Photographic image registration

Claim 1

IN AN AUTOMATIC REGISTRATION INSTRUMENTS, A PAIR OF SCANNER MEANS FOR USE IN RESPECTIVELY SCANNING A PAIR OF IMAGES, A PAIR OF DETECTION SYSTEMS RESPECTIVELY ARRANGED WITH SAID SCANNER MEANS FOR RECEIVING THE SCANNING BEAMS THEREFORM AS SUCH BEAMS ARE RESPECTIVELY MODULATED BY SUCH IMAGES AND FOR RESPECTIVELY DEVELOPING ELECTRICAL SIGNALS IN RESPONSE THERETO, A PAIR OF VIEWING MEANS RESPECTIVELY CONNECTED WITH SAID DETECTION SYSTEMS FOR RECEIVING SUCH SIGNALS THEREFROM AND FOR DEVELOPING IN RESPONSE THERETO REPRODUCTIONS OF THE RESPECTIVE IMAGES, A RASTER GENERATOR FOR DEVELOPING THE RASTERS FOR EACH OF SAID SCANNER MEANS AND ALSO SAID VIEWING MEANS A CORRELATION SYSTEM FOR SENSING ANY MIREGISTRATION BEWTEEN SUCH IMAGES AND FOR DEVELOPING ERROR SIGNALS IN RESPONSE THERE TO, AND A TRANSFORMATION SYSTEM CONNECTED WITH SAID CORRELATION SYSTEM FOR TRANSFORMING THE RASTER OF ONE OF SAID SCANNER OR VIEWING MEANS IN RESPONSE TO SUCH ERROR SIGNALS TO EFFECT TRANSFORMATIONS OF THE RASTER OF SAID ONE SCANNER OF VIEWING MEANS AND THEREBY ACCOMPLISH REGISTRATION OF THE IMAGE REPRODUCTIONS DEVELOPED BY SAID VIEWING MEANS.