Invoice checking method and device, invoice checking service equipment and storage medium

• Main Authors: XU JIAYONG, CHEN JINFENG, ZHONG JIANCHEN, LI CHUN'AI
• Format: Patent
• Language: Chinese; English
• Published: 07.05.2024
• Subjects: CALCULATING; CHECKING-DEVICES; COMPUTING; COUNTING; HANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLEPAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING,DISPENSING, CHANGING OR DEPOSITING; PHYSICS

The embodiment of the invention provides an invoice checking method and device, invoice checking service equipment and a storage medium. The method comprises the following steps: firstly, identifying the position of each piece of text information in an invoice image; generating a surrounding lattice corresponding to each piece of text information according to the position of each piece of text information; for each surrounding lattice, generating a normal vector corresponding to the surrounding lattice by taking the long edge of the surrounding lattice as a reference; clustering the surrounding lattices according to the normal vectors of the surrounding lattices to generate a plurality of surrounding lattice sets; for each surrounding lattice set, calculating an average normal vector of the surrounding lattice set, and calculating a first included angle between the average normal vector and the vertical direction; when the first included angle is greater than a preset included angle, rotating each surrounding