I have known how to use rs2_deproject_pixel_to_point() , but I have some questions about rs2_project_point_to_pixel( ).
rs2_project_point_to_pixel(intrinsics, [x, x, x]) works in my python program and it returns a pixel coordinate. Here is the question ,what is the unit of the point coordinate [x,x,x]? meter? centimetre？or millimetre？
Thank you for your help !!