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Forum: Display Calibration   09-24-2016, 01:59 PM
Replies: 930
Views: 71,734
Posted By sspears
Hi Mark, Yes, planning on adding an...

Hi Mark,

Yes, planning on adding an alternate A/V sync pattern for a device designed to measure A/V sync. Thank you for the feedback.

The current AV sync is available in both DTS-HD MA and...
Forum: Display Calibration   09-23-2016, 11:21 PM
Replies: 930
Views: 71,734
Posted By sspears
2D Ghosting? Like blooming from zone based back...

2D Ghosting? Like blooming from zone based back lighting?

The only ghosting test we have is for 3D. The UHD HDR BD will have some tests for zone based backlighting. Thats a year away though. Hard...
Forum: AVS Forum® Podcasts   08-23-2016, 12:41 PM
Replies: 53
Views: 1,618
Posted By sspears
I have seen people comment that they think HDR...

I have seen people comment that they think HDR makes noise/grain more obvious. I don't know if it does or not. Have not spent any time on that specific issue. I do know that Ghostbusters is pretty...
Forum: AVS Forum® Podcasts   08-23-2016, 11:56 AM
Replies: 53
Views: 1,618
Posted By sspears
Did you want the objects on a white background...

Did you want the objects on a white background like the image? Foam core should work for that. I have plenty of color charts too. I will use the Otus lenses since they are sharp. I will also use my...
Forum: AVS Forum® Podcasts   08-23-2016, 11:52 AM
Replies: 53
Views: 1,618
Posted By sspears
Ray, I quickly glanced at your text and then...

Ray, I quickly glanced at your text and then looked at the images. I don't know if you say which is which, but the top image looks sharper to me. At least in the trees. Which one is that? Tyler and I...
Forum: AVS Forum® Podcasts   08-21-2016, 07:09 PM
Replies: 53
Views: 1,618
Posted By sspears
I hope to have a Z9 in couple of weeks. I have...

I hope to have a Z9 in couple of weeks. I have not seen it yet.



Do you have a colorimeter and calibration software? If so, you should be able to adjust white balance.



We have the 940C...
Forum: AVS Forum® Podcasts   08-21-2016, 06:04 PM
Replies: 53
Views: 1,618
Posted By sspears
Projection, like edge lit LCDs, stand to benefit...

Projection, like edge lit LCDs, stand to benefit the most from dynamic metadata. The data that will help the panel turn up and down the backlight can also be used to open and close the DI.

CEDIA...
Forum: AVS Forum® Podcasts   08-21-2016, 05:53 PM
Replies: 53
Views: 1,618
Posted By sspears
That is a great question! I don't know the...

That is a great question! I don't know the answer.

One question that must be asked is will UHD BD even support ST2094?
Forum: AVS Forum® Podcasts   08-21-2016, 05:24 PM
Replies: 53
Views: 1,618
Posted By sspears
I am trying to think of a better way to describe...

I am trying to think of a better way to describe this. I think we should drop HDR10 and just say HDR, which is what UHD BD has done.

For a display to playback HDR, they need to implement the...
Forum: AVS Forum® Podcasts   08-21-2016, 01:38 PM
Replies: 53
Views: 1,618
Posted By sspears
There is a difference between Dolby Vision and...

There is a difference between Dolby Vision and HDR10 supporting front projection and a projector manufacturer claiming they support HDR. Until Dolby Vision and HRD10 define how a projection system...
Forum: AVS Forum® Podcasts   08-20-2016, 11:49 PM
Replies: 53
Views: 1,618
Posted By sspears
Dolby came up with 10,000 nits based on...

Dolby came up with 10,000 nits based on experiments they conducted with test subjects over many years. It is not an arbitrary number they picked.

While I have not seen 10,000 nits myself, I can...
Forum: AVS Forum® Podcasts   08-20-2016, 07:51 PM
Replies: 53
Views: 1,618
Posted By sspears
Joe, Yes, they will mostly be using HEVC and...

Joe,

Yes, they will mostly be using HEVC and yes, you can have variable block sizes.

With H.264, a macroblock is 16x16 and you can have variable block sizes inside of that. I was using a 16x16...
Forum: AVS Forum® Podcasts   08-20-2016, 07:37 PM
Replies: 53
Views: 1,618
Posted By sspears
Pablo, If you want to see some examples of...

