View Full Version : 4:4:4 10bit single CMOS HD project
Eliot Mack December 9th, 2004, 09:37 PM <<<-- Originally posted by Jason Rodriguez : Xpress Pro HD:
read about it here:
http://www.avid.com/company/releases/2004/041208__xpressprohd_prod.html
So first FCP, and now AVID (which also gives Windows people access to DVCProHD)-maybe Premiere Pro next?. I don't think they're using Quicktime, but at least you now have access to native DVCProHD on Windows, so you could theoretically go back-and-forth losslessly by using a tape deck and firewire and not doing any effects till your final edit (so that you can transfer the native bit-stream to tape without any renders and generation loss). -->>>
This is pretty interesting. Current plans are to make the source code for writing the DNxHD format freely available, so this looks like a good format to transfer raw Bayer capture data to. Softimage XSI can already render to the DNxHD format, which is a serious space saver for a multilayered composite.
Obin Olson December 10th, 2004, 06:35 PM sorry guys no news at the moment..I will be back soon
Wayne Morellini December 11th, 2004, 08:44 AM <<<-- Originally posted by Juan M. M. Fiebelkorn : (take note I'm not Steve, nor a camera guru ;) )
Really......how can I say this......coming from you dear Wayne...
really good, pixel shift.I should have thought about it..... -->>>
You can say, the "usual, charming, brilliant idea" from me, if you want to. Don't get the ideas wrong, I just like to find the best and simplest solutions to problems, even if they are a bit radical, as long as they get the job done better. Actually I have been thinking of pixel shift like solutions for years, with all these bayer cameras I just never thought of cross applying it here. Best thing is that the cost of applying should work out to be cents per camera head (as you are just sticking one chip in a slightly different position, everything else on the head stays the same).
Actually, the reason I mention it, is to give any camera manufacture reading this that wants to do 3 chip, like Sumix, a nudge in the right direction ;)
For David, and other editing folks. There are a whole heap of different pixel formats, pixel shifts etc that can be used. Maybe it is a good idea to have a simple pixel definition descriptor in the editor to define new formats that the editor can use to process them.
John
Where did you find out about that 3 chip camera?
Wayne Morellini December 11th, 2004, 11:22 AM Takes time sometimes, it was sitting right under my nose.
I think there is a simple way to get much more than 2:1 lossless, though I don't know of computing power requirements:
It is over at the technical thread:
http://www.dvinfo.net/conf/showthread.php?s=&postid=251986#post251986
Ben Syverson December 11th, 2004, 03:01 PM This is directly from Farhad at Sumix:
We have made significant progress with Altasense camera. It will have powerful FPGA with power PC processor inside. It will also have 32 Mega bytes of image buffer memory. The interface will be Giga-Ethernet. We are aiming for 60 fps with loss-less compression. The good news is that components cost will be low. We hope to provide low introductory price, even lower than what we thought earlier. The negative news is that March is the new date for release.
KA-POW!
Then:
We are also working on 3-sensor camera based on IBIS5-M CMOS imager. IBIS5 has global shutter and we believe Cypress which bought Fillfactory will make significant improvement in IBIS5. Our optic people already have good low cost solution for prism to be used in this camera. This camera will also have Giga-E interface. We hope cost of Giga-E storage devices will decrease as they are used more in datacenters. Please let us know what you think
What I think? I think dat's a spicy meatball.
Farhad added in a subsequent email that their lossless compression is doing about 2:1, except in very noisy images. Apparently they can go up to 35fps even without compression, so 24fps with 2:1 compression should be a breeze in terms of data rate.
He also clarified that the 32 megs of RAM is to "smooth out hiccups and control the frame rate exactly. Also it is used for compression and other future image processing." Future image processing.... Mmmmm....
That's all for now,
Ben Syverson
Jason Rodriguez December 11th, 2004, 05:25 PM Hey Ben,
BTW, is that 60fps at 1920x1080?
Also at what bit-rate?
