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• 金属研究所 [1]
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• OAI收割 [14]

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浏览/检索结果: 共14条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Hyperspectral characteristics and leaf area index monitoring of rice (Oryza sativa L.) under carbon dioxide concentration enrichment 期刊论文  OAI收割 SPECTROSCOPY LETTERS, 2021, 卷号: 54, 期号: 3, 页码: 231-243 作者:  Liu, Chao;  Hu, Zhenghua;  Kong, Rui;  Yu, Lingfei;  Wang, Yuanyuan   |  收藏  |  浏览/下载：17/0  |  提交时间：2023/02/24 Carbon dioxide enrichment  inversion model  leaf area index  rice  spectral parameter   Deciphering the archaeological record: Cosmological imprints of nonminimal dark sectors 期刊论文  OAI收割 PHYSICAL REVIEW D, 2020, 卷号: 101, 期号: 12, 页码: 123511 作者:  Dienes, Keith R.;  Huang, Fei;  Kost, Jeff;  Su, Shufang;  Thomas, Brooks   |  收藏  |  浏览/下载：27/0  |  提交时间：2020/11/26 SPECTRAL DISTORTIONS  PARAMETER-ESTIMATION  MATTER  MODELS  THERMALIZATION  CONSTRAINTS  UNIVERSE   An evolutionary power spectrum model of fully nonstationary seismic ground motion 期刊论文  OAI收割 SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, 2018, 卷号: 105, 页码: 1-10 作者:  Wang D;  Fan ZL;  Hao SW(郝圣旺);  Zhao DH   |  收藏  |  浏览/下载：93/0  |  提交时间：2018/10/30 Evolutionary power spectral density  Seismic ground motion  Nonstationarity  Parameter identification  Generalized harmonic wavelets   Self-weighted spectral clustering, with parameter-free constraint 期刊论文  OAI收割 neurocomputing, 2017, 卷号: 241, 页码: 164-170 作者:  Zhang, Rui;  Nie, Feiping;  Li, Xuelong 收藏  |  浏览/下载：34/0  |  提交时间：2017/05/25 Constrained spectral clustering  Parameter-free similarity  Quadratic weighted optimization   How to Estimate the Regularization Parameter for Spectral Regression Discriminant Analysis and its Kernel Version? 期刊论文  OAI收割 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 2014, 卷号: 24, 期号: 2, 页码: 211-223 作者:  Gui, Jie;  Sun, Zhenan;  Cheng, Jun;  Ji, Shuiwang;  Wu, Xindong 收藏  |  浏览/下载：25/0  |  提交时间：2015/08/12 Kernel methods  perturbation linear discriminant analysis  regularization parameter estimation  spectral regression discriminant analysis   Research on the thermal shifts and electron-phonon coupling parameters of R-line for Cr3+ and Mn4+ ions in YAlO3 crystals 期刊论文  OAI收割 Journal of Luminescence, 2013, 卷号: 138, 页码: 214-217 W. C. Zheng; B. X. Li; G. Y. Feng; H. G. Liu 收藏  |  浏览/下载：37/0  |  提交时间：2013/12/24 Luminescence  Thermal shift  Electron-phonon coupling parameter  Cr3+  Mn4+  YAlO3  temperature-dependence  single-crystals  spectral-lines  energy-levels  high-pressure  nd3+ ions  excitation  linewidths  centers   Electro-optical imaging system identification using pseudo-random binary pattern (EI CONFERENCE) 会议论文  OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China Le Y.; Jian W.; Jianzhong Z.; Qiang S.; Jianzhuo L. 收藏  |  浏览/下载：23/0  |  提交时间：2013/03/25 A method using pseudo-random binary pattern is developed for electro-optical imaging system identification. The imaging system is taken as a stable  linear  time-invariant  and causal filter  and its transfer function is measured through the pseudo-random binary sequence impulse responses identification. A digital mirror device (DMD) light projector is developed as the target generator  and wavelet thresholding is used to denoise the captured image. Pre-filtering spectral estimation algorithm with adaptive parameter selection is also proposed for the identification process  overcoming the challenge brought by the size limit derived from the optical isoplantic region. Simulations and experiments are presented to show the effectiveness of the proposed method.0-64. 2010 IEEE.   Modulation transfer function measurement of sampled imaging systems in field test (EI CONFERENCE) 会议论文  OAI收割 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China 作者:  Yang L.;  Zhang J.;  Zhang J.;  Zhang J.;  Wang J. 收藏  |  浏览/下载：30/0  |  提交时间：2013/03/25 A digital mirror device (DMD) based light projector was developed as the target generator in modulation transfer function (MTF) measurement. In order to overcome the sampling-scene phase effect in MTF measurement of sampled imaging systems  a method using random targets is introduced to yield a phase-averaged MTF. The main potential problem of implementing this method is the fact that the stationary assumption of the random targets may be vitiated in practical measurement  especially in field test due to the ill condition. We provide an efficient model-independent way of analyzing and isolating the spectral contents arising from these additional contributions to MTF measurement. Algorithms with adaptive parameter selection were also developed for spectral estimation of the test image in order to overcome the challenge brought by the size limit of the test matrices for one certain field of view derived from the isoplantic region. The MTF measurement of a CCD video imager is used to demonstrate the measurement technique and illustrate the benefits over other methods. In order to validate the results  comparisons have been made between MTF measurements of imager implemented using this method and bar target direct measurements. 2010 Copyright SPIE - The International Society for Optical Engineering.   Anomalous spectral behavior of vectorial apertured ultrashort pulsed beams beyond the paraxial approximation 期刊论文  OAI收割 optics communications, 2008, 卷号: 281, 期号: 4, 页码: 521-526 作者:  Yang, Yuanjle;  Duan, Kailiang;  Li, Yude 收藏  |  浏览/下载：24/0  |  提交时间：2011/09/30 vectorial nonparaxial ultrashort pulse  spectral switch  circular aperture  vector Rayleigh diffraction integrals  f-parameter   Improved best tradeoff for high-resolution image fusion based on spectral reflection function 会议论文  OAI收割 International Conference on Earth Observation Data Processing and Analysis, ICEODPA,, Wuhan, China, December 28, 2008 - December 30,2008 Wang, Zhongwu; Zhao, Zhongming 收藏  |  浏览/下载：26/0  |  提交时间：2014/12/07 This paper extended the best tradeoff fast intensity-hue-saturation (BTFIHS) fusion to a more general model. Firstly  based-on the methods proposed by previous researches  we integrated injecting strategy of spatial detail information into the fusion model and also adopted the idea of BTFIHS to keep the intensity unchanged with the corresponding pixel in panchromatic (PAN) image  while the hue and saturation of every pixel using BTFIHS were equal to them using tradeoff fast intensity-hue-saturation (TFIHS). Then we got a general formula of the improved best tradeoff for high-resolution image fusion based-on getting injecting parameter by spectral reflection function (SRF). At last  several experiments were carried on to analysis and discuss the quality of the new methods compared with their originals. Results show that the new method could yield a "true" high-resolution multispectral (MS) image  with vast improvement in blue band and nearly 3.3% improvement in Q4 for all bands. 2008 SPIE.