Land surveying and mapping information management method
The invention relates to the technical field of image processing, in particular to a land surveying and mapping information management method. According to the method, a hyperspectral remote sensing image is obtained, reference pixel points are obtained according to the similarity of curves in the i...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to the technical field of image processing, in particular to a land surveying and mapping information management method. According to the method, a hyperspectral remote sensing image is obtained, reference pixel points are obtained according to the similarity of curves in the image, a characteristic wave band is screened out according to the reference pixel points, and a distribution characteristic vector is obtained according to association between the characteristic wave band and a pixel point gray value; obtaining a texture feature value of a target pixel point and a neighborhood pixel point and a physical feature value between the neighborhood pixel points according to the spectral vector angle difference between the pixel points, obtaining a texture feature value according to the direction change of a feature wave band in the spectral vector of the pixel point, and obtaining a texture feature vector composed of the texture feature value; and finally, classification is carried out th |
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