How to decode MS Mixed Reality headset IR camera signal

convert.py

#!/usr/bin/env python3

# v4l2-ctl --device /dev/video1 --stream-mmap --stream-to=frame.raw --stream-count=1

import numpy as np
import os
import cv2

fd = open('frame.raw', 'rb')
cols = int(1280)
rows = int(481)

f = np.fromfile(fd, dtype=np.int8,count=rows*cols)
im = f.reshape((rows, cols))
fd.close()

cv2.imshow('Yo', im)
cv2.waitKey()
cv2.destroyAllWindows()

cv2.imwrite("frame.png", im)