Remove motion blur from interview footage?

Former user wrote on 11/16/2023, 5:19 PM

I recorded some interview footage and for reasons not clear, there is some blur with the interviewee. The focus on him is sharp enough, but he has some quick movements as he speaks. When showing edits, some mentioned that the speed is not correct. The audio would immediately reveal if the speed is incorrect. I do see the blur when the person moves though. Can something be done?

Here is the codec info: https://pastebin.com/SFeLs7TZ

Here is the footage: https://streamable.com/k9ox2x

Comments

john_dennis wrote on 11/16/2023, 6:35 PM

@Former user

Do you remember or have a means of determining the ISO and shutter speed you used to shoot the subject video? We can see that the frame rate was 23.976 fps.

Could you share the actual video for download?

Former user wrote on 11/16/2023, 6:50 PM

 

@john_dennis Here you go! https://www.filemail.com/d/mjsqmwlsklnpoxu

I do not recall the other settings. The camera has a touch screen so I must have knocked a setting off-course when handling it. : - (

Former user wrote on 11/16/2023, 6:54 PM

You should have said look at these timecodes, that's what i'm talking about. but because you didn't I just threw it into topaz with deblur turned on. you can tell us if it made a difference and if it's better or worse

Former user wrote on 11/16/2023, 7:07 PM

@Former user That looks much better. He's not like an action hero kicking behinds through a window. So what is this "topaz" thing?

Former user wrote on 11/16/2023, 7:35 PM

It's called Topaz Video AI

The software is more like alpha release, less than a beta release, it's very low quality software unfortunately

Try the trial version and maybe others have a better or free option that does similar

Former user wrote on 11/16/2023, 7:38 PM

@Former user Thanks, what other tools do you suppose can do similar? Anything in the BorisFX realm? When you mentioned 'topaz', I thought it was BorisFX-related...

Former user wrote on 11/16/2023, 9:33 PM

I had a look at your video, it's main problem seems to be that it's been shot at 12fps, or at least the version you uploaded. You could try re-encoding to 12fps, using optical flow to get back to 24fps, Vegas alone may be fine for that for that

(24 unique frame version)

Former user wrote on 11/17/2023, 12:09 AM

@Former user Okay Todd, can you explain, break this down for me? Import into Vegas and have the settings at 12 fps and then export to 24...?

john_dennis wrote on 11/17/2023, 1:42 AM

@Former user @Former user How the fundamental frame rate got to be 12 FPS is a mystery for most cameras, even the ones with a touch screen. I wonder if the shutter speed was significantly different than the 1/48 - 1/50 that we might expect? Perhaps, this is not in-camera video?

I took a slightly different approach to this issue.

In a 12 FPS project, I set the Resample Mode to Frame Blend and rendered to a "lossless" ProRes intermediate at 23.976 FPS.

I took the intermediate file into another Vegas Project, applied a Video Stabilization fX and rendered to this AVC video.

3POINT wrote on 11/17/2023, 5:33 AM

Why adding StabiFX to a rock-solid tripod recording?

3POINT wrote on 11/17/2023, 7:08 AM

I had a look at your video, it's main problem seems to be that it's been shot at 12fps, or at least the version you uploaded. You could try re-encoding to 12fps, using optical flow to get back to 24fps, Vegas alone may be fine for that for that

(24 unique frame version)

Indeed, also my opinion. Despite the uploaded file is recognized as a 24fps recording in Vegas, every second frame is a copy of the frame before, so actual it's a 12 fps recording.

Set project framerate to 12 fps (actual 11,988 fps) and render this with a 1080p12fps rendertemplate. Reimport this render into Vegas and set project framerate back to 24fps and set resampling to "optical flow". Render this timeline to 1080p24 and you will get somewhat what looks like an 24fps recording instead of a 12fps recording. Luckily there aren't much fast movements in the video.

john_dennis wrote on 11/17/2023, 10:35 AM

@3POINT said: "Why adding StabiFX to a rock-solid tripod recording?"

The theory was to smooth the small horizontal camera movements starting at around 43:15. Looking at the results from Frame Blend and Optical Flow versions, Stabilize is not necessary.

Former user wrote on 11/17/2023, 5:51 PM

@john_dennis Your point about this not being in camera video made me wonder. I have a hard drive that stores the video as captured by the camera. The original footage was captured at 1080p, 23.976 fps. However, since this was recorded in 2017, I also made a lot of errors at the time, recording at different frame rates, resolutions and even codecs. This is why a lot of NLE's had nervous breakdowns when it encountered my work. I went back and conformed the resolutions, codecs, framerates and such and this footage might have been caught in a mass conversion command. So here is the footage as close to what my camera got as possible: https://www.filemail.com/d/akaodihbdlrlfpt

I think it looks a little better, but could use some deblurring...

john_dennis wrote on 11/18/2023, 8:22 PM

A casual look at the last file you posted showed it to be 12 FPS, too.

mark-y wrote on 11/18/2023, 8:44 PM

@john_dennis' remarks being taken at face value, optical flow resampling to 23.976p is probably your only redemption in Vegas.

Former user wrote on 11/18/2023, 9:52 PM

@john_dennis Thank you so much for looking into this and helping me find a cost effective solution to deal with this. Topaz is a bit out of budget for now. With my inexperience, there are a lot of resources spent on just fixing my ignorance. The fixes you made do help. I botched the camera settings when recording this scene, that is the only scenario I can think of. My framerate must have been way off. I have not touched the footage in any other way. Your help makes a difference as this documentary is on a special building that matters to a lot of people.

john_dennis wrote on 11/18/2023, 10:15 PM

"Architects have egos and, you know, you can trip on them very easily."

No truer words were ever spoken.

 

john_dennis wrote on 11/18/2023, 10:40 PM

I've seen stranger things...

Former user wrote on 11/18/2023, 10:44 PM

Heh, I am debating whether to leave that line in. It's funny and takes the venerated architect down a peg.