Interlacing and pixels

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Gisela Richter
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Interlacing and pixels

Post by Gisela Richter »

I'm filming HD with a Canon HV 20. Editing with VS 10. No big problems but minor questions:
Interlacing: For the capture process should I click on "deinterlace"? According to my information deinterlaced is better for showing on the TV screen.
Pixels: non-square should be chosen I believe?
Many thnks for an answer!
Kookaburra
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Interlace and pixels

Post by Ken Veal »

Yes
Image capture deinterlace and non sq pixels ...............Ken
skier-hughes
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Post by skier-hughes »

Surely it depends on the type of tv you are showing it on?

A 1080i will be best with an interlaced image, whereas a 720p would be better progressive, for example.
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Post by erdna »

All flatpannel TV's display in progressive mode. So deinterlacing (a tricky process) is needed for interlaced footage...Your HV20 has a progressive mode setting, and I would use progressive it when the video doesn't contain fast motion(risk for strong judder). Also still pics out of a progressive mode registered video are way better, especially when you set short shutter times for your video registration.
Frank Burch
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deinterlacing

Post by Frank Burch »

The comments on this thread are contradictory. I have tried progrssive mode with my camcorder but found it no better rather less good than 1080i. Now my flat screen demands progressive mode but will make the necessary conversion itself. Nevertheless VS 10 plus offers the choice of deinterlacing the capture. What is this for? Surely for converting HDV? But maybe it's better to let the TV do it?
The question remains open. Can anyone offer further information?
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Post by skier-hughes »

let the tv do it.
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Re: deinterlacing

Post by erdna »

Frank Burch wrote:The comments on this thread are contradictory. I have tried progrssive mode with my camcorder but found it no better rather less good than 1080i. Now my flat screen demands progressive mode but will make the necessary conversion itself. Nevertheless VS 10 plus offers the choice of deinterlacing the capture. What is this for? Surely for converting HDV? But maybe it's better to let the TV do it?
The question remains open. Can anyone offer further information?
Progressive mode quality: In what respect is the p mode less good than the i mode?. There could be two reasons: or, yr camcorder uses "frame mode" scan instead of real proscan, or the progressive mode has been combined with "cinema mode". In both cases the vertical resolution is reduced.
The de-interlacer in VS is, like for most other nle's based on one field. It is a very low performance intrafield de-interlacing method, only to be used for computer viewing.
De-interlacing/rescaling is indeed best done by the flatscreen electronics, but if an high performance player (BD..) and a TV wich accepts 1080p is involved, it is interesting to verifiy which one does the best deinterlacing.
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Erdna

Post by Frank Burch »

Thanks for the reply. Together with Graham's help the question seems to be settled. I'll just let my Sony Bravia TV do the deinterlacing and not worry about it any further. Your English is so good you must be English speaking.
Wombat
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