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Gyroflow: An open source advanced gyro-based video stabilization tool

gyroflow.xyz

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Re: Gyroflow: An open source advanced gyro-based video stabilization tool

#22
Just tried it on some random GoPro footage and was very impressed! First - by the quality of stabilization. It is if not better then at the same level as in Gopro itself (which is considered having best e-stabilisation on the market). And second, that now I can shoot with disabled stabilization and choose amount of crop in post. I know that Sony offers similar thing with Catalyst Browse, but it is very unconvenient to use additional application to render stabilized footage, here I can just use plugin for Davinci and have seamless workflow.

Re: Gyroflow: An open source advanced gyro-based video stabilization tool

#24
post #10

It looks cool, though I still find myself looking for Hyperlapse[0] alternatives. Hyperlapse seemed like magic when announced, particularly, not needing to crop large parts of shaky videos [0] https://blogs.microsoft.com/ai/hyperlapse-siggraph-2014/

I've been really happy with GoPro's TimeWarp feature as a hyperlapse alternative. I've used it on bike rides and car road trips and it's been awesome. It doesn't do the exact same thing as hyperlapse and does crop the frame, but with the GoPro's wide angle lens, the FOV is still really good. I'm even using a Hero7, but the newer models have much better TimeWarp features.

Re: Gyroflow: An open source advanced gyro-based video stabilization tool

#27
post #9

Earlier quoted context omitted.

When I last played with it I was able to get quite good results with an A6400 and a phone as the gyro (the camera does not natively provide the data), except for when the rolling shutter is extreme, at which point it falls apart. The camera's notoriously slow sensor readout seems to be more than Gyroflow can accommodate for when it gets pushed.

Why is gyro data required? Doesn't the video itself contain enough information about the movement in vast majority of cases?

In addition to the other comments, gyro data helps reduce the computation required by a lot.

Re: Gyroflow: An open source advanced gyro-based video stabilization tool

#28

When stabilizing and shooting with a cinematic shutter speed (1/48s) you have the problem with motion blur from the camera shake. This blur looks very odd when stabilized. Does Gyroflow have any functionality or tips toward this?

The odd look of the blurring is actually a look people go for with FPV drones: https://www.youtube.com/watch?v=8JnkyT77AfA&

Re: Gyroflow: An open source advanced gyro-based video stabilization tool

#30

When stabilizing and shooting with a cinematic shutter speed (1/48s) you have the problem with motion blur from the camera shake. This blur looks very odd when stabilized. Does Gyroflow have any functionality or tips toward this?

The odd look of the blurring is actually a look people go for with FPV drones: https://www.youtube.com/watch?v=8JnkyT77AfA&

That Bardwell video is about normal motion blur, which is highly desirable in any cinematic content. You'll see in those YouTube comments (and there are a few mentions in the video, as well) complaints about "stutter blur" and "shaky blur" - the effect you get when you apply HyperSmooth or Gyroflow to physically/exposure-time blurred video. I wouldn't say that smoothed motion blur is desirable in FPV either.

These days, you'll usually see people in FPV either fixing their tuning to require less smoothing (the best solution!), or moving to shorter exposure times and post-production blur instead.

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