Research on the Method of Shallow Sea Bottom Topography Extraction Based on Satellite Imagery
Abstract：To accurately extract shallow sea bottom topography information, this paper introduces the relevant content of satellite imagery inversion for shallow water depth, analyzes the mechanism of water depth inversion using satellite multispectral imagery, the basic principle of dual-medium stereo photogrammetry, and the workflow of satellite multispectral water depth inversion. It proposes a method for extracting shallow sea bottom topography based on satellite imagery, which includes multisatellite spectral imagery water depth measurement, refraction correction of shallow sea bottom topography positioning points, and shallow sea bottom topography extraction based on rigorous image-object geometric relationships. To verify the effectiveness of the method, the extraction of the seabed topographic map in the experimental area was carried out, and the experimental steps and results were analyzed in detail. The study shows that this method can accurately extract shallow sea bottom topography information, providing support for marine scientific research, resource exploration, and engineering applications.
Keywords：Satellite imageryShallow sea bottom topographyRigorous image-object geometric relationship
Publication Date：2025-05-25
Pages：3( 52-54 )