We are planning to build an orthomap and a 3D model from a Cliff with vertical walls and other areas with the terrain with variations till the top. The issue is that the area is quite wide, and we will need to perform several flights.
We have found in the forum these suggestions:
But we have some questions regarding the final resolution of the models:
- If we fly at different heights, then the built 3D model and orthomap, which is the final resolution ? Reading seems that is a median, but we need to have a realistic result to make precise measurements.
- In the flight plan, we are planning to do a general plane on top, and then to perform closer flights. Is it ok with this strategy to build up the models, later on?
- Another question is the angle difference among images, for example, in the general plane gimbal might be 90-60 degrees respect horizontal, but in the cliff might be at 0 degrees. Is this an issue for Pix4D ?