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Greenscreen Keying bei Bewegung im Bild

Green Screen Keying in motion in the Picture



Frage von slugger:
Mai 2008

Hello!

The question is vllt. confused by something, but I try it out:

In the back if I have several OFS Making of shooting chart, I see that certain body parts, etc. of actors in a bright green to be wrapped later herausgekeyed be. The best example of this is the machine gun leg in Planet Terror.
What keying themselves have I hold the simple basic knowledge which should mean I've even have a green background is replaced by a picture. What now my problem is: The shooting of these scenes are rarely rotated so that the camera does not move, usually wobbles even. If I have someone with a green leg movies leg so that I can later rauskeyen, then yes, I need sort of background in which the person is a 2nd Time because the green so only through a black replacement. How to do it if the picture is moving and the camera is shaking slightly synonymous?

I hope I could somewhat understand the issue and would provide assistance for very very very grateful.



Antwort von Tuffy:

Hi,

You can get there more or less easy with Motion Tracking help.
You take it as material, where the leg was not s.der body, and puts it behind - then do you track the movement of the background of the movement in the video-dependent, and shaking everything in harmony.

For smaller objects the effects, such as the Hollywood of course I do not know. And I can promise you that this is not easy and you do not like the results achieved will ;-)

Feasible in my imagination as in After Effects.

Gruß,
Lucas



Antwort von WoWu:

This is synonymous only very slightly with keying s.Rand to do. Behind a "virtual studio" technology, which of course is synonymous to ensure that the background according to the camera movements with changes in perspective. Also need to change the focal length VS Calculator naturally concerned.
"Plattes keying" you can see only in the static settings.





Antwort von B.DeKid:

Hi
Eg In House Of Wax (the newer) as you see in the Making of the Effect .... good the makeup of the "evil" has been divided medium green color - Then using 3D software to complete modeliert head - then you've got a Gesichtshaelfte taken away and they replaced the 3D model - (a technique I myself for a Batman vs.. Two Face would like Movie)

As mentioned above, are pieces of the background picture then something like Photoshop with the STAMP it does, or cloned s.Ort and gemapped body. This is called "tracking" is used.

Whether you yourself achieved, or even could, I can not judge, but if you know how to do it then the synonymous every ordinary citizens do.

In the area reserved to the "Tracking and Motion Capturing is doing something but the last 5 years and the programs and scripts are becoming more complex ...... what then tracked with hand retuschirt and was already making some a little script.

MfG
B. DeKid



Antwort von slugger:

Thanks for the answers!
I see already, it is far more complicated than I thought.
Are there any tutorials how to get somewhere with sowas Vegas could make?




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