two-dimensional barcode used for storing data in both horizontal and vertical directions

A readable barcode that uses geometric patterns to store information; also known in mainland China as [[二维码|二維碼|er4 wei2 ma3]] or [[二维条形码|二維條形碼|er4 wei2 tiao2 xing2 ma3]].

two-dimensional barcode; matrix code; QR code