Accession Number:

ADA036698

Title:

Linearity and Dynamic Range of a Photographic Film Data Processing System.

Descriptive Note:

Final rept.,

Corporate Author:

MICHIGAN UNIV ANN ARBOR INST OF SCIENCE AND TECHNOLOGY

Personal Author(s):

Report Date:

1966-06-07

Pagination or Media Count:

76.0

Abstract:

Photographic film is non-linear. Yet, for coherent optical processing it is used for recording signals and processed as if it were linear. In the system to be discussed film is recorded from a cathode-ray tube, where the signal input is represented through Z-axis modulation. This modulation is non-linear with respect to a voltage input. Our task is to find the linearity and dynamic range of signals on photographic film recorded from a cathode-ray tube. Since the photographic film is to be processed linearly, that is, through taking the Fourier transform, the film ideally should linearly correspond to the recorded signal. One desires a linear transformation but finds two non-linear transformations.

Subject Categories:

  • Cybernetics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE