Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Show HN: Photo Realistic QR-Codes

qrpicture.com

Post reply on HN
Print view View original

11–20 of 110 posts

Re: Show HN: Photo Realistic QR-Codes

#11

Post by Hates_ »

AriaMinaei wrote: post #5

Slightly OT, but when migrating data between iPhones, the old iPhone displays an animated point cloud that appears to function like a QR code. You scan it with the new phone, and your data starts to migrate locally through Bluetooth. Other than aesthetics, what are the advantages of the point cloud? Higher bandwidth? Also, if you were to transfer 100s of megabytes of data from device A to B, using A's display and B's…

I could be completely off the mark, but would an animation make it difficult to spoof. I can't now just use a photo of the cloud? Of course it could be that it just looks cool :D

Re: Show HN: Photo Realistic QR-Codes

#12

Post by pickledcods »

AriaMinaei wrote: post #5

Slightly OT, but when migrating data between iPhones, the old iPhone displays an animated point cloud that appears to function like a QR code. You scan it with the new phone, and your data starts to migrate locally through Bluetooth. Other than aesthetics, what are the advantages of the point cloud? Higher bandwidth? Also, if you were to transfer 100s of megabytes of data from device A to B, using A's display and B's…

Not quite sure I understand what the question is. Calculating the QR is really CPU intensive and the settings on the site are for lowest quality. ANd even now its overloading.

Re: Show HN: Photo Realistic QR-Codes

#14

Post by Jakob »

pickledcods wrote: post #2

Hi HN! Inspired by a recent HN article on QR codes [0], I decided to finally publish [1] and open-source [2] a service I created 7 years ago. I got pulled away from it by projects with higher priority and it has been catching dust and been bitrot eroding since. Now reconstructed the basics and hosted on an AWS instance I would like to share so it might inspire. Creating a photo realistic QR requires two steps. The fi…

Great idea! Works flawlessly for me on an iPhone XR.

Re: Show HN: Photo Realistic QR-Codes

#16

Post by Jakob »

pickledcods wrote: post #12
AriaMinaei wrote: post #5

Slightly OT, but when migrating data between iPhones, the old iPhone displays an animated point cloud that appears to function like a QR code. You scan it with the new phone, and your data starts to migrate locally through Bluetooth. Other than aesthetics, what are the advantages of the point cloud? Higher bandwidth? Also, if you were to transfer 100s of megabytes of data from device A to B, using A's display and B's…

Not quite sure I understand what the question is. Calculating the QR is really CPU intensive and the settings on the site are for lowest quality. ANd even now its overloading.

OP asks about Apple’s animated "QR cloud" which was used in some iPhones and with the Apple watch:

https://apple.stackexchange.com/questions/301563/what-is-the...

https://www.quora.com/Has-somebody-tried-to-dynamically-gene...

Re: Show HN: Photo Realistic QR-Codes

#17

Post by city41 »

pickledcods wrote: post #10
dexen wrote: post #9

Funny how QR codes scanning pictures of people has more content, and is more engaging, than the "Pictures of People Scanning QR-codes" [1]. In all seriousness, impressive work - and very pragmatic delivery, queue system and all. ---- [1] https://picturesofpeoplescanningqrcodes.tumblr.com/

The queuing was based on 2007 metrics on load and usage. It now seems this needs updating. Preferably making if full client-side javascript.

Going full client side would also mean you could host it for free and it could handle a ton of traffic.

Re: Show HN: Photo Realistic QR-Codes

#18

Post by dhritzkiv »

AriaMinaei wrote: post #5

Slightly OT, but when migrating data between iPhones, the old iPhone displays an animated point cloud that appears to function like a QR code. You scan it with the new phone, and your data starts to migrate locally through Bluetooth. Other than aesthetics, what are the advantages of the point cloud? Higher bandwidth? Also, if you were to transfer 100s of megabytes of data from device A to B, using A's display and B's…

If I had to guess, the animated point cloud isn't tasked with transferring lots of (megabytes) data, but is probably a proprietary version of a QR code, both for aesthetics and security through obscurity. Its format may also have higher information density than a QR code, which would work well for encrypted data.

I imagine the heavy lifting is done on Apple's server. The data being transferred locally is likely a GUID/IMEI/etc + a nonce.

Re: Show HN: Photo Realistic QR-Codes

#20

Post by rootusrootus »

This is really cool!

I do wonder what the practical use is, though, aside from just being pretty cool. In a real world situation I think the recognizability of a QR code as something you can scan with your phone is an important part of the value.

Post reply on HN