Collision Prevention with PX4 using camera

I’m trying to implement Collision Prevention with Pixhawk 2.4.8 with px4 1.11.1 firmware flashed in it. I’m using realsense d435i camera with j****etson nano.[Collision Prevention | PX4 User Guide] as mentioned here i have changed all the param required but QGC mavlink inspector isn’t showing Obstacle Distance data. I am unable to find the exact issue. Please help

@baumanta Please help me out