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4/28/20081Image compressionImage compression fundamentalsSpring 2008ELEN 4304/5365 DIP1by Gleb V. Tcheslavski: [email protected]PreliminariesImage compression – reducing or eliminating of redundant or irrelevant information – is one of the most used techniques in the field of image processing.Considering a two-hour standard definition (SD) TV movie that we need to store digitally… A digital movie (video) is a sequence of video frames, which are full-color digital still images. The standard rate for an NTSC video is close to 30 fps (frames per second), therefore, the bit rate required for SD video is30 (720 480) 331,104,000/ secbytes⋅⋅⋅=Spring 2008ELEN 4304/5365 DIP2Image resolutionFrame ratePixel depthAnd a storage requirement for a two-hour movie would be1131,104,000 60 60 22.24 10bytes⋅⋅⋅≈⋅
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