机构

• 遥感与数字地球研究所 [3]
• 云南天文台 [2]
• 长春光学精密机械与物... [1]

采集方式

• OAI收割 [6]

内容类型

• 会议论文 [6]

发表日期

• 2017 [2]
• 2010 [1]
• 2008 [2]
• 2006 [1]

学科主题

• 天文学 [2]
• 天文学::太阳与太阳... [1]

筛选

浏览/检索结果: 共6条，第1-6条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Relative Phase Asynchrony and Long-range Correlation of Long-term Solar Magnetic Activity 会议论文  OAI收割 Hong Kong, PEOPLES R CHINA, 2017-05-19 作者:  Deng LH(邓林华)   |  收藏  |  浏览/下载：31/0  |  提交时间：2017/10/23 Statistical Signal Processing  Long-range Correlation  Wavelet Transform  Recurrence Plot Analysis   Multi-scale signal transform and application of solar time series through phase analysis 会议论文  OAI收割 9th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2016, Datong, China, 2016-10-15 作者:  Deng LH(邓林华) 收藏  |  浏览/下载：22/0  |  提交时间：2017/04/28 statistical signal processing  time-frequency data analysis  wavelet coherence transform   Identification of structural vector autoregrssive model based on time series chain graphs 会议论文  OAI收割 2010 3rd International Congress on Image and Signal Processing, CISP 2010,, Yantai, China, October 16, 2010 - October 18,2010 Wei, Yuesong; Tian, Zheng; Chen, Zhanshou; Leng, Chengcai 收藏  |  浏览/下载：15/0  |  提交时间：2014/12/07 Graphic methods  Signal processing  Statistical tests  Time series  Value engineering  Vectors   Automatic relative radiometric normalization algorithm based on pseudoinvariant neighborhood 会议论文  OAI收割 1st International Congress on Image and Signal Processing, CISP 2008,, Sanya, Hainan, China, May 27, 2008 - May 30,2008 Xiaolian, Deng; Changyao, Wang; Bangjun, Lei 收藏  |  浏览/下载：11/0  |  提交时间：2014/12/07 Radiometry  Algorithms  Food processing  Image enhancement  Image matching  Image reconstruction  Regression analysis  Remote sensing  Signal processing  Space optics  Statistical methods   Lifting wavelet-based two-dimensional scalar field simulation for underwater navigation application 会议论文  OAI收割 1st International Congress on Image and Signal Processing, CISP 2008,, Sanya, Hainan, China, May 27, 2008 - May 30,2008 Lin, Yi; Liu, Yuefeng; Yan, Lei; Tong, Qingxi 收藏  |  浏览/下载：16/0  |  提交时间：2014/12/07 Navigation  Conformal mapping  High energy physics  Maps  Navigation charts  Signal processing  Statistical methods  Two dimensional   CR image filter methods research based on wavelet-domain hidden markov models (EI CONFERENCE) 会议论文  OAI收割 ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China 作者:  Wang J.-L.;  Wang J.-L.;  Li D.-Y.;  Wang Y.-P. 收藏  |  浏览/下载：18/0  |  提交时间：2013/03/25 In the procedure of computed radiography imaging  we should firstly get across the characters of kinds of noises and the relationship between the image signals and noises. Based on the specialties of computed radiography (CR) images and medical image processing  we have study the filtering methods for computed radiography images noises. On the base of analyzing computed radiography imaging system in detail  the author think that the major two noises are Gaussian white noise and Poisson noise. Then  the different relationship of between two kinds of noises and signal were studied completely. By considering both the characteristics of computed radiography images and the statistical features of wavelet transformed images  a multiscale image filtering algorithm  which based on two-state hidden markov model (HMM) and mixture Gaussian statistical model  has been used to decrease the Gaussian white noise in computed images. By using EM (Expectation Maximization) algorithm to estimate noise coefficients in each scale and obtain power spectrum matrix  then this carried through the syncretized two Filter that are IIR(infinite impulse response) Wiener Filter and HMM  according to scale size  and achieve the experiments as well as the comparison with other denoising methods were presented at last.