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Forum: Latest Industry News   01-26-2015, 07:54 AM
Replies: 565
Views: 28,561
Posted By GregLee
Now that we know UHD BD (or whatever the term is)...

Now that we know UHD BD (or whatever the term is) will provide for HDR, I'm much encouraged. I never thought 4k was a big deal, but HDR, with or without 4k, will be wonderful. Some new premium TVs...
Forum: OLED Technology and Flat Panels General   01-20-2015, 04:49 PM
Replies: 77
Views: 2,508
Posted By GregLee
I'll have an opinion when I actually see Dolby...

I'll have an opinion when I actually see Dolby Vision. But Dolby Vision demos have been reported on by a number of AV journalists, and reviews have been uniformly positive. So I'm hopeful.
Forum: OLED Technology and Flat Panels General   01-20-2015, 10:00 AM
Replies: 215
Views: 5,568
Posted By GregLee
High fidelity is about faithful reproduction of a...

High fidelity is about faithful reproduction of a scene, not of a signal. The rational for wide color gamuts is that scenes really have those gamuts, cameras can capture them, and we can perceive...
Forum: OLED Technology and Flat Panels General   01-18-2015, 08:49 AM
Replies: 215
Views: 5,568
Posted By GregLee
This discomfort, or even temporary blinding, is...

This discomfort, or even temporary blinding, is caused when a change in light level exceeds our eyes' ability to adapt. But the eye does not adapt to the brightest parts of scenes, but rather to the...
Forum: Latest Industry News   01-13-2015, 01:32 PM
Replies: 2,125
Views: 73,643
Posted By GregLee
But it's not the angle from the side that I have...

But it's not the angle from the side that I have a problem with. It's the angle from above. When I'm sitting watching my Samsung 4K, it's no problem. However, when I stand up, the picture goes gray...
Forum: Latest Industry News   01-10-2015, 10:13 AM
Replies: 54
Views: 2,731
Posted By GregLee
They are similar in intent, but DV is about...

They are similar in intent, but DV is about implementation rather than standards. For instance, as of a couple of years ago, DV documents were talking about extending 10-bit depth video to 12-bit...
Forum: Latest Industry News   01-09-2015, 03:00 PM
Replies: 2,125
Views: 73,643
Posted By GregLee
So far as I can tell, all the "scientific"...

So far as I can tell, all the "scientific" calculations about pixel density, distance from display, and visual acuity are ignoring color. Even when there is no variation in luminance at all on a...
Forum: Latest Industry News   01-09-2015, 12:38 PM
Replies: 54
Views: 2,731
Posted By GregLee
True. Here is a promotional video from Dolby on...

True. Here is a promotional video from Dolby on Dolby Vision:
https://www.youtube.com/watch?v=DPSV84T7wiA
https://www.youtube.com/watch?v=DPSV84T7wiA
Forum: Latest Industry News   01-09-2015, 08:20 AM
Replies: 54
Views: 2,731
Posted By GregLee
Here is a nice article from a year ago about the...

Here is a nice article from a year ago about the Dolby version of HDR: http://www.theverge.com/2014/1/6/5276934/dolby-vision-the-future-of-tv-is-really-really-bright. And here's an update article:...
Forum: Latest Industry News   01-07-2015, 06:40 PM
Replies: 2,125
Views: 73,643
Posted By GregLee
I don't think so. If we had results from...

I don't think so. If we had results from controlled experiments which score test subjects on this specific task of discriminating 1080p and 4k displays at 10 feet, and other vision tests of these...
Forum: Latest Industry News   01-07-2015, 12:38 PM
Replies: 2,125
Views: 73,643
Posted By GregLee
A "range" in this context would ordinarily...

A "range" in this context would ordinarily include the endpoints, so in my opinion, your example is still doing interpolation. However, now I think your meaning is clear.

Since at normal viewing...
Forum: Latest Industry News   01-07-2015, 09:38 AM
Replies: 2,125
Views: 73,643
Posted By GregLee
I didn't try to follow the code. Maybe you could...

I didn't try to follow the code. Maybe you could just explain to us why your example does not use interpolation: "In the mathematical field of numerical analysis, interpolation is a method of...
Forum: Latest Industry News   01-05-2015, 10:08 AM
Replies: 2,125
Views: 73,643
Posted By GregLee
I don't see any facts there. What is the...

