Is Video Image Stabilization Just A Slight Image Zoom?

Iggypop

Newbie Location: Chicago Joined: Oct 17, 2015 06:55 Messages: 3 Offline

Solved by

Oct 01, 2018 21:59

I had some footage I was trying to stablize. When applying the fix I noticed that in fact it appears to just change the depth of the footage. So I lost more around the edges that was a critical part of the shot as I increased the amount of stabilization applied.

In ohter words when you zoom in slightly to the disatnce it is expected that footage would appear more stable. Is that in fact only what the tool does? I know sabilization is a hard problem even in the slightest bit but my cannon camera live sabilization appears to use a more sophisticated approach. Am I missing something or using the tool incorrectly? Is this something that is a work in progress?

This message was edited 1 time. Last update was at Oct 01. 2018 22:00

JL_JL

Senior Contributor Location: Arizona, USA Joined: Oct 01, 2006 20:01 Messages: 6091 Offline

Oct 01, 2018 22:15

One method and I think what PD does is stabilize video by analyzing the camera motion in the video and then moving the picture the opposite way to steady it. In this process, you get a zoom in on the picture to maintain framesize without black fringes on the edges. The amount of unstable motion in the clip that the frame needs to move determines how much zooming is necessary.

I believe this is the effect you notice, but no, the zooming is not the stabilization, it's more of a necessary outcome of the approach.

Jeff

Iggypop

Newbie Location: Chicago Joined: Oct 17, 2015 06:55 Messages: 3 Offline

Oct 02, 2018 08:22

Quote One method and I think what PD does is stabilize video by analyzing the camera motion in the video and then moving the picture the opposite way to steady it. In this process, you get a zoom in on the picture to maintain framesize without black fringes on the edges. The amount of unstable motion in the clip that the frame needs to move determines how much zooming is necessary.

I believe this is the effect you notice, but no, the zooming is not the stabilization, it's more of a necessary outcome of the approach.

Jeff

Thanks Jeff.

I now have a better understanding of the problem.

Peter Podder

Member Location: Long Island, N.Y. Joined: Dec 03, 2016 16:13 Messages: 116 Offline

Oct 04, 2018 19:31

Quote One method and I think what PD does is stabilize video by analyzing the camera motion in the video and then moving the picture the opposite way to steady it. In this process, you get a zoom in on the picture to maintain framesize without black fringes on the edges. The amount of unstable motion in the clip that the frame needs to move determines how much zooming is necessary.

I believe this is the effect you notice, but no, the zooming is not the stabilization, it's more of a necessary outcome of the approach.

Jeff

Great explanation. I wondered as well as to why the zoom. Thanks. ____________________________________

Dell Precision M4700 i7-3840QM 2.80 GHz
16gb ram , NVIDIA Quadro K2000M GPU
Samsung 850 EVO 1tb SSD , 500 gb HDD ,
____________________________________