Pyro Industries API-1394PCI Manual de usuario descargar pdf (Pagina 315)

294

GLOSSARY ■

picture production. Includes scene numbers,

takes, circled takes, footage, and other infor-

mation. A copy of this multicarbon form

should be sent to the editorial department.

capture To input video and/or audio into a

nonlinear editor (NLE) format. Also known

as digitizing or ingesting.

CCD Acronym for charged coupling device. A

sensor used in digital video cameras and

other photoelectric devices to convert light

into electricity.

CCIR Acronym for Consultative Committee

for International Radio, an international

body that sets television standards. Now

referred to as ITU-R.

CCIR 601 A document issued by the CCIR

that recommends specifications for digital

component video. Now referred to as ITU-R

BT.601

CCIR-709 A document issued by the CCIR that

recommends specifications for high-definition

television signals. Now referred to as ITU-R

BT.709.

CES Acronym for color encoding specification.

change list A list of instructions comparing an

updated cut of a sequence to its previous ver-

sion. Simplifies changes for the person con-

forming by only listing updated revisions and

new edits.

changeover The point at which the projection-

ist switches between reels during display of a

motion picture. Changeover cue marks must

be made 24 frames before the last frame of

action (LFOA).

character generator A device that creates

alphanumeric characters that are superim-

posed on video.

characterization The process of defining color

characteristics for a model of input or out-

put device; used with color management

modules.

charge-coupled device A sensor used in digital

video cameras and other photoelectric devices

to convert light into electricity. Also referred to

as a CCD.

chroma The color component of a video

signal.

chroma curve Graph used in Color Correction

mode that adjusts color values.

chromadynamics The human response to color:

psychological, physiological, or cultural.

chroma key A special effects procedure in

which a subject is photographed in front of a

uniformly illuminated blue background. A

new background image can be substituted for

the blue during the shoot or in postproduc-

tion. Also referred to as blue screen.

chroma subsampling A technique for sampling

image information, usually for storage on

videotape, in which luma is stored at full res-

olution but chroma components are reduced.

Often referred to by ratio, in which 4:2:2

would refer to 4 pixels of full luminance, 2

pixels of horizontal chroma for each channel

of chroma information, and 2 pixels of verti-

cal information for each channel of chroma

information.

chroma wheel Controls used in Color Correc-

tion mode to adjust hue and saturation.

chrominance Refers to the properties of color.

chunking A method of transferring media files

to a workgroup in segments so that users can

begin using the files without the entire file

having been sent.

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