MEASURING METHOD AND APPARATUS

摘要

Measurement of the shape, location, and density of a hidden object is provided by passing energy such as X-rays through the object in two mutually angulated directions and measuring the changes in energy. The measured changes in the two directions are then combined to reconstruct the shape of the hidden object. Details of a number of reconstruction techniques are set forth. There is disclosed a reconstruction by hand; the basis for reconstruction by a general purpose computer; a special purpose computer for shape reconstruction; and an alternative solution which may be by hand or by computer.