http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/ Engadget HD Comments for Still no discernable difference between 1080i and 1080p? http://hd.engadget.com/media/feedlogo.gif http://hd.engadget.com en-us Copyright 2009 Weblogs, Inc. The contents of this feed are available for non-commercial use only. Blogsmith http://www.blogsmith.com/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/
The value point for most consumers though remains 720p until sets get big enough to warrant the higher resolution / cost.]]>Nov 13th 2006 1:12AMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/Nov 13th 2006 1:12AMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/
And, i can notice a difference (786 vs 1080) on my 40 inch 1080p LCD with the feed coming from a PC... the difference is real. And, so just about resolution, but, gradations from light to dark which improves contrast.

And, the proper test is look at the different resolutions on the same panel (or from the same range from the same manufacturer). Otherwise, there are too many confounding issues that will influence the result (contrast etc).]]>Nov 13th 2006 1:32AMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/Nov 13th 2006 2:25AMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/I think when you play games at 50-60fps of watch sports the difference are a lot bigger. ]]>Nov 13th 2006 5:14AMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/Nov 13th 2006 5:15AMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/
Alternatively, send a 1080P signal out of a source and accepting as 1080P and displaying it as 1080P is a heck of a lot easier to do. Makes no difference if this is 24fps, or 50-60Hz. As soon as you force the display device to deinterlace and temporal transcode then you are asking for a lot of processing artifacts in the end result.

Of course, Joe Six-Pack will not understand this.]]>Nov 13th 2006 5:26AMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/Nov 13th 2006 6:42AMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/Nov 13th 2006 8:22AMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/Nov 13th 2006 8:48AMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/
Your blog post should be "no difference between 720p and 1080p," not 1080i and 1080p.

There is no "discernable difference" between 1080i and 1080p for 2 reasons: first, 1920x1080/60i signals (with good equipment) are deinterlaced to 1920x1080/30p, and second, because there are no televisions that natively display BOTH 1080i and 1080p. A set can ACCEPT both signals, but there are no sets that have a DISPLAY that does both. A display is EITHER 1080i (CRT-RP) OR 1080p (LCD, PDP, or DLP). Thus, a 1080i signal displayed on a CRT-rear projection (with a good deinterlacer) will look no different (in terms of detail) than a 1080i or 1080p signal displayed on a 1080p flat panel. Both sets are giving you all 1920x1080 resolution--its just that one is doing it by interlacing two 540 line fields, while the other is displaying one 1080 line field.

1080p is being touted right now because it is the only vehicle that FLAT-PANEL and DLP manufacturers have for showing all 2 million pixels in a 1920x1080 signal. On a 720p set, the 1080i signal is scaled to 1280x720 (so it can be shown on the display without cropping), and then deinterlaced. But a lot of visual information gets thrown out in that process.

What CNet did was compared 720p panels against 1080p panels, not 1080i CRT sets vs. 1080p flat panels. And what they found was that there wasn't a discernable difference in detail present for most sources.]]>Nov 13th 2006 8:59AMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/Nov 13th 2006 9:00AMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/
Come on over to www.avsforum.com and read all about it.]]>Nov 13th 2006 11:59AMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/
http://www.samsung.com/Products/DVDPlayer/Blu_ray/BD_P1000XAA.asp]]>Nov 13th 2006 2:22PMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/
The above mentioned unoticeable differences are typical with pygmy size screens :)
]]>Nov 13th 2006 12:23PMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/Nov 13th 2006 3:00PMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/
I knew there was a reason why I stopped reading the CNet site & stoppped watching their reviews that I agreed to download to my TiVo.

Now we can say, quite fashionably (and accurately) : "Consumer Reports shuold stick to reviewing Toasters", but what would be a similarly appropriate put-down for these tech-unsavvy CNet folks? :)]]>Nov 13th 2006 2:53PMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/
TK]]>Nov 13th 2006 3:43PMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/Nov 14th 2006 2:30AMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/Nov 14th 2006 4:30PMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/Nov 20th 2006 9:25AMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/
1. With a few specialized exceptions (Sony HDCAM-SR, Panasonic HVX200/HPX2100), virtually no current broadcast camera/recording systems acquire their HD signals in 1080p. It's either 1080i or 720p. And certainly, no one currently broadcasts 1080p material yet. The most common HDTV acquisiton system in the U.S. (the $90,000 Sony CineAlta HDW-F900) only records in 1080i. The second-most common HDTV acquisiton system in the U.S. (Panasonic Varicam) acquires only in 720p.

2. As for 35mm film-originated, theatrical-release features, my question is: is the digital telecine mastering process for commercial replication of such content (for either HD-DVD or BluRay DVDs) even encoded at 1080p?

3. So, as always, I ask, "What is both the spatial and temporal resolution of the originating acquisition system used to produce the source material used when 'evaluating' these various display systems?" Of course, no one ever knows.]]>Dec 31st 2006 5:26AMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/Dec 31st 2006 5:32AMhttp://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://hd.engadget.com/2006/11/13/still-no-discernable-difference-between-1080i-and-1080p/http://www.avreview.co.uk/news/article/mps/UAN/791/v/1/sp/
hdmi 1.3]]>Jan 3rd 2007 3:08AM