Hi!
I'm testing the accuracy of the photogrammetry process. So I use GCP and check point (CP). When I use only GCP the aerial triangulation's error is not relevant and the result is good but when i use GCP and CP the CP's error is higher than GCP's error. My goal is obtain two similar error as I got with other commercial software. Maybe I did some mistakes.
How is it possible?
TEST1
SW 1) GCP error XY -Z (0.050m - 0.070m); CP error XY -Z(0.067m - 0.054m)
SW 2) GCP error XY -Z (0.037 0.040) CP error XY -Z(0.050m - 0.047m)
SW 3) GCP error XY -Z (0.049 0.021) CP error XY -Z(0.056m - 0.059m)
ContextCapture 4) GCP error XY -Z (0.016 0.006) CP error XY -Z(0.167m - 0.288m)
Thanks.
Maria Grazia Spera
I've noticed this too. As you have shown, you expect CPs to have greater error than GCP's but not as much as they seem to end up with in Context Capture. We use Pix4D and Context Capture.
You can import Check Point to your projects, but please do not using AT,it's only for check.