zed2i Angle conversion, depth map

Hello, I want to use zed2i camera to do a reverse perspective projection transformation, get the top view, and generate the depth map in the top view. Can I use the library that comes with zed to do this? What do I need to do?
The installation position of the camera is not overlooking the ground, but has a included Angle. I need to use the program to make the camera’s Angle look down at the ground, and output the top-down image and depth map.

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