[opendtv] Re: 1080i and 1080p are the same resolution
- From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
- To: "opendtv@xxxxxxxxxxxxx" <opendtv@xxxxxxxxxxxxx>
- Date: Sun, 14 Oct 2012 19:34:04 -0500
Monty Solomon posted:
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by Geoffrey Morrison
October 8, 2012
There still seems to be some confusion about the difference between 1080i and
1080p. Both are 1,920x1,080-pixel resolution. Both have 2,073,600 pixels. From
one perspective, 1080i is actually greater than Blu-ray. And, you can't even
get a full 1080p/60 source other than a PC, camcorder, or some still cameras
that shoot video.
True, 1080i and 1080p aren't the same thing, but they are the same resolution.
Let the argument commence...
...
http://reviews.cnet.com/8301-33199_7-57524867-221/1080i-and-1080p-are-the-same-resolution/
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Wow, this old topic again.
If you take a look at the two elephant pictures, I mean the real ones and not
his exaggerated artifacts one, it's pretty obvious that the cameraman was
panning the camera to follow the elephant. So in both of them, the elephant
seems to be quite sharp. But then if you look at the background, the leaves are
all blurry in the interlaced picture.
What he ignores is the vertical resolution filtering that has to be done, to
reduce twitter. Isn't this done at the source end? If yes, then this is why
1080i is NOT equal to 1080p. The vertical res is compromised.
Bert
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