Does it make sense to capture a few precision UAV images as air control points?

[lemieszek]

Hi all,

I have a set of 4k images from an urban area that I've captured with my reliable little Spark (long story). Its GPS precision is quite low (though I have corrected the heights using EXIFTOOL). I have 9 GCPs and they're ok, but this is a huge area - 600 hectares, or 1500 acres, so more precision would be welcome.

I have an Anafi that stores ASL height and much more precise GPS points. I cannot redo the whole area with it for several reasons. But would it make sense to capture a sample of pictures with it over key points of the area and then use them as references with higher precision than my Spark photos? Say, 10m for the Anafi pictures and 30m for the Spark photos.

Will that help or worsen my final product?

Thanks!