1 research outputs found
Development of test materials for assessment broadcasting video path
The analysis of metrological agents for the estimation of the quality of
telecommunication path treatments is carried out. Analysis of subjective and
objective estimation methods is presented. The justification for choosing an
objective method of measuring is presented. Are reported a list of existing
goals and objectives, which face the current progress of the implementation of
promising systems for broadcasting and improvement of existing ones. The latter
include the absence of normative documents and recommendations for optical
specimens of testing tables, etc. Researches related to the choice of optical
samples from existing sets of colors from a number of international documents
and recommendations are presented. Deficiency of these sets is substantiated,
as some of the colors necessary for evaluation of telecommunication paths
cannot be provided with no color of sets. Provides recommendations and
refinements about which colors from existing sets should be used and what
constraints exist when used and how to solve. It is shown, that saturated
colors of green and red colors are not provided with spectral from the existing
sets, therefore, it is proposed to expand the traditional understanding of
metrological means by using atlases of colors. Satin colors In contrast to
existing ones have a number of advantages and can be used for evaluation in
advanced conditions, rather than in the studio that is rigidly defined by the
regulations. It is noted that for different brightness values there are a
different number of testing points. The number of testing points directly
depends on the evaluation criteria, is driven by several possible sets of
colors for evaluation. Recommendations for other evaluation conditions are
provided. Use satin colors to construct testing tablesComment: 16 pages, 13 figure, 2 tabl