Just some FYI!
by jaybme82 - 11/9/06 9:01 PM
In Reply to: Just some FYI! by jcrobso
1) I think that proper 1080p sets don't actually deinterlace a 1080i
signal which would deteriate the signal:
A) I think that a 1080i signal comes in at 1080 and then
B) It is displayed as 1080p with a proper 1080p TV!
2)A proper 1080i set would have to ask extra questions
A) Is the signal 1080 if yes?
A) I think that a 1080i signal comes in at 1080 and then in
addition to what calculations would have to be carried out for
1: It would have to first show the odd lines and then
2: It would have to secondly show even lines
3) Using computer programming.
For example let me try and give you an indication of the problem:
1) Let bottom number = BN = zero
2) let top number = TN = 1080
3) Let count = C = BN = zero
For a proper 1080p TV
4) C = C + 1 = 1
5) Display frame
6) If C = 1080 Yes, goto the next frame.
7) If no, Goto 4)
Hopefully, as you can see the 1080i TV waste time and memory etcetera!
Unfortunately, I don't know enough about Aspect Ratios - upscaling SD, 480, and 720 to 1080p but it shouldn't be too difficult with the mathematical techniques available.
One of the reasons why I purchased my Panasonic widescreen prologic TV, in 1999 was because it was one of the first TVs, which probably solved the problem of objects or people being fat on the TV, and also stretching picture problems.
With a widescreen TV there are numerous different, 'Aspect Ratios' to be taken into account not just 16:9 & 4:3.
Very few TVs appear to be 720, because they appear to be 733 but whatever method used it should be based on the best mathematical fit for whatever is the source and preferably that is 1080.
I think that it was the HDMI, which stated that resolution may be increased to 1440, which is 3 x 480, which is interesting.
It is also 2 x 720p, which is even more interesting.
This means probably means that if the folowwing is excellent; frequence, response, computer chip, graphics, and memory even 1440i maybe better than 1080p with no fast moving picture problems.
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