Adam Technology technology in the 21st century commercialization and engineering application of new technology, mainly used in measurement, geological catalog, deformation monitoring, special industry (such as volume change calculation, electronic restoration, etc.,), its basic principle and aerial technology, from two different parts of the object of a pair of ordinary digital photos, and then mathematical calculation, get the object of 3 d form of digital information, synthetic 3 d photos.The digital results can obtain accurate coordinates and azimuth information, and the data-3 D photos can obtain the position, yield, length and spatial distribution of the structural surface.High-quality 3 D photos can accurately obtain surface coordinate information, so they can be used for topographic measurement and volume calculation; using photos taken at different times to obtain the position change of the observation site, the object deformation can be monitored.