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About progressive scanning

Discussion in 'Televisions' started by spike1, Jul 25, 2004.

  1. spike1

    spike1 Member

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    Am I right to assume that a film or HDTV immage (maybe even a comp monitor) duplicates whole frames for a more flicker free image? I.E Frame 1 is identical to frame 2, then the next new frame is frame 3? Thus a 50fps signal is actually 50Hz?
     
    spike1, Jul 25, 2004
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  2. vurbal

    vurbal Administrator Staff Member

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    I'm not sure I understand the question. You seem to be asking if a 50fps source needs to have frames duplicated to play at 50fps, so I assume I'm not understanding what you mean.
     
    vurbal, Jul 26, 2004
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  3. spike1

    spike1 Member

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    I'm asking if 60Hz prog scan signal is 60 FULL NEW FRAMES or just 30 NEW FRAMES and 30 duplicated.
     
    spike1, Jul 26, 2004
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  4. Oriphus

    Oriphus Senior member

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    With interlaced it can scan one frame at 1/60th second skipping all the even numbers, then one frame at 1/60th second to scan all the even numbers, skipping the odd. Ths meaning it took 1/30th second to scan a frame. Progressive scans that frame at 1/60th second. Hence the increase in picture quality
     
    Oriphus, Aug 15, 2004
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