I suppose you could get 60fps 1920x1080 at 12-bits packed over Gigabit ethernet, but just curious to see if that's what they're in fact doing, or if they' still plan on recording 8-bits per pixel.
Ben Syverson December 11th, 2004, 08:22 PM 60fps at 12bit 1920x1080. No comprimise.
Wayne Morellini December 11th, 2004, 11:29 PM Great
Ben can you email them my compression idea over at the technical thread, with 32MB data chunks they should be able to achieve more than 2:1. It looks like they can software update the programmable controller with it after release.
Ben can you get a pricing on the three chips, and any details on the M version of the IBIS5?
My guess is that they are not being slack and are puting in everything practical. Well I am willing to live with the new release date as they are going to lower price and improve performance.
New IBIS sensor, New IBIS sensor, yeah, I've been asking about this hopefully it will fix up problems. This is also excelent news for Drake, as it should be compatible. That is probably why the present IBIS5 sensor has been hiotting below $200 oem.
They must have dropped the straight firewireb, due to the lack on motherboards.
I wonder if they plan twin gigabit cameras in the future to handle higher speeds?
Ben Syverson December 11th, 2004, 11:41 PM Higher speeds? Why? If you need more than 60fps at 1920x1080 at 12bits, you should wait a few years. :)
I think they dropped firewire B for simplicity -- they have other scientific sources that definitely need Gigabit Ethernet, so I think they went with that first.
Pricing is SUPER low -- they said to quote you around "$3K." I don't know what the M version of the IBIS-5 is like, but I have to be honest -- I'm all about the Altasens. I don't give a lick about the 3-chip IBIS, even though that's likely to be a super-smooth camera. They understand what we want and need, and will only do it if the image quality is good enough.
Wayne, what exactly is your idea for better than 2:1? Remember that this is 2:1 in terms of the Bayer, not the final RGB. If you can get better than 2:1 on a Bayer image, I'd love to hear how....
All the best,
- ben
Wayne Morellini December 12th, 2004, 12:13 AM Well here is the ibis5 page on the M (MONO version, so I don't know if it is an upgrade to the A, but I have sent off for another data sheet).
I have to run out the door (re-edit: so much for that idea), but from a glance at the specs it seems the big difference is high fill factor sensor cell the rest of he specs don't seem overly spectacular).
Here are the relavent links to the tech:
http://www.fillfactory.com/htm/products/htm/ibis5/ibis5.htm
http://www.fillfactory.com/htm/technology/htm/high_fill.htm
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/search-bool.html&r=1&f=G&l=50&co1=AND&d=ptxt&s1=6225670.WKU.&OS=PN/6225670&RS=PN/6225670
This paper, at a glance, seems that the future IBIS's will be good competition for he Altasens (but don't know how much carries to IBIS5).
http://www.fillfactory.com/htm/technology/pdf/Dierickx.pdf
Other insteresting stuff, but no indication it is on the IBIS5:
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/search-bool.html&r=1&f=G&l=50&co1=AND&d=ptxt&s1=6,545,303.WKU.&OS=PN/6,545,303&RS=PN/6,545,303
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/search-bool.html&r=1&f=G&l=50&co1=AND&d=ptxt&s1=6011251.WKU.&OS=PN/6011251&RS=PN/6011251
http://www.fillfactory.com/htm/technology/htm/publications.htm
I knew there was a cheap 3chip prism out there, from my calculations a prism could be able to be made cheap.
Wayne Morellini December 12th, 2004, 12:31 AM IBIS already does 450Hz sensor (under $1000) but I am interested in cheap sensor with a bit extra speed for 120fps speed (for special effect ts buffered to main board memory).
The pricing seems to be great, nearly the same as the original pricing (I think it was $2795), down from those $4K+ pricing.
