Hi All - I was wondering if anyone can suggest the best method for characterizing a model's accuracy in terms of real units (e.g. meters)? Thinking through this problem, it seems to be that using a calibrated scale bar (with targets) might offer the best reading of overall model accuracy since the target centers can be located with high precision. GCPs set with a total station or GPS will likely have errors larger than a cm or more, so these can't be used to understand model accuracy below this level. I don't know how well the scale bar error characterizes the accuracy across the whole model though, since they will only be a small part of the overall model.
I've wondered if the reprojection RMS error (pixels) can somehow can be converted to real world units? If I were to take the average RMS reprojection pixel error and multiply it by the ground resolution, would that give an approximation of the average error in real units?
Topic: Characterize Model Accuracy in Real World Units? (Read 1206 times)
