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Progressive Scan
Progressive Scan DVD players and televisions eliminate interlacing artifacts from video. Conventional interlaced television systems such as display one low quality video 'field' 50 to 60 times every second. Combined together, two fields make a single, perceptually higher quality, 'frame'. These fields/frames are shown so rapidly that the eye is fooled into believing it is viewing a high quality moving image, not a succession of low resolution still images. A progressive scan DVD player reconstructs complete frames from a DVD, and does not output individual low quality fields. The result is a more natural, stable image, with fewer interlacing artifacts such as shimmering and flicker. Progressive scan systems also more accurately recreate films as they are projected theatrically: as complete frames, not fields.
