Interlaced vs Non-interlaced?

Discussion in 'Amateur Video Production' started by Guest, Jun 23, 2006.

  1. Guest

    Guest Guest

    I recently put 2 videos on DVD, the first one non-interlaced and the
    second one interlaced. The first one (non-interlaced) looks fine both
    on my PC and on my TV (with my progressive scan DVD player), but the
    second one (interlaced) looks fine on my PC, and looks like it's
    flickering on my TV. Too fast for the human eye to notice it's
    flickering, but enough so that you can notice something annoying; when
    I pause it, however, the image becomes stable.

    I tried re-encoding the same video in non-interlaced mode, and it plays
    fine on my TV, but it seems to stutter when I pause it. On my PC, the
    contour of the objects in the picture looks jagged, which makes it
    seems like an interlaced video will look better on a PC screen, and a
    non-interlaced video will look better on a TV screen. However,
    everything I've read so far points in the opposite direction
    (interlaced looks better on a TV). I am really confused...does anyone
    know what the best thing to do would be? (By the way, the source vid
    seems to be interlaced, because when I load it into TMPGEnc, in the
    "Expert Setting for Source" box, it says "Video type: Interlaced, Field
    order: Top field first (field A), Aspect ratio: 4:3 Display, Content of
    video: Video movie"). Should I de-interlace it? Thanks a lot for your
    help and sorry if my post is awfully long!
    Guest, Jun 23, 2006
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  2. First off, if your television does not support progressive video display the
    television is interlacing the video , regardless of whether or not you use
    the progressive scan function of your DVD player.

    Secondly, it appears you must be in NTSC video standard because you say
    there is an annoying flickering when you output an interlaced video. You
    further supported my assumption when you stated you chose transcode settings
    which included upper field ordering. NTSC is lower field. And, with this
    knowledge in hand I can say without reservation your television does not
    support progressive scan playback.

    Do another interlaced transcode, choose lower field and I will lay odds the
    flicker disappears.

    Larry Johnson
    Digital Video Solutions
    877-227-6281 Toll Free Sales Assistance
    386-672-1941 Customer Service
    386-672-1907 Technical Support
    386-676-1515 Fax
    Larry Johnson, Jun 23, 2006
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  3. Guest

    Guest Guest

    Wow...turns out you are right! Indeed, it worked fine. Now, if I just
    want to replace the second video and I still have the DVD structure
    (AUDIO_TS and VIDEO_TS folders) on my hard drive, can I just encode my
    mpeg-2 file into vob files with my DVD authoring software and then
    replace the old ones in my original DVD structure? Or would that mess
    up everything?

    Guest, Jun 23, 2006
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