@SMRazaRizvi ,
Please see the following post that answers your question : https://forum.modalai.com/topic/2551/add-mask-file-to-qvio-algorithm .
Specifically, you would need to add the name of the static mask file here (ideally full path of the file) : https://gitlab.com/voxl-public/voxl-sdk/services/voxl-qvio-server/-/blob/master/server/main.cpp?ref_type=heads#L384 (staticMaskFileName which is initialized to Null).
See the other thread for explanation what the mask format should be.