What I am planning to do is to calculate the height and estimate the slope of the segmented Object. The camera will be static and the Object of Interest is the slope of the beach. I am finding harder to use depth camera, as the minimum distance between slope and camera is 150 meters.
I have tried Unet Semantic Segmentation with two classes i.e. background and sand surface. After semantic segmentation what i left with is the sand surface, but i am struggling to find slope height; as one out of many options that i have tried is to run canny filter on 2D image and convert the segmented sand surface into 3D, but the distance between camera and sand surface is around 200 meters, therefore i am reluctant to use any of the 3D reconstruction approach.
And also i am not sure of any depth cameras which can cover up to 200 meters of range. Please see the attached Picture for more information. If you require more information please let me know, :) Thanks for your help !!!.