<<<-- Originally posted by Ben Syverson :Wayne, what exactly is your idea for better than 2:1? Remember that this is 2:1 in terms of the Bayer, not the final RGB. If you can get better than 2:1 on a Bayer image, I'd love to hear how.... -->
I have a link to it in the technical thread above, I have been discussing it with David there. The principle is simple, transmission and tape comrpession format have error correction overheads, and compress over one to x frames, all that limits comrpession ratio. So I suggested (as we had upto 8GB on board (now 32MB on the head) that we could do file like compression accross the lot. I posted a link to the best file compression product with image comrpession mode before. We assume that video lossless codecs are the best, but how many frames do they compress across, one, maybe 6? For us we can go beyond that (if we have the processing power), as I said go to the link above and have look.
Thanks
Wayne.
Wayne Morellini December 12th, 2004, 12:44 AM I suppose, if you could set the Alatsens to 120fps 720p mode you could get it, but you have to use a special decoder for the distorted bayer pattern. For this sort of effect, that ussually looks weird, that is acceptable anyway. But if you are going to show at 1080 60fps (which some people want) you will want 120fps to seamlessly slowmo that on screen "kiss", or head turn etc. I suppose we don't need hat quality anyway, we can digitally take the 60fps and use it at 24fps on 60Hz screen.
Of note: In recent months I remember reading somewhere of some rpocess to get one photon to charge two electrons. That is equivalent to a QE of 200%.
If this new IBIS can cu it as good as a Micron, hen hopefully they use pixel shift ;).
Now does this 3 chip camera use microlense, that would give us trouble when using large aperature optics, or does it just use the new well method?
Régine Weinberg December 13th, 2004, 02:30 AM Microlinses are much more a pain
with wide angle, proof
on a Canon 16 M still cam, wide angle is shit
on a Kodak 14 M there are no lenses,
they are other problems, moire, anti alaising
but hell sharp even with wide angle
only you have to tweak each pic
on a PC with Kodakt software.
Wayne Morellini December 14th, 2004, 12:34 AM By the way, I have found out that IBIS5a sensor in around 100 euro whole sale. So cameras on it could be quiet cheap.
I also was over at the HD for indies site and saw a news listing for a 8 drive Sata RAID array that would do 500Mb/s, so I imagine 4 drives should be able to do 250MB's. So a three chip Alatsens, is 150+ MB's, a three chip Ibis would be 75+ MB's, both with pixel shift. So does that mean you can times the res by 4, which means it beats Bayer 8 and 4 mpixel in data requirements, virtually no light loss? Sorry, just waking up from dream land, ahh 3 chip, pixel shift, mmm, sleep again....
Juan M. M. Fiebelkorn December 14th, 2004, 02:50 AM I don't believe microlenses could become a problem even using a wide angle lens which was prepared for a resolution of around 160 line pairs per millimeter.
We are just using 2 Mpix sensors not 14 Mpix ....
Wayne Morellini December 15th, 2004, 10:14 AM I posted an update to the technical thread by mistake, to do wih fast laptop drives benchmarks, 80GB 1.8inch, and Windows XP PDA.
I would like to ask a question though about pixel shift.
It has occured to me in the distant past, to shift two of the primary colours, rather than just the green value that the DVX100 does. This basically gives 3 times the resoltuion in each direction, but it occurs to me that I haven't heard of it being used like that, and there maybe a good reason for that. So would it work, or is there some problem with doing that?
Thanks.
Wayne.
Juan M. M. Fiebelkorn December 15th, 2004, 10:34 PM I guess shifting just the green is the optimum.That way green pixels are getting the intensity values that fall on the in-between spaces of the R/B sensor pixels, Giving you something like a 100% fillfactor (with a three sensors covering the same area)
I can't see what would be the advantage of shifting two of them if you don't have empty areas to cover .....
Wayne Morellini December 15th, 2004, 11:23 PM But are there any diadvantages to shifting two, like do we loose effectiveness in defining colour, pixels or brightness. I am interested in this because it allows a progressive SD 3 chip to do 1080p.
Another question what is the most sensitive sensors/camera for somehing like this, and what are the best value cheap ones.