Pablo,

If you want to see some examples of tone mapping on HDR. First, here is an iPhone pic of an SDR and HDR split using butterfly style....
Forum: AVS Forum® Podcasts   08-20-2016, 07:14 PM
Replies: 53
Views: 1,618
Posted By sspears
I don't agree with your assertion. If you think...

I don't agree with your assertion. If you think it is useless for you, then I value, and respect, your opinion. I do not think it is fair to make a statement like that for anyone other than yourself....
Forum: AVS Forum® Podcasts   08-20-2016, 03:05 PM
Replies: 53
Views: 1,618
Posted By sspears
So I would google cross-bilateral filtering. Here...

So I would google cross-bilateral filtering. Here is one (http://people.csail.mit.edu/sparis/publi/2009/fntcgv/Paris_09_Bilateral_filtering.pdf) example;

What you are looking for can be found in...
Forum: AVS Forum® Podcasts   08-20-2016, 02:24 PM
Replies: 53
Views: 1,618
Posted By sspears
It was just a basic article on blateral...

It was just a basic article on blateral filtering. Not sure if I have it anymore. You can google bilateral filtering and find lots of information on it.



Yes, that is the area that is being...
Forum: AVS Forum® Podcasts   08-19-2016, 09:04 PM
Replies: 53
Views: 1,618
Posted By sspears
We develop the software and tools for others to...

We develop the software and tools for others to use. If I were actively writing reviews right now, I would publish the results. The luminance vs. window size is just one piece of data. That by itself...
Forum: AVS Forum® Podcasts   08-19-2016, 08:40 PM
Replies: 53
Views: 1,618
Posted By sspears
What I am calling chroma bug 2020 or CUE 2020...

What I am calling chroma bug 2020 or CUE 2020 would result in a vertical half pixel shift. It would be like the nearest neighbor artifact in the image below, but in the vertical direction, not...
Forum: AVS Forum® Podcasts   08-19-2016, 08:37 PM
Replies: 53
Views: 1,618
Posted By sspears
I had suggested a new idea for chroma upsampling...

I had suggested a new idea for chroma upsampling to Mathias and sent him a paper. He worked with someone else to implement that idea. It is the state of the art in chroma upsampling. They are still...
Forum: LCD Flat Panel Displays   05-24-2016, 12:29 PM
Replies: 22,081
Views: 1,699,555
Posted By sspears
In Joe's (Kane) Home Theater Geeks podcast he...

In Joe's (Kane) Home Theater Geeks podcast he talks about seeing banding in PQ and thinks that 10-bit SDR is better. I am wondering if it is because he has the HDMI UHD Color set to off. I am hoping...
Forum: LCD Flat Panel Displays   05-23-2016, 10:20 AM
Replies: 22,081
Views: 1,699,555
Posted By sspears
To qualify my comment about the gamut being...

To qualify my comment about the gamut being compressed. In HDR, most displays correctly remap the gamut outside of their capability into their capability with a roll-off / remap. (No standard for...
Forum: Display Calibration   05-16-2016, 10:07 AM
Replies: 930
Views: 71,734
Posted By sspears
Just to add to what Ted said, in a worst case you...

Just to add to what Ted said, in a worst case you would need a memory for:

SDR HD 709 and SDR UHD 709. Same memory should work for both
SDR UHD 2020
HDR10 UHD 2020
Dolby Vision
Forum: Display Calibration   05-15-2016, 04:02 PM
Replies: 930
Views: 71,734
Posted By sspears
HDR changes everything. For SDR UHD, it can be...

HDR changes everything. For SDR UHD, it can be 709 or 2020. For 709, current disc mostly works. The Sharpness pattern is being scaled, which makes it more difficult to use.

CalMAN supports HDR as...
Forum: High Dynamic Range (HDR) & Wide Color Gamut (WCG)   04-25-2016, 05:54 PM
Replies: 352
Views: 21,183
Posted By sspears
If you are asking if a consumer display can use...

If you are asking if a consumer display can use the same technique as Dolby to achieve greater bit depth than the native, then yes, of course.
Forum: High Dynamic Range (HDR) & Wide Color Gamut (WCG)   04-25-2016, 05:30 PM
Replies: 352
Views: 21,183
Posted By sspears
The demo was on the Dolby PRM, which is a grading...

The demo was on the Dolby PRM, which is a grading monitor. It's around $40k. The Pulsar is not for sale and is only loaned out to studios to use.
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