Decompress depth and depth confidence

[Yang-Li-2000]

How can I decompress depth and depth confidence files with .zlib suffixes?

[SamMaoYS]

Hi @Yang-Li-2000, to decompress the depth and confidence .zlib files, you can use this script server/scripts/depth_decode.py.

This script decompress the depth and confidence streams to png image files. For example, you can use the script with command:

python depth_decode.py -in path/to/scanID.depth.zlib -in_confi path/to/scanID.confidence.zlib -o ./depth -o_confi ./confidence -TH 0 -L 0 -M 0 --format .png

where -TH is the depth delta threshold for consecutive depth frames, -L is the confidence threshold for depth maps, -M is the output mode, 0 mode is output raw decompressed data, 1 mode for output color mapped images
You can find more information in the descriptions for each argument in the script.

If you have the processing server pipeline setup, you can use the scan processing script server/scan_processor.py to get the RGB and depth maps described in the paper, where the depth map is preprocessed to keep only the high confident depth values:

python scan_processor.py process.input_path=path/to/scan_folder  process.overwrite=false process.actions='[convert]'

Thank you for your interest.

All the best,
Yongsen Mao