Does this video look choppy to you?

[Philip Gonzales]

I saw someone elses post about choppy video and it made me start looking at mine a little closer. Seems a bit choppy to me, but not sure. What do you think? Do you think my video looks normal?

Directly from Blue Iris


From Camera SD Card


Here are my settings. Am I forcing my shutter speed to fast? I don't want any motion blur. I set similar settings on night profile as well.

 

[mat200]

Hi

Yes it appears choppy when I view. Wonder if it is possible to find a tool to tell us how many fps it actually recorded.

 

[alastairstevenson]

I saw someone elses post about choppy video and it made me start looking at mine a little closer. Seems a bit choppy to me, but not sure. What do you think? Do you think my video looks normal?

Here is a strawman to throw out:

The video is recorded at 15fps, let's say the car is travelling at 20mph, that's about 9m/s
In which case the car will have travelled 9 meters divided by 15 between each frame, which is about 0.6m
So when you watch the video, does the car look like it's jumping in 0.6m steps, about 2 feet for our Imperial cousins?
Without having the original video and not being able to check frame-by-frame it's a little hard to be sure - but I'd suggest yes.

Thoughts?

 

[alastairstevenson]

Wonder if it is possible to find a tool to tell us how many fps it actually recorded.

The video is recorded at 15fps

According to YouTube

 

[Philip Gonzales]

Any suggestions to make it not choppy?

 

[Philip Gonzales]

Here is a strawman to throw out:

The video is recorded at 15fps, let's say the car is travelling at 20mph, that's about 9m/s
In which case the car will have travelled 9 meters divided by 15 between each frame, which is about 0.6m
So when you watch the video, does the car look like it's jumping in 0.6m steps, about 2 feet for our Imperial cousins?
Without having the original video and not being able to check frame-by-frame it's a little hard to be sure - but I'd suggest yes.

Thoughts?

Oh so you are saying this looks normal for my fps?

 

[mat200]

Oh so you are saying this looks normal for my fps?

Hi Philip,

think so, try more fps and see if you like that more.

 

[alastairstevenson]

Oh so you are saying this looks normal for my fps?

Yes, I believe so. Do the sums.
And you can easily experiment yourself.
But do remember the purpose of the recording - it's not about the aesthetics of how smooth it looks, it's about having good detail in the individual frames.

 

[Xeddog]

I keep my frame rates low because it's surveillance video, not cinema. The lower frame rates also let me retain more days of video on my recorder.

 

[mlapaglia]

Try bumping your FPS up to max and drive by and see what happens.

 

[Philip Gonzales]

Ok so sounds like this is normal. I'll test bumping up the fps but like others have said just to mess around. I just wanted to make sure this wasn't abnormal.

 

[bigredfish]

As others above have said, looks like 15fps or less to me. Bump to 30fps and I'll bet it goes away.