Analysis of the purpose and significance of aerial triangulation

Provide azimuth control points and photo azimuth parameters for mapping topographic maps.

Determination of unified coordinates of large-scale boundary points

Calculation of coordinates of a large number of ground points in element model

Analysis of close-range photogrammetry and non-terrain photogrammetry

Meaning:

Its position can be determined without touching the measured object, and its position and geometry can be determined without touching the measured object.

Can quickly and simultaneously carry out large-scale point measurement.

, to save the workload of field measurement, to save the workload of field measurement.

Not limited by visibility conditions.

In photogrammetry adjustment, the accuracy in the area is uniform, and in photogrammetry adjustment, the accuracy in the area is uniform, which is not limited by the size of the area.