Patent US 4,091,374

A method for pictorially displaying output information generated in the form of an electrical signal by an apparatus for imaging an object which includes a first display means for visually displaying a working image of the object and a second display means for visually displaying an orientation image of the object. The orientation image is obtained by varying the operating parameters of the apparatus and is displayed simultaneously with the working image. The improvement of the invention comprises the steps of generating the orientation image once, storing the orientation image in an image storage means, and then reproducing the orientation image from the generated image stored in the image storage means.