The invention discloses a
geological disaster hidden danger recognition method fusing
phase gradient constraint and multi-mode enhancement, and relates to the technical field of
synthetic aperture radar interferometry and
geological disaster monitoring. The method comprises the steps that S1, a multi-temporal SAR image is preprocessed, interference is eliminated, a deformation related
data field is generated, and a core phase
information field is reserved; s2, constructing a multi-
modal feature and physical reliability weight map based on the processed image data, and realizing
weak signal enhancement and unreliable data screening; s3, constructing a weighted feature space based on the multi-
modal features and the weight map, and screening candidate hidden danger areas through
standardization and adaptive density clustering; s4, rejecting and screening false positive areas of the candidate hidden danger areas through three-level
verification; and S5, optimizing the region boundary and quantifying the risk, and outputting a standardized result. The whole process is connected in series through physical constraints, manual sample labeling is not needed, the
false alarm rate is remarkably reduced,
weak signal recognition is enhanced, and accurate
technical support is provided for
geological disaster prevention and control.