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  1. #1
    M.P.S.E /AES/SMPTE member Sir Terrence the Terrible's Avatar
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    You still cannot put together information correctly. It must be the fact that you have been doing far too much dumpster diving, and the scent of the trash has f*cked up your brain.

    can tell you from reading thousands of magazines and books and websites on the subject that progressive is better than interlaced.
    1080p IS better than 1080i. 720p IS NOT better than 1080i, especially not with movies. 720p has half the pixel count, and therefore less detail than a 1080i image. 720p only advantage over 1080i is during moving images, and that is only in theory. In the field response times, and motion blurring erase any advantage 720p would have over 1080i

    One reason is that an interlaced picture loses up to half its resolution when theres movement.
    In theory you are correct. However our eyes and brains do not look at images a frame at a time. It blends frames together to create images, and it does it so fast our eyes cannot perceive that any resolution is lost during refreshing. While fixed panels "paint" the image all at once, there is a lag on and off of the pixels(response time) and a smearing of one image over another(motion blur), and that would erase any advantage progressive would have over interlaced signals that do not suffer from this problem.

    But sir talky says "not so" for the simple reason that 1080i IS A HIGHER NUMBER THAN 720P!!!
    You are a damn liar a$$hole, I never said any such thing. I always knew you were a stupid old man, but I never knew you were a stupid lying old man. 1080i and 1080p are both 2.07 million pixels. The only difference between the two is that one is all the resolution at once, the other in alternating fields. If interlacing is done well (weaving instead of bobbing) you would be hard pressed to tell the difference at typical viewing distances. 720p is not even a million pixels. So it does not make any difference that it all the resolution on the screen all the time, its less information than 1080i. And even if you are(in theory) only seeing half the resolution during moving images, the refresh and scan rate is so quick, and our eyes and brains are so intelligent, that it sews the images together much quicker than our eyes can detect. My problem with your theories is that they do not present the eye/brain side of the equation. You only present HALF the facts, not the whole picture. You are making lab theory field fact, and it does not work that way.

    If the actual, real world resolution of that 1080i picture is 650 lines you'd be lucky,
    and then theres interlace artifacts.
    You are wrong again, and you are generalizing. Not all CRT based display devices are alike. Your experience is with cheap single gun CRT's. You have no experience with high quality RPTV's that easily exceed 650 lines(Mitsibishi, Toshiba, Hitachi, and Sony top of the line 2004 RPTV's could do 900-1000 lines), and CRT based front projection system can do 1100 lines. In the last generation of quality RPTV and front projection systems, DSP processing either internally, or with outboard processor were very sucessful in dealing with interlacing artifacts. Most interlacing artifacts that are viewable are the result of cheap interlacing algorythms(bobbing). Weaving is far superior, and results in FAR less viewable artifacting. The other side of the coin is downscaling from 1080p to 720p also produces viewable artifacts. Most interlacing artifacts come from the fact that you are presenting an image that was recorded in 480i to 1080i. 1080i to 1080i produces alot less artifacting, and 1080p to 1080i produces almost none. The higher the resolution of the interlaced image, the fewer interlacing artifacts you will see, that is because the lines get closer and closer as the resolution get higher.

    My electronics treacher in 1975 told me that the real world rsolution of a ntsc picture
    (480i) is around 240 lines, Joe Kane, television guru says pretty much the same thing, advocating 720p as a broadcast standard because its better (which ABC thought also, they broadcast in 720p).
    Another lie. Joe Kane has NEVER said any such thing. 480i is 480 lines of resolution on a 4:3 screen. When you letterbox that image at 1:85 or 2:35:1 the lines of resolution drop to 380 and 330 lines. So if your electronics teacher told you that information, then I blame your stupid teachers for making you the same way. The resolution of VHS is 240 lines. ABC chose 720p because the network produces alot of sports programming. 720p is better for fast moving motion, and 1080i is better for static images such as movies and television shows. Its not as easy as progressive is better. Joe Kane DOES say that, because I heard him do so at CES back in 2006 during his hi def workshop.


    But this ninny says that 1080i is better because 1080 is a higher number than 720,
    and I am supposed to genuflect in front of this silly moron and say "I'm sorry, you're right"
    ???
    1080i is 1920x1080, 720 is 1280x720. 1080i is 2.07 million pixels, 720p is 921,600. Since pixel count does determine the amount of resolution you see, you are right, 1080 is a higher number than 720. And yes, you should say I am sorry, he is right. However you are too stupid to do that.

    In spite of the fact that hes talking gibberish?
    He talks about his "system" which "some guys from work" cobbled up for him like its a real world standard, when from his description it cost at least 200 grand,
    uses CRT projection( ONE crt projector when anybody knows that you need two because the light output is too meager)
    Cobble means to repair, and my set was not repaired, it was upgraded and redesigned, very different. It did not cost 200 grand, it didn't even cost 20 grand. It was upgraded and redesigned based on a standard RPTV chassis, using top of the line optics found in front projection projectors. All this is based on existing modified parts, not some unreal world standard. The optics in my set are modified Sony G90 CRT's. It is pretty common to color correct those tubes(I bought mine already done). 9" tubes can be found in Mitsubishi 65" and 73" CRT based RPTV's, and Toshiba top of the line 65"(65h84). As far as light output, you are behind the times again. A front projection system with 9" guns has no problem meeting SMPTE standards on a 300" screen. The G90 can output 1300 lumens, so one will do just fine thanks.

    Your problem pixelpuss is you have no experience with CRT beyond the cheap single gun 32 incher. Once you go to the high end, you are lost and trying to tie in your experience with cheap stuff with the well engineered stuff not trying to meet a $300 price point. You are mixing small truths with huge lies and misinformation. You are constantly averting the small detail(which really does matter) just to expedite your point, and that often is where you get lost. You think that just because you read a few magazines, that you know a little something. You are right, you know a LITTLE something, at that is all.

    In the future when you quote me, get your $hit right or don't quote me.
    Sir Terrence

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  2. #2
    Forum Regular pixelthis's Avatar
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    Cool

    1080p IS the best format out there, no debating that.
    What talky said (and later backtracked on) is that 1080 INTERLACED
    is better than 720p, which is BS squared.
    As for the rest of his rant, anybody got some designer tranks? Sounds like he needs em
    LG 42", integra 6.9, B&W 602s2, CC6 center, dm305rears, b&w
    sub asw2500
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    Samsung SACD/DVDA player
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