## video convert
# ffmpeg -i excavator_work.MOV -codec copy excavator_work.mp4

## colmap pre-porcess
python nerfstudio/scripts/process_data.py video \
--data /home/worker/yt/autocon/dataset/exp/input_smartphone/site1_column.mp4 \
--output-dir /home/worker/yt/autocon/dataset/site1_column \
--num_frames_target 400 \
--num_downscales 0