AnalogThe older, pre-digital era type of video signal.
ApertureThe size of the opening used by cameras when capturing video & still imagery, this affects the amount of light that hits the photosensitive array in the camera.
Aspect RatioThe ratio of width to height used for screens and visual content. For example, 4:3 and 16:9 are common boxy and widescreen aspect ratios respectively.
BandwidthThe digital spacial allowance that video and audio content travels through; wider bandwidth allows more content to flow through at higher speeds than thinner bandwidth. DODGY
BitThe smallest possible piece of digital data to date; short for binary digit, a bit can be either 0 or 1.
Bit RateThe rate at which the data stream travels from storage to decoder, which then displays the content. A higher bit rate means you’ll have an easier time viewing high quality footage in large file sizes.
Bit DepthThe number of bits per pixel, a higher bit depth means more potential colours.
CodecAn algorithm used to convert analog video and audio signals to digital, and sometimes even back again.
CompressionVarious methods used to reduce the size of video files for easier storage and playback.
CroppingA cutting technique used to remove parts of an image.
DecoderA device used to turn encoded signals into displayable content.
Depth of FieldThe point(s) of distance in an image that are in focus.
Digital SignalAn electronic signal comprised of 0s and 1s that results in imagery, sound, etc.
DigitisingThe conversion of analog video or audio to a digital form.
DisplayThe panel technology used to show video or imagery to the user.
Field of ViewThe maximum viewing angle visible through a lens.
FrameOne of the still images that is used in playback to create video.
Frame RateThe rate at which frames are shown on screen, such as 25 frames per second for PAL.
H.264One of the most used and efficient recording formats for high definition video.
HertzA standard measurement of frequency wherein 1 hertz(Hz) is one cycle per second.
InterlacedThe “i” in “1080i”, interlaced scanning is an older scan method whereby the image is split, and half of the image is shown 1/60th of a second after the first half.
LetterboxBlack bars surrounding the video image, often the result of changing in resolution or aspect ration.
MonitorA video display unit used to view digital or analog imagery.
National Television Systems Committee (NTSC)An analog television system previously used across most of the American continent and a handful of far-eastern countries such as Japan or South Korea.
PacketOne piece of binary data traveling from one point to another, such as over the internet.
Phase Alternate Line (PAL)An analog television system previously used primarily in Europe, Oceania, and otherwise scattered across the world.
PixelShort for picture element, a pixel is an individual part of the grid used to create an image on a display.
ProgressiveThe “p” in “1080p”, progressive scanning is a method by which the full image is rendered all at once on a screen, as opposed to interlaced scan.
ResolutionThe width and height of pixel lines in an image, for example 1920×1080.
Scan TypeThe method by which the image is drawn on the screen. See: Interlaced & Progressive.
Séquential couleur à mémoire (SECAM)An analog television system first used in France, it was also used in Russia, parts of Africa, and other smaller localities across the world.
StreamingThe capacity to view video online without downloading the full file first. YouTube, Netflix, and many others use streaming functionality.
TranscodeThe conversion of one container to another, ideally performed in manners to reduce loss of quality where possible.
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