Dear Pix4D team,
Could you help me with the following:
Source data: FullHD footage (about 1500 images) taken from onboard of aircraft.
Goal: identify the trajectory of the aircraft by using Pix4D.
Issue: source images contains areas without any useful data for analysis: the clouds and parts of aircraft with sunlight reflection.
Problem: After Step 1 I saw that some calibrated Cameras are in wrong positions, but Pix4D consider them as calibrated. I want to redo Step 1 with masks for each Image. I created grayscale PNG mask images for each frame (Rotoscope mask in Blender). How I can apply them as the mask for Step 1? Or should I add alpha channel in the source images?
Additional data: I read some articles about Pix4D image annotation feature, but the problem is that “The Image Annotation feature is available only if step 1. Initial Processing has been completed.”, but I not satisfied with Step 1 result and I want to apply mask on Step 1 in order to exclude inapplicable images area from analysis.
Additional data: real aircraft tracjectory avalable from GPS for results comparison.