I think Pana may have used it in the DVX100 not for future HD, as some suppose but to get rid or artifacting from inter pixel spaces etc.
Juan M. M. Fiebelkorn December 16th, 2004, 12:11 AM I think you won't be getting anybetter resolution, just that.
I say this because, with the green sensor shifting you are covering all the empty spaces available.....going beyond that you will be just superimposing pixels again, Am I clear now?
I don't really know, what I can tell you is the DVX100 is rated at around 640 ASA and I can asure that is true.My experience with it during 2 months confirmed it (you know going shooting through dark streets and being able to see more through the camera than what your naked eyes can see is an amazing thing ,mostly when we are not talking about a night vision device or a night-shot handycam :) )
There isn't a thing like "artifacting from inter pixel spaces " (in fact something related in some way with that is what we call "aliasing").
If it existed monochrome cameras would be full of them....which is not the actual case...
Wayne Morellini December 16th, 2004, 01:16 PM What I meant was, when there is incomplete fill between a pixel, and it shows up in a image (because not enough pixels are used to missaliagn with the format) in things like edges that move from pixel to pixel and blink out temporaily as they do.
Yes, on those camcorder info tests there was a vast differnce between the Sony's and the Pana in low light, but in other tests, when they spent time in manual control, they got the near the same lighting levels. I see the raw tests shows a lot of range, compared to normal, I wonder if the camera actually can go lower in low light.
The Pixel shift gets it's resolution from being able to mathematically sample the difference from the overlapping pixels forming artificial sub pixel quads, so you can mathematically sumise what the diffrence means on each of these quads, to form 4 new pixels, instead of interpixel spacing, giving the extra resolution. That is what I meant, that the reason 3 missaligned pixels are not used, might be some fundamental break down in quality of the samples etc.
Thanks
Bye.
Obin Olson December 16th, 2004, 10:32 PM Well well I crawl out from under a rock just in time to get blinded by the sun:
"We have made significant progress with Altasense camera. It will have powerful FPGA with power PC processor inside. It will also have 32 Mega bytes of image buffer memory. The interface will be Giga-Ethernet. We are aiming for 60 fps with loss-less compression. The good news is that components cost will be low. We hope to provide low introductory price, even lower than what we thought earlier. The negative news is that March is the new date for release."
but that's OK after 1 week of having UPS "delay" my package it's finally in the hands of ouraprogrammer for final work..we will be using the 3300rgb camera for now and upgrade to the ALtasense VERY soon..I wish I had more "info" but all is quiet before the storm right?
keep up the merry mood.
Steve..EPix 64bit word?
Régine Weinberg December 18th, 2004, 08:19 AM Dear Obin
sonds amazing the Alta news really !!!
Dear Wayne: In a three CCD cam you have a R, G, B ccd stupid but, take it this way Pana is shifting green horizontal and vertical
Canon only horizontal, Canon CCD's are smaller Canon want's to boost resolution. Why only pana does it, nobody knows, rumors telling me Pana wanted to do other things maybe. Shifting all three sounds crazy but why not - crazy does not mean can't be done.
Look at this: http://www.natemc.com/tech001b.php
so we kan convert the 1.8" Toshiba dis to a 0,1,5 or 10 arry
and to all sorry but to have a huge LCD screen as Drake does it beside the cam I'm not callin a viewfinder
Ronald
I've been some day's of to
NORWAY SAILING, NO EMAIL
BUT LOT OF FUN
Obin Olson December 18th, 2004, 09:09 AM I will have a 8inch touch screen with playback and live preview..later on I will ad a viewfinder if I can ever find a good microdisplay that works from a VGA input
Régine Weinberg December 18th, 2004, 09:47 AM Hm
which resolution can you have with the 8 inch touch screen ?
