Video shot on a Sony Z1 HDV 16-9.
Completed edit in MSP 8. Outputing Mpeg 2 file, 720x480, cbr 8000.
For the first time every moving edge is ragged. I assume I am having a which frame first problem. Where would I have introduced the error? What could I change to get rid of this?
Thank you... Ian
Jagged edges
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THoff
TV images are interlaced and displayed as two alternating half-frames. During rapid horizontal movement or panning, there can be a significant difference between the positions of the edges of the two frames.
Which frame comes first really makes no difference, as long as the field order is preserved throughout the entire video production process. Analog video is usually captured upper-field first, while DV video is lower-field first.
If the field order gets reversed at some point in the production process, you wind up with jagged edges / tearing / fuzzyness or whatever term you prefer to use.
Deinterlacing is a cheap workaround that blends the two frames together, but while this eliminates any chance of fuzzy edges, it also means that you have essentially half the number of frames that can visualize horizontal movement. This in turn produces judder / jumpyness. For some applications that may be acceptable or even desireable (as when approximating the cadence of film), but it isn't good for smoothly flowing video of contemporary events or home video.
Which frame comes first really makes no difference, as long as the field order is preserved throughout the entire video production process. Analog video is usually captured upper-field first, while DV video is lower-field first.
If the field order gets reversed at some point in the production process, you wind up with jagged edges / tearing / fuzzyness or whatever term you prefer to use.
Deinterlacing is a cheap workaround that blends the two frames together, but while this eliminates any chance of fuzzy edges, it also means that you have essentially half the number of frames that can visualize horizontal movement. This in turn produces judder / jumpyness. For some applications that may be acceptable or even desireable (as when approximating the cadence of film), but it isn't good for smoothly flowing video of contemporary events or home video.