4:4:4 10bit single CMOS HD project

Juan M. M. Fiebelkorn · August 3rd, 2004, 06:20 PM

one Raptor SATA has a 72 MB/s speed and costs 199...............

Ben Syverson · August 3rd, 2004, 06:26 PM

Yeah, but you can't carry it with you. I'm talking about laptop solutions...

Juan M. M. Fiebelkorn · August 3rd, 2004, 07:20 PM

Why I cannot carry with me a normal PC Hard drive, are you kidding???

Ben Syverson · August 3rd, 2004, 07:22 PM

How are you going to power it? Plug it into a tree? Carry some custom battery?

Juan M. M. Fiebelkorn · August 3rd, 2004, 07:33 PM

If I can carry a Laptop with its batteries, I can power one little disk which just needs around 10 watts and weights 1.60 Pounds I guess, but as usual I know you'll tell me I'm wrong....

http://www.westerndigital.com/en/pro...asp?DriveID=65

Ben Syverson · August 3rd, 2004, 07:38 PM

No, no, no. Relax -- I'm seriously asking. How would you power it? Most laptops probably won't deliver 10watts through any of the buses (maybe over 2 USB2/FW buses combined?) so would you adapt a batter for it?

Juan M. M. Fiebelkorn · August 3rd, 2004, 07:44 PM

If I can't take power from the HDs conectors I guess I can take it from somewhere else, if not I can take it from the Laptops battery connectors and add a little regulator, transformer (don't know the exact english name) to power the disk..
If all this fails, I guess I'll need another laptop battery or a camera battery with a power regulator to get 12 and 5 volts from it....
Anyway it would always be smaller and less power hungry than a Firewire RAID or several disks...

Ben Syverson · August 3rd, 2004, 07:52 PM

A FW raid with 2 disks would only take 6W maximum during read/write operation, and it could all be bus-powered... No extra power source needed...

Juan M. M. Fiebelkorn · August 3rd, 2004, 08:04 PM

two laptop disks??
Are you sure?

Ben Syverson · August 3rd, 2004, 08:10 PM

What do you mean? Yeah -- laptop drives draw a max of 5W on spin-up (5.5 for 7200rpm), but only draw a max of 3W during normal operation. With two separate buses, you should have no trouble powering them (a single bus may not power both, depending on the laptop).

And 2 FW800 drives is enough to give you 67MB/sec, like I cited before...

Obin Olson · August 3rd, 2004, 08:54 PM

can the laptop drives be used on a SATA connector? that would be a very good setup and somthing I will look at for the camera

Steve will I get a 3300 soon?

once again we used the camera for a "real" shoot today of a product on a bluescreen for comping and once again the "streaking" ruined the shot...the good side is that the streak was on the blue so it was cut out anyway...

Jason Rodriguez · August 3rd, 2004, 09:22 PM

Obin, is your software finally working?

Juan M. M. Fiebelkorn · August 3rd, 2004, 09:26 PM

Obin, when you get your new 3300 please could you give me an aproximate sensitivity in ASA scale ?

Ben Syverson · August 4th, 2004, 04:01 AM

I haven't been paying attention to the DAC offsets in my camera's settings, and I think that's why we were seeing excessive banding in previous images. I'm still experimenting with how far I can push the image once the DAC offsets are set correctly, but here's an example image with no hardware image correction, but with a software gamma applied, and my chromaPop plug-in.

I think I'm getting the hang of it. There's still a little banding in certain areas, but it's way less intense. I might be able to push the hardware gamma up a tad without affecting the banding. Software gamma adjustments from 8 bit data will definitely accentuate any banding...

- ben

Rob Scott · August 4th, 2004, 07:07 AM

Quote:

Ben Syverson wrote:
But I'd rather not work directly on Rob's app, as I think he's focusing on a PC-based solution, whereas everything I do is on the Mac. Also, I think Rob's sw is basically capture software specifically for CameraLink (Rob, correct me if I'm wrong), which doesn't apply to my camera.It may make sense to share certain techniques and code snippets, but if I decide to go forward with a Quicktime codec, a lot of that code will be fairly specific.

I am working on two things:

Capture app -- CameraLink- and Windows-specific (for now)
Convert app -- cross-platform conversion/filtering app

The Capture app will probably be closed-source, but the Convert app will be developed under the GPL, so it would be a good place for your Bayer algorithm to go, if you're interested in incorporating it.

When I have some time, I'll try to work up a better road map of the software under development.

(I have also thought about working on a codec, but I have way too much on my plate already.)

