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GoPro video 60 fps and 120 fps post and replies

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GoPro video 60 fps and 120 fps
Qiang Gui
2 Posts

I am using Tracker 5.0.5 to analyze the .mp4 files captures by GoPro silver 4. The videos with 30 fps works fine with Tracker. However, when it came to 60 fps, the output showed the same value for every two consecutive points. Similarly for 120 fps, the output showed the same value for every four consecutive points (please see attached plot and table). Any suggestion or advice on this issue would be appreciated. Thanks.


Qiang

Attached File: Untitled.png


Replies to GoPro video 60 fps and 120 fps

Re: GoPro video 60 fps and 120 fps -
Douglas Brown Avatar
Douglas Brown
339 Posts

Is this link of any use?  https://community.gopro.com/t5/Cameras/60fps-duplicates-frames/td-p/64224  Doug


> I am using Tracker 5.0.5 to analyze the .mp4 files
> captures by GoPro silver 4. The videos with 30 fps
> works fine with Tracker. However, when it came to
> 60 fps, the output showed the same value for every
> two consecutive points. Similarly for 120 fps, the
> output showed the same value for every four consecutive
> points (please see attached plot and table). Any suggestion
> or advice on this issue would be appreciated. Thanks



Re: Re: GoPro video 60 fps and 120 fps -
Qiang Gui
2 Posts

Hi Doug,

Your link didn't work. But it inspired me find the solution. It is the problem with GoPro default setting for auto "low light". With "low light" mode on, the frame rate reduces automatically. So if I want real high 60 or 120 fps, I need to turn "low light" off in GoPro settings. Now it works well for me. Here is the reference link: https://community.gopro.com/t5/Cameras/High-speed-video-frame-doubling-issues/td-p/15968

Appreciate your time for answering and the powerful Tracker.

Qiang



Re: GoPro video 60 fps and 120 fps -
Jon Walter
4 Posts

I have footage shot at 1080P 120fps from camera. My understanding is that the reason to shoot this many frames is to slow the footage down to make it smoother.



1. Is the best way to do this with the speed/duration option?

2. If I decide to not slow the footage down, is there anything in PP that I should do to make the footage play back nicely?



Thanks.

Post edited June 20, 2018 at 3:13 PM EST.

Post edited June 20, 2018 at 3:13 PM EST.

Post edited June 20, 2018 at 3:14 PM EST.

Post edited June 20, 2018 at 3:15 PM EST.

Post edited June 21, 2018 at 2:32 AM EST.

Post edited June 21, 2018 at 2:32 AM EST.



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