Prodn. of tomographic pictures without blurred shadows - uses set of pictures taken from different directions to form correction picture

摘要

The tomographic pictures for different depths are produced by superposition of shifted primary pictures. Tomographic pictures so obtained are shifted and superposed, and the superposed picture is used for production of a correction picture. The method consists of the following steps: tomographic pictures are shifted w.r.t. each other in accordance with the geometric conditions during a primary picture talking, and superposed on each otherso obtained and the corresponding primary picture are subtracted from each other in order to obtain a correction picture primary pictureon the tomographic picture with the same shift and the same, or slightly reduced, relative amplitude as the corresponding primary picture.