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面积数据是各类资源调查的重要内容之一,遥感图象面积量测也是遥感工作者较重视的课题。各类遥感图象或多或少存在一定的畸变。为了保证遥感量测面积数据符合所要求的精度,通常采用的方法有:①对图象进行几何校正后量测面积;②量测原始图象面积,根据成象特点及其他因素对结果作适当的改正。国土卫星图象也存在一定的畸变。为了提高国土
Area data is one of the important contents of all kinds of resource surveys. Remote sensing image area measurement is also a topic that remote sensing workers pay more attention to. All kinds of remote sensing images have more or less certain distortion. In order to ensure the remote sensing area measurement data in line with the required accuracy, the commonly used methods are: ① geometric correction of the image measurement area; ② measurement of the original image area, based on imaging characteristics and other factors appropriate to the results Correction. Land satellite images also have some distortion. In order to improve the territory