High-precision displacement map generation method, high-precision displacement map generator, and high-precision displacement map generation program

摘要

PROBLEM TO BE SOLVED: To improve the accuracy of an original displacement map. A high-precision displacement map generation method is acquired by survey information including a survey coordinate value, an altitude value, and a survey displacement measured at at least one survey location, and an interference type composite aperture radar (interference SAR). , The process of accepting the original displacement map including the SAR coordinate value and the SAR displacement in the predetermined area including the survey location; the error between the surveyed displacement of the survey information and the SAR displacement of the original displacement map is calculated and interpolated. It includes a step of generating an error map by processing; a step of correcting the original displacement map using the error map; and a step of outputting the corrected displacement map as a high-precision displacement map. [Selection diagram] Fig. 2