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Upscaling from 1080i to 1080p...does it really work?

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10-15-2008, 10:04 AM
  #1
ItsAllPartOfThePlan
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Upscaling from 1080i to 1080p...does it really work?

Hey guys,

I am planning on getting a new receiver for the home theater setup and stumbled across the Yamaha 6190B (Link). One of the features is that it will upscale to 1080p and all the reviews online have given me mixed messages.

Does anyone have any experience with upscaling? Does it really work? I want to use it for my Bell Satellite signal which is a 1080i signal.

Your help would be greatly appreciated.
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10-15-2008, 11:57 AM
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Quote:
Originally Posted by ItsAllPartOfThePlan View Post
Hey guys,

I am planning on getting a new receiver for the home theater setup and stumbled across the Yamaha 6190B (Link). One of the features is that it will upscale to 1080p and all the reviews online have given me mixed messages.

Does anyone have any experience with upscaling? Does it really work? I want to use it for my Bell Satellite signal which is a 1080i signal.

Your help would be greatly appreciated.
It all depends on the quality of the upscaler, and the source content.

Remember that upscaling won't add detail that isn't already there. If the content is heavy with small details, it won't look much better. Conversely, cartoons look like they're really in HD with upconverters, because they have a lot of solid colours.

The only real difference you'll see from going to 1080p from 1080i is a little less flicker... and if you don't notice it anyways, there's really no point.
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10-15-2008, 12:13 PM
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There's no difference in content or detail or anything between 1080i and 1080p. They are both 1920 x 1080. The only difference is in the way the singal is sent to the display; i means interlaced, p means progressive scan. Progressive scan does produce a slightly smoother picture.

I've never upscaled from 1080i to p, only the lower resolutions, so I can't comment on this specifically. See if you can test upscaling from i to p in a single resolution on someone else's setup to see if you actually notice the difference.
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10-15-2008, 12:23 PM
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I don't believe anything even broadcasts in 1080p at this time or very little if there is anyway. You'll find 1080i more often than not. Then again I'm not an HDTV wiz or anything, but I'm pretty sure that's what I've heard.
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10-15-2008, 12:25 PM
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Upscaling works amazingly on non-HD/non-Bluray DVDs. I was very impressed and watch all my movies this way now.
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10-15-2008, 12:41 PM
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Quote:
Originally Posted by PruBlue25 View Post
I don't believe anything even broadcasts in 1080p at this time or very little if there is anyway. You'll find 1080i more often than not. Then again I'm not an HDTV wiz or anything, but I'm pretty sure that's what I've heard.
I've yet to see a 1080p broadcast. Most content is in 1080i, simply because it's the most universally supported format (older HDTVs didn't support 720p). Keep in mind that all of your LCD and Plasma TVs only have one native output resolution.

If you have a 720p television, your TV can ONLY output at 720p.
If you have a 1080p television, your TV can ONLY output at 1080p.

It will internally make adjustments to the image to stretch/zoom/black bar it to the correct output resolution for the image panel. So, if your TV only supports 720p it doesn't make a whole lot of sense to have a 1080i signal upconverted to 1080p before being scaled down to 720p again.
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10-15-2008, 04:12 PM
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its impossible to upscale from 1080i to 1080p


i mean, you view 1080i picture on a 1080p resolution screen, but you cant "upscale" discrete pixels that didnt exist in the first place
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10-15-2008, 04:13 PM
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Quote:
Originally Posted by PruBlue25 View Post
I don't believe anything even broadcasts in 1080p at this time or very little if there is anyway.
yeah, just blu-ray, pc's, and video games at the moment
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10-15-2008, 04:22 PM
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Quote:
Originally Posted by noobman View Post
I've yet to see a 1080p broadcast. Most content is in 1080i, simply because it's the most universally supported format (older HDTVs didn't support 720p). Keep in mind that all of your LCD and Plasma TVs only have one native output resolution.

If you have a 720p television, your TV can ONLY output at 720p.
If you have a 1080p television, your TV can ONLY output at 1080p.


It will internally make adjustments to the image to stretch/zoom/black bar it to the correct output resolution for the image panel. So, if your TV only supports 720p it doesn't make a whole lot of sense to have a 1080i signal upconverted to 1080p before being scaled down to 720p again.
This is not correct. My tv is 1080p, and I can output at any resolution Equal to 1080p or lower, meaning I get HD in 720P via satellite and SD content output in lower resolution. All bluray and some ps3 games output at full 1080p.

