Remove screen tearing from video?

[kashinoda]

Hi guys,

I'm putting together a video for a friend but captured footage from his device has left a lot of screen tearing / vertical sync on the footage. Is there any way to edit the footage and fix the problem? For example, shifting the frames across so they're properly in line?


Thanks for any help

[sanlyn]

"Edit"? Probably not. What does "put together" mean? From what? Using what hardware/software? What does the tearing look like (I think you might mean "flagging")? Many would like to help, but we need more information. You should also provide a sample or cap of the problem so that we know we're all talking about the same thing.

[kashinoda]

Thanks for your reply!

By putting together I just mean I'm making a compilation / montage of his gameplay on Xbox 360. He's using the Elgato HD capture device which comes with it's own software, I haven't managed to find alternative software but maybe I haven't looked in the right places. I think the tearing is probably a combination of his poor laptop and the software that comes with it. Though that's a problem I'll have more of a look at later.


Right now I want to see if I can salvage the small amount of clips that have quite bad tearing in places.


I've uploaded some screenshots of the problem here:
http://img546.imageshack.us/img546/255/2c7f.jpg
http://img854.imageshack.us/img854/8153/44nh.jpg


You can download the clip from http://fbe.am/nvt or http://tiny.cc/0gsk3w

[DB83]

Screenshots and sample clips (subject to size and this one is certainly small enough) should ALWAYS be uploaded direct to the forum as attachments.

Is this footage a direct capture or a conversion ?

[johns0]

Screen tearing is usually caused by framerates going over the monitors refresh rate,best to set vsync on in the game and capture it again,filtering will not take out the tearing.

[kashinoda]

Screen tearing is usually caused by framerates going over the monitors refresh rate,best to set vsync on in the game and capture it again,filtering will not take out the tearing.

He can't set Vsync on as it's a console not PC game, it doesn't actually appear when he plays it's only after capture due to hardware limitations of his laptop I suspect.

Screenshots and sample clips (subject to size and this one is certainly small enough) should ALWAYS be uploaded direct to the forum as attachments.

Is this footage a direct capture or a conversion ?

Sorry bud, long time lurker but first time posting here!


The MP4 was a converted file, I've attached the original capture.

[johns0]

Best to set the output resolution to 720p,from what i read tearing is a vsync issue on the xbox360 but theres no vsync options which people are asking for.

[kashinoda]

Best to set the output resolution to 720p,from what i read tearing is a vsync issue on the xbox360 but theres no vsync options which people are asking for.

Cheers I'll have a play with his settings later.


Is there anything that can be done about existing footage? These are spontaneous clips so they can't be recaptured. I appreciate there might not be a way to fix it but surely something to make it look a bit better?

[jagabo]

Is there anything that can be done about existing footage?

Not really. Some individual frames you can shift the top or bottom to match but in some frames moving objects are torn. You would have to grab parts of different frames to fill in the background, etc. Way more trouble that it's worth.

For example, in the second image you posted, if you move the top of the frame left so that the clouds and large antenna line up, the small antenna on the tank will be misaligned. And you would have to find some sky in another frame to fill the top right where the shifted portion has left an "empty" spot. No software is smart enough to do all of that.

[kashinoda]

Is there anything that can be done about existing footage?

Not really. Some individual frames you can shift the top or bottom to match but in some frames moving objects are torn. You would have to grab parts of different frames to fill in the background, etc. Way more trouble that it's worth.

For example, in the second image you posted, if you move the top of the frame left so that the clouds and large antenna line up, the small antenna on the tank will be misaligned. And you would have to find some sky in another frame to fill the top right where the shifted portion has left an "empty" spot. No software is smart enough to do all of that.

Yeah it's a bit of a pain! I've just started messing around in Photoshop... Adobe's Content Aware system is brilliant for editing these frames but there might just be too many in the end. It's a shame they don't have Content Aware technology in their video editing suites, maybe asking for too much!