Régine Weinberg December 18th, 2004, 10:02 AM a raid with the Toshiba, converted to Sata look there please
http://www.xpcgear.com/hrr1820a.html
can do the bandwith for the altasens, guess thats the way Kinetta will have his 10 disk's. To do all this with FGPA would be a nightmare.
found once a small portable fuelcell doing 320 W, looking for a small mobo with PCIx to have the mobo with the disks in something shaped like a 35mm film magazine could be
anyway the cam has not to have the look as a Video cam if it looks like a russion 16mm or 35mm a prototype is quite easy to build and
going wild, crazy
all you know, but it's only 5 pm here. no red wine only tea and cake, but crazy Bolex had a rotating prism 20/80 % that was the best and Arri did the same to have a viewfinder.
To have a mechanical shutter is not bad with cmos, we get rid of all rolling shutter problems, Vance did it on the Vance cam, it's on his page.
we would have a 90-10 prism and something as a night vision device, to get reely cheep, that would be a B%W viewfinder exact as the lens . We only need a small screen to have some cam parameters and it would be done. a decent high res electronic viewfinder is not a cheapo a prism doing 90/10 can be done , it's not an all digital approch but why should it be ? Id should be a HD indie cam, and I'm used to an Arri like viewfinder all life, thousend's too - to change that will not be wise and B&W would be okay sometimes even much better
As a TFT or LCD like Drake is not camera man like sorry.
Wayne Morellini December 18th, 2004, 11:28 AM <<<-- Originally posted by Ronald Biese : Dear Obin
sonds amazing the Alta news really !!!
Dear Wayne
Shifting all three sounds crazy but why not - crazy does not mean can't be done.
-->>>
Ronald, I wish more people thought like you, then they would explore all credible avenues rather than being desmissive.
Have a look at the technical thread, I have started a new thread, about the uncompressed output of the Sony HDV, and the rerogramming JVC HD1/10 and PD10 to 24fps, Hi-res output discussions:
http://www.dvinfo.net/conf/showthread.php?s=&threadid=36574
Originally posted by Ronald Biese :
> found once a small portable fuelcell doing 320 W
How much?
> looking for a small mobo with PCIx
There are many links to them in the threads.
> to have the mobo with the disks in something shaped like a
> 35mm film magazine could be
Yes, nice styling, my thought, I was almost going to suggest it for the drake system, with a magazine like magazine, and styling/control like film flash film camera, very comfortable.
I think the possiblity we have here is to break away from the old ways and do it better, no guessing/estimating what the film see's, through the veiwfinder, here we can process the film and see it instantly ;) we almost instantly know if there is a porblem with the sensor/image etc. Makes it much easier for low end/new indie person.
Wayne.
Obin Olson December 18th, 2004, 04:36 PM just a little X-mas fun..no I did not shoot it ;)
http://www.wimp.com/pleasure/
Obin Olson December 21st, 2004, 09:04 AM Performance of the Dothan CPU looks good..Looks like we can display color 1080p 24fps and record it to disk..Over the next few days I will be getting updates from my programmer as he is working on the hardware we will be using in the camera...I will keep everyone posted as the news comes in..if I get a chance I will post more clips as we go along...
Jason Rodriguez December 21st, 2004, 11:36 PM Was that preview and recording with or without an external AGP card (I remember you saying that you needed AGP to make things work right)?
Also what board are you currently using?
Obin Olson December 22nd, 2004, 12:38 PM Jason;
we are not using the AGP and things are working fine..still looks like we will NOT get 1080P 24fps 10bit from this system because the pci 32bit buss is not fast enough..I am hoping and waiting for Epix to release the 64bit card..it's now months overdue so I hope anyday we will see one..untill then we are going to keep working on the small details with our software...arggg!! I can't stand it! EPIX WAKE UP!
Jason Rodriguez December 22nd, 2004, 03:27 PM So you're just using the embedded 855GME graphics without an extra AGP card, and that's displaying everything just fine (all 24fps and no dropped frames?)
Obin Olson December 22nd, 2004, 08:13 PM Jason: yes so far so good with the 855gme chipset Jason I will tell you you can't capture 1080p 24fps on a standard pci board..bandwidth issues of the pci buss..I will have a 64bit pci card soon for captures and this should clear all the issues..
