Digic DV processing... at DVinfo.net

Kevin Dooley · September 14th, 2005, 10:06 AM

So what's the story with this Digic DV processing? How good was it with SD/stills? Anyone have any clue how this will work with 1080i (especially deinterlacing and whatnot...).

I mean from what I've read the CCDs will run at 24Hz and this Digic chip will deinterlace with *NO* resolution loss? Is that possible, or just marketing hype? Is there any ETA on when we'll see footage from this cam? Are there working models at the Canon Expo?

Any of you codec gurus (graeme, etc...) have any thoughts on the feasability of this?

Michael Struthers · September 14th, 2005, 10:20 AM

digic II works magic on their still cameras.

I think 24f is just another way to get a "film look" using Canon's own proprietary technology. Sony or someone else built these chips for them, so interlaced chips might have been the only option....

So you have to hook this cam up to a raid array in the field to get the full data stream?

Steven White · September 14th, 2005, 10:32 AM

Quote:

I mean from what I've read the CCDs will run at 24Hz and this Digic chip will deinterlace with *NO* resolution loss? Is that possible, or just marketing hype?

Well... "progressive scanning" is a very specific term, meaning it reads the chip from the top down (or bottom up). It might be possible to actually sample the whole frame as a single frame on an interlaced chip, and then simply read the chip as two fields. These two fields would have been exposed at the same time but sampled as interlaced. There would be no discernable difference between this approach and a 24p signal.

It's hard to believe though that if they actually did such a thing, they wouldn't just call it 24p. No user would ever be the wiser, and Canon wouldn't have to defend themselves. Without details from Canon, the only test will be to shoot resolution charts and objects with predictable motion and analyse the results.

-Steve

Greg Boston · September 14th, 2005, 10:33 AM

Kevin,

Yes there are working models at the Expo and hopefully some video clips will show up pretty soon.

Also see the link below and click on the CCD and Sensors link to get more in depth info on how the DIGIC DV II processor and the other DSP's handle the 24f and 30f.

http://www.dvinfo.net/canonxlh1/xlh1skinnyx.php

-gb-

Chris Hurd · September 14th, 2005, 10:41 AM

See also www.dvinfo.net/canonxlh1/articles/article06.php -- hope this helps,

September 14th, 2005, 10:06 AM	#1
Kevin Dooley Major Player Join Date: Dec 2003 Location: Fort Worth, TX Posts: 414	Digic DV processing... So what's the story with this Digic DV processing? How good was it with SD/stills? Anyone have any clue how this will work with 1080i (especially deinterlacing and whatnot...). I mean from what I've read the CCDs will run at 24Hz and this Digic chip will deinterlace with NO resolution loss? Is that possible, or just marketing hype? Is there any ETA on when we'll see footage from this cam? Are there working models at the Canon Expo? Any of you codec gurus (graeme, etc...) have any thoughts on the feasability of this? __________________ Kevin Dooley Media Director, Pantego Bible Church

September 14th, 2005, 10:20 AM	#2
Michael Struthers Major Player Join Date: Jul 2003 Location: SF, Ca Posts: 421	digic II works magic on their still cameras. I think 24f is just another way to get a "film look" using Canon's own proprietary technology. Sony or someone else built these chips for them, so interlaced chips might have been the only option.... So you have to hook this cam up to a raid array in the field to get the full data stream? __________________ Michael Struthers www.buzzdigital.com

September 14th, 2005, 10:41 AM	#5
Chris Hurd Obstreperous Rex Join Date: Jan 2001 Location: San Marcos, TX Posts: 27,368 Images: 513	See also www.dvinfo.net/canonxlh1/articles/article06.php -- hope this helps, __________________ CH Search DV Info Net \| 20 years of DVi \| ...Tuesday is Soylent Green Day!

September 14th, 2005, 10:33 AM	#4
Greg Boston Wrangler Join Date: Oct 2003 Location: DFW area, TX Posts: 6,117 Images: 1	Kevin, Yes there are working models at the Expo and hopefully some video clips will show up pretty soon. Also see the link below and click on the CCD and Sensors link to get more in depth info on how the DIGIC DV II processor and the other DSP's handle the 24f and 30f. http://www.dvinfo.net/canonxlh1/xlh1skinnyx.php -gb-