In short, this unique ratio simply meant you could scan it from up, down, left or right.

The results? They identified the ideal ratio as 1:1:3:1:1.īy identifying this number, they were able to determine the black and white areas in the position detection pattern which enabled the Code to be detected regardless of the scanning angle.

It needed to be unique, which meant the development team spent the better part of a year doing a survey of the white to black areas’ ratio after reducing them to patterns on printed material. Some of the most challenging problems for Hara and his team were figuring out a way to make 2D codes read as fast as possible, while preventing false recognition once the shape of the position detection pattern was added. Masahiro Hara with a team of two, undertook the task of developing what we now know and recognize as the QR Code. In 1994, DENSO WAVE, a subsidiary manufacturing company, required a better, faster, stronger technology to the Barcode to process higher amounts of characters and to aid them in tracking vehicles and parts.

Shareit barcode