I am using the zed2i as an outdoor measurement tool. I saw the depth accuracy is about 2%-5% when it comes to less than 10m. But when I use it as the measurement tool outdoor, I found the accuracy is quite bad when the distance from the camera is further than 6m.
Case 1. Distance: 9.3m. Traffic sign ground truth: 2.5m. Calculate from depth map: 6.06m. (very bad)
Case 2. Distance: 8.3m. Traffic sign ground truth: 2.5m. Calculate from depth map: 2.43m. (Good)
How I calculate the measurement: Euclidean distance formula.
Neural depth mode.
Resolution: both 2k and 1080 are the same.
Is this situation to be expected? How can I calculate the furthest working distance in this scenario?
Another screenshot is showing that the same height fence will give different height results.
Thanks for your suggestion.