4:4:4 10bit single CMOS HD project

Eric Gorski · May 19th, 2005, 09:52 PM

glad to hear the altasense should work.. so is the filter optical or is it a chip??

btw, obin.. any chance of you having a 'do-it-yourself' guide for building your camera similar to the micro-35 deal..?? my hope is to still be able to use alot of your insights to construct something alittle cheaper on my own..

thanks and keep up the good fight.

Konst Seraf · May 20th, 2005, 12:22 AM

Obin, can you suggest, how can anybody get a single 3562?

Obin Olson · May 20th, 2005, 08:35 AM

A do-it-your-self guide for a FPGA hardware camera? I don't think so!
that is like asking for a do it your self panasonic varicam system...LOL

Obin Olson · May 20th, 2005, 08:36 AM

if you want a chip all you need to do is order one from any of the chip makers..not hard at all..the altasense chip with nothing to work with it but a serial port is $1500

Chris Hurd · May 20th, 2005, 09:03 AM

Thread re-opened (and the other Obin thread has been merged into this one).

I had to remove a lot of garbage from a couple of people. In order to avoid problems in the future, please take note. These are not suggestions -- these are RULES:

1. Do not hijack threads. If you want to talk about something else, then start a new thread.

2. No personal attacks. If you have an issue someone, just use the "Ignore This User" feature in your Controls link on the nav bar at the top. You'll never hear from them again.

3. No personal attacks. No flaming.

4. No flaming. No personal attacks. Get it?

5. If you spot an offensive post that you perceive to be a personal attack or a flame against you, DO NOT RESPOND TO IT. Rather, use the "Report This Post" function. I'll come in and remove the offensive material. If you do respond, then you're part of the problem. I'll boot you as well as the other guy. There is NO JUSTIFICATION HERE for escalating a flame war. We don't do flame wars at DV Info Net. That's what makes us different from other message boards.

6. Re-read steps 1 through 5. Thanks,

Obin Olson · May 20th, 2005, 09:09 AM

every camera has an optical IR cut filter for outdoor sunlight. Altasense is the same, we must buy one and mount it on the cmos

Obin Olson · May 20th, 2005, 06:19 PM

can anyone here help me understand this chart?

it's for the ALtasense color separation

dv3productions.com/qe_rgb.pdf

Obin Olson · May 21st, 2005, 08:49 AM

www.dv3productions.com/Altasense3562-8bit.tif

anyone see any reason from this image (other then it's a lin-bayer filter) not to use this chip? I am about to buy one!

does anyone have a good bayer algorithm to apply on it?

Kyle Edwards · May 21st, 2005, 09:20 AM

What was the original resolution of that TIF?

Keith Wakeham · May 21st, 2005, 09:49 AM

1920 x 1080 with bayer filter is the orginal resolution (procam 3562 has active a little more than 1920x1080, but the few extra pixels would likely be cropped).

Kyle Edwards · May 21st, 2005, 12:44 PM

There's alot of jaggy edges on that image. It appears it was a lower res then resized larger with a bad resizer.

Keith Wakeham · May 21st, 2005, 01:15 PM

More likely because of the simple debayer algorithim used. Simple debayer can cause colour fringing and all sorts of artifacts between high contrasting areas.

Obin Olson · May 21st, 2005, 03:03 PM

I did not know that the color artifacts are from the de-Bayer..I was thinking it was a lens issue ;)

Keith did you happen to pickup and bookmark any of the links for high quality bayer algorithms in this thread? I can't seem to find them when I search...

we will need to try one of them when we can..

Keith Wakeham · May 21st, 2005, 05:55 PM

So of the colour fringing between high contrast is easily attributed to bad debay. That looks to be the case for that because the fringing isn't as uniform as it would be as a lens issue, but it is hard to tell.

And unfortunately i never did bookmark any of the debayer.

Valeriu Campan · May 21st, 2005, 11:09 PM

Obin,
Congratulations and good luck with the new incarnation of your project. Way to go...
Have a loook at this CL script (dcraw) for Linux to convert RAW images from digital stills cameras by Dave Coffin, or look at this page to get more info. Could be a starting point.

