Holographic analysis of body deformations

A general theory of holographic strain analysis is developed along with methods of determination of the sensitivity vectors directly from holograms. Several of the existing techniques of holographic displacement measurement are discussed using unified notation and their experimental reliability compared in various test situations. To aid in the analysis and data reduction, computer programs were developed to solve the governing equations of the theory of homogenous body deformations as well as the governing equations of the various techniques of holographic displacement measurements. The theory was applied in clinical orthodontics where the ability to predict the movement of a tooth under the influence of external forces is the basic problem. The results presented show that the holographic technique of rigid body motions and strain analysis is very accurate and reliable. This technique can be applied to the analysis of any kind of an arbitrary three-dimensional object and the developed computer programs used to reduce experimental data.