LoginRegister
Nintendo Wii / Wii U Forum
+ Reply to Thread
Page 1 of 2 1 2 LastLast
Results 1 to 10 of 13

Thread: 1080p/i?

  1. #1
    WiiChat Member SensesFail's Avatar
    Member #
    23415
    Join Date
    May 2007
    Location
    Ohio
    Posts
    1,780
    Friends
    6
    Wii Friend Code: $post[field5]

    1080p/i?

    whats the difference? i know 1080p is better, i think, but how much? i ask because my hitachi 52" T.V. doesnt seem to support 1080p, it goes black when i switch it to that, but 1080i works fine, and looks great.


    Gamertag/PSN ID=SensesFailxWiix if you add me send me a message via console or wiichat

  2. Ads


  3. #2
    Gearhead Surf Coder [DT]'s Avatar
    Member #
    33107
    Join Date
    Aug 2007
    Location
    Vilano Beach, FL
    Posts
    1,329
    Friends
    0
    Wii Friend Code: $post[field5]
    There's a great thread about this in the main forum area, something like "I got a new HDTV" - loads of good info (you can pretty easily discern the BS from the facts).

    Very briefly I = Interlaced, P = Progressive (think non-interlaced)

    When you talk about a TV generating X frames per second, in a P based set, an entire frame reference is drawn for each of those. So for example a set that generates 30 FPS Progressive is drawing 30 FULL frames every second.

    An Interlaced set - using the same metric - draws 1/2 of the frame during the first 1/2 of frame reference, and the other 1/2 during the later part.

    So it's generating 60 *fields* per second, to make up the 30 frames per second. Since a single viewable frame is drawn in two parts, there can be a little flicker as the first 1/2 of the frame fades (while the 2nd 1/2 is being drawn). Under fast motion, there can also be some leading/trailing edge artifacts because of the same reason.

    In the end analysis, you're still talking about 1080H lines, but two different ways to render them. In general, a P scan produces a more solid frame, but in motion, it's barely detectable.
    "I want to be more like the ocean, no talking, all action"
    - Jane's Addiction

    "Ga-blaaaaagh!!"
    - Liliane Eva

    "The grammar corrections around here are officially old and tired."
    - Celeste

  4. #3
    Banned Sovieto's Avatar
    Member #
    883
    Join Date
    Aug 2006
    Posts
    6,586
    Friends
    4
    Wii Friend Code: $post[field5]
    Quote Originally Posted by [DT]
    There's a great thread about this in the main forum area, something like "I got a new HDTV" - loads of good info (you can pretty easily discern the BS from the facts).

    Very briefly I = Interlaced, P = Progressive (think non-interlaced)

    When you talk about a TV generating X frames per second, in a P based set, an entire frame reference is drawn for each of those. So for example a set that generates 30 FPS Progressive is drawing 30 FULL frames every second.

    An Interlaced set - using the same metric - draws 1/2 of the frame during the first 1/2 of frame reference, and the other 1/2 during the later part.

    So it's generating 60 *fields* per second, to make up the 30 frames per second. Since a single viewable frame is drawn in two parts, there can be a little flicker as the first 1/2 of the frame fades (while the 2nd 1/2 is being drawn). Under fast motion, there can also be some leading/trailing edge artifacts because of the same reason.

    In the end analysis, you're still talking about 1080H lines, but two different ways to render them. In general, a P scan produces a more solid frame, but in motion, it's barely detectable.
    to sum it all up: 1080p is better, its the highest resolution HDTVs can go right now, and 1080i is identical to 720p from what I can tell.

    Everything in this signature except for this text was made by Wiired, he is my creator and almighty.

  5. #4
    Gearhead Surf Coder [DT]'s Avatar
    Member #
    33107
    Join Date
    Aug 2007
    Location
    Vilano Beach, FL
    Posts
    1,329
    Friends
    0
    Wii Friend Code: $post[field5]
    Quote Originally Posted by Sovieto
    and 1080i is identical to 720p from what I can tell.
    1080 != 720

    (I'm not sure where you got that...)
    "I want to be more like the ocean, no talking, all action"
    - Jane's Addiction

    "Ga-blaaaaagh!!"
    - Liliane Eva

    "The grammar corrections around here are officially old and tired."
    - Celeste

  6. #5
    Banned Sovieto's Avatar
    Member #
    883
    Join Date
    Aug 2006
    Posts
    6,586
    Friends
    4
    Wii Friend Code: $post[field5]
    Quote Originally Posted by [DT]
    1080 != 720

    (I'm not sure where you got that...)
    ???
    dont quite understand your post but if you're wondering where i got that 1080i/720p comparison.. i got it from my own HDTV, from switching between the 2.

    Everything in this signature except for this text was made by Wiired, he is my creator and almighty.

