Calculation method of urban impervious surface coverage
The invention discloses a method for calculating the coverage of an urban impervious surface. The method comprises the following steps: inputting a Landsat 5-TM remote sensing image subjected to geometric fine correction and radiation correction; selecting a wave band reflecting urban impervious sur...
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| creator | PENG GUANGXIONG PAN YONG ZHANG JIANDONG PAN XUEHUA WANG HUA LIU YAO LIU FENGNING ZHANG LIMEI ZHANG YANGYUAN WEN XIANHONG SHAN WENFA PAN LONGYING |
| description | The invention discloses a method for calculating the coverage of an urban impervious surface. The method comprises the following steps: inputting a Landsat 5-TM remote sensing image subjected to geometric fine correction and radiation correction; selecting a wave band reflecting urban impervious surface information from seven wave bands of the remote sensing image to perform principal component analysis, outputting four components, determining components reflecting an urban impervious surface, and constructing impervious factors; converting dark pixels reflecting urban impervious surface information in the impervious factors into bright pixels; performing linear stretching of 0-255 gray level on the impervious factor; carrying out multiplication operation on the impervious factors subjected to linear stretching; and performing normalization processing on a multiplication result to obtain the urban impervious surface coverage. The method for calculating the coverage of the urban impervious surface has the adva |
| format | Patent |
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The method comprises the following steps: inputting a Landsat 5-TM remote sensing image subjected to geometric fine correction and radiation correction; selecting a wave band reflecting urban impervious surface information from seven wave bands of the remote sensing image to perform principal component analysis, outputting four components, determining components reflecting an urban impervious surface, and constructing impervious factors; converting dark pixels reflecting urban impervious surface information in the impervious factors into bright pixels; performing linear stretching of 0-255 gray level on the impervious factor; carrying out multiplication operation on the impervious factors subjected to linear stretching; and performing normalization processing on a multiplication result to obtain the urban impervious surface coverage. 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| subjects | CALCULATING COMPUTING COUNTING HANDLING RECORD CARRIERS PHYSICS PRESENTATION OF DATA RECOGNITION OF DATA RECORD CARRIERS |
| title | Calculation method of urban impervious surface coverage |
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