公开(公告)号：US3950097A

公开(公告)日：1976-04-13

申请号：US550222

申请日：1975-02-18

申请人： Wolfgang M. Gopfert ,  Alvin A. Read

发明人： Wolfgang M. Gopfert ,  Alvin A. Read

IPC分类号： G01C11/06 ,  G01C11/08

CPC分类号： G01C11/06

摘要： This invention describes an analog system for the automation of the stereocompilation process and for producing contour maps and orthophoto maps. It employs a combination of coherent optical and electronic techniques for the correlation of stereophoto pairs and thus the computation of parallaxes in the photogrammetric sense, for the selection of specific parallaxes, and for the production of contour maps and orthophoto maps.The system in a basic form reproduces perspective contours of the imagery, and in a more complete system corrects the perspective contours into orthographic contours and orthophoto-maps.