What is the difference between TDOM and DOM?

Mar 22, 2022

TDOM is called true projection image, which eliminates the projection error of the building, and only the top of the building can be seen, and there will be no occlusion between buildings. DOM is called orthophoto. It does not eliminate the projection error of the building. The building is inverted, and it often happens that high-rise buildings cover low-rise buildings.

The applications of TDOM and DOM are similar, mainly in agricultural surveys, forest surveys, environmental monitoring, land planning, transportation, urban management, real estate, navigation and other fields. TDOM production costs are high, and during the production process, the image ground resolution loss is large. The TDOM ground resolution produced by the same original image is not as high as DOM, so in practical applications, DOM is mostly used.

The black hole image is not repaired with the oblique image and the TDOM image after the oblique image is repaired.

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