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Density functional study on chirospectra of bruguierols 期刊论文  OAI收割
Acta Physica Sinica, 2011, 卷号: 60, 期号: 4
C. Y. Mang; G. Z. Gou; C. P. Liu; K. C. Wu
收藏  |  浏览/下载:32/0  |  提交时间:2012/06/06
Fast color-transfer-based image fusion method for merging infrared and visible images (EI CONFERENCE) 会议论文  OAI收割
Multisensor, Multisource Information Fusion: Architectures, Algorithms, and Applications 2010, April 7, 2010 - April 8, 2010, Orlando, FL, United states
作者:  
Xu S.
收藏  |  浏览/下载:27/0  |  提交时间:2013/03/25
We present a computationally efficient color image fusion algorithm for merging infrared and visible images. At the core of the proposed method is the color transfer technique based on the linear YCBCR space. The method directly uses the grayscale fused image and the difference signals of the input images to construct the source YCBCR components  then uses the statistical color transfer technique to form a color fused image that takes the target image's color characteristics. Two different strategies  which respectively employ the pixel averaging fusion scheme and the multiresolution fusion scheme as the grayscale image fusion solution  are proposed to fulfill different user needs. The simple strategy using the pixel averaging fusion scheme answers to a need of easy implementation and speed of use. And the complex strategy using the multiresolution fusion scheme answers to the high quality need of the fused products. In addition  we also describe some useful theories about color-transfer-based image fusion. Experimental results show that the proposed color image fusion algorithm can effectively produce a natural appearing "daytime-like" color fused image  and even using the pixel averaging fusion scheme to implement the grayscale fusion can also provide a pleasing result. 2010 Copyright SPIE - The International Society for Optical Engineering.  
First-principles determinations and investigations of the electronic absorption and third-order polarizability spectra of electron donor-acceptor chromophores tetraalkylammonium halide/carbon tetrabromide 期刊论文  OAI收割
Journal of Physical Chemistry A, 2007, 卷号: 111, 期号: 38, 页码: 9249-9254
J. Shen; W. D. Cheng; D. S. Wu; S. P. Huang; H. Hu; Z. Xie
收藏  |  浏览/下载:14/0  |  提交时间:2013/04/01
Research on the affect of differential-images technique to the resolution of infrared spatial camera (EI CONFERENCE) 会议论文  OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, July 8, 2007 - July 12, 2007, Chengdu, China
Jin G.; An Y.; Qi Y.; Hu F.
收藏  |  浏览/下载:17/0  |  提交时间:2013/03/25
The optical system of infrared spatial camera adopts bigger relative aperture and bigger pixel size on focal plane element. These make the system have bulky volume and low resolution. The potential of the optical systems can not be exerted adequately. So  one method for improving resolution of infrared spatial camera based on multi-frame difference-images is introduced in the dissertation. The method uses more than one detectors to acquire several difference images  and then reconstructs a new high-resolution image from these images through the relationship of pixel grey value. The technique of difference-images that uses more than two detectors is researched  and it can improve the resolution 2.5 times in theory. The relationship of pixel grey value between low-resolution difference-images and high-resolution image is found by analyzing the energy of CCD sampling  a general relationship between the enhanced times of the resolution of the detected figure with differential method and the least count of CCD that will be used to detect figure is given. Based on the research of theory  the implementation process of utilizing difference-images technique to improve the resolution of the figure was simulated used Matlab software by taking a personality image as the object  and the software can output the result as an image. The result gotten from the works we have finished proves that the technique is available in high-resolution image reconstruction. The resolution of infrared spatial camera can be improved evidently when holding the size of optical structure or using big size detector by applying for difference image technique. So the technique has a high value in optical remote fields.  
Nationwide aerosol optical thickness retrieval application using grid computing platform 会议论文  OAI收割
Igarss: 2007 Ieee International Geoscience and Remote Sensing Symposium, Vols 1-12: Sensing and Understanding Our Planet, New York
Wei, Wan; Xue, Yong; Luo, Ying; Guo, Jianping; Zhang, Lei; Bai, Linyan; Guang, Jie; Wei, Wei
收藏  |  浏览/下载:18/0  |  提交时间:2014/12/07
Recursive algorithm for phase retrieval in the fractional Fourier transform domain 期刊论文  OAI收割
APPLIED OPTICS, 1998, 卷号: 37, 期号: 29, 页码: 6906
Cong, WX; Chen, NX; Gu, BY
收藏  |  浏览/下载:23/0  |  提交时间:2013/09/24