Dish Network is the only "television" provider that has 1080p, and that is only on exclusive PPV content. This just started happening this week I believe.

Bell ExpressVu scales all 1080i content downward to 720p for now until they sort out their Mpeg4 transmission issues.

An excellent source for information for the OP would be www.digitalhome.ca
and google up AVS forums. Another good source of information related to HD is www.bluray.com
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10-15-2008, 10:17 PM
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I haven't been able to see much difference upconverting HD TV signal (from Shaw) using either a Pioneer Elite receiver nor my Sony Grand Wega 1080p which can supposedly do the job too.

Where I do however see a huge difference is, as a poster above mentioned, is upconverting standard DVD (480i) to 1080p. I had a friend insist on seeing the physical disc of Hotel Rwanda because he was convinced it had to be a HD DVD or Blueray. While not perfect, upconverting can be very useful with lower res content like DVD, especially on a bigger TV.

I understand Onkyo and one of the new Sony ES line receivers have stunning video capability in addition to great sound. Yamaha handles both very well in my experience as well. My Pioneer Elite is a monster, and Denon always makes a strong product too.
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10-16-2008, 07:21 AM
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Quote:
Originally Posted by Rattlehead View Post
its impossible to upscale from 1080i to 1080p


i mean, you view 1080i picture on a 1080p resolution screen, but you cant "upscale" discrete pixels that didnt exist in the first place
Like I said earlier, there is no pixel difference between 1080i and p. It's the exact same picture and resolution, it's just displayed differently. They are both 1920 x 1080, i just means interlaced while p means progressive scan. Progressive scan can produce a slightly smoother picture, if you even notice. That's it, theres no extra pixels, there's no extra video quality, just the manner in with it appears on the screen is a little different.

Quote:
Originally Posted by BandwagonBasher View Post
This is not correct. My tv is 1080p, and I can output at any resolution Equal to 1080p or lower, meaning I get HD in 720P via satellite and SD content output in lower resolution. All bluray and some ps3 games output at full 1080p.

Dish Network is the only "television" provider that has 1080p, and that is only on exclusive PPV content. This just started happening this week I believe.

Bell ExpressVu scales all 1080i content downward to 720p for now until they sort out their Mpeg4 transmission issues.
He wasn't saying you can't play 720p video on your 1080p TV, he was just talking about native resolution. If your TV has 1920 x 1080 pixels, it can't lose pixels to display 720p video, it has to simulate having less pixels. It will expand each pixel in the 720p video to take up several pixels on your 1080p TV. That's just the way LCDs and plasmas work. The way he phrased it was kind of confusing, but he was right.

As has been said, you probably won't even notice the small difference going from i to p on a single resolution. Upscaling from lower resolutions (480 -> 720, etc) you will notice a good improvement in video quality. It's not perfect, and a source material that is already 720 will still look better than upscaling to 720 from 480, but the upscaled 480 will look a lot better than if you didn't.
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10-20-2008, 11:05 AM
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Thanks for all the help guys. I went ahead and bought the receiver this weekend and so far the test are working out great.

I have a regular DVD player and so far the upscaling results are mindblowing.
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10-20-2008, 11:56 PM
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Quote:
Originally Posted by ItsAllPartOfThePlan View Post
Thanks for all the help guys. I went ahead and bought the receiver this weekend and so far the test are working out great.

I have a regular DVD player and so far the upscaling results are mindblowing.
Good stuff, Yamaha makes a great all round receiver, and that one in particular seems like a beast.

Just curious, which speakers and TV is the Yamaha hooked up to?

I hooked my Pioneer Elite up to NHT Classic 3's across the front, with in-ceilings for the back 3 channels and the NHT 12 sub. It is mindboggling coming from listening to a "home theatre in a box" set up before (Sony and Panasonic).

Hockey (or anything for that matter) in 6.1 Dolby Digital at 1080p on a 70" is just a different world of enjoyment.

The NHT Classic 3's are shockingly good bookshelves but they are uber-power hungry if you want them to really sing so weak receivers need not apply. But that's what high current receivers with 130 continuous watts per channel are for I guess.
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