I'm looking for help with camera matching and motion tracking.

The examples in the help file don't seem to help me much.

They tell you what numbers to type in but don't explain why or where

the numbers came from.

Help... anyone??

Paul.

I'm looking for help with camera matching and motion tracking.

The examples in the help file don't seem to help me much.

They tell you what numbers to type in but don't explain why or where

the numbers came from.

Help... anyone??

Paul.

> I'm looking for help with camera matching and motion tracking.

> The examples in the help file don't seem to help me much.

> They tell you what numbers to type in but don't explain why or where

> the numbers came from.

The numbers are X, Y and Z positions of the markers in the video clip. So > The examples in the help file don't seem to help me much.

> They tell you what numbers to type in but don't explain why or where

> the numbers came from.

> Help... anyone??

> Paul.

you need to use markers in your scene and get accurate position information

from that. Then you position helper objects in the positions of the markers

in your scene.

- Steve

XYZ relative to what??Quote:>The numbers are X, Y and Z positions of the markers in the video clip. So

>you need to use markers in your scene and get accurate position information

>from that. Then you position helper objects in the positions of the markers

>in your scene.

>- Steve

I think this is what I am not understanding.

Can you step me through this??

Thanks,

Paul.

Ok, on their example they take one point and use that as 0,0,0 in xyzQuote:> XYZ relative to what??

> I think this is what I am not understanding.

> Can you step me through this??

> Thanks,

> Paul.

so....

treat one point in your scene as 0,0,0 and measure the other reference

points relative to that point.

Taking a desk as an example (since it is usually right angled)

If you have the near left corner of your desk as 0,0,0 then the xyz for your

near right corner would be

the distance between the two points,0,0

since the

y and z will be the same (roughly)

the far left corner would be

0, distance from near left, 0

since the x and z

would be the same.

You also need points that are in a different z axis, say the top of the

monitor for example.

Your best bet is to start with easy to measure geometric shapes since it's

easier to get accurate measurements on a smaller scale.

Try sticking boxes on a table and measure away....

Hope this clears it up,

- Steve

1. camera match, camera tracking

What are these functions for? The must be powerful stuff - they look very

complicated. Where can I find sort of manuals for them?

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