Generate Orthophoto

Feature Description

Digital Orthophoto Map (DOM), referred to as orthophoto, is an image dataset generated by vertically projecting aerial or aerospace imagery of the Earth's surface. During the vertical projection process, the system eliminates geometric distortions caused by factors such as terrain undulations and camera tilt, giving the orthophoto uniform geometric accuracy. At the same time, orthophotos can be seamlessly overlaid with maps, vector data, etc., providing reliable support for precise spatial analysis and measurement. Generate orthophoto is the process of outputting these processed image datasets.

This function is only used for the generate orthophoto operation in the UAV data processing workflow.

SuperMap ImageX Pro Starting from the 2026 version.

Function Entry

UAV Data Processing Workflow tab -> Imagery group -> Generate Orthophoto.

Parameter description

Parameter Name parameter interpretation parameter type
Ground Resolution Sets the ground resolution of the resulting DOM, in m/px. The default value is 0. When the value is 0, it is automatically calculated. Double
Based on Best View

Specifies whether to use the Thiessen polygon (Voronoi) algorithm to automatically calculate the effective contribution area of each image.

  • Selected (default): For overlapping areas, select image pixels with the most nadir view and least feature occlusion to participate in the mosaic, eliminating ghosting and blurring.
  • Not selected: The entire rectangular area of each image participates in the mosaic, and overlapping areas are directly overlaid, which may easily cause ghosting and color misalignment, and is only suitable for single-image output or special research scenarios.
Boolean
Output format Sets the storage type of the result image. Provides four options: Not Set, Tiff/GeoTIFF, Erdas Image and PCIDSK. The default is Tiff/GeoTIFF, which means using the original storage type of the image for output. FileType
Compression method Available only when Output format is Tiff/GeoTIFF. The default is NONE. For more method introductions, please refer to Compression method. CompressMethod

Output Result

Result orthophoto image data.

Related Topics

Generate Connection Points

Aerial Triangulation

Generate DSM

Image Uniform Color

Image Mosaic