Boundaries in the radiographic image. II. Principles for the representation of the object as boundary circuits in the...

The interpretation of images is mostly performed by effective intuitive mechanisms in the visual system. These mechanisms are well adapted for the interpretation of ordinary images but less capable of interpreting radiographic images. These contain boundaries of a type not found in ordinary images. The interpretive mechanism cannot utilize them and so a large part of the information contained in radiographic boundaries is not utilized. A simple analysis has been made of the geometric relations between the shape of an object and the boundaries in the radiographic image. These relationships are simple and regular. A knowledge of them enables a more complete extraction of the information contained in the boundaries.