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长春光学精密机械... [100]

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限定条件	专题：长春光学精密机械与物理研究所第一署名单位第一作者单位通讯作者单位

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	A Mixed Property-Based Automatic Shadow Detection Approach for VHR Multispectral Remote Sensing Images 期刊论文 APPLIED SCIENCES-BASEL, 2018, 卷号: 8, 期号: 10, 页码: 28 作者: Wen, Ming; Lan, Taiji; Li, Xiangzhi; Huang, Liang; Hu, Changhong 收藏 \| 浏览/下载：30/0 \| 提交时间：2019/08/26 invariant color space multispectral images shadow detection shadow omission threshold vegetation misclassification very high-resolution
	Application of interferometry measurement in large-scale optic-electrical theodolite (EI CONFERENCE) 会议论文 2012 International Conference on Sensors, Measurement and Intelligent Materials, ICSMIM 2012, December 26, 2012 - December 27, 2012, Guilin, China Zhao N.; Sun Z. 收藏 \| 浏览/下载：23/0 \| 提交时间：2013/03/25 Interferometry is a very important method in high accuracy measurement for optical system. This article briefly introduced the conception of interferometry and took a product of 4D Technology as an example to carry on the measurement. A large-scale optic-electrical Theodolite in assemblage was measured and its primary mirror was 400mm in diameter. With the analysis of the results some micro adjustments of the mechanical structure proceed and it made the system perform better. The final results of the whole system is 1.061 in P-V value and 0.1136 in RMS value (=632.8nm) this meets the demand of optical design and practical application. The result demonstrates that interferometry is a good way to be utilized and optimize in the procedure of assemble. (2013) Trans Tech Publications Switzerland.
	Research on the key technology of ATP system for free space optical communication (EI CONFERENCE) 会议论文 31st Chinese Control Conference, CCC 2012, July 25, 2012 - July 27, 2012, Hefei, China Meng H.; Liu X.; Zhang B. 收藏 \| 浏览/下载：12/0 \| 提交时间：2013/03/25 Free space optical communication is the bidirectional transmission technology that puts to use the laser beam as a carrier in space. Free space optical communication is generally used in the severe space environment. It is the mainly problem that the narrow beam of laser beam is high-precision aimed. and it is became very important that the technology of ATP is researched. Performance of the ATP system directly affects the performance of the quality of the free space optical communication. So research of the ATP is the key technology in FSO and this technology is discussed and analysed in the article. 2012 Chinese Assoc of Automati.
	The linear detection of glass feet billet based on Sobel (EI CONFERENCE) 会议论文 2012 International Conference on Computer Science and Information Processing, CSIP 2012, August 24, 2012 - August 26, 2012, Xi'an, Shaanxi, China Li Y.; Jie L. 收藏 \| 浏览/下载：19/0 \| 提交时间：2013/03/25 In the process of producing glass feet billet how to detect the qualification of the products has became an important part. For this situation this paper designs a detection system of the linear of glass feet billet. In this system first make Sobel edge detection to the images from the camera. Then this paper proposes a dynamic threshold segmentation method this method can draw the upper edge curve of the glass feet billet quickly and accurately. This method can detect the qualification of the products very accurate. This system has been successfully applied to the products site. 2012 IEEE.
	The application of symmetrical equation of diffracted wavevectors in integral theory of gratings (EI CONFERENCE) 会议论文 2nd International Conference on Advanced Engineering Materials and Technology, AEMT 2012, July 6, 2012 - July 8, 2012, Zhuhai, China Gao J.; Zhang F. 收藏 \| 浏览/下载：14/0 \| 提交时间：2013/03/25 The integral theory for electromagnetic theory of gratings which has complex mathematical tool and long computation cost is needed to improve computing speed of the algorithm. A very shot-cut equation which is called symmetrical equation of diffracted wavevectors by us is presented. It makes the number of Green's function expansion terms shorter and simplifies the integral kernel by taking into account its symmetry. Take the grating in Littrow mount for computing example because of applying this equation the computation cost of integral theory which has good convergence is shorten to 1/2 to 2/5. This work modifies the integral theory and improves its computing speed. (2012) Trans Tech Publications Switzerland.
	A new low-bandwidth and wireless transmission scheme for CCd image (EI CONFERENCE) 会议论文 2012 International Symposium on Photonics and Optoelectronics, SOPO 2012, May 21, 2012 - May 23, 2012, Shanghai, China An Z.; Zhang Y.; Zhou G.; Gu W. 收藏 \| 浏览/下载：26/0 \| 提交时间：2013/03/25 The CCD (Charge-coupled Device) image sensor with its high resolution is capable of providing high definition image. However transmission requires high bandwidth which makes it very difficult to process and transmit in a long distance. The purpose of this paper is to propose a new method to process and transmit CCD image which can guarantee a low-bandwidth and long-distance data transmission. The innovation is that the transmission content of CCD image data can be flexibly selected and compressed firstly which will reduce the transmission data. Then it is processed on the base of communication protocol so that it can be fit for wireless transmission. At last it is transformed into wireless signal and transmitted using 3G technology. As a result the paper presents a wireless transmission scheme with the rate of 1.5Mbps for CCD image. 2012 IEEE.
