business solutions
 short overview:
audio video images rich text news
     
overview main features products partners benchmarks
                   
What is Video Compression?

Video compression is a subset of the general technique of data compression, whereby a 'signal', which can be thought of as a series of numbers, is squeezed, or 'compressed' into a smaller set of numbers. These numbers will then take up less space on a hard drive, or take less time to transmit over a network. Before the numbers are used again, a 'decompression' algorithm is applied to expand the series of numbers to its original (or at least a similar) form.

Video compression utilizes the fact that the signal is known to originate as digitized video, in order to increase the 'compression ratio', or the amount of squeezing that can be applied to the series of numbers to be stored.



Why Compress Video?

There are a number of good reasons to compress video and audio signals, including technical issues and cost of equipment. However, we will deal with one overriding issue, the storage demands cost.

Working with video on enterprises or even on personal computers is greatly challenging due to the storage demands. A single frame of uncompressed DVD-quality video without sound gobbles up to 1 megabyte of storage space. Video is usually shown at 30 frames per second. This means it takes ~30 MB of storage space for one second of video. So if a video runs 60 minutes, at least 108 gigabytes of storage space is required. For this reason, digitized video is compressed, a process that discards as much information as possible without noticeably affecting the quality.

show pictureshow picture


All rights reserved © Infima Technologies LTD.
Infima introduces new patent pending compression technology