Re: plasma vs lcd
[QUOTE=TomTom;558874]While I am at..can anybody explain to me how upscaling works in a way that I can understand it lol? As far as I see it, when you enlarge a resolution the result does not get better because if you can't add more information and details you just blow the data up...I imagine this like encoding a 64kb stream to a 320k mp3 file..what is not there can't be added but maybe this comparison is wrong. Is the information available on a DVD in higher resolution and it is normally downscaled (if such a word exists) and the upscaling reverses the effect?[/QUOTE]
The difference between upscaling video to HiDef vs. mp3 to Higher bitrates is $$
Here, engineers and programmers write advanced recoding software to upscale the video vs. mp3 upscalers you download on sourceforge.
I read a detailed paper about it but didnt understand the half of it, but understood something along the lines of how a laser reads the data on the dvd, deciphers the pixel color info from one pixel to another (and around the overall object), run algorithms to decide the closest color match of the new pixel data and build up a higher resolution picture from it. They add sharpening and other tweaks to the data (some of the better upscalers threw in Faroudja's chipsets for smoothing out the video output in hi-def) and created a remarkably improved albeit fake hidef signal.
[QUOTE=TomTom;558874]
What I also would like to know is how is it possible that everything can be broadcasted in HD. We have a channel where they show old rubbish western and 60ties movies in HD. What is the original resolution of such old movies and is everything you see on the telly downscaled as well so it is compatible with the tv format? I like the new toys but HD still confuses me lol.[/QUOTE]
HD upscaling has its limitations, those old rubbish 60ties movies can only be upscaled by so much, so they still look like shit. The original resolution would be the resolution of the camera recorded them back in the 60s. Nothing is downscaled, nearly all of the tvs (until the advent of HD) displayed the data as it was presented to them in the horrid analog format, of course they threw in curved screen tvs, flat screen tvs, anti-glare tvs, small screen large screen tvs, sony's pioneering 3 beam trinitron's, improved refresh rates, yaada yaada yaada, but end of the day, they were not too far apart from each other because the signal was so shitty, the visual improvements were too small to take notice.
Full HiDef on the other hand has nearly 4 times the lines and so of course at that high a resolution, the digital signal can be tweaker ridiculously and filters added for a picture quality that's not even in the same playing field as analogue tvs