The Ultra HD Blu-Ray Specs at CES

[davewantsmoore]

Newman's point is that the ideal FoV for immersion (eg. 35-45 deg)  .... solely dictates the maximum usable resolution.

 

"Maximum usable resolution" is quite relevant to discussing 4k film releases .... because the average punter asks "do I need 4k?"

 

...  as we know most average people do not sit close enough to their screens (especially 16:9 ones) to be in this ideal immersion zone .....   and by relation, at a distance where the increased resolution of 4k can be resolved.

[betty boop]

  On 20/02/2015 at 3:39 AM, davewantsmoore said:

Newman's point is that the ideal FoV for immersion (eg. 35-45 deg)  .... solely dictates the maximum usable resolution.

 

"Maximum usable resolution" is quite relevant to discussing 4k film releases .... because the average punter asks "do I need 4k?"

 

...  as we know most average people do not sit close enough to their screens (especially 16:9 ones) to be in this ideal immersion zone .....   and by relation, at a distance where the increased resolution of 4k can be resolved.

 

its a balance. sit too close to resolve 4K and you see artefacts for 1080p and fta TV at SD will look sh!te. thats the balance to be achieved. its not just a case of hey lets grab 35-45 degrees and you will resolve everything just not the case. We are dealing with multiple formats with various resolution. its why reading the article is worth it. most of us saw this with the move from DVD to blu-ray. the reason why viewing height is discussed is we are talking an aspect ratio and its easily applied with a measuring tape and simple multiplication and used in the industry as rule of thumb. by very default of using the industry suggested multiple of image height for viewing distance you also achieve a pretty decent viewing angle not only for immersion but also to resolve the resolution intended.

 

if people struggle with simple multipliers they can use the calculator or charts below,

 

http://carltonbale.com/does-4k-resolution-matter/

[bhobba]

  On 20/02/2015 at 3:53 AM, :) al said:

its a balance. sit too close to resolve 4K and you see artefacts for 1080p and fta TV at SD will look sh!te. thats the balance to be achieved. its not just a case of hey lets grab 35-45 degrees and you will resolve everything just not the case. We are dealing with multiple formats with various resolution. 

 

Now I have had my 4K TV for a while that's very true.  For upscaled material get too close and it looks pretty bad.  From a distance it looks great - but close - forget it.

 

That said it looks better from my viewing position than my previous HD so I am very happy with it.

 

I have now formed the view this stuff it mostly dependant on the upscaling algorithms.  The current algorithms are way behind the SOTA stuff that hopefully will be implemented soon:

http://www.ijarcce.com/upload/2013/december/IJARCCE4D-s-sreedhar_reddy_enlargement_of.pdf

 

In particular have a look at figure 5 and compare it to the images in figure 6.  In figure 6 the images before upscaling had been deliberately blurred - surprising little difference between the upscaled images.

 

Thanks

Bill

Edited February 20, 2015 by bhobba

[davewantsmoore]

  On 20/02/2015 at 3:53 AM, :) al said:

its a balance. sit too close to resolve 4K and you see artefacts for 1080p and fta TV at SD will look sh!te

 

Yep