TRANSFER FUNCTIONS OF SPECTROZONAL AERIAL FILMS,
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 D(X); the curves were recalculated according to data of corresponding sensitometric determinations into curves of E(X). 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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 21, 1970
- Accession Number
- AD0706157
Entities
People
- A. Ya. Smirnov
- V. F. Nomokonova
Organizations
- National Air and Space Intelligence Center