排序方式： 共有26条查询结果，搜索用时 31 毫秒
1.
GeoMDIS2000、Surfer、PGDB1.0、MAPGIS等软件在物化探数据处理与成图方面各有所长,生产中经常将这几类软件结合起来使用。在数据转换过程中会遇到统一色库的问题,本文着重介绍了通过修改软件内部色库相应色标的RGB值(或CMYK值)的办法来解决此问题,并达到了事半功倍的效果。 相似文献
2.
数字图像处理在道路交通数据采集中的应用研究 总被引：1，自引：0，他引：1
主要研究数字图像处理技术在MDCS中对于交通标志信息自动识别的应用，通过多级图像提取和多种特征识别和匹配算法，提高交通标志识别的准确率，从而大大提高交通标志数据的采集和更新周期。 相似文献
3.
有色示踪剂在溶质运移实验中的数字图像识别和处理 总被引：3，自引：0，他引：3
文章介绍了不同浓度高锰酸钾溶液的数字图像RGB识别方法,并将此方法运用到标准砂介质中高锰酸钾溶液浓度的拟合识别。在实验后期,提出了用高斯模板进行数字图像平滑处理来获得更精确的实验数据。本实验为砂柱溶质运移实验提供了一种简便而有效的溶质浓度测量方法。 相似文献
4.
The post depositional thermal maturity and its related chemical changes induce the sporomorphs color alteration, which is a common useful tool in the optical microscopy of the organic matters (OM) and their pre-geochemical studies. The present contribution uses the modern available opportunity of digital technology to achieve a quantifying system technique, which includes color measurements and their possible graphic presentation. The normal digital images of sporomorphs from several ages and geological settings are used to obtain color measurements in the form of digital Red, Green and Blue triple color system (RGB). These measurements were accomplished using some software programs such as Photoshop™© or ImageJ with employing average microscope setup. The triple RGB color readings are plotted on a ternary diagram, which is divided into three fields. These fields express the maturity levels. The presented new RGB-based quantifying technique is economic and provides a simple examination for maturity, which is linked to the hydrocarbon generation. This can partially replace or walk side by side with the vitrinite reflectance microscopy. 相似文献
5.
Xiang-Jun Lai Yan Li National Astronomical Observatories/ Yunnan Observatory Chinese Academy of Sciences Kunming China Key Laboratory for the Structure Evolution of Celestial Objects China Graduate University of Chinese Academy of Sciences Beijing China. 《中国天文和天体物理学报》2011,(10)
Based on the turbulent convection model (TCM) of Li & Yang, we have studied the characteristics of turbulent convection in the envelopes of 2 and 5M⊙ stars at the red giant branch and asymptotic giant branch phases. The TCM has been successfully applied over the entire convective envelopes, including the convective unstable zone and the overshooting regions. We find that the convective motions become progressively stronger when the stellar models are located farther up along the Hayashi line. In the convect... 相似文献
6.
采用遥感技术对矿区生态环境进行动态监测,对于人类健康和资源合理开发利用具有重要意义。本文以临沂苍峄矿区为研究区,采用多时相Landsat TM/ETM+/OLI遥感影像,运用单波段法、谱间关系法、水体指数法等多种方法提取水体信息。在此基础上提出一种新的水体变化信息提取流程,即运用RGB彩色合成法对不同时相影像进行合成,根据不同色调反映像元的不同变化趋势,发现并提取变化信息,实现了矿区水体信息的变化监测。 相似文献
7.
基于出版的地图符号库系统的建立 总被引：2，自引：1，他引：2
提出并解决了基于出版的地图符号库需要解决的关键技术：符号制作软件的设计、符号与属性库的连接、RGB色彩到CMYK色彩的转换、基于出版的地图符号分层、PS文件的生成；在此基础上论述了全数字出版系统中建立地图符号库系统的方法。 相似文献
8.
9.
Remote sensing has proved to be a powerful resource in geology capable of delineating target exploration areas for several deposit types. Only recently, these methodologies have been used for the detection of lithium (Li)-bearing pegmatites. This happened because of the growing importance and demand of Li for the construction of Li-ion batteries for electric cars. The objective of this study was to develop innovative and effective remote sensing methodologies capable of identifying Li-pegmatites through alteration mapping and through the direct identification of Li-bearing minerals. For that, cloud free Landsat-5, Landsat-8, Sentinel-2 and ASTER images with low vegetation coverage were used. The image processing methods included: RGB (red, green, blue) combinations, band ratios and selective principal component analysis (PCA). The study area of this work is the Fregeneda (Salamanca, Spain)-Almendra (Vila Nova de Foz Côa, Portugal) region, where different known types of Li-pegmatites have been mapped. This study proposes new RGB combinations, band ratios and subsets for selective PCA capable of differentiating the spectral signatures of the Li-bearing pegmatites from the spectral signatures of the host rocks. The potential and limitations of the methodologies proposed are discussed, but overall there is a great potential for the identification of Li-bearing pegmatites using remote sensing. The results obtained could be improved using sensors with a better spatial and spectral resolution. 相似文献
10.
分通道影像配准误差分析 总被引：2，自引：1，他引：1
为了保证CCD航测相机高几何分辨率和彩色成像两大特性,设计了一种"3 1"CCD航测相机成像模型,即采用3个独立光学系统的面阵CCD记录R、G、B分波段影像,和1路光学系统的单个大面阵CCD记录全色波段影像,重点分析了这种成像模型在同一曝光时刻所得的R、G、B分通道影像之间同名像点相对移位误差及对后续影像处理的影响,得到了一些有益的结论. 相似文献