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Photogrammetric Tools For Panoramic Sector Scan Imagery In The VIDARS Analysis Station

Computer-assisted photo-interpretation is a recent development supported by the advent of numerous interpretation stations. A unique universal station is VIDARS--manufactured by the Richards Corporation of McLean, Virginia--since it has recently been equipped with a new software system that incorporates complex photogrammetric mensuration capabilities. Photo-interpreters typically find it difficult to perform mensuration tasks; therefore the implementation of the photogrammetric functions must not burden the user with a need to understand photogrammetric theories. This paper illustrates a difficult application of VIDARS to sector-scan panoramic film (Long Range Aerial Panoramic--LORAP) imagery and will show how well the user can perform target positioning tasks within his interpretation work.