Though band ratio is highly evaluated as a single method in oil-gas exploration,the effect is far from satisfactory.
在基于单一方法进行油气勘探的过程中,前人对波段比值的方法给了很高的评价,但效果均不显著。
However,the rock texture can be enhanced by selecting band ratio and by using composite negative processing method based on DN value analysis of diff.
本文从统计、研究雪和岩石光谱特征曲线入手，结合研究区积雪对不同ＴＭ波段图像中地形响应的漫反射统计分析特点，采取波段比值＋假彩色合成图像求反处理的方法，有效地突出了不同岩性的纹理信息，达到了区分岩类的目的。
With the MODIS data from 2001 to 2005,areas of the tidal flats in the coastal zone of Fujian Province in China are calculated utilizing the band ratio of MODIS 250 m resolution of visible and near infrared band to high tidal level and low tidal level,and the results are verified by the 30 m resolution Landsat-7/ETM+ satellite image of the Luoyuan Bay and the Fuqing Bay.
以2001~2005年MODIS数据为信息源,每年选取高潮位和低潮位两个时相的MODIS数据,根据滩涂对MODIS 250 m分辨率可见光和近红外探测波数的光谱反应特性,采用波段比值算法来监测福建省海岸带的滩涂面积,并对监测结果用罗源湾和福清湾30 m分辨率的Landsat-7/ETM+影像进行验证分析,结果表明,MODIS数据的观测时间与海洋高低潮位时刻比较接近,便于对滩涂资源的遥感监测。
Study on a method of removal ECG baseline drift based on median filtering;
基于中值滤波的心电基线校正方法的研究
The technology about echo edge detection and median filtering on radar image;
雷达回波边缘检测和中值滤波技术
Classifying the stratums in the images from the geology radar sonde based on the BP neutral network and median filtering;
基于BP神经网络和中值滤波的地质雷达图像分类
Application of wavelet threshold denoising method in the fluorescence analysis of pesticides;
小波阈值去噪法在农药荧光分析中的应用
Analysis of selection rules of wavelet threshold in gravitational abnormal data processing;
海洋重力异常数据处理中小波阈值选择规则分析
Imaging restoration for sparse aperture optical systems based on wavelet threshold and Wiener filtering;
基于小波阈值法和维纳滤波的稀疏孔径光学系统成像的恢复
Comparison between simulative and recorded data of short-circuit current
短路电流仿真值与录波值的比对分析
carrier power output rating
载波功率输出额定值
virtual time to half-value
假设到半值时间 -冲击波
shock-layer approximation
激波层近似解法[近似值]
Two Dimensional Trigonomentric Wavelets for Hermite Interpolation;
Hermite插值型二维三角小波
The Method of Numerical Integration with Daubechies Wavelet;
数值积分的Daubechies小波方法
Median Filter Method and Average Value Filter Method in the Application of Bar Code Denoising;
中值滤波与均值滤波法在条形码去噪中的应用
Image Denoising Based on Wavelet Transform and Median Filter;
基于中值滤波和小波变换的图像去噪
VSP WAVE FIELD SEPARATION BY USING SECONDARY MEDIAN FILTER METHOD
二次中值滤波法进行VSP波场分离
Wavelet threshold-based sea clutter signal denoising
基于小波阈值算法的海杂波信号去噪
Cash Flow Volatility, Earning Volatility and Firm Value
现金流波动性、盈余波动性与企业价值
NUMERICAL MODEL OF WAVE DIFFRACTION FOR WAVE HEIGHT WITH NYSTROM METHOD
Nystrom法计算水波绕射波高的数值模型
Medical Image Denoising Based on Wavelet Soft Threshold Filting
基于小波软阈值滤波的医学图像去噪
Comparison of Non-Bayesian Wavelet Filtering Method and Research of Threshold Value Filtering Algorithm
小波非Bayesian滤波法比较及其阈值滤波算法研究
Improved adaptive filter based on extremum and mean
一种改进的极值均值自适应滤波算法
Using Modulus Maximum Pair of Wavelet Transform to Detect Spike Wave of Epileptic EEG
癫痫脑电棘波的小波变换模极大值对检测方法
Wavelet Transform and Fuzzy Median Filter for Image Edge Detection
基于小波变换和模糊中值滤波的图像边缘检测
The Study of Estimating Annual Extreme and Designing Wave in Beibu Gulf(Gulf of Tonkin)
北部湾年极值波浪与设计波浪估算的研究