	Thermal-optical analysis for optical window under high Mach flight condition (EI CONFERENCE) 会议论文 2012 International Conference on Optoelectronics and Microelectronics, ICOM 2012, August 23, 2012 - August 25, 2012, Changchun, China Zhong C.; Ding Y.; Fu J. 收藏 \| 浏览/下载：15/0 \| 提交时间：2013/03/25 When the airborne platform where installed the optical window is in high Mach flight condition. The aerodynamic heating effect which will influence optical properties of optical window becomes very obvious. This special flight condition will change shape refractive index and also refractive index distribution of optical window due to the generated high axial temperature gradient. To ensure image quality of aerial remote sensor the present paper does thermal-optical analysis for optical window under high Mach flight condition. Then on this basis do simulations according to theoretical analysis and boundary conditions derived from practical assumptions in order to get the final conclusions. 2012 IEEE.
	Nanoscale patterns made by using a 13.5-nm Schwarzschild objective and a laser produced plasma source (EI CONFERENCE) 会议论文 Optical Micro- and Nanometrology IV, April 16, 2012 - April 18, 2012, Brussels, Belgium Wang Z.; Wang X.; Mu B.; Bai Y. 收藏 \| 浏览/下载：31/0 \| 提交时间：2013/03/25 Lithium fluoride (LiF) crystal is a very promising candidate as nanometer resolution EUV and soft X-ray detector. Compared with other EUV and soft X-ray detectors charge coupled device and photographic films LiF crystal has high resolution large field of view and wide dynamic range. In this paper using LiF crystal as EUV detector and a Schwarzschild objective (SO) working at 13.5nm as projection optics mesh images with 4.2 m 1.2 m and 800 nm line width and pinhole patterns with 1.5m diameter are acquired in projection imaging mode and direct writing mode respectively. Fluorescence intensity profiles of images show that the resolution of mesh image is 900 nm and the one of pinhole image is 800 nm. In the experiments a spherical condense mirror based on normal incidence type is used to eliminate the damage and contamination on the masks (mesh and pinhole) caused by the laser plasma and the energy density is not decreased compared with that the masks are close to the plasma. The development of the SO the alignment of the objective and the imaging experiments are also reported. 2012 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
	The load analysis of chisel-edge ruling tool for diffraction gratings (EI CONFERENCE) 会议论文 2012 International Applied Mechanics, Mechatronics Automation Symposium, IAMMAS 2012, September 7, 2012 - September 9, 2012, Shenyang, Liaoning, China li G.; Jirigalantu; zhang f. 收藏 \| 浏览/下载：15/0 \| 提交时间：2013/03/25 The process of wear design on chisel-edge ruling tool of diffraction gratings is very complex because of following two reasons that one is the load distribution on minute edge area when grating ruling and the other is the anisotropic character of natural diamond. The former is the first step when wear design on chisel-edge ruling tool of diffraction grating In order to predicate the load distribution on minute edge area of tool this paper simulated the load distribution on minute edge area of tool by software when ruling on Aluminum-1100 with tabular data format flow stress and Aluminum-1100 with Power law flow stress respectively and through comparative analysis determined the approximate load distribution on minute edge area of chisel-edge ruling tool that the high load mainly focused on the edge area close to the tip of ruling tool and amount to 200MPa while about to 100MPa on the face of tool. (2012) Trans Tech Publications Switzerland.
	The fuzzy comprehensive evaluation of laser weapon system combat effectiveness (EI CONFERENCE) 会议论文 2012 3rd International Conference on Mechanical, Industrial, and Manufacturing Technologies, MIMT 2012, March 24, 2012 - March 25, 2012, Shenzhen, China Li H.; Guo L. 收藏 \| 浏览/下载：13/0 \| 提交时间：2013/03/25 To evaluate the laser weapon system's combat effectiveness which is related with so many factors is a very complex issue. In this paper by analyzing the factors which influence the laser weapon system an index system for the laser weapon system comprehensive evaluation of the combat effectiveness is built up. The method of calculating weight the improved analytic hierarchy process is introduced. The evaluation model of improved fuzzy-AHP is established and the feasibility and the validity of the proposed evaluation method is validated through a practical example. (2012) Trans Tech Publications Switzerland.

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