August 4th, 2004, 04:01 AM	#1319
Ben Syverson Major Player Join Date: Mar 2004 Location: chicago Posts: 434	d'oh I haven't been paying attention to the DAC offsets in my camera's settings, and I think that's why we were seeing excessive banding in previous images. I'm still experimenting with how far I can push the image once the DAC offsets are set correctly, but here's an example image with no hardware image correction, but with a software gamma applied, and my chromaPop plug-in. I think I'm getting the hang of it. There's still a little banding in certain areas, but it's way less intense. I might be able to push the hardware gamma up a tad without affecting the banding. Software gamma adjustments from 8 bit data will definitely accentuate any banding... - ben

August 3rd, 2004, 06:20 PM	#1306
Juan M. M. Fiebelkorn Major Player Join Date: Jun 2004 Location: Buenos Aires , Argentina Posts: 444	one Raptor SATA has a 72 MB/s speed and costs 199...............

August 3rd, 2004, 06:26 PM	#1307
Ben Syverson Major Player Join Date: Mar 2004 Location: chicago Posts: 434	Yeah, but you can't carry it with you. I'm talking about laptop solutions...

August 3rd, 2004, 07:20 PM	#1308
Juan M. M. Fiebelkorn Major Player Join Date: Jun 2004 Location: Buenos Aires , Argentina Posts: 444	Why I cannot carry with me a normal PC Hard drive, are you kidding???

August 3rd, 2004, 07:22 PM	#1309
Ben Syverson Major Player Join Date: Mar 2004 Location: chicago Posts: 434	How are you going to power it? Plug it into a tree? Carry some custom battery?

August 3rd, 2004, 07:33 PM	#1310
Juan M. M. Fiebelkorn Major Player Join Date: Jun 2004 Location: Buenos Aires , Argentina Posts: 444	If I can carry a Laptop with its batteries, I can power one little disk which just needs around 10 watts and weights 1.60 Pounds I guess, but as usual I know you'll tell me I'm wrong.... http://www.westerndigital.com/en/pro...asp?DriveID=65

August 3rd, 2004, 07:38 PM	#1311
Ben Syverson Major Player Join Date: Mar 2004 Location: chicago Posts: 434	No, no, no. Relax -- I'm seriously asking. How would you power it? Most laptops probably won't deliver 10watts through any of the buses (maybe over 2 USB2/FW buses combined?) so would you adapt a batter for it?

August 3rd, 2004, 07:44 PM	#1312
Juan M. M. Fiebelkorn Major Player Join Date: Jun 2004 Location: Buenos Aires , Argentina Posts: 444	If I can't take power from the HDs conectors I guess I can take it from somewhere else, if not I can take it from the Laptops battery connectors and add a little regulator, transformer (don't know the exact english name) to power the disk.. If all this fails, I guess I'll need another laptop battery or a camera battery with a power regulator to get 12 and 5 volts from it.... Anyway it would always be smaller and less power hungry than a Firewire RAID or several disks...

August 3rd, 2004, 07:52 PM	#1313
Ben Syverson Major Player Join Date: Mar 2004 Location: chicago Posts: 434	A FW raid with 2 disks would only take 6W maximum during read/write operation, and it could all be bus-powered... No extra power source needed...

August 3rd, 2004, 08:04 PM	#1314
Juan M. M. Fiebelkorn Major Player Join Date: Jun 2004 Location: Buenos Aires , Argentina Posts: 444	two laptop disks?? Are you sure?

August 3rd, 2004, 08:10 PM	#1315
Ben Syverson Major Player Join Date: Mar 2004 Location: chicago Posts: 434	What do you mean? Yeah -- laptop drives draw a max of 5W on spin-up (5.5 for 7200rpm), but only draw a max of 3W during normal operation. With two separate buses, you should have no trouble powering them (a single bus may not power both, depending on the laptop). And 2 FW800 drives is enough to give you 67MB/sec, like I cited before...

August 3rd, 2004, 08:54 PM	#1316
Obin Olson Trustee Join Date: Jan 2003 Location: Wilmington NC Posts: 1,414	can the laptop drives be used on a SATA connector? that would be a very good setup and somthing I will look at for the camera Steve will I get a 3300 soon? once again we used the camera for a "real" shoot today of a product on a bluescreen for comping and once again the "streaking" ruined the shot...the good side is that the streak was on the blue so it was cut out anyway...

August 3rd, 2004, 09:22 PM	#1317
Jason Rodriguez Trustee Join Date: Mar 2003 Location: Virginia Beach, VA Posts: 1,095	Obin, is your software finally working?

August 3rd, 2004, 09:26 PM	#1318
Juan M. M. Fiebelkorn Major Player Join Date: Jun 2004 Location: Buenos Aires , Argentina Posts: 444	Obin, when you get your new 3300 please could you give me an aproximate sensitivity in ASA scale ?