Thanks, I hope it works. I'll let you know.
Victor Wolansky
DS VFX Artist
WEBsite
Demo Reel
815 Slaters Lane
Alexandria. VA.
443-797-3507
-----Original Message-----
From: owner-ds(at)Softimage.COM [mailto:owner-ds(at)Softimage.COM] On Behalf Of
Jef Huey
Sent: Wednesday, August 03, 2005 9:10 AM
To: DS(at)Softimage.COM
Subject: Re: Varicam or HD
That sounds like a good plan.
Jef
Victor Wolansky wrote:
>I think in my case I'm going to shoot using an HDCAM camera, but connecting
>the HD-SDI output directly to a D5 to have the full 4:2:2 bandwidth with
>more resolution than the Varicam.
>
>The other thing is that I'm shooting HD, but the final product is going to
>be SD, The reason because I'm shooting HD is because I will need to
>stabilize and zoom a lot into the frame, so I need to have something bigger
>in resolution than SD in order to not have to deal with the black borders
on
>a heavy stabilized shot.
>
>Also the steadycam will be able to zoom to certain point in to the object,
>and I will have to finish the motion with a digital zoom
>
>
>
>Victor Wolansky
>DS VFX Artist
>WEBsite
>Demo Reel
>815 Slaters Lane
>Alexandria. VA.
>443-797-3507
>
>
>
>-----Original Message-----
>From: owner-ds(at)Softimage.COM [mailto:owner-ds(at)Softimage.COM] On Behalf Of
>Jef Huey
>Sent: Tuesday, August 02, 2005 9:20 AM
>To: DS(at)Softimage.COM
>Subject: Re: Varicam or HD
>
>Victor,
>
>Great example. I remember seeing that awhile ago. While this would seem
>to say that I was not correct in saying sampling is about the quality of
>_individual _pixels, let me ask - based on these images, would you
>rather key a 4:2:2 or 4:1:1 image? 4:2:2 probably because there are more
>unique descriptions of the image COLORWISE in the 4:2:2 image. Since
>keying is all about edges, 4:2:2 has more info for the edges. So that
>said it would seem that the Varicam would be better for color keying.
>
>But then you have to take in the pixel grid size issue. And that would
>have to fall into the what is the final product and what manipulations
>will I do in the intermediate steps question.
>
>Jef
>
>
>
>Victor Wolansky wrote:
>
>
>
>>Jef, look what I found, I think is very good to understand the 4:2:2
>>4:4:4 99:99:99 thing... :-)
>>
>>I don?t know if the email is going to keep the format, if not. This is
>>the link
>>
>>http://www.answers.com/topic/ycbcr-sampling
>>
>>As you can see the 4:2:2 or 4:4:4, is the sampling of a group of
>>pixels and not the sampling of each individual pixel.
>>
>>Victor Wolansky
>>
>>DS VFX Artist
>>
>>WEBsite
>>
>>Demo Reel
>>
>>815 Slaters Lane
>>
>>Alexandria. VA.
>>
>>443-797-3507
>>
>>-----Original Message-----
>>From: owner-ds(at)Softimage.COM [mailto:owner-ds(at)Softimage.COM] On Behalf
>>Of Jef Huey
>>Sent: Monday, August 01, 2005 5:38 PM
>>To: DS(at)Softimage.COM
>>Subject: Re: Varicam or HD
>>
>>Victor,
>>
>>Like I said, ignore pixel count FOR THE TIME BEING.
>>
>>4:2:2 and 3:1:1 is about how much information EACH pixel has. It has
>>
>>nothing to do with how many pixels are on a line.
>>
>>1920 x 1080 is a description of how many pixels wide by how many pixels
>>
>>high an HD image is.
>>
>>Each of those pixels could have been captured as EITHER 4:2:2 or 3:1:1.
>>
>>Do you see what I am talking about here? So no, a 300x300 4:4:4 image
>>
>>is not better than a 1920x1080 4:2:2 image.
>>
>>But the individual pixels of the 300x300 have more color information
>>
>>EACH than the later image. And you would get a better key from the
>>
>>300x300 image.
>>
>>At least that is how I understand it. ;) All this said, testing is
>>
>>and good lighting is the key. PUN!!
>>
>>Jef
>>
>>
>>
>
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