The present invention relates to a river green tide figure estimating method using a nonlinear RANSAC method and satellite image data. The river green tide figure estimating method using a nonlinear RANSAC method and satellite image data according to an embodiment of the present invention includes the steps of: receiving a green tide figure and image of a specific basin (S100); correcting the distortion of the image received from a satellite (S200); extracting a quadratic function (S300); and estimating the green tide figure in the corresponding basin (S400). Therefore, the present invention can accurately estimate the green tide figure by using the nonlinear RANSAC method.
展开▼
