Figures 1 and 3 show reconstructions of archaeological trenches from Bruszczewo, Poland, and Priene, Turkey, respectively. In real scenes, one cannot compare depth maps because of the missing ground truth information. However, since both reconstructions were transformed into the coordinate system used at the excavation site, we can compare the Euclidean distances between known points. These encompass the distances between the photogrammetric points and the sizes of measuring sticks. The distances were identified manually in each model, and the absolute measurement
error in mm was determined by comparing it with the known true values. For both reconstructions the errors were in about the same order of magnitude, except for a larger set of outliers in the Bruszczewo scene.