Accession Number:

AD0706157

Title:

TRANSFER FUNCTIONS OF SPECTROZONAL AERIAL FILMS,

Descriptive Note:

Corporate Author:

FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s):

Report Date:

1970-01-21

Pagination or Media Count:

5.0

Abstract:

The frequency-contrast transfer functions were determined of layers of spectrozonal aerial films SN-6, SN-23, and Ektachrome Infrared Aerial Film. The determination method consisted in microphotometry of bands of erosion of the image of a knife-edge through narrow-zonal light filters and obtaining curves of DX the curves were recalculated according to data of corresponding sensitometric determinations into curves of EX. Proceeding from the theory of the boundary function of a jump in brightness, the contrasts were calculated between light and dark shadings in the image of Pi-shaped periodic gratings of different frequency and determined the transfer function. The relative error of determination was about 5 percent.

Subject Categories:

  • Cartography and Aerial Photography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE