - December 11, 2011, Xi'an, China
Liu Y.-Y.; Gao Y.-H.; Li G.-N.; Wang W.-H.; Zhang R.-F.; Jin L.-X.
收藏  |  浏览/下载：47/0  |  提交时间：2013/03/25
According to the area CCD camera of characteristics  such as high resolution capacity and high frame frequency  this paper puts forward a high speed and parallel image compression system of high integration degree. Firstly  according to the work principle of the area CCD  FPGA is adopted to realize the timing driving and multichannel and parallel analog signal handling to raise the export frame frequency of the area CCD. Secondly  with an image compression scheme based on FPGA embedded processor MicroBlaze and ADV212 compression chip  real time image compression and the high speed area CCD are realized. Finally  by detecting the analog signal of the area CCD output  the real time compression of the big area CCD image is carried out in different compression ratios and the compression performance is analyzed. Experiment result shows that this scheme can realize real time image compression with the biggest data rate of 520Mbps. When compression bit ratio is 0.15  the signal-to-noise ratio of peak value can reach 36 dB. Image collection and image compression are integrated  which reduces the data transmission between them and improves systematic integration degree.  

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