Match moving a more advanced shot…?

[Take24studios]

Hi,

The most shots I have done were just one long move. Like from a car following a straight road. Or walk through a hall way. But I want longer and more interesting shots.

For example: “An interviewer standing in front of a building. The camera is not moving. There will be an impact in the building the camera zooms in to the building, then zooms out and starts running. While he is running away from the building he turns around to film the building once again and then turns around again to keep running.

How can I do this?

Another example: “The camera is walking through a street and then takes a left turn to go in to a side street. The camera keeps walking and sometimes fliming upwards a bit (so the ground is not visible for a while).

How can I do this?

I hope you guys can help me out with this! Smile

Thanks a lot already!
Maarten

[Tobin]

@Take24studios 28013 wrote:

Hi,

The most shots I have done were just one long move. Like from a car following a straight road. Or walk through a hall way. But I want longer and more interesting shots.

For example: “An interviewer standing in front of a building. The camera is not moving. There will be an impact in the building the camera zooms in to the building, then zooms out and starts running. While he is running away from the building he turns around to film the building once again and then turns around again to keep running.

How can I do this?

Another example: “The camera is walking through a street and then takes a left turn to go in to a side street. The camera keeps walking and sometimes fliming upwards a bit (so the ground is not visible for a while).

How can I do this?

I hope you guys can help me out with this! Smile

Thanks a lot already!
Maarten

Hi Maarten,

this sounds like a fairly tricky one.
depending on the software you use, i would try to find the frames where the zooming stops and strats and try to estimate the focal lenght. i would then track the non zooming parts first (telling the software that you have a constant focal length).
after that try to extend your tracked solution into the parts with the variable zoom and give the software an “astimated focal lenth as a starting point to work with.
if you are lucky it might work out, if not…manually matching the camera in the parts that you couldn´t track.

hope this helps…
timor

[tom roger]

Thanks for the reaction 🙂

I am using Syntheyes and it has a “Zoom” checkbox in it. Wouldn’t that make it a lot easier?

“manually matching the camera in the parts that you couldn´t track.”

I don’t know how to do that in Syntheyes… is it possible?

[Tobin]

Hi Maarten,

sure, i would definitely check that box.

we use pftrack where it´s possible to track only parts of a sequence with some setting and then extend the track with another setting (for example with the “zoom” option ticked).

manually matching would be done in a 3d application.
you would import your tracked parts and then manually animated the camera in the non tracked animation.

hope this helps,
timor

[tom roger]

thanks I will give it a try.

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