Temporal filter radius & threshold... What do they do?

questions about practical use of Neat Video, examples of use
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mnstudio
Posts: 5
Joined: Sat Mar 31, 2012 9:19 am

Temporal filter radius & threshold... What do they do?

Post by mnstudio » Mon Apr 02, 2012 1:52 pm

Very good filter guys... :wink:
But I haven't understood the practical effects of "Temporal filter radius" and "threshold" on NV...

NVTeam
Posts: 2261
Joined: Thu Sep 01, 2005 4:12 pm
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Re: Temporal filter radius & threshold... What do they d

Post by NVTeam » Mon Apr 02, 2012 3:00 pm

mnstudio wrote:"Temporal filter radius"
The Temporal filter radius setting determines the number of consecutive frames used for temporal filtration. Higher values of this setting lead to more aggressive (and slower) temporal filtration. Lower values lead to less aggressive (and faster) filtration based on a small number of consecutive frames. Zero value disables temporal filtration completely. The default value is 1, which means three consecutive frames (the current one, one before and one after the current one) are used for temporal filtration.
mnstudio wrote:"threshold"
The Temporal filter threshold setting determines how sensitive the filter is to changes (for example, motion of objects) in consecutive frames. Higher values of this setting lead to more aggressive filtration with less attention to temporal changes (lower motion sensitivity). Lower values lead to less aggressive filtration with more attention to temporal changes and better preservation of moving details (higher motion sensitivity).

Please try to experiment with your footage using these controls following the above desctiptions. For an example of influence of the temporal filter radius please see the last minutes of this video tutorial.

Thank you,
Vlad
Image Image Neat Video team
noise reduction for video and photos

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