Semi-Supervised Building Extraction with Optical Flow Correction Based on Satellite Video Data in a Tsunami-Induced Disaster Scene.

However, for frame 439, the difference is greater than zero, suggesting a decreasing trend.

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Specifically, the comparing method is formulated, as Equation (6) shows. (6) F r a m e e r r o r = F r a m e m + 1 , i f S f m + 2 ≤ S f m F r a m e m , otherwise As Figure 4 demonstrates, when the area of buildings in the selected patch presents an increasing trend, the rules for determining the incorrect frame can also be divided into two categories, and the details are shown in Figure 6 .

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