Method for identifying inclined numbers on express waybills based on video images

Abstract

The invention discloses a method for identifying an inclined number on an express waybill based on a video image. The method comprises the following steps: a) collecting the video image containing theexpress waybill; b) labeling the segment codes in a manual mode; c) training the labeled express sheet image sample to obtain a digital recognition model of n segments of codes; d) selecting n sections of numbers by using n rectangular frames with the same size, and calculating central point coordinates of the n rectangular frames; e) solving the slope of the inclined numbers on the inclined express waybill; f) calculating the inclination angle of the surface sheet; g) rotating the inclined surface sheet image to correct the inclined surface sheet image. According to the express sheet identification method, no matter how the express is placed on the automatic sorting system, the express sheet segment codes can be accurately identified as long as the express sheets face upwards, automaticsorting of the express sheets is guaranteed, manual sorting is not needed, the sorting efficiency is improved, and the express sheet identification method is remarkable in beneficial effect and suitable for application.

Description

technical field [0001] The present invention relates to a video image-based method for recognizing slanted numbers on express delivery slips, and more specifically, to a method for recognizing express delivery slips based on video images that converts the rotation of the slip image to positive by calculating the slope of the slanted code segment. Method of sloping numbers up. Background technique [0002] With the rapid development of the logistics industry, the role of logistics sorting technology in various express delivery and logistics sorting centers is becoming more and more important. At present, the sequential sorting process of parcels is still mainly in the state of manual distribution, and a large number of staff need to be arranged to identify and sort the goods. Therefore, it is necessary to study a logistics sorting method with high efficiency and accuracy. Our company applied for a patent on July 5, 2018, "A method for identifying three-segment codes on expr...

AI Technical Summary

Problems solved by technology

Our company applied for a patent on July 5, 2018, "A method for identifying three-segment codes on express delivery bills based on video images", application number: 201810732728.1, which proposes a method for identifying three-segment codes on express delivery bills. In the process of sorting the express parcels by the express delivery bill recognition method, it was found that when the express express bills were placed at an angle, the three-segment code could not be effectively recognized, resulting in a decrease in accuracy. Reduced package sorting efficiency and increased labor costs

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