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DVD upscaling |
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#1 |
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Forum Member
Join Date: Jul 2005
Posts: 20
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DVD upscaling
Hi, what is the popular opinion about 'upscaling resolutions' ?
Is it better to use 1080i , or does 720p give a better result, or is there no difference !! Cheers. |
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#2 |
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Inactive Member
Join Date: Mar 2010
Posts: 8,622
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Depends entirely on how your tv accepts the input. If 1080i/720p hdtv then you just try either and see how it works. If the tv supports 1080p then in theory sending it 1080p creates the most direct feed. Basically the more conversions the video has to go through the worse.
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#3 |
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Forum Member
Join Date: Sep 2004
Posts: 14,718
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Quote:
Hi, what is the popular opinion about 'upscaling resolutions' ?
Is it better to use 1080i , or does 720p give a better result, or is there no difference !! Cheers. |
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#4 |
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Forum Member
Join Date: Jul 2005
Posts: 20
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Thanks Guys,for your replies. The reason I asked the question
was, that not knowing how the actual process works, (other than, I guess just adding extra lines by interpolating) I wondered if there was a good technical reason which favoured one system. You are right ,of course 'bobcar' ,what ever you personally think is the best ...is the best.! Cheers. |
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#5 |
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Forum Member
Join Date: Apr 2006
Location: North Derbyshire
Posts: 41,782
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Quote:
Thanks Guys,for your replies. The reason I asked the question
was, that not knowing how the actual process works, (other than, I guess just adding extra lines by interpolating) I wondered if there was a good technical reason which favoured one system. You are right ,of course 'bobcar' ,what ever you personally think is the best ...is the best.! Cheers. As suggested, try all the options, and pick which YOU prefer. |
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#6 |
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Forum Member
Join Date: Jul 2005
Location: Herts
Posts: 17,003
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Quote:
Thanks Guys,for your replies. The reason I asked the question
was, that not knowing how the actual process works, (other than, I guess just adding extra lines by interpolating) I wondered if there was a good technical reason which favoured one system. You are right ,of course 'bobcar' ,what ever you personally think is the best ...is the best.! Cheers. |
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#7 |
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Forum Member
Join Date: Jul 2005
Posts: 20
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Thanks 'soulboy77' you have touched on something that relates to why I asked the question 'the upscaling process'.
You talk about the quality of the chips in the upscaling process. So how does the 'high quality' processing' show itself in terms of the result? Does it mean that it can upscale to a greater number of lines with less noise, so it could produce a 'good approximation in 1080 p to HD (but of course never matching HD) Cheers. |
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#8 |
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Forum Member
Join Date: Apr 2006
Location: North Derbyshire
Posts: 41,782
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Quote:
Thanks 'soulboy77' you have touched on something that relates to why I asked the question 'the upscaling process'.
You talk about the quality of the chips in the upscaling process. So how does the 'high quality' processing' show itself in terms of the result? Does it mean that it can upscale to a greater number of lines with less noise, so it could produce a 'good approximation in 1080 p to HD (but of course never matching HD) Cheers. What better scalers do is introduce less artifacts to the picture, and the less artifacts the better the SD picture is. |
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#9 |
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Forum Member
Join Date: May 2006
Posts: 25,199
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The HD information is simply not there, so it will never look like a proper good quality HD signal. HD TV sets are pretty good with HD signal, SD signal is where they differ more, so having a good upscaler in DVD player is nice. But I have a feeling manufacturers are using it as a gimmick and people are expecting miracles from it.
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#10 |
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Forum Member
Join Date: Jul 2005
Posts: 20
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Nigel, re your latest input, just to make sure I understand, are you saying that what 'upscaling' does is fit the resolution of the picture to the'native resolution' of the screen , adding the necessary number of lines by interpolation.
Thanks also for your input 'ivan IV' |
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#11 |
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Forum Member
Join Date: Jul 2005
Posts: 20
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Hi , have just found the follwing website that gives a very good explanation of 'upscaling'..... If I had seen this first I would not
have 'posted' my question cheers http://hometheater.about.com/od/blur...urayhddvd2.htm |
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#12 |
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Inactive Member
Join Date: Mar 2010
Posts: 8,622
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Quote:
Nigel, re your latest input, just to make sure I understand, are you saying that what 'upscaling' does is fit the resolution of the picture to the'native resolution' of the screen , adding the necessary number of lines by interpolation.
Thanks also for your input 'ivan IV' |
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#13 |
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Forum Member
Join Date: Apr 2006
Location: North Derbyshire
Posts: 41,782
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Quote:
Nigel, re your latest input, just to make sure I understand, are you saying that what 'upscaling' does is fit the resolution of the picture to the'native resolution' of the screen , adding the necessary number of lines by interpolation.
Thanks also for your input 'ivan IV' As others have said, 'upscaling' has become a marketing term, conning the gullible into thinking it gives them HD - when it does no such thing. I think it was Toshiba who started advertising an 'upscaling' TV - ALL HDTV's do that
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