Архив форума "Клуб любителей DVD" с 2000 по 2014гг


Что меня более всего заентересовало (+)

Автор: Kastor
<kastor@bars.ru>

Дата: 15.03.01, @15:29

  There are three common kinds of de-interlacing systems:
1- Integrated. This is usually best, where the de-interlacer is integrated with the MPEG-2 decoder so that it can read MPEG-2 flags and analyze the encoded video to determine when to bob and when to weave. Most DVD computers use this method.
2- Internal. The digital video from the MPEG-2 decoder is passed to a separate deinterlacing chip. The disadvantage is that MPEG-2 flags and motion vectors may no longer available to help the de-interlacer determine the original format and cadence. (Some internal chips receive the repeat_first_field and top_field_first flags passed from the decoder, but not the progressive_scan flag.)
3- External. Analog video from the DVD player is passed to a separate de-interlacer (line multiplier) or to a display with a built-in de-interlacer. In this case, the video quality is slightly degraded from being converted to analog, back to digital, and often back again to analog. However, for high-end projection systems, a separate line multiplier (which scales the video and interpolates to a variety of scanning rates) may achieve the best results.

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