Off the chart...

[IAN SUN]

Jim, is this development advanced enough that now more likely to see HDR mode enabled upon release?

 

[Danny Murray]

Its would be nice if you guys can show some pictures !! For people like me that THINK IN IMAGES and not words and numbers!!

 

[Pascal Scheffers]

I'm very much enjoying the speculation. (But not nearly as much as I'm enjoying the images and movies).

Graeme

So... is anyone close, or do we need to go in another direction :madscientist:

Speculation is so much fun while waiting to see some moving images.

 

[Carmel Bruno]

Geordie, or nearly enough, like, y'na.

Graeme

I didn't know you are from the North East of England. Newcastle, perhaps?

 

[Esmaeil Neisi]

Congratulations! guys

 

[Roberto Lequeux]

Love the speculation.

Jim

If Jim teased you to the point you suddenly jumped off your third floor window breaking every geek bone in your body, you would still have to fight the urge to thank him.
He is the most interesting man alive.

 

[Jannard]

I'll give you some clues on HDRx©...

1. What we are doing has never been done before.

2. We have different (variable) HDRx© modes.

3. The test Michael Cioni saw was 18 stops.

4. We have a lot of work to do to characterize and implement variable HDRx© in EPIC.

5. We need a new chart.

More details when we have the faintest idea of what we are doing...

Jim

 

[Brook Willard]

I'll give you some clues on HDRx©...

1. What we are doing has never been done before.

2. We have different (variable) HDRx© modes.

3. The test Michael Cioni saw was 18 stops.

4. We have a lot of work to do to characterize and implement variable HDRx© in EPIC.

5. We need a new chart.

More details when we have the faintest idea of what we are doing...

Jim

Hell yeah!

 

[Graeme Nattress]

I didn't know you are from the North East of England. Newcastle, perhaps?

Went to University and taught in Newcastle. I come from down the road in Durham.

Graeme

 

[alex lemon]

aarrrgh, this is killing me. while i love you guys and all that you do, sometimes i just wish you'd let the images do the talking. expectations are now totally off the charts; if it isnt mind-shatteringly good people are going to be disappointed. (i'm sure it will be very, very good but the hype...)

edit: ok, if it is a usable 18 stops you guys deserve all the hype and more!

 

[Pascal Scheffers]

If Jim teased you to the point you suddenly jumped off your third floor window breaking every geek bone in your body, you would still have to fight the urge to thank him.
He is the most interesting man alive.

The thing is, there have been some 'meh' tease threads for me lately. And then they do this. And they've got me ⌘-R'ing this page like :mad2:

I'll go take a :bath: now and come back to :drool: some more later.

 

[Pawel Achtel]

I'm very much enjoying the speculation. (But not nearly as much as I'm enjoying the images and movies).

Graeme

OK, let me try:

Solutuion 1 - No temporal artefacts:

Because EPIC can do 120fps, we can do temporal 5x sub-subsumpling. That's just over 2 stops increase with no motion artefacts. Simply, divide the exposure time by 5 smaller exposures, average for highlights, sum for blacks.
Subsumpling more is bandwidth limited. Noise would go down with additive effect of sub-samples, some pixel massaging may result in, say 3 extra stops. 13 + 3 = 16 stops that's certainly HDR territory.

Solution 2 - With temporal artefacts:

Same as 1, but samples have different exposure time of each sub-sample.
The motion artefacts may be minimised by interleaving short and long exposures within a single integrated frame. Motion blur may be fragmented.

Clearly 16+ stops limited only by the highest shutter speed.

Am I close? :banghead:

 

[IAN SUN]

I'll give you some clues on HDRx©...

1. What we are doing has never been done before.

2. We have different (variable) HDRx© modes.

3. The test Michael Cioni saw was 18 stops.

4. We have a lot of work to do to characterize and implement variable HDRx© in EPIC.

5. We need a new chart.

More details when we have the faintest idea of what we are doing...

Jim

I'll take that as confirmation that the test indicates a capability beyond 18 stops :laugh:

The fact that it is variable I'll take to mean that there is a (are) tradeoffs.

 

[Jannard]

OK, let me try:

Solutuion 1 - No temporal artefacts:

Because EPIC can do 120fps, we can do temporal 5x sub-subsumpling. That's just over 2 stops increase with no motion artefacts. Simply, divide the exposure time by 5 smaller exposures, average for highlights, sum for blacks.
Subsumpling more is bandwidth limited. Noise would go down with additive effect of sub-samples, some pixel massaging may result in, say 3 extra stops. 13 + 3 = 16 stops that's certainly HDR territory.

Solution 2 - With temporal artefacts:

Same as 1, but samples have different exposure time of each sub-sample.
The motion artefacts may be minimised by interleaving short and long exposures within a single integrated frame. Motion blur may be fragmented.

Clearly 16+ stops limited only by the highest shutter speed.

Am I close? :banghead:

Nope.

Jim

 

[Ido Karilla]

Amazing...

Shell we skip the 16 bit era and move on to 20 bit with RED's help?

Thank you RED team.

 

[Carmel Bruno]

Went to University and taught in Newcastle. I come from down the road in Durham.

Graeme

Know those places well. I lived just outside Yarm for a few years. Worked for a while at ICI. Loved going to Durham on bike motorbike.

 

[Subhadip Sen]

I'll take that as confirmation that the test indicates a capability beyond 18 stops :laugh:

The fact that it is variable I'll take to mean that there is a (are) tradeoffs.

Pretty much my conclusions. Can't wait to find out more about HDRx!

 

[Erich Ocean]

16-bit "half" storage a la OpenEXR should be fine for storing bayer data, and it can handle 32 stops with adequate precision within each stop.

 

[Victor Papalucas]

Please tell us is it going to work just fine in motion ?

 

[Pawel Achtel]

Nope.

Jim

OK, I give up, then. I've no idea what you've got, but I sure know want it. :smiley: