Fig. 9
From: Simple evaluation of the degradation state of cultural heritage based on multi-view stereo
Displacement map between the Wareishi Rock Cliff Sculpture and the replica. Ortho-image facing to the replica. Red represents more than 3 mm of the detected displacement, and green represents less than 3 mm of the detected displacement. a (pink line): The upper line of the present alga lushness area. b (blue line): The upper line of the alga lushness area in 1986 (Lines “a” and “b” were drawn by the same person based on the naked eye observation.)