Annotation method based on monolithic InSAR (interferometric synthetic aperture radar) orthophoto

The invention discloses an annotation method based on a monolithic InSAR orthophoto. The method comprises the following steps: 1, acquiring the monolithic InSAR orthophoto; 2, annotating based on the monolithic InSAR orthophoto according to the following annotation processes: 201, establishing a ground object characteristic database of the InSAR orthophoto, 202, carrying out indoor interpretation: determining and positioning ground objects according to the ground object characteristic database of the InSAR orthophoto, 203, carrying out outdoor check, 204, carrying out annotation and supplement measure on a shadow region and a layover region, 205, carrying out annotation and supplement measure on new added ground objects and concealed ground objects, and 206, carrying out indoor data processing; and 3, carrying out junction processing. The annotation method which has the advantages of reasonable design, simple step, convenient realization, good usage effect, and high annotation precision allows practical problems that present fully digital aerophotogrammetry systems and annotation methods cannot satisfy annotation needs of the InSAR orthophoto, the annotation effect of the monolithic InSAR orthophoto is bad, technical advantages of an InSAR cannot fully performed and the like to be solved.