

The war of words continues





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RE: De-interlacing
By DallasTexas on 8/16/2006 10:59:37 AM , Rating: 0
Isn't that because your typical PC monitor does not do upconversion , while a 1080p television does? If you render on a computer monitor, I suppose your argument might hold but I don't know enough to form an opinion. However, for TV's, the MS argument is true.

RE: De-interlacing
By s12033722 on 8/16/2006 11:37:18 AM , Rating: 3
If the source was recorded in 1080p, there is no upconversion. MS's statement is only true for 1080i recordings. 1080p has twice the actual content. That being said, I think they are likely correct about both consoles being better suited to targetting 720p. I will probably not buy either, but rather get a wii, and I do have a 1080p television. I just like the idea of new and interesting gameplay more than the same stuff over with better graphics. If I want 1080p game graphics, I just hook my PC up to the tv.

RE: De-interlacing
By Trisped on 8/16/2006 11:58:20 AM , Rating: 2
PC monitors don't do up conversion, but the computers do. Just take a small movie file and open it in Windows Media Player and set it to scale with the size of the window, then adjust the window so it is really small and really big. You will see an amount of distortion, but not squares that are now made up of 4-16 pixels.

The problem with up converting is that the video processor must guess what the missing pixels are supposed to be. If you read some of the Anand Tech reviews of video cards they talk about it, and the older review have comparisons that clearly show the differences.

So what does this all mean for PS3? If movies are recorded in 1080p, then PS3 will have a better picture. It may not be a huge improvement over an unconverted 1080i, but it will be clearer and cleaner. But, with the HD movies compressed so much already, and designed to output 720p and 1080p it is possible that some corners were cut, so a 1080p signal may not be a true 1080p recorded signal. In this case it would probably fall somewhere between a true 1080p picture and an up scaled 1080i image quality.

What does this mean? If you have a display device capable of receiving and displaying a 1080p signal, and you are buying movies formatted in 1080p, then you will receive a benefit. If you are missing any of those, the you will find no advantage.

RE: De-interlacing
By DallasTexas on 8/16/06, Rating: -1
RE: De-interlacing
By masher2 (blog) on 8/16/2006 12:37:35 PM , Rating: 3
> "The problem with up converting is that the video processor must guess...if movies are recorded in 1080p, then PS3 will have a better picture. It may not be a huge improvement over an unconverted 1080i"

You're confusing upconversion with deinterlacing. A signal digitized properly can be deinterlaced with zero loss of image quality. Upconversion is a different matter entirely, and involves interpolation of missing pixels.

You can run into cases where a video stream has been improperly encoded (particularly when performing 3-2 pulldown to an NTSC signal) that will cause the video processor to improperly deinterlace and cause some loss of image quality, but this isn't an issue in the general case.

RE: De-interlacing
By glennpratt on 8/16/2006 12:47:45 PM , Rating: 2
Deinterlacing is never perfect as far as I know. Matching odd and even fields from adjacent frames is extremely likely to produce artifacts, even if it is just ocasionally or not noticeable.

RE: De-interlacing
By masher2 (blog) on 8/16/2006 1:21:52 PM , Rating: 3
Deinterlacing is perfect when you're reinterweaving material interlaced through 3-2 pulldown. You're just reversing the process, so you wind up with data identical to the original.

When you're dealing with material interlaced for broadcast via NTSC or otherwise (or material improperly marked as such) its a whole different ballgame. In that case, you're going to get interlaced artifacts galore, as the video processor has to guess which fields go with which frames.

RE: De-interlacing
One thing to keep in mind about the 1080p NTSC standards:



RE: De-interlacing