Everyone :
As it stands we have no support for editing in 10bit .
How would everyone feel about treating the RAW files like film and going through a DI process like film with color grading taking place in a DI file maybe jpg2000 10bit 1080P and then after the color and gamma work is done dumping down to 1080P 8bit and doing the edits on that..at this point right now we have few options to edit in 10bit. This way we can keep the super quality and dynamic rane of 10bit for the color work and edit in any app with the 8bit video files with or without compression..Vegas will do it Premiere will do it anything that supports the codec of your choice ... does this sound like an ok starting workflow?
I know this is not the best solution but it would work I think and it's easer then working with film IMHO and MUCH cheaper!!
A buddy of mine is buying a Panasonic VariCam Lens Deck ...$105,000...if only I could talk him into 1/2 or even 1/4 that cash for this project!!!!!
Jason Rodriguez December 23rd, 2004, 11:41 AM Obin, what you're talking about isn't such a bad thing. It's the pathway that multi-million dollar Hollywood features are done in.
Trying to have all your HD footage online while you do what is basically an offline edit seems a bit rediculous to me, and that's me talking as a film-editor (which I do). I never, ever keep my original files online, not unless it's DV or something super-compressed like that. And even then, for instance, I'm working on a documentary between other projects that has 45 hours of source material. There is NO WAY I'm going to work with 45 hours of HD material online. Not right now at least. And this doc was shot on DV. I'm doing the edit in a 20:1 Photo-JPEG compression codec, and I'm getting all 45 hours in 50GB! So I have the whole doc on a little hard-drive. It's very nice, and very convenient, and when I need a higher-quality version, I simply re-digitize the source tapes.
Having to do that with your camera footage only makes sense. It's absolutely stupid for you to waste your time color-correcting footage when you're shooting at a 10:1 or greater shooting ratio. Just stupid. You can do it if you want, but you're totally wasting your time. There's a reason that the film industry does things the way they do it. It's cause it works. So basically all you should be doing is editing with a gamma corrected/color balanced "daily" or "one-light" of your footage (which can be very compressed), and then go back and online with the 10-bit files and a very nice color-correction.
Now I don't mean to denegrate anybody on this list, but sometimes I get the feeling that nobody around here has edited a full feature-length movie or worked as an assistant on one. If you had you wouldn't be talking about this panecea of having HD10-bit color-corrected finalized pieces to work with, and you wouldn't be complaining so much about the offline/online process. Again, not to down anybody, but go out and edit a 1 1/2 hour feature, and then throw away 95% of the footage, and see if you'll like taking up gobs of HD space, taking up hours of color-correction, etc. for footage you will NEVER USE.
There's a reason the film industry uses the offline/online process and why software packages like AVID, FCP (a little bit), Discreet, etc. are so popular, and Vegas, Premiere Pro, etc. aren't at this point in time. These software packages are rock-solid at offline/online, and this is the process that has proved to be the most time-efficient and least-costly while maximizing the ability to let your creativity flow.
You don't need an editing package that can handle 10-bit footage. What you do need is an editing package that can export your edit successfully and accurately to another package that has the ability to handle your 10-bit files and online in that package. And you need software that is very adept at media management (this is a biggie).
Anyways, that's just my .02 cents.
Juan M. M. Fiebelkorn December 24th, 2004, 07:20 PM well, I feel the same as you Jason.
I've been working on almost 10 feature length films up to now as an on stage technician (and actor sometimes :) ).
I've done edition, I've been on shooting location as Video Engineer, I've used DaVinci's, Spirits and Ursa Diamonds, I've done color grading, I have experience with Cameras from A-minima up to Arri 535 and 435 ( I have a Mitchell camera myself).I have more than 5 years experience on Video to 35mm transfers, I've done sound capture, correction and edition, I have restored some old footage (digitally), I have developed a film scanner and a film recorder.
So I guess sometimes we (everybody on this forum) aren't talking the same language... :(
But this is the way life is so don't need to worry....
