COMPRESSION

This article lists some of the parameter which affect the video quality Number of lines in the vertical display resolution: High-definition television (HDTV) resolution is 1,080 or 720 lines. In contrast, standard-definition digital television (DTV) is 480 lines (for NTSC, where 480 out of 525 scanlines are visible). An encoder [...]

There are several factors that influence and distinguish compression algorithms. These factors should be carefully considered while tuning or choosing a compression algorithm for a particular usage model. Among these factors are: Sensitivity to input frame types: Compression algorithms may have different compression efficiencies based on input frame characteristics, such [...]