Slope unit division method based on multi-scale image segmentation
An image segmentation, multi-scale technology, applied in the direction of resources, instruments, computer parts, etc., can solve the problems of unreasonable long strips, lack of unified standards, and small broken surfaces in the catchment area, and achieve high reliability. , the effect of high division accuracy
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[0051] Such as figure 1 Shown is a schematic flow chart of the method of the present invention: the slope unit division method based on multi-scale image segmentation provided by the present invention includes the following steps:
[0052] S1. Obtain the slope aspect layer based on the digital elevation model; specifically, based on the digital elevation model, the slope aspect layer is obtained through ArcGIS pre-processing, so as to automatically divide the data set of the slope unit;
[0053] S2. According to the slope layer data obtained in step S1, the unit vector in the X-axis direction and the unit vector in the Y-axis direction are calculated, and the unit vector in the X-axis direction and the unit vector in the Y-axis direction are used as the main division for dividing the slope unit layer; specifically, converting the slope aspect layer data obtained in step S1 into radian slope aspect data, and then performing trigonometric function calculations to obtain the unit...
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