Fog

Fog

Hi Michael,
You should read this thread:
http://forum.imagineersystems.com/showthread.php?t=493
Hopefully you will find the answers there.
Also check the video ‘mocha - “unlink” tracking techniques to solve panning camera’ at Boris FX | Documentation
J-P

Hi Michael,

You should read this thread:

http://forum.imagineersystems.com/showthread.php?t=493

Hopefully you will find the answers there.

Also check the video ‘mocha - “unlink” tracking techniques to solve panning camera’ at Boris FX | Documentation

J-P

In the full version you need to reduce the amount of frames in the stabilisation module. If you set the frame number to a high value it will try to lock down more motion. Try setting it to 3 or 4 to see if that helps, and make sure you turn off maximum smoothing.

In the full version you need to reduce the amount of frames in the stabilisation module. If you set the frame number to a high value it will try to lock down more motion. Try setting it to 3 or 4 to see if that helps, and make sure you turn off maximum smoothing.

I have a difficult piece of panning timelapse footage. It is further complicated by the subject matter which is a river of fog. I believe I managed to get a set of tracking data from Mocha. However when I plug that data into AE, either I arrest the panning, or if I use position and anchor points with tolerance, I get chaotic movement. Is there a technique for using mocha to stabilize panning footage?
Thanks for your help!
Michael

I have a difficult piece of panning timelapse footage. It is further complicated by the subject matter which is a river of fog. I believe I managed to get a set of tracking data from Mocha. However when I plug that data into AE, either I arrest the panning, or if I use position and anchor points with tolerance, I get chaotic movement. Is there a technique for using mocha to stabilize panning footage?

Thanks for your help!

Michael

I followed the instructions you referred me to, the stabilization is pretty impressive, but it’s arresting the panning of the camera. The tracked item stays stable while the image area marches off screen.
I also tried the full version of Mocha and the stabilization module didn’t help at all.
Here is the footage I’m trying to save:
http://www.winokurphotography.com/mocha/TIM_monarch2.mov
Here is the movie with the following steps applied:
http://www.winokurphotography.com/mocha/TIM_monarch2-mocha.mov
Thanks again for your help!
—Quote—
Here are the steps to use the tracking data (transform data) for stabilisation with rotation and scale:

  1. Export as After Effects Transform Data
  2. Paste onto the required layer in After Effects
  3. Delete the position key frames
  4. Select the rotation channel and click Animation | Add Expression. In the expression box type the formula:
    Code:
    rotation*-1
  5. Select the scale channel and click Animation | Add Expression. In the expression box, type in the formula:
    Code:
    x = 10000/scale[0];
    y = 10000/scale[1];
    [ x, y ];
    Hope this helps,
    —End Quote—

I followed the instructions you referred me to, the stabilization is pretty impressive, but it’s arresting the panning of the camera. The tracked item stays stable while the image area marches off screen.

I also tried the full version of Mocha and the stabilization module didn’t help at all.

Here is the footage I’m trying to save:
http://www.winokurphotography.com/mocha/TIM_monarch2.mov

Here is the movie with the following steps applied:
http://www.winokurphotography.com/mocha/TIM_monarch2-mocha.mov

Thanks again for your help!

—Quote—
Here are the steps to use the tracking data (transform data) for stabilisation with rotation and scale:

  1. Export as After Effects Transform Data
  2. Paste onto the required layer in After Effects
  3. Delete the position key frames
  4. Select the rotation channel and click Animation | Add Expression. In the expression box type the formula:
    Code:

rotation*-1

  1. Select the scale channel and click Animation | Add Expression. In the expression box, type in the formula:
    Code:

x = 10000/scale[0];
y = 10000/scale[1];
[ x, y ];

Hope this helps,
—End Quote—

J-P and Martin,
Thanks again for your help with this problem. I tried again - several times - using the full version of Mocha as you suggested with stabilization set to level 3. I also tried levels 5, 7 and 10 and I tried turning shear (x&y) and scale and rotation on and off.
You’ll see in the newest version of the clip (link follows) that the abrupt wind effects are still not being removed. I went back and very carefully re-tracked the power towers. I believe the track is very accurate as I did it one-frame at a time, however the tracking is not translating to a good stabilization. Do you have any other suggestions?
Thank you,
Michael
http://www.winokurphotography.com/mocha/TIM_monarch2_v3.mov

J-P and Martin,

Thanks again for your help with this problem. I tried again - several times - using the full version of Mocha as you suggested with stabilization set to level 3. I also tried levels 5, 7 and 10 and I tried turning shear (x&y) and scale and rotation on and off.

You’ll see in the newest version of the clip (link follows) that the abrupt wind effects are still not being removed. I went back and very carefully re-tracked the power towers. I believe the track is very accurate as I did it one-frame at a time, however the tracking is not translating to a good stabilization. Do you have any other suggestions?

Thank you,

Michael

http://www.winokurphotography.com/mocha/TIM_monarch2_v3.mov