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	A line mapping based automatic registration algorithm of infrared and visible images 会议论文 OAI收割 5th International Symposium on Photoelectronic Detection and Imaging (ISPDI) - Infrared Imaging and Applications, Beijing, June 25-27, 2013 作者: Ai R(艾锐); Shi ZL(史泽林); Xu DJ(徐德江); Zhang CS(张程硕) 收藏 \| 浏览/下载：35/0 \| 提交时间：2013/12/26 There exist complex gray mapping relationships among infrared and visible images because of the different imaging mechanisms. The difficulty of infrared and visible image registration is to find a reasonable similarity definition. In this paper, we develop a novel image similarity called implicit linesegment similarity(ILS) and a registration algorithm of infrared and visible images based on ILS. Essentially, the algorithm achieves image registration by aligning the corresponding line segment features in two images. First, we extract line segment features and record their coordinate positions in one of the images, and map these line segments into the second image based on the geometric transformation model. Then we iteratively maximize the degree of similarity between the line segment features and correspondence regions in the second image to obtain the model parameters. The advantage of doing this is no need directly measuring the gray similarity between the two images. We adopt a multi-resolution analysis method to calculate the model parameters from coarse to fine on Gaussian scale space. The geometric transformation parameters are finally obtained by the improved Powell algorithm. Comparative experiments demonstrate that the proposed algorithm can effectively achieve the automatic registration for infrared and visible images, and under considerable accuracy it makes a more significant improvement on computational efficiency and anti-noise ability than previously proposed algorithms.
	Pentalysine beta-Carbonylphthalocyanine Zinc: An Effective Tumor-Targeting Photosensitizer for Photodynamic Therapy 期刊论文 OAI收割 Chemmedchem, 2010, 卷号: 5, 期号: 6, 页码: 890-898 Z. Chen, S. Y. Zhou, J. C. Chen, Y. C. Deng, Z. P. Luo, H. W. Chen, M. R. Hamblin and M. D. Huang 收藏 \| 浏览/下载：23/0 \| 提交时间：2012/11/02 cancer cytotoxicity pharmacokinetics photodynamic therapy synthesis disulfonated aluminum phthalocyanine mitochondria-dependent apoptosis intensity laser therapy chinese-hamster cells biological-activities photochemical properties different mechanisms cancer series photofrin
	Study on the influence and disposal method of the micro-cracks of optical components (EI CONFERENCE) 会议论文 OAI收割 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China 作者: Xuan B. 收藏 \| 浏览/下载：24/0 \| 提交时间：2013/03/25 Micro-crack is one of the most effective factor to the intensity and service life of optical components. Owing to the micro-crack on surface actual strength of optical components is reduced severely even less than ten-percent of its theoretical strength. According to fracture mechanics the mechanisms of the formation and propagation of micro-crack and the growth theory of sub-critical micro-crack are discussed in the paper firstly. Based on practice an on-line test method disposing etching holes-the molecule-infiltrating method and the principles of acid-etching method disposing micro-crack are described. Followed by the demolishing mechanism of abrasives and a more reasonable removal redundancy of fine-grinding and polishing during optical production is given by using abrasives in different-size orderly. 2009 SPIE.
	An approach for synthesizing nanometer- to micrometer-sized silver nanoplates 期刊论文 OAI收割 colloids and surfaces a-physicochemical and engineering aspects, 2007, 卷号: 303, 期号: 3, 页码: 226-234 Zou XQ; Ying EB; Chen HJ; Dong SJ 收藏 \| 浏览/下载：159/29 \| 提交时间：2010/07/13 SURFACE-ENHANCED RAMAN OPTICAL-PROPERTIES METAL NANOPARTICLES PLASMON RESONANCES CHEMICAL-SYNTHESIS DIFFERENT SHAPES GOLD NANODISKS NANOSPHERES MECHANISMS
	Optical fiber transmission of Q-switdied Nd:YAG pulses of 10MW peak power: Mechanism of damage to the fiber (EI CONFERENCE) 会议论文 OAI收割 2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies - Advanced Optical Manufacturing and Testing Technologies, November 2, 2005 - November 5, 2005, Xian, China 作者: Wang L.; Zhang Y.; Chen W.; Tang Y.; Wang L. 收藏 \| 浏览/下载：29/0 \| 提交时间：2013/03/25 This paper presents theoretical analysis and experiment results of four different fibers transmitting 10MW peak power Nd: YAG laser pulse. The main factors limiting to optical fiber transmission of high power laser pulse is pointed including air breakdown at focus area and surface damage of optical fiber. The theory of air breakdown and the fiber coupling conditions is described briefly. The results of study to the transmission properties and damage conditions are presented on the basis of four different types of optical fibers. The results of the experiments are further analyzed in the aspects of transmitting efficiency air breakdown and surface damage. The local and foreign optical fibers with plastic-cladding and silica-cladding and step- index and graded- index fibers are tested separately in the experiments. The experiments showed that the imported fibers are able to transmit up to 10MW peak power laser pulse with no any visible damage while energy density at the fiber output end surface is 3.54GW/cm2. For local fibers damage on the input surface of both plastic-cladding and silica-cladding step-index fibers was found obviously. The column damage to the graded index fiber was also found and investigated in the research. Damage mechanisms of fiber at high peak power laser pulses are summarized. High quality finishing of fiber end surface will improve damage threshold tremendously. The conclusion of the study is that transmitting Q-switched Nd:YAG pulses of 10MW peak power is feasible for the domestically made fibers if their end surfaces are properly processed.