中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共9条，第1-9条

帮助

条数/页：排序方式：
	A unified consistent source term computational algorithm for the gamma-based compressible multi-fluid flow model 期刊论文 OAI收割 COMPUTERS & FLUIDS, 2023, 卷号: 259, 页码: 105899 作者: Li, Ge; Li, Libin; Liu, Qingquan; Feng C(冯春); Wang, Xiaoliang \| 收藏 \| 浏览/下载：42/0 \| 提交时间：2023/06/15 Compressible multi-fluid flow Consistent algorithm One-fluid preservation Moving interface Interface sharpening
	A New Context Tree Inference Algorithm for Variable Length Markov Chain Model with Applications to Biological Sequence Analyses 期刊论文 OAI收割 JOURNAL OF COMPUTATIONAL BIOLOGY, 2022, 页码: 18 作者: An, Shaokun; Ren, Jie; Sun, Fengzhu; Wan, Lin \| 收藏 \| 浏览/下载：60/0 \| 提交时间：2022/06/21 biological sequence analyses consistent context algorithm variable length Markov chains word count statistics
	Quasi-consistent fusion navigation algorithm for DSS 期刊论文 OAI收割 SCIENCE CHINA-INFORMATION SCIENCES, 2018, 卷号: 61, 期号: 1, 页码: 17 作者: Su, Qiya; Huang, Yi; Jiang, Yanguang; Fang, Haitao \| 收藏 \| 浏览/下载：50/0 \| 提交时间：2018/07/30 quasi-consistent extended Kalman filter (QCEKF) extended Kalman filter (EKF) fusion algorithm navigation distributed satellites system (DSS)
	Generation of a time-consistent land surface temperature product from MODIS data SCI/SSCI论文 OAI收割 2014 作者: Wu H. 收藏 \| 浏览/下载：54/0 \| 提交时间：2014/12/24 Land surface temperature MODIS MSG-SEVIRI Time-consistent Temporal normalization split-window algorithm atmospheric correction longwave radiation diurnal cycles emissivity validation avhrr satellite seviri
	Design of image nonuniformity correction and real-time record for CMOS camera (EI CONFERENCE) 会议论文 OAI收割 9th International Conference on Electronic Measurement and Instruments, ICEMI 2009, August 16, 2009 - August 19, 2009, Beijing, China Huilong Y.; Xin H.; Zhonghui W.; Donghe W. 收藏 \| 浏览/下载：36/0 \| 提交时间：2013/03/25 A configurable record capacity extensible and nonuniformity reducible of high speed camera is designed in this paper. The CMOS image sensor lupa-300 which is produced by Cypress Corporation is used for the system. There is nonuniformity existed in the sensor. The two point method of the image with real time correction algorithm has applied to process the image nonuniformity. Then the corrected image is storied into the NandFlash array. To improve the record speed and extend record capacity the pipelining and parallel bus mechanism is adopted. The experiment which is based on hardware platform indicates the camera can take about 250f/s at a resolution of 640*480 the consistent storage speed is up to 614.4 Mb/s consistent transmit from flash to Camera Link speed up to 1.093Gb/s.The system record time is up to 18.6 minutes. 2009 IEEE.
	Assessment of color image fusion algorithms based on quaternion singular value decomposition (EI CONFERENCE) 会议论文 OAI收割 MIPPR 2009 - Remote Sensing and GIS Data Processing and Other Applications: 6th International Symposium on Multispectral Image Processing and Pattern Recognition, October 30, 2009 - November 1, 2009, Yichang, China 作者: Wang Y.; Wang Y.; Wang Y.; Wang Y.; Wang Y. 收藏 \| 浏览/下载：35/0 \| 提交时间：2013/03/25 In this paper a new approach to objectively assess the performance of image fusion algorithms is proposed. It is based on the quaternion representation for the structural information of color images. Quaternions are used to encode the pixels of a color image into a quaternion matrix. Local variance of the luminance layer of color image is taken as the real part of a quaternion then the three RGB channels of the color image are encoded into the three imaginary parts of the quaternion. The angle between the singular value feature vectors of the quaternion matrices corresponding to the source image and the fused image is used to measure the structural similarity of them. Different weight is given to the source images by using variance. The experiment results show that the proposed assessment method is consistent with the HVS. The color information of a color image can be fully used by this method. It can give an accurate assessment result for each fusion algorithm by using the source images and the fused image. 2009 Copyright SPIE - The International Society for Optical Engineering.
	Test of an off-axis asphere by subaperture stitching interferometry (EI CONFERENCE) 会议论文 OAI收割 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 19, 2008 - November 21, 2008, Chengdu, China 作者: Zheng L.-G.; Zhang X.-J.; Zhang Z.-Y.; Zhang Z.-Y.; Deng W.-J. 收藏 \| 浏览/下载：77/0 \| 提交时间：2013/03/25 A new method combined subaperture stitching with interferometry(SSI) is introduced. It can test large and off-axis aspheric surfaces without the aid of other null optics. In this paper the basic principle and theory of the technique are analyzed. The synthetical optimization stitching model and effective stitching algorithm are established based on homogeneous coordinates transformation and simultaneous least-squares method. The software of SSI is devised and the prototype for testing of large aspheres by SSI is designed and developed. An off-axis asphere with the aperture of 376mm188mm is tested by this method. For comparison and validation and the difference of PV and RMS error between them is 0.047 e and 0.006 e the asphere is also tested by null compensation.The synthesized surface profile is consistent to that ofthe entire surface from null test respectively. So it provides another quantitative measurement for testing large aspheric surfaces and off-axis aspheres besides null-compensation. 2009 SPIE.
	Annular sub-aperture stitching interferometry for testing of large asphreical surfaces (EI CONFERENCE) 会议论文 OAI收割 International Symposium on Photoelectronic Detection and Imaging, ISPDI 2007: Optoelectronic System Design, Manufacturing, and Testings, September 9, 2007 - September 12, 2007, Beijing, China 作者: Zheng L.-G.; Zhang X.-J.; Deng W.-J.; Wang X.-K. 收藏 \| 浏览/下载：90/0 \| 提交时间：2013/03/25 Annular subaperture stitching interferometric technology can test large-aperture and the PV and RMS of residual error of the full aperture phase distribution is 0.027 and 0.0023 high numerical aperture aspheric surfaces with high resolution the relative error of PV and RMS is -0.53% and -0.31% respectively. The results conclude that this splicing model and algorithm are accurate and feasible. So it provides another quantitive measurement for test aspheric surfaces especially for large aperture aspheres besides null-compensation. low cost and high efficiency without auxiliary null optics. In this paper the basic principle and theory of the stitching method are introduced the reasonable mathematical model and effective splicing algorithm are established based on simultaneous least-squares method and Zernike polynomial fitting. The translation errors are eliminated from each subaperture through the synthetical optimization stitching mode it keeps the error from transmitting and accumulating. The numerical simulations have been carried on by this method. As results the surface map of the full aperture after stitching is consistent to the input surface map the difference of PV error and RMS error between them is -0.0074 and -0.00052 ( is 632.8nm) respectively
	Structural-Analysis of Differential-Algebraic Equation Systems - Theory and Applications 期刊论文 OAI收割 Computers & Chemical Engineering, 1995, 卷号: 19, 期号: 8, 页码: 867-882 Unger J; Kroner A; Marquardt W \| 收藏 \| 浏览/下载：36/0 \| 提交时间：2010/05/13 CHEMICAL PROCESS SYSTEMS CONSISTENT INITIALIZATION DYNAMIC SIMULATION INDEX ANALYSIS ALGORITHM