Show HN: We put an iPhone on the front wheel of a car • Hacker News Board

Re: Show HN: We put an iPhone on the front wheel of a car

#21

Post by ProAm » Tue, Jun 17, 2014, 3:30 PM UTC

Goosey wrote: post #18

I found this to be really incredible. That is some amazing video stabilization technology. If this app was available for android I think I would use it for every video capture I ever do.

I'd love to see them film something while doing this. Maybe a dog or person running next to the car in frame or something. Definitely cool stuff.

Re: Show HN: We put an iPhone on the front wheel of a car

#22

Post by petrakeas » Tue, Jun 17, 2014, 3:32 PM UTC

Goosey wrote: post #18

I found this to be really incredible. That is some amazing video stabilization technology. If this app was available for android I think I would use it for every video capture I ever do.

This is one of the developers of the app. The Android version will be available in the following month. We are planning on running the experiment on Android devices too!

Re: Show HN: We put an iPhone on the front wheel of a car

#23

Post by kp25 » Tue, Jun 17, 2014, 3:33 PM UTC

matt_morgan wrote: post #15

binarymax wrote: post #2

I have some serious sea legs and almost never get motion sickness. The fullscreen youtube vid got me. Great experiment.

I'm getting motion sickness just thinking about it. Haven't even watched yet.

Do watch it, Great Experiment. Got Sick..

Re: Show HN: We put an iPhone on the front wheel of a car

#24

Post by Kayou » Tue, Jun 17, 2014, 3:35 PM UTC

Goosey wrote: post #18

I found this to be really incredible. That is some amazing video stabilization technology. If this app was available for android I think I would use it for every video capture I ever do.

Did you see that it is only stabilizing rotation? If it looks so stable that's because the lens of the iPhone is at the exact center of the wheel. If you were to move your phone along a X or Y axis, I don't think those movements would be stabilized like you could get with a software stabilizer. I guess the main target of this app is people turning their device when shooting a video.

Re: Show HN: We put an iPhone on the front wheel of a car

#25

Post by btbuildem » Tue, Jun 17, 2014, 3:46 PM UTC

Kudos to you guys for trying to solve the VVS problem! For your second experiment, may I recommend attaching the iphone to the disc of a variable-speed angle grinder? You'll get a much larger range of speeds, as well as the ability to aim the camera freely. You'll be able to test how your accelerometer algos handle pitch and yaw IN ADDITION to centrifugal force!

Re: Show HN: We put an iPhone on the front wheel of a car

#26

Post by [deleted] » Tue, Jun 17, 2014, 3:48 PM UTC

[deleted]

Re: Show HN: We put an iPhone on the front wheel of a car

#27

Post by smallegan » Tue, Jun 17, 2014, 3:54 PM UTC

Bought the app, seems very laggy on my iPhone 5s. Is this to be expected? I wonder if it is doing the processing as the phone is recording or if it is capturing the accelerometer data and modifying the video after that fact?

Re: Show HN: We put an iPhone on the front wheel of a car

#28

Post by uberspot » Tue, Jun 17, 2014, 3:55 PM UTC

smallegan wrote: post #27

Bought the app, seems very laggy on my iPhone 5s. Is this to be expected? I wonder if it is doing the processing as the phone is recording or if it is capturing the accelerometer data and modifying the video after that fact?

It's doing all the processing on the fly while it's recording.

Re: Show HN: We put an iPhone on the front wheel of a car

#29

Post by fruithunter » Tue, Jun 17, 2014, 4:03 PM UTC

Great post. Awesome app. Just purchased it :)

Re: Show HN: We put an iPhone on the front wheel of a car

#30

Post by samstave » Tue, Jun 17, 2014, 4:13 PM UTC

Goosey wrote: post #18

I found this to be really incredible. That is some amazing video stabilization technology. If this app was available for android I think I would use it for every video capture I ever do.

I think they are using the middle-out algo for this.