Wayne Morellini December 24th, 2004, 08:17 PM Well, Merry Christmas guys.
Was trying to post this last night, but the thread was playing up. For the day after Christmass:
Was just reading for the last couple of days, but I have to say I agree with you Jason.
What about this:
Producing compressedf/lower resolution quick and nasty version for editing. Used day by day to draft edit, to check, cull and condense to footage needed, and produce a draft edit info file. Eventually this is used to do master versions. We then take the master edit info file and run it like a batch process through X program on the actual Raw footage to auto produce a edited condensed Raw Master version for colour correction etc.
Or should it be simpler?
Obin Olson December 27th, 2004, 10:02 AM Thank you Jason..I am glad to hear what you said.What if you could have SheerVIdeoo 10bit online files at a rate of maybe 20-30MB/sec for 24fps 1080p 10bit?
what if I could dump from RAW to codec like that? or maybe the thing to do is dump to Sheervideo 10bit at FULL RESOLUTION AND at the same time dump to sheervideo HEAVY compression and a frame size of 720x480 for the "offline"..Jason do you think if I had an automatic gamma set at the dump from raw to offline it would be good enough for the edit?
Eliot Mack December 27th, 2004, 12:10 PM <<<-- Originally posted by Jason Rodriguez :
You don't need an editing package that can handle 10-bit footage. What you do need is an editing package that can export your edit successfully and accurately to another package that has the ability to handle your 10-bit files and online in that package. And you need software that is very adept at media management (this is a biggie).
-->>>
Some of the discussion comes from different potential uses. For example, I'm interested in uncompressed 10 bit HD acquisition for keying and compositing work, where most shots will need quite a bit of tweaking. Most compositing and color correcting will be handled in a specialty compositor, but it's nice to do final color correcting in an editor as one can easily apply a change to dozens of clips at once instead of firing up Shake and modifying scripts.
Getting rid of a EDL export/batch redigitize step, and being able to directly export from a desktop NLE to H.264 or WM9 is very convenient for many of us interested in HD authoring. I understand the offline/online workflow, but not everyone has access to a Nitris.
Avid's desktop HD solution is supposed to ship tomorrow, which should be useful. http://www.avid.com/products/xpressprohd/ If the DNxHD codecs work as advertised, they will provide 6:1 compressed 10 bit HD editing & compositing without artifacting. We'll know soon.
Eliot
Jason Rodriguez December 27th, 2004, 12:36 PM Jason do you think if I had an automatic gamma set at the dump from raw to offline it would be good enough for the edit?
Definitely . . . :-) You may want to add a default white-balance too, like either one for 3200K and one for 5600K (sunlight and tungsten). But that's really all you need for offline dailies.
Eliot, I do agree with you on the online files for compositing, but again the problem is that most "editing" packages, even FCP, don't support greater than 8-bit in RGB space, whereas compositing packages can go up to 32-bit floating-point in that all-important RGB colorspace. FCP will go up to 32-bit per channel in YUV, but we're not really dealing with YUV codecs unless you're playing around with SheerVideo like Obin.
Every other package without some plug-in codec modifier is just 8-bit internal rendering for both YUV and RGB, and it's not going to be enough to play around with RAW files to their fullest potential.
Eliot Mack December 27th, 2004, 03:27 PM <<<-- Originally posted by Jason Rodriguez :
Eliot, I do agree with you on the online files for compositing, but again the problem is that most "editing" packages, even FCP, don't support greater than 8-bit in RGB space, whereas compositing packages can go up to 32-bit floating-point in that all-important RGB colorspace. FCP will go up to 32-bit per channel in YUV, but we're not really dealing with YUV codecs unless you're playing around with SheerVideo like Obin.
