The Math behind QR code, what happens inside there?

What exactly happens inside QR Code?!

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[tongsllc]

I didn’t understand anything you said. I only understood the matrix is 21 x 21.

[amirs]

Please no background music... thank you for the Video!

[brentcoates]

For example for example for example for example for example for example this is horrible

[RepairCompany-ol]

At least I know now that QR Stands for quick response

[jjsara]

what on earth was the point of the first 2:20? I though it was going to be an interesting fact that the positioning block was a ratio of the overall dimesions. Nope!

[ronytesler]

You forgot the message length indicator (10 bits for version 1) above the encoding indicator.

[LeslieSolorzanov]

This is a very nice illustration but it's not the math 😅 but still super cool. Thanks

[donwald]

It's like you're reading notes in point form except you've erased all the headings. What a ramble. I feel sorry for your students.

[fabriciobleach]

Muito interessante, professor! Obrigado.

[techgalaxy]

Wonderful!! Thanks. How would a whole URL be saved in that small amount of data squares ? Any video on that ? Thanks

[Crazytesseract]

Format information, has a BCH code for error correction. The data bytes block have Reed Solomon codes for error correction. And that is the main math in the QR codes. There is other too.

[darrel]

@ 7:37 I believe your final read is incorrect based on the keep/invert rules. (Row 1, Block 5) should be white instead of black.

[EricsWormPlayground]

Wow, this was awful, like listening to a high guy explain QR codes, never getting to any point.

[simatwokirwa]

Very educative ...easy to understand especially if you know basic maths including binary digits ... thanks a lot.

[IONYVDFC]

I think I was mislead by the title of the video 😵‍💫A lot of info about QR graphics representation but nothing about the math.

[jardelfarias]

Professor tem este video em português?

[hildareveron]

I understand one thing about QR CODES now😂 you have to understand its a square within a ⬛ square😂😂😂😂😂😂😂

[RWL]

Sorry I didn't learn any math on how QR codes works. I'm assuming over a billion people could be assigned a code and they would all be different.... looking for that kind of math

[BRY]

Great video, really loved the explanation although you didnt explain all of them like the masks it was still good

[matthewoxley]

I HAVE NEVER ENCOUNTER ANYTHING THAT I COULDNT UNDERSTAND EVEN JUST A VERY LITTLE OF ANYTHING!!! I UNDERSTOOD 21X21. THAT IS IT. I AM EITHER MUCH NOT SMARTER (😊) THAN I FEEL THAT I AM OR THIS VHDEO IS NOT MADE TO EXPLAIN ANYTHING BUT SIMPLY JUST TO RAMBLE AND CONFUSE. THERE IS A VIDEO ABOUT DELTA P THAT IS SUPER FUNNY AND INFORMATIVE. MUCH WATCH