POSITIONING METHOD FOR MICRO QR TWO-DIMENSIONAL CODE

• Main Authors: LU, Shenglin, CHEN, Yuquan
• Format: Patent
• Language: Chinese; English; French
• Published: 13.01.2022
• Subjects: CALCULATING; COMPUTING; COUNTING; HANDLING RECORD CARRIERS; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS

A positioning method for a micro QR two-dimensional code, comprising: step 1, performing edge detection on a micro QR two-dimensional code image, acquiring a connected domain, and then extracting all the contours according to the connected domain; step 2, selecting a rectangular connected domain from the contours obtained in the step 1, and determining the centers of rectangular positioning blocks; step 3, calculating accurate coordinates of the centers of the positioning blocks according to the proportional relation of two-dimensional code positioning blocks; and step 4, using a central point of the positioning block as the starting point, respectively acquiring boundary points in the horizontal direction and boundary points in the vertical direction of a code area along the horizontal and vertical directions of a clock area, determining the code area boundary of a micro QR two-dimensional code according to the two boundary points and the central point of the positioning block. The method effectively solves