Show HN: Photo Realistic QR-Codes • Hacker News Board

Re: Show HN: Photo Realistic QR-Codes

#91

Post by bioipbiop » Sat, Aug 15, 2020, 1:06 AM UTC

ksm1717 wrote: post #65

ravenstine wrote: post #60

Somehow, I think these kinds of "clever" QR codes would be less used. Most people aren't going to even notice that they are legit QR codes. QR codes are already underutilized enough, at least in western countries. Cool idea, though!

It’s my opinion that underutilization is because of application rather than any more ephemeral thing like appearance. QR codes haven’t had a killer app yet, and they tend to be used for marketing rather than any critical tasks that rely on the qualities that make it a useful technology. My guess is this will change as it’s become more or less a requirement to have a cell phone to function in western society.

Look at just any thing you’ve purchased and you’ll find a QR code on it somewhere (or the box it came in). They have massive uptake in warehousing and manufacturing.

They are also very popular in China, the dang things are on just about every surface.

Re: Show HN: Photo Realistic QR-Codes

#92

Post by _underfl0w_ » Sat, Aug 15, 2020, 3:02 AM UTC

alsdkfjkqjwer wrote: post #26

QR should look MORE like QR, and always include an URL next to it. If you display a QR Code with some url, and fail to show a shortened url next to it for people to type instead of scanning, you either fail basic common sense tests, or are intentionally being an asshat.

You must just use so many QR codes. Clearly you're very familiar with their typical usage and most common use cases. /s

Re: Show HN: Photo Realistic QR-Codes

#93

Post by aabbcc1241 » Sat, Aug 15, 2020, 3:14 AM UTC

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…

This is both fun and useful, great job

Re: Show HN: Photo Realistic QR-Codes

#94

Post by drran » Sat, Aug 15, 2020, 3:15 AM UTC

MarioMan wrote: post #90

social_quotient wrote: post #33

Earlier quoted context omitted.

Here is a good demo of a streaming qr solution. Not ours but a good demo of the concept. https://youtu.be/_0djJ1aVEXs We use a similar method for offline wallet transfers of private crypto keys. I’ll note a couple things. Keep the frame simple and not too dense. Be careful on ecc settings. Higher res camera androids to be slower in our testing. Be ready to loop the series to catch missed frames. Gives your frames and…

I've been wondering how one could efficiently and reliably pack arbitrary data into YouTube videos, a hacky way to get free and obfuscated data storage. Streaming QR codes has been the most promising way I can think of, particularly since they offer resilience against YouTube's video re-encoding process and are standardized for far larger codes, which could be easily fit in a video for later parsing out by a tool. Yo…

Put your data into description and comments.

Re: Show HN: Photo Realistic QR-Codes

#95

Post by kalleboo » Sat, Aug 15, 2020, 3:57 AM UTC

rahimnathwani wrote: post #77

ksm1717 wrote: post #65

Earlier quoted context omitted.

It’s my opinion that underutilization is because of application rather than any more ephemeral thing like appearance. QR codes haven’t had a killer app yet, and they tend to be used for marketing rather than any critical tasks that rely on the qualities that make it a useful technology. My guess is this will change as it’s become more or less a requirement to have a cell phone to function in western society.

"QR codes haven’t had a killer app yet" When I lived in China, scanning QR codes was how we initiated payments for restaurants, groceries, couriers and other offline goods/services. It was also how we added people to WeChat. I would guess at least 20 million QR codes are scanned per day in Beijing.

QR code payments are also sweeping Japan, despite contactless smartphone payments having existed since before the iPhone even.

For a shop to adopt QR payments, all they need a printout of a QR code. No hardware, not leasing some card reader, zero maintenance.

Re: Show HN: Photo Realistic QR-Codes

#96

Post by userbinator » Sat, Aug 15, 2020, 4:35 AM UTC

MarioMan wrote: post #90

social_quotient wrote: post #33

Earlier quoted context omitted.

Here is a good demo of a streaming qr solution. Not ours but a good demo of the concept. https://youtu.be/_0djJ1aVEXs We use a similar method for offline wallet transfers of private crypto keys. I’ll note a couple things. Keep the frame simple and not too dense. Be careful on ecc settings. Higher res camera androids to be slower in our testing. Be ready to loop the series to catch missed frames. Gives your frames and…

I've been wondering how one could efficiently and reliably pack arbitrary data into YouTube videos, a hacky way to get free and obfuscated data storage. Streaming QR codes has been the most promising way I can think of, particularly since they offer resilience against YouTube's video re-encoding process and are standardized for far larger codes, which could be easily fit in a video for later parsing out by a tool. Yo…

https://github.com/dzhang314/YouTubeDrive

Re: Show HN: Photo Realistic QR-Codes

#97

Post by yjftsjthsd-h » Sat, Aug 15, 2020, 5:10 AM UTC

KMnO4 wrote: post #43

AriaMinaei wrote: post #21

Earlier quoted context omitted.

Data is actually transferred locally through Bluetooth, but the initial handshake appears to happen through the point cloud.

Bluetooth? I would assume direct wifi, ie Airdrop. Use Bluetooth to initiate it but handle the data transfer over high bandwidth wifi

Why initiate over BT? Wouldn't you bootstrap from QR to WiFi?

Re: Show HN: Photo Realistic QR-Codes

#98

Post by mleonhard » Sat, Aug 15, 2020, 6:18 AM UTC

divan wrote: post #70

social_quotient wrote: post #33

Earlier quoted context omitted.

Here is a good demo of a streaming qr solution. Not ours but a good demo of the concept. https://youtu.be/_0djJ1aVEXs We use a similar method for offline wallet transfers of private crypto keys. I’ll note a couple things. Keep the frame simple and not too dense. Be careful on ecc settings. Higher res camera androids to be slower in our testing. Be ready to loop the series to catch missed frames. Gives your frames and…

Another animated QR data transfer that uses fountain codes: https://github.com/divan/txqr

Did you consider using the front camera for bidirectional phone-to-phone communication? That could allow frame re-transmits which would increase the data rate a lot.

Re: Show HN: Photo Realistic QR-Codes

#99

Post by tinus_hn » Sat, Aug 15, 2020, 8:02 AM UTC

jiofih wrote: post #89

dTal wrote: post #73

Earlier quoted context omitted.

Do you at least get a manual confirmation? Because if not, I've a QR code I'd like to show you...

You enter your PIN, or touch/Face ID. Also 1) only works up to a daily limit which you can configure 2) it’s a SEPA transfer, goes straight to another local, very traceable account and not a random bitcoin wallet in case you try to pull that off :)

> it’s a SEPA transfer, goes straight to another local, very traceable account and not a random bitcoin wallet in case you try to pull that off

Money mules make this less secure than you think. You can just rent some bums bank account.

Re: Show HN: Photo Realistic QR-Codes

#100

Post by tinus_hn » Sat, Aug 15, 2020, 8:07 AM UTC

rsync wrote: post #56

zelly wrote: post #42

Related idea: https://www.aestheticodes.com/ https://www.youtube.com/watch?v=kW39Mt5kscQ But this is probably better because it uses natively supported QR codes.

I have a pet project, "Oh By"[1] that is a replacement for QR codes that does not require an app to create, or consume, and you can just chalk them up anywhere. The downside is that it is a centralized service. Further, you would need to trust that this centralized service would continue operating into the indeterminate future. Luckily I have a strong track record there. A very simple example use-case is here: https:…

I don’t see how you can look these up.