A method and system for detecting whether a check box is checked in a paper prescription document

Abstract

The invention discloses a method for detecting whether a check box is selected in a paper prescription document, which belongs to the technical field of image processing and mainly includes the following steps: (1) collecting an image of the prescription document to obtain a front color image; 2) Extract the front color image of the prescription receipt and convert it into a grayscale image of the receipt; (3) Calculate the tilt angle of the grayscale image of the receipt and perform tilt correction; (4) Perform layout recognition on the grayscale image of the receipt; Binarize the grayscale image of the document to obtain the binary image of the document; (6) establish a positioning template, and determine the initial position of each check box according to the relative position of each document feature area and each check box area configured in the positioning template Positioning range; (7) Precise positioning of each check box; (8) Determine whether each check box is ticked, so as to provide a document image with high detection efficiency, high recognition rate and stable reliability. The purpose of the automatic detection method.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular, relates to a method and system for detecting whether a check box is checked in a paper prescription document. Background technique [0002] Paper prescription documents refer to medical documents issued by registered licensed physicians and licensed assistant physicians for patients during diagnosis and treatment activities, reviewed, dispensed, and checked by pharmacy professional technicians who have obtained professional pharmacy professional qualifications, and used as a patient's medication certificate. instruments. A prescription is a written document for a doctor to administer a drug to a patient, and it is the basis for pharmacists to dispense drugs, and has legal, technical and economic responsibilities. [0003] Some element units of paper prescription documents are in the form of check boxes. Units or individuals need to check the matching items, and the sy...

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Problems solved by technology

[0009] It also discloses a method for verifying the authenticity of an ultraviolet anti-counterfeit check. Although a positioning method for the upper left corner of a rectangular frame is proposed, a specific positioning method for the check box is not proposed.

[0010] Also mentioned in the invention patent CN103488965A is the waybill information entry and color block coding and decoding system, the waybill information entry and the black and white block coding and decoding system all mention the positioning method of the color block. The processing method when the vertex positioning fails, and it is not possible to detect the check box selection

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