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Showing results 1 to 25 of 500
Search took 4.64 seconds. Search: Posts Made By: Simon F
Forum: 3D Hardware, Software & Output Devices 22-May-2013, 10:59
Replies: 257
Views: 20,634
Posted By Simon F
Have moved it to 3D Hardware, Software & Output...

Have moved it to 3D Hardware, Software & Output Devices. Is that better?
Forum: Console Games 22-May-2013, 10:55
Replies: 4
Views: 170
Posted By Simon F
I wish I had the time to play and the space on...

I wish I had the time to play and the space on the memory card :-)
Forum: Video Technology, Displays, & HTPC 21-May-2013, 10:11
Replies: 42
Views: 1,722
Posted By Simon F
Do you remember the arcade VR sets (from...

Do you remember the arcade VR sets (from Virtuality) that were around circa 1991?
SP8wSw4bBuA
Forum: 3D Technology & Algorithms 15-May-2013, 12:09
Replies: 54
Views: 1,827
Posted By Simon F
PING! This topic seems to have gone to sleep. ...

PING! This topic seems to have gone to sleep.

According to wikipedia, the mapping from SSIM to DSSIM is just
DSSIM(image, ref) = (1-SSIMimage, ref))/2

Excuse my ignorance, but in what...
Forum: 3D Technology & Algorithms 10-May-2013, 12:35
Replies: 54
Views: 1,827
Posted By Simon F
May I suggest that you compute RMSE simply as...

May I suggest that you compute RMSE simply as sqrt( Sum (Ri^2+Gi^2+B^i) / N) ? I believe that is more correct and has the added benefit you can use it to compute PSNR if so desired.


Windows or...
Forum: 3D Technology & Algorithms 08-May-2013, 13:40
Replies: 54
Views: 1,827
Posted By Simon F
Oops/ I misread - it's ektar (film) not...

Oops/ I misread - it's ektar (film) not ektachrome (slide), though I guess it doesn't makes a lot of difference if they scan off the negative. It was also 25 speed film so shouldn't have much in the...
Forum: 3D Technology & Algorithms 08-May-2013, 13:22
Replies: 74
Views: 13,286
Posted By Simon F
Note: Texture compression and Quality Metrics...

Note: Texture compression and Quality Metrics related posts have been moved here: http://forum.beyond3d.com/showthread.php?t=63495
Forum: 3D Technology & Algorithms 08-May-2013, 13:15
Replies: 54
Views: 1,827
Posted By Simon F
But at some stage they (or at least some) were...

But at some stage they (or at least some) were scans from ektachrome, weren't they?
Read through some of the links . I see some loss will have occurred in the all the transformations. Still, I...
Forum: Politics & Ethics of Technology 08-May-2013, 11:42
Replies: 213
Views: 3,903
Posted By Simon F
/me wonders if Ms Morissette could include this...

/me wonders if Ms Morissette could include this in a revised version of her song... no that would be ironic.
Forum: 3D Technology & Algorithms 08-May-2013, 10:24
Replies: 54
Views: 1,827
Posted By Simon F
Sorry but what's the problem with the Kodak set? ...

Sorry but what's the problem with the Kodak set?

Oh I see. Oh that's far to subtle for me. You need to put it garish, flashing neon lighting. :wink:. Seriously though, I think it needs to be a...
Forum: Console Forum 07-May-2013, 14:40
Replies: 21
Views: 553
Posted By Simon F
Haven't you guys seen the evidence that it will...

Haven't you guys seen the evidence that it will be the Xbox 360 delta?
Forum: 3D Technology & Algorithms 07-May-2013, 10:59
Replies: 54
Views: 1,827
Posted By Simon F
I'll take a proper look at these when I get a...

I'll take a proper look at these when I get a chance.

I take it that the source image data comes from here (http://www.tecnick.com/public/code/cp_dpage.php?aiocp_dp=testimages)? If so...it...
Forum: 3D Technology & Algorithms 07-May-2013, 10:36
Replies: 54
Views: 1,827
Posted By Simon F
Yes. I knew PSNR (which is just RMSE in sheep's...

Yes. I knew PSNR (which is just RMSE in sheep's clothing) was less than stellar when I was doing texture compression research back at, err, the turn of the century, but didn't have time to look for...
Forum: 3D Technology & Algorithms 03-May-2013, 09:46
Replies: 54
Views: 1,827
Posted By Simon F
It was only the source image that was JPG. The...

It was only the source image that was JPG. The others were PNG. If you really want to create the former, I just used GIMP on the standard 512x512 Lena with cubic downscale.

Bilinear is not a great...
Forum: 3D Technology & Algorithms 02-May-2013, 14:17
Replies: 54
Views: 1,827
Posted By Simon F
I suppose I'm primarily concerned about...

I suppose I'm primarily concerned about power/area because ASTC is huge compared to most TC schemes (with the possible - but I'm not sure about this - exception of BC6/7)


And that is another...
Forum: 3D Technology & Algorithms 01-May-2013, 16:18
Replies: 54
Views: 1,827
Posted By Simon F
Define "efficient"

Define "efficient"
Forum: 3D Technology & Algorithms 01-May-2013, 14:44
Replies: 54
Views: 1,827
Posted By Simon F
Can you explain? I'm keen to learn.

Can you explain? I'm keen to learn.
Forum: Processor & Chipset Technology 11-Apr-2013, 13:00
Replies: 17
Views: 1,384
Posted By Simon F
Many (most?) handheld devices have their own,...

Many (most?) handheld devices have their own, multi-standard, video encoding hardware.
Forum: Processor & Chipset Technology 11-Apr-2013, 12:58
Replies: 17
Views: 1,384
Posted By Simon F
To get high compression rates with h.264, the P...

To get high compression rates with h.264, the P or B frames might be referencing "future" frames so low latency and high compression may be mutually exclusive.
Forum: Handheld Technology 11-Apr-2013, 10:30
Replies: 164
Views: 18,852
Posted By Simon F
Err? If you are saying that 1000 layers of...

Err? If you are saying that 1000 layers of transparent triangles renders slower than 1000 layers of opaque triangles, then, in that sense, alpha blending is "weaker" than not alpha blending, but...
Forum: 3D Technology & Algorithms 10-Apr-2013, 17:35
Replies: 6
Views: 747
Posted By Simon F
From Discworld 2: fczjCi73So8

From Discworld 2:

fczjCi73So8
Forum: Console Games 10-Apr-2013, 11:09
Replies: 914
Views: 50,464
Posted By Simon F
That's certainly what happens for me.... though I...

That's certainly what happens for me.... though I didn't realise, for a while, that the youtube app won't launch if there is a game open.
Forum: General Discussion 26-Mar-2013, 09:55
Replies: 1,033
Views: 24,237
Posted By Simon F
Not in that race. It was a brilliant start.

Not in that race. It was a brilliant start.
Forum: General Discussion 13-Mar-2013, 13:18
Replies: 83
Views: 2,615
Posted By Simon F
The problem here is that common meaning of...

The problem here is that common meaning of "prove" has changed: it used to mean "test". Apply s/prove/test/ on the saying and it will make sense. It's the same case with "The proof of the pudding is...
Forum: 3D Architectures & Chips 12-Mar-2013, 09:18
Replies: 47
Views: 7,846
Posted By Simon F
Really? 6 analog input monitors?

Really? 6 analog input monitors?
Showing results 1 to 25 of 500
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