Synonym chroma keying.

In color television technology, the instantaneous phase of the chroma signal with respect to that of the color burst signal.
Note: The phase of the chroma signal at any given instant determines the color balance of the video signal at that instant.

In color television technology, electronic alteration of the color information content to effect a change in the color balance of the video signal.

In analog color television technology, a signal superimposed upon the picture (gray scale) information for the purpose of conveying the associated color information.
Note: The color information is conveyed by the instantaneous phase of the color subcarrier with respect to that of the color burst.

Of an electromagnetic source, especially in the optical regime, the hue or wavelength (spectral content) expressed or specified as the hypothetical wavelength(s) emitted by an ideal blackbody having an absolute temperature of n kelvins (n K).
Note 1: Higher numbers indicate hues in or toward the blue; lower numbers indicate hues in or toward the red.
Note 2: Examples of… (Read More →)

The chrominance vectors carrying the color information in a composite format.
Note: The color-difference signals have been defined by the ITU-R for existing television systems.

1. The tristimulus values corresponding to monochromatic stimuli of equal radiant power.
Note: The three values of a set of color-matching functions at a given wavelength are called the color-matching coefficients. The color-matching functions may be used to calculate the tristimulus values of a color stimulus from the color stimulus function. [After SMPTE]
2. The tristimulus value per unit wavelength… (Read More →)

1. Measurement of colors based on a set of conventions. [After SMPTE]
2. The science of, or body of techniques employed in, (a) the measurement or characterization of color, and (b) the interpretation of the results.
Note: Human perception of color is a subjective phenomenon resulting from and dependent upon the properties of the eye and the brain.

A radio operating in a network that (a) provides a half-duplex circuit and (b) uses either a single radio frequency or a discrete set of radio frequencies when in a frequency hopping mode.
Note: CNRs are primarily used for push-to-talk-operated radio nets for command and control of combat, combat support, and combat service support operations among ground, sea, and air… (Read More →)

A device having at least one output channel and one or more input channels, all characterized by discrete states, such that at any instant the state of each output channel is completely determined by the states of the input channels at the same instant.