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	From Heuristic Optimization to Dictionary Learning: A Review and Comprehensive Comparison of Image Denoising Algorithms 期刊论文 OAI收割 ieee transactions on cybernetics, 2014, 卷号: 44, 期号: 7, 页码: 1001-1013 作者: Shao, Ling; Yan, Ruomei; Li, Xuelong; Liu, Yan 收藏 \| 浏览/下载：59/0 \| 提交时间：2015/03/18 Adaptive filters dictionary learning evaluation image denoising sparse coding spatial domain survey transform domain
	Terahertz FSS for space borne passive remote sensing application 期刊论文 OAI收割 ELECTRONICS LETTERS, 2013, 卷号: 49, 期号: 22, 页码: 1398-1399 作者: Xia, Bu Gang; Zhang, De Hai; Meng, Jin; Huang, Jian; Yao, Chang Fei 收藏 \| 浏览/下载：54/0 \| 提交时间：2014/05/04 aerospace instrumentation antenna arrays circular waveguides electromagnetic wave polarisation frequency selective surfaces geophysical equipment radiometers receiving antennas remote sensing resonators spatial filters submillimetre wave devices terahertz wave devices terahertz metamaterials frequency 0 1 THz to 0 5 THz Earth observation radiometers space-borne passive remote sensing application scanning antenna split ring resonator subwavelength circular ring micromachined metallic pattern periodic aperture unit cells ultra-thin high conductivity aluminium layer quartz wafer FSS array incident angle variation polarisation variation high sensitivity receiver spatial filtering front-end terahertz FSS metamaterial terahertz frequency selective surface
	A new spaceborne compression approach for remote sensing imagery (EI CONFERENCE) 会议论文 OAI收割 ICO20: Remote Sensing and Infrared Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China 作者: Xu S. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 After analyzing advantages and disadvantages of these typical encoding methods: SPIHT and VQ a "DWT+MRLE" approach for spaceborne data compression was proposed in this paper. This approach includes two steps: Discrete Wavelet Transform (DWT) and Modified Run Length Encoding (MRLE). The former used CDF9/7 biorthogonal wavelet filters to powerfully get rid of correlation between pixels in imagery. The later put enlightening information into the lowest bit of some key-position transform coefficients. Consequently CDF9/7 and MRLE together make hardware platform remain high real-time capability and help reconstructed images keep good fidelity with PSNR being about 40dB compared with the original ones. Comparison between experimentations on SPOT4's low-spatial-resolution (10m) imagery and Ikonos2's high-spatial-resolution (1m) imagery shows this "DWT+MRLE" method having better performance for remote-sensed imagery especially those of higher resolution. Although inferior to 8:1 Compression Ration (CR) here near 5:1 is greater than France SPOT5's 3:1 and American Ikonos2's 11:2.6 on-board data compression. More important this method having less computational amount is good for spaceborne capability of real time. The consumed time of different image size is also presented in this paper based on TI TMSC6416 DSP chip with 600MHz CPU cycle clock.
	Laser beam automatic alignment in multipass amplifier 期刊论文 OAI收割 opt. eng., 2004, 卷号: 43, 期号: 9, 页码: 2066, 2070 Liu DZ; 朱健强; Xu RF; 范滇元收藏 \| 浏览/下载：1210/310 \| 提交时间：2009/09/18 beams alignment amplifiers spatial filters SG-III
	Personal identification based on iris texture analysis 期刊论文 OAI收割 IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE, 2003, 卷号: 25, 期号: 12, 页码: 1519-1533 作者: Ma, L; Tan, T; Wang, YH; Zhang, DX 收藏 \| 浏览/下载：44/0 \| 提交时间：2015/11/08 iris recognition image quality assessment multichannel spatial filters texture analysis biometrics