1080i ?

  • Thread starter Thread starter hotrod
  • Start date Start date
H

hotrod

im not sure i understand this but maybe one you people can explain it to me!
i was talking to my brother in law and he has a xbox360 and a plasma big
screen at 1080i
he says it looks much better than my 21 inch sony trinitron at 1600x1200 at
32bit with it turned up as high as everything can be on a x1900xtx 512 x 2
in crossfire 2 of them with a core 2 duo extreme 2.93 with 4 gigs ram, was
i correct in saying no way ,or am i misinformed
 
I dunno man. With the new Geforce 8800s your rig is becoming a dinosaur,
onboard sound and all...
 
I think that "looks better than" is subjective. 1080i is 1920 x 1080,
but sent as two "fields" of 960 x 1080, the first field containing the
odd lines, and the second field containing the even lines.

More to the point, if he has a 1080i plasma set, I'll bet it's physical
resolution is 1368 x 768 or 1280 x 720, and even his 1080i is being
"scaled" (like operating an LCD at a resolution other than it's native
resolution). That might work fine for either video games or DVDs, but
it might look like crap if the content was a Windows desktop.
 
Barry Watzman said:
I think that "looks better than" is subjective. 1080i is 1920 x 1080, but
sent as two "fields" of 960 x 1080, the first field containing the odd
lines, and the second field containing the even lines.
Click to expand...

Correction: 1920 is the horizontal. 1080 is the vertical. Interlaced draws
half as many vertical pixels, not horizontal. So, you meant 1920 x 540, not
960 x 1080.

Tony
 
Correction: 1920 is the horizontal. 1080 is the vertical. Interlaced draws
half as many vertical pixels, not horizontal. So, you meant 1920 x 540, not
960 x 1080.
Click to expand...

Say WHAT??




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The Kat said:
Say WHAT??




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Click to expand...

http://en.wikipedia.org/wiki/1080i

"The term usually assumes a widescreen aspect ratio of 16:9, implying a
horizontal resolution of 1920 pixels and a frame resolution of 1920 × 1080
or about 2.07 million pixels, and a field resolution of 1920 × 1080 / 2
(because it's interlaced) or about 1.04 million pixels."

Two fields of half vertical resolution in 1080i give you an interlaced
1920x1080 frame.

1920 x 540 = 1,036,800 pixels or ~ 1.04 million pixels/frame.

Tony
 
Yes, I think you are right. Thanks for catching that. I knew it, but I
had a mind fart.
 
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