[A new method for automatic analysis of scoliotic deformity].

The Moiré method has been widely used in mass school screening for early detection of scoliosis. A new type of automatic analyser for scoliosis, which is the conceptual heir of the Moiré method, was developed. This new apparatus consists of a slide projector, video camera and microcomputer system using the principle of three-dimensional robot vision technology. Using this new method, the measurement for one patient is done automatically in less than a half minute. A good correlation is noted between the degrees measured by the new method and Cobb angles on X-ray film. Results suggest the usefulness of this system for the mass screening of scoliosis and to judge the effects of treatment.