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With the increasing of mining depth, the surface and underground geological conditions have undergone great changes. The updating investigations mostly depend on the conventional means which has constrained the mine production on in-depth understanding of the geological terrain. So it is urgent to carry out the research work. The use of remote sensing techniques and auxiliary data to carry out the...
The paper first gives an effective integration on high resolution RS image and multi-spectral RS data on the basis of RS image geometric correction, image mosaic and subset; then introduces many kinds of vegetation indices such as NDVI, PVI, RVI, SAVI, GVI, DVI and so on, and analyses the characteristic of vegetation indices, builds normalized difference vegetation index (NDVI) of study area; later...
The Wenchuan earthquake was a destructive earthquake that measured at 7.9 Mw occurred at 14:28:01.42 CST on May 12, 2008 in Sichuan province of China, which induced large quantities of secondary mountain disasters such as collapse, landslides, debris flows and barrier lakes. These disasters occurred and more seriously formed disaster chains causing great destruction, and costing many lives after both...
Based on image registration principle of the feature point, this article brings forward methods of a combination of Moravec and Forstner operator, extracts feature points in the base image making use of sequential detection algorithm from coarse to fine, and realizes automatic matching of the same name point in the pending registration images through the geometric distance constraint conditions. After...
In this paper, efforts were made to merge SPOT5 panchromatic image with multispectral images using six different data fusion algorithms, which were Hue-Intensity-Saturation(HIS), Principle Component Analysis(PCA), Kauth-Thomax (K-T) transform, Linear-weighted transform, Brovey fusion and Wavelet transform fusion. We evaluated the fusion images in both subjective and objective factors. The research...
Image fusion techniques can improve the quality, and increase the application of satellite images. The wavelet transforms provides a preeminent approach for the improvement of the spatial resolution with minimal distortion of the spectral content of the source image. Three types of wavelet bases and four types of wavelet transforms are used to perform the fusion between MODIS and NOAA images. The...
Extracting landuse information from Beijing-1 micro satellite images in Longqiao town, Chengdu city, China is discussed here. Firstly, the images are geometrically corrected and registered by several ground control points. Secondly, the images such as panchromatic band with the resolution of 4 meters and multi-spectral band with the resolution of 32 meters are enhanced and fused. Thirdly, the Maximum...
Land cover classification is conducted using the panchromatic and multi-spectral data of Beijing-1 small satellite data in the western part of Xuzhou coal mining area. Firstly, fusion images obtained from different pixel fusion methods are used to land cover classification using SVM classifier. Secondly, feature level fusion is implemented by extracting texture information from panchromatic data and...
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