Accession Number : AD0839635

Title :   COMPARISON OF THE SECAM COLOR TELEVISION SYSTEM WITH A QUADRATURE MODULATION SYSTEM (NTSC) WITH OVERALL PICTURE QUALITY AS CRITERION (SROVNANI SOUSTAVY BAREVNE TELEVIZE SECAM A SOUSTAVY S KVADRATURNI MODULACI (NTSC) KRITERIEM CELKOVE KVALITY OBRAZU),

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH

Personal Author(s) : Pazderak, J.

Report Date : 10 JAN 1968

Pagination or Media Count : 16

Abstract : Czechoslovakia undertook comparison tests in preparation for the 1965 Vienna session of the CCIR Study Group, which was to adopt a uniform system of color television for Europe. An outline is presented of the Czechoslovak method for the subjective assessment of picture quality; the method is derived from the recommended foreign methods, and the results are comparable. A group of 39 observers viewed 10 test pictures and used a system of plus or minus 3 grades for classification. The quality of the color picture in the SECAM system, with closed-circuit TV, was graded better than the NTSC by an average of 0.12. The compatible black-and-white picture in the SECAM system was graded 1.14 points lower than in the NTSC system.

Descriptors :   (*COLOR TELEVISION, ACCEPTABILITY), CLOSED CIRCUIT TELEVISION, TELEVISION DISPLAY SYSTEMS, CZECHOSLOVAKIA, STANDARDIZATION.

Subject Categories : Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE