AUTOMATIC MAP COMPILATION SYSTEM

Abstract

An automatic map complication system, for deriving information from a pair of stereoscopic photographs by scanning portions thereof which represent homologous imagery comprising: first means for scanning at least portions of a pair of stereoscopic photographs and developing video signals in accordance therewith; second means, including computing means, operable in a sequence of cycles of operation, for estimating for successive cycles of operation, on the basis of at least photogrammetric data related to said pair of photographs, the portions of said photographs which represent homologous imagery and controlling said first means to synchronously scan said portions; and third means responsive to said video signals for comparing said video signals therein and producing error signals which represent the degree of error in said second means in estimating said portions of said photographs as representing homologous imagery, said second means including means responsive to said error signals for updating the estimate of the locations of portions of said photographs, which represent homologous imagery, adjacent the scanned portions.

Source: Google Patents

35 USC §181 Secrecy Order