Jargon buster

Jargon Buster

Not sure what some of the video jargon means? Here's the low down.

Term Description
Luma Brightness information
Chroma Color information
Bit Depth Color depth, also known as bit depth, is either the number of bits used to indicate the color of a single pixel, in a bitmapped image or video frame buffer (the number of values you have between dark and light). e.g. 8 bit = 2 to the 8th value for each of the Red, Green and Blue channels = 256 whereas 10 bit = 2 to the 10th value for each of the Red, Green and Blue channels = 1024
Bit Rate The number of bits that are conveyed or processed per unit of time.
Chroma Subsampling Chroma subsampling is the practice of encoding images by implementing less resolution for chroma information than for luma information, taking advantage of the human visual system's lower acuity for color differences than for luminance. e.g. 4:4:4 4:2:2 4:2:0
Raw Video/Audio Digital video/audio information that has not been compressed
Temporal Compression A type of compression used by some codecs that assumes frames beside each other look similar. The first frame in the series would be entirely digitized (called a key frame). In the next frame only the information that has changed is digitized. Because temporal compression makes one frame depend on another it makes editing temporally compressed video difficult.
Spatial Compression Reducing digital video file sizes by compressing the pixels within each frame independently.
GOP Group of Pictures
Lossless Compression Compression where all original file data can be recovered when file is uncompressed.
Lossy Compression Compression reducing a file by permanently eliminating certain information, especially redundant information.
Image Compression Reduce irrelevant and redundant image data in order to be able to store or transmit data in an efficient form. Image compression can be lossless or lossy compression.
Data Compression Encoding information using fewer bits than the original representation. Data compression can be lossless or lossy compression.
Mbps Megabits per second
MBps Megabytes per second
Kbps Kilobits per second
KBps Kilobytes per second
Transcode Analogue-to-analogue or digital-to-digital encoding or conversion.
Containers The container file is used to identify and interleave different video and audio data types.
AVI Audio Video Interleave, Video Container
WMV Windows Media Video, Video Container
MOV Quicktime, Video Container
MPG MPEG Video Container
MP4 MPEG-4 Video Container
Ogg Free open container format
webM Royalty free video file format used in the HTML5 video tag.
CODECS Compressor Decompressor a format of compressing and decompressing video/audio. Below are various popular CODECS


Article Author: Chris Kellett

Chris is one of the worlds leading experts in Adobe Muse and skilled in all aspects of HTML, CSS and Javascript a graphic designer, animator and film producer.

A freelance web developer for 19 years with 150+ muse templates and over 100 muse widgets (and counting) for other Muse template providers under his belt.

Skills Highlight:

Adobe Muse

Coding & Development

Graphic Design & UI

Looking for Adobe Muse Widgets? Looking to for Adobe Muse Training?
Copyright © 123muse.com 2015 - All rights reserved