• What size do April Tags need to be?

    I created a project. I went to Tools and saw that April tags need to be at least 35x35 pixels. If I am flying a job with a Phantom 4 RTK at an altitude of 71m AGL that gives me a GSD if 1.95 cm/px If we calculate that out to 35px by 35px that gives us…
  • VLP-16 LIDAR with KAARTA integration into Context Capture

    My school is undergoing a campus modeling project and we only have a cheap VLP-16 LIDAR puck scanner that we have been able to use and process through KAARTA. Because of the minimalistic setup, there is no GPS on the unit and no geographical reference…
  • Why does my focal length change for the same camera in different photogroup?

    I'm using Sony A7R II with 28mm lens and I'm curious why my focal length change slightly? it's a prime lens and manufacturer spec says it's 28mm and the aero-triangulation optimized the focal length in the range of 27.13mm - 27.20mm for different photogroups…
  • Control Points - ContextCapture

    I need to introduce Control Points in ContextCapture. How I can import a list of coordinates X,Y,Z from .txt file?