Every other package without some plug-in codec modifier is just 8-bit internal rendering for both YUV and RGB, and it's not going to be enough to play around with RAW files to their fullest potential. -->>>
The abovementioned Avid Express HD seems to be doing internal calculations at 10 bit precision, at least according to the online specs. I'll reserve final judgement for the shipping product, but that should be sufficient for final color tweaks and most finishing tasks. The heavy lifting should be done in a compositing package anyway.
The other problem with offline work and VFX shots is that many problems (matte chatter and bad edges, small tracking slips, etc.) don't show up until you are looking at the thing in high resolution on a reasonably large screen, at which point they become painfully obvious. I'm trying to figure out a workflow that enables me to identify potential bugs as soon as possible, as frantically re-rendering a bunch of multilayer composites at the last minute is not my idea of fun.
One way or another, we'll get to find out all the answers as the cameras and software become available. I think there is sort of a 'bandwidth pain threshold', for me anyway. If I need a RAID to edit final quality HD, a proxy looks tempting. If, however, I can edit a compressed-but-final-quality HD stream, that fits within the bandwidth of a single drive, I'll do it :)
Eliot
Obin Olson December 27th, 2004, 10:29 PM thanks guys for the thoughts..I will have a FCP box in a day or 2 and I sure as SH*t will have SheerVideo on that box ASAP and see how things work in the SHEER 10bit YUV codec under FCP I will report back then..in the meantime I am awaiting the 64bit capture card for our camera
Régine Weinberg December 29th, 2004, 01:28 PM Dear Obin and all
Have a happy new year
2005
there is anywhere at tkodak, I do mean the page
a page that tells you exat all, all film formats.
I do remember it was on a page scanning film.
Jason Rodriguez December 30th, 2004, 04:54 PM Hi-Res Conforms in After Effects
Hey guys, you might want to check out this tutorial from Automatic duck using FCP and AE (and you should be able to do this with premiere or AVID)
http://www.automaticduck.com/products/pro_import_ae/HiResConformInAE/
Richard Mellor December 30th, 2004, 05:10 PM that looks like great news.
would love to see a premiere pro 1.5 tutorial
Obin Olson December 31st, 2004, 07:55 AM FCP box is in but at the moment I have to edit some scenes from a feature film on it...when the rush is done with that I will do some tests..sorry for the wait I am as anxious as any of you guys to try FCP with SheerVideo ;)
Richard Mellor December 31st, 2004, 12:23 PM It,s hard for me to change platforms when pc,s are becoming so cheap
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=586494&CatId=120
I built a g5 with the same specs ,and It was double the price.
I just can't afford to go the mac route.
*our static adapter is almost perfected and is priced right for the starving artist. with a street price of less than $150
and free 24 hour support on this board.
Aaron Shaw December 31st, 2004, 12:55 PM Good news Richard. Can you provide some detailed info on this adapter?
Richard Mellor December 31st, 2004, 01:09 PM I have sent chris a picture of the completed thorlabs adapter, and I will provide a link when he gets It. I hope obin trys this on his camera ,with cris rubin,s workflow to remove the grain from the groundglass . he thinks it will work even better with a uncompressed image, the parts list is less than $150.
the parts are thorlabs tube and opto sigma glass.
and c-mout to your choice of 35mm lens.
I really don't think this is off topic ,if this works we will be
adding to obin,s camera a$35,000 attachment for less thah $150
Obin Olson January 2nd, 2005, 09:55 AM still waiting for the 64bit capture card from Epix..they are telling me before the end of Jan. I will see a card in my mailbox....can't wait! that card will allow our whole system to shoot 10bit 1080P video @ 24fps
Jason Fox January 2nd, 2005, 09:34 PM So how goes the static adapter development? I've been looking at one posted at http://www.enormousapparatus.com, but I can't get any responses from the filmmaker about his gear.
Fox
Wayne Morellini January 3rd, 2005, 05:48 AM How is the motherboard and processing situation going.
I have to replace my motherboard, and I might as well think about replacing it with something that can be used for the camera, maybe even those sub $500 laptops.
So what is the latest on mainboard, drives, gigabit ethernet, processing power for 720p 1080p?
|
|