The purpose of this report is to observe the internal structure of old scluptures and to measure the sizes of the nails used inside, the analytical X-ray photogrammetry utilized in this report has been studied for about 24 years. At first, the relationship between the target of X-ray tube and the object and the relationship between the target of X-ray tube and the projected point on the X-ray film were discussed. Next, the relationship between the density of X-ray film and the thickness of the wood, the voltage, the electric current and the exposure time were investigated. From the analogy between the analytical photogrammetry and analytical X-ray photogrammetry, the algorithm of the analytical X-ray photogrammetry were derived. In this report, the application of analytical X-ray photgrammetry on the wooden Buddist such as AMIDA, JUNI-SHINSHO and BISHAMONTEN, FUDOMYOO etc. were investigated. And the merits of the analytical X-ray photogrammetry are described.
Dimensions of a facade of a wooden building were estimated by use of a single photograph. Some new attempts were carried out in the processes of orientation and dimension estimation. We can find many parallel lines, vertical lines, right angle corners, etc. at buildings. These conditions were used for orientation of a photograph. The necessary condition for dimension estimation was, therefore, one length at the object, only. Principal distance of a photograph was estimated using a condition which is inherent in the building. Not only the facade, the coordinates of some points on a plane perpendicular to the facade were also estimated.