I don't see any facts there. What is the definition of contrast, anyway?
How do you reach the conclusion that the screenshots given show that contrast is reduced?

Here is an example...
Forum: Latest Industry News   01-03-2015, 12:04 AM
Replies: 2,125
Views: 73,643
Posted By GregLee
Preserving information is not the same as...

Preserving information is not the same as faithful reproduction of natural scenes, because smoothness predominates. It would be the same if we were viewing random dot arrays. That is, when a scaler...
Forum: Latest Industry News   12-31-2014, 10:05 AM
Replies: 2,125
Views: 73,643
Posted By GregLee
It's not the panels that do that crushing, which...

It's not the panels that do that crushing, which is not due to insufficient brightness, but rather to too few distinguishable levels of brightness. While it is true that 10- or 12-bit panels will be...
Forum: Latest Industry News   12-31-2014, 09:54 AM
Replies: 2,125
Views: 73,643
Posted By GregLee
Here you apparently disagree with Dolby, who...

Here you apparently disagree with Dolby, who argue that current display technology is sufficient for HDR, but it is distribution standards that stand in the way. (Down with 709, up with 2020.)
Forum: Community News & Polls   12-27-2014, 10:28 AM
Replies: 116
Views: 3,278
Posted By GregLee
I don't accept the assumption that if I'm an...

I don't accept the assumption that if I'm an audiophile then I'm limited to only two channels.
Forum: Community News & Polls   12-27-2014, 10:22 AM
Replies: 166
Views: 6,319
Posted By GregLee
My answer: No, I already have an immersive format...

My answer: No, I already have an immersive format for music, with front wide speakers and Dolby height speakers. (There was no appropriate poll answer for me.)
Forum: Latest Industry News   11-11-2014, 10:16 AM
Replies: 41
Views: 8,043
Posted By GregLee
Since the intended purpose of a TV set is to be...

Since the intended purpose of a TV set is to be watched by a human, you would expect the testing of TVs to involve prominently human perception of the TV images. That doesn't seem to be the case for...
Forum: OLED Technology and Flat Panels General   10-13-2014, 10:39 AM
Replies: 730
Views: 53,271
Posted By GregLee
That would be bad luck. Who wants to see pixels?...

That would be bad luck. Who wants to see pixels? It's not what I watch TV for.
Forum: Latest Industry News   09-18-2014, 04:22 AM
Replies: 129
Views: 13,385
Posted By GregLee
Amazon's latest model of the Kindle Fire 8.9",...

Amazon's latest model of the Kindle Fire 8.9", due out Oct. 21, is advertised as having Dolby Atmos. It has only stereo speakers, so I don't see the point. ...
Forum: OLED Technology and Flat Panels General   09-16-2014, 09:37 PM
Replies: 2
Views: 442
Posted By GregLee
There's nothing to pack. Color space is...

There's nothing to pack. Color space is determined by how a video camera translates colors to RGB values and how a TV converts RGB values to colors. A wide gamut video color signal need have no...
Forum: Latest Industry News   09-06-2014, 10:52 AM
Replies: 565
Views: 28,561
Posted By GregLee
All that 4k blu-ray has to do to use rec.2020...

All that 4k blu-ray has to do to use rec.2020 wide-gamut color is make room for a header at the beginning of a video saying I-use-a-2020-gamut, if I'm understanding things right. That is, it's a...
Forum: Latest Industry News   09-06-2014, 08:01 AM
Replies: 565
Views: 28,561
Posted By GregLee
Another whole year before they can agree on a...

Another whole year before they can agree on a spec? Too long. If they really intended to do it, we'd already have the spec. I think this means that nobody can foresee a profit in 4k blu-ray, and...
Forum: OLED Technology and Flat Panels General   09-05-2014, 12:40 PM
Replies: 730
Views: 53,271
Posted By GregLee
Yes, and a similar comparison is to consider the...

Yes, and a similar comparison is to consider the light output from an area of the size of one 1080 size pixel on the screen. That area on a 4k or 8k screen will have more pixels, hence more light...
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