May 20th, 2005, 09:03 AM	#2855
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,368 Images: 513	Thread re-opened (and the other Obin thread has been merged into this one). I had to remove a lot of garbage from a couple of people. In order to avoid problems in the future, please take note. These are not suggestions -- these are RULES: 1. Do not hijack threads. If you want to talk about something else, then start a new thread. 2. No personal attacks. If you have an issue someone, just use the "Ignore This User" feature in your Controls link on the nav bar at the top. You'll never hear from them again. 3. No personal attacks. No flaming. 4. No flaming. No personal attacks. Get it? 5. If you spot an offensive post that you perceive to be a personal attack or a flame against you, DO NOT RESPOND TO IT. Rather, use the "Report This Post" function. I'll come in and remove the offensive material. If you do respond, then you're part of the problem. I'll boot you as well as the other guy. There is NO JUSTIFICATION HERE for escalating a flame war. We don't do flame wars at DV Info Net. That's what makes us different from other message boards. 6. Re-read steps 1 through 5. Thanks, __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

May 21st, 2005, 11:09 PM	#2865
Valeriu Campan Major Player Join Date: Mar 2004 Location: Melbourne, Australia Posts: 223	Obin, Congratulations and good luck with the new incarnation of your project. Way to go... Have a loook at this CL script (dcraw) for Linux to convert RAW images from digital stills cameras by Dave Coffin, or look at this page to get more info. Could be a starting point. Last edited by Valeriu Campan; May 21st, 2005 at 11:33 PM.

May 19th, 2005, 09:52 PM	#2851
Eric Gorski Regular Crew Join Date: Jun 2004 Location: Western Oregon Posts: 138	glad to hear the altasense should work.. so is the filter optical or is it a chip?? btw, obin.. any chance of you having a 'do-it-yourself' guide for building your camera similar to the micro-35 deal..?? my hope is to still be able to use alot of your insights to construct something alittle cheaper on my own.. thanks and keep up the good fight.

May 20th, 2005, 12:22 AM	#2852
Konst Seraf New Boot Join Date: Apr 2005 Posts: 12	Obin, can you suggest, how can anybody get a single 3562?

May 20th, 2005, 08:35 AM	#2853
Obin Olson Trustee Join Date: Jan 2003 Location: Wilmington NC Posts: 1,414	A do-it-your-self guide for a FPGA hardware camera? I don't think so! that is like asking for a do it your self panasonic varicam system...LOL

May 20th, 2005, 08:36 AM	#2854
Obin Olson Trustee Join Date: Jan 2003 Location: Wilmington NC Posts: 1,414	if you want a chip all you need to do is order one from any of the chip makers..not hard at all..the altasense chip with nothing to work with it but a serial port is $1500

May 20th, 2005, 09:09 AM	#2856
Obin Olson Trustee Join Date: Jan 2003 Location: Wilmington NC Posts: 1,414	every camera has an optical IR cut filter for outdoor sunlight. Altasense is the same, we must buy one and mount it on the cmos

May 20th, 2005, 06:19 PM	#2857
Obin Olson Trustee Join Date: Jan 2003 Location: Wilmington NC Posts: 1,414	can anyone here help me understand this chart? it's for the ALtasense color separation dv3productions.com/qe_rgb.pdf

May 21st, 2005, 08:49 AM	#2858
Obin Olson Trustee Join Date: Jan 2003 Location: Wilmington NC Posts: 1,414	www.dv3productions.com/Altasense3562-8bit.tif anyone see any reason from this image (other then it's a lin-bayer filter) not to use this chip? I am about to buy one! does anyone have a good bayer algorithm to apply on it?

May 21st, 2005, 09:20 AM	#2859
Kyle Edwards Major Player Join Date: Nov 2004 Location: LI, NY Posts: 274	What was the original resolution of that TIF?

May 21st, 2005, 09:49 AM	#2860
Keith Wakeham Major Player Join Date: Jan 2005 Location: St. John's, NL, Canada Posts: 416	1920 x 1080 with bayer filter is the orginal resolution (procam 3562 has active a little more than 1920x1080, but the few extra pixels would likely be cropped).

May 21st, 2005, 12:44 PM	#2861
Kyle Edwards Major Player Join Date: Nov 2004 Location: LI, NY Posts: 274	There's alot of jaggy edges on that image. It appears it was a lower res then resized larger with a bad resizer.

May 21st, 2005, 01:15 PM	#2862
Keith Wakeham Major Player Join Date: Jan 2005 Location: St. John's, NL, Canada Posts: 416	More likely because of the simple debayer algorithim used. Simple debayer can cause colour fringing and all sorts of artifacts between high contrasting areas.

May 21st, 2005, 03:03 PM	#2863
Obin Olson Trustee Join Date: Jan 2003 Location: Wilmington NC Posts: 1,414	I did not know that the color artifacts are from the de-Bayer..I was thinking it was a lens issue ;) Keith did you happen to pickup and bookmark any of the links for high quality bayer algorithms in this thread? I can't seem to find them when I search... we will need to try one of them when we can..

May 21st, 2005, 05:55 PM	#2864
Keith Wakeham Major Player Join Date: Jan 2005 Location: St. John's, NL, Canada Posts: 416	So of the colour fringing between high contrast is easily attributed to bad debay. That looks to be the case for that because the fringing isn't as uniform as it would be as a lens issue, but it is hard to tell. And unfortunately i never did bookmark any of the debayer.