  7. #6
    WiiChat Member SensesFail's Avatar
    Member #
    23415
    Join Date
    May 2007
    Location
    Ohio
    Posts
    1,780
    Friends
    6
    Wii Friend Code: $post[field5]
    thanks for the help DT, i understand a little better now.

    so basically the images will LOOK the same but when watching you may see the occasionaly blur/flicker type thing? i just want to make sure im not missing out on any noticeable graphical changes, my TV is about 3-4 years old, just checking it's not outdated yet lol.

    okay and i have another question, my NON HDTV has component hook up in the back, it does make it look a little sharper when playing 360/PS3, but what is the difference? does it display 480i or p? it's a 27" Sanyo flat screen TV if that helps.


    Gamertag/PSN ID=SensesFailxWiix if you add me send me a message via console or wiichat

  8. #7
    Gearhead Surf Coder [DT]'s Avatar
    Member #
    33107
    Join Date
    Aug 2007
    Location
    Vilano Beach, FL
    Posts
    1,329
    Friends
    0
    Wii Friend Code: $post[field5]
    Quote Originally Posted by Sovieto
    ???
    dont quite understand your post but if you're wondering where i got that 1080i/720p comparison.. i got it from my own HDTV, from switching between the 2.

    Do you have an LCD, Plasma or DLP? (i.e., not a CRT based set?)
    "I want to be more like the ocean, no talking, all action"
    - Jane's Addiction

    "Ga-blaaaaagh!!"
    - Liliane Eva

    "The grammar corrections around here are officially old and tired."
    - Celeste

  9. #8
    Gearhead Surf Coder [DT]'s Avatar
    Member #
    33107
    Join Date
    Aug 2007
    Location
    Vilano Beach, FL
    Posts
    1,329
    Friends
    0
    Wii Friend Code: $post[field5]
    Quote Originally Posted by SensesFail
    thanks for the help DT, i understand a little better now.

    so basically the images will LOOK the same but when watching you may see the occasionaly blur/flicker type thing? i just want to make sure im not missing out on any noticeable graphical changes, my TV is about 3-4 years old, just checking it's not outdated yet lol.

    okay and i have another question, my NON HDTV has component hook up in the back, it does make it look a little sharper when playing 360/PS3, but what is the difference? does it display 480i or p? it's a 27" Sanyo flat screen TV if that helps.
    Yeah, 1080 is 1080, just the rendering method changes - *maybe* some flicker, but most of the differences are very slight. Our older Toshiba in the bedroom is a 42" CRT based projector, and it still looks amazing (it supports 1080i). In fact it looks better on SD than the newer Sony LCD!

    It may support 480P (same logic as I vs. P above) - component interfaces isolate the Chroma and Luma so there's not as much "crosstalk" in the signal - usually this means cleaner color (less cross saturation and such). Always worth doing it when possible. We have an older Pioneer Elite P-scan DVD player that looks amazing on the Toshiba running 480P via component.
    "I want to be more like the ocean, no talking, all action"
    - Jane's Addiction

    "Ga-blaaaaagh!!"
    - Liliane Eva

    "The grammar corrections around here are officially old and tired."
    - Celeste

  10. #9
    Banned Sovieto's Avatar
    Member #
    883
    Join Date
    Aug 2006
    Posts
    6,586
    Friends
    4
    Wii Friend Code: $post[field5]
    Quote Originally Posted by [DT]
    Do you have an LCD, Plasma or DLP? (i.e., not a CRT based set?)
    LCD, its probably just because its a 27" one, too small for me to notice a difference?

    Everything in this signature except for this text was made by Wiired, he is my creator and almighty.

  11. #10
    Gearhead Surf Coder [DT]'s Avatar
    Member #
    33107
    Join Date
    Aug 2007
    Location
    Vilano Beach, FL
    Posts
    1,329
    Friends
    0
    Wii Friend Code: $post[field5]
    Quote Originally Posted by Sovieto
    LCD, its probably just because its a 27" one, too small for me to notice a difference?
    Yeah, you're right, though a 27" is a pretty nice set, so I wouldn't sweat that too much (especially if you're not sitting 12 feet away). There's a couple of things at work:

    1) LCD's are fixed resolution, so the "native" rez, is the only output spec - however it can take in different source signals - so your 720's and 1080's all come out to X (whatever your native mode is).

    Now you would think that an input signal that matches the native output would be optimum, but there are a surprising number of people who say they prefer a downsamples 1080 (I think it's more the variation in source quality, like an MEPG2 vs. an MPEG4 transport, but go figure).

    The other thing is +where+ the conversion takes place - we can set our STB to pass through the signal (in which case the set converts it) or allow the STB to convert it to the native set spec. The Sony, does a better job of converting non-native signals for sure. The Toshiba seems to be a wash.

    2) You really don't start seeing the difference in 720 vs. 1080 till you get to larger sets - there's no set standard, but I'd say that 42-50" is the breakpoint.
    "I want to be more like the ocean, no talking, all action"
    - Jane's Addiction

    "Ga-blaaaaagh!!"
    - Liliane Eva

    "The grammar corrections around here are officially old and tired."
    - Celeste

Ads

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts