720p VS 1080i

[Stereodesign]

This article explains it all very well.

http://www.dvuser.co.uk/content.php?CID=160

[fukly]

i've read ur article...so if we want to see wedding footage of sony z1 1440x1080i in 42"full hd lcd TV,...jvc 720p(1280x720) shows better?? or it just the best for broadcast?(bcoz of its limited bandwith etc) a bit confused :)
tx 4 the info

[cuervo]

quote:
ABC chose 720p HDTV may be distilled down to a simple truth: it gives the viewer better HDTV pictures >unquote
My own experience is that the images are about equal, the 720p image files are smaller and they playback easier on the timeline.

[Bassman]

The other factor is that HDTVs are mainly progressive display devices.

If you are not going to broadcast your footage, then making a disc and playing it back on somebody's HDTV will probably benefit from being a progressive project.

But this is a confusing topic.

If we can't come to a conclusion, your average viewer will not ever see a difference.

So pick the best workflow for your equipment.

It's all HD in the end and it looks better than SDTV!

[JimJulian]

1080p vs 1080i

Do some suggest that 1080p is the superior picture?
If so, why?

[shueardm]

Do some suggest that 1080p is the superior picture?
If so, why?

Oh yes, for sure, can't get better under film resolution.

[Jerry]

Do some suggest that 1080p is the superior picture?
If so, why?

Superior to what?

Being that we are talking video formats and not film, 1080p is a little down the ladder.


You have Ultra HD http://en.wikipedia.org/wiki/4320p

4k
2k
1080i and p full raster
1080i HDV
720p HDV

I saw many 4k and 2k sets at NAB this year. A few were even playing 3D HD.
That was a hoot.
I think the question is.... is 1080p a superior product for the cost. I would have to say yes if it is shot in true 1920x1080 1/2 or 2/3 cameras.
The new Panasonic 2/3 intra cameras created beautiful pictures in 10bit 1920x1080 on a P2 card.
Things are constantly changing.

[JimJulian]

Superior to what?

1080p vs 1080i was my title line.
Companies that sell plasmas seem to be trying to convince us that progressive is better than interlace. One frame is better than two fields. Is this just marketing bs?

jim

[peterC]

Everybody is hitting it right one way or another, but the original poster if you take Jerry's point sums it up.
It's constantly changing. 1080p was it, but nobody could handle the data rates, hence compromise. Compression, interlace, pixel count whatever.
For the original poster you have 720p, use it best possible and leave it at that. Personally, I would not have gone 720p but that is for many reasons. Aust format being 1080i for one.
It's always about compromise, make the most of what you've got, get it to work best possible and keep ducking and weaving.

[cuervo]

IMHO, progressive is so much better than interlaced, I'll never go back to interlaced. Interlaced has a slight edge for motion shots, like sports, however, the interlacing artifacts are unacceptable to me.

[rando]

Whoa! I didnt mean to cause this much fuss. I guess what I wanted to know if there was a really noticalbe difference between 720p and 1080i. At least one that can be seen by consumers or just guys with trained eyes like us. Also if I shoot in 720p does it make more sense to convert to 1080i before editing so ProCoder does the scaling and not the clients T.V..

[3chip]

720p

There is an article in the latest TV Technology which states that 720p is noticibly better viewing than 1080, that it is the format of choice for most broadcasters.

[tingsern]

I did an extensive field test with my clients. Shot 720p and 1080i (which is actually 1080p) on my HVX202. Play it back via Component RGB on their Pioneer 42" Plasma screen. A / B for nearly 2 hours .... none of the clients (some sitting at just 3 feet from the screen) could tell the difference. This is a real world testing with normal human eyes.

[STORMDAVE]

Probably because the HVX202 has only a 960x540 imager like the HPX500...if you shot footage on an HPX3000 with an AVC Intra option, you would obviously see the difference between 1080i and 720p.

[tingsern]

Yes - that's probably the case as well. My point is - while we agree in theory that 1080p is much better than 720p (the pixel count alone is enough) - in practice, things are not quite clear cut as the case may be.

You have to test out the camera AND the final device destination before we jump to any conclusion.

In this test - the Pioneer 42" TV was the final device the clients use. I did test using a Sharp Aquos 42" TV using the same clips - and I could *just* see the difference between 720p and 1080p. I think the Pioneer TV has some h/w that allows it to interpolate the pixels, whereas the Sharp might be just displaying it vanilla.