Whats the diffrence?

[BrettLee3232]

Between 1080p & 1080i????

[aramis109]

Progressive (full picture posted all at the same time) vs. Interlaced (part of the picture displayed on the screen at any one time).

http://blog.ultimateavmag.com/scottw...2608interprog/

[My_Two_Cents]

Nothing, really, on a 1080p set that passes all deinterlacing tests.....

[WriteSimply]

Originally Posted by Ricshoe

Nothing, really, on a 1080p set that passes all deinterlacing tests.....

It's a newbie thread. Don't brag. Because you can always be outbragged.


fuad

[HAMP]

Originally Posted by BrettLee3232

Between 1080p & 1080i????

1080P is better!

Do a yahoo/google search and you will get the answer's you are looking for.

[Anthony P]

one has a p and the other an i

(now that the joke is over)

in the old days you had CRT TVs. On them a streams of electrons would be shot on the screen in rows to make the pic. when the electron hits the phosphore on the screen it would glow. because this was a single stream they soon realised that it took too long to draw the whole screen and so would look bad (you had the bright new line just above the darker dying line).

So they created interlace and the CRT TV would draw every second line and then come back and fill in the missing ones before it starts the next image. (i.e. each image is split on odd or even lines)

Now, every digital display shows all the info all at once and that is known as progressive.

once that historic difference is known (just so that there is no question of why i)

the next thing to discuss is that 1080i or 1080p only describes part of the situation.

film is shot at 24 frames (pics) per second. So a perfect representation would be 1080p24. A perfect i representation would be 1080i48 (which is 24*2 because you know have 2 pics per frame representing the odd and even lines (i.e. same width but 540 lines each)). Unfortunetly the world does not work at i48 (which would be easy to get back to p24) but i60 so we have what is known as telecine and 3:2 pulldown. so to go from 24p to 60i what you get is 1o,1e,1o,2e,2o,3e,3o,3e,4o,4e (where 1,2,3,4 are the original frames and o,e are the odd/even images)

if you where to watch on an interlaced set you would get (1o,1e),(1o,2e),(2o,3e),(3o,3e),(4o,4e)
and the two bold ones are not shown correctly. Most progressive TVs assume the interlaced signal is from film and so try to reverse engineer it (don't forget that it is easy to see the difference on a forum with me calling it 1o or 4e but the TV only gets image information.) but not always succesfully.



Note: there are really no more i TVs, but sometimes you will see a none 1920x1080 TV advertised as 1080i, all that means is that you can pass to it a 1080i signal, but the display would usually be much less in resolution (i.e a 1366x720)

[crackinhedz]

[My_Two_Cents]

Originally Posted by WriteSimply

It's a newbie thread. Don't brag. Because you can always be outbragged.


fuad

What the Hell are you on your high-horse about? I gave an accurate statement/answer based on the OPs question. Should I have simply given the underinformed respose of "1080p is waaaaaay better!" Where is the bragging?