Method and device for scanning multiple ID cards

Abstract

The invention discloses a method and device for scanning multiple identity cards. The method comprises the following steps of: scanning the both surfaces of the multiple identity cards in a scanning area; performing edge extraction on scan images; performing the procedures of positioning, cutting and correcting by rotation on the scan images subjected to the edge extraction, thus obtaining a scan image of each identity card; performing characteristic extraction on each scan image of the identity card to obtain a characteristic pattern of the scan image of each identity card; comparing the characteristic pattern of the scan image of each identity card with a characteristic database storing standard characteristic patterns of the identity cards to perform orientation judgment and orientation correction on the scan image of each identity card, thus obtaining a corrected scan image of each identity card; and splicing a front image and a back image of each corrected scan image of each identity card, and then outputting a spliced image. The method and the device ensure that customers can conveniently perform double-face scanning operation on the multiple identity cards, are high in scanning speed and efficiency, provide good user experience, and can be widely applied to the field of scanning.

Description

technical field [0001] The invention relates to a scanning method and device, in particular to a scanning method and device for multiple ID cards. Background technique [0002] The scanner mainly picks up images based on the principle of photoelectric induction, and is used to convert the content of paper documents into electronic documents by scanning, so that users can disseminate, organize or save them. Ordinary scanners are only capable of scanning images of one side of a document. For ID cards, bills, business cards and other materials, they need to be scanned on both sides and saved or used. In general, after scanning the image on one side of the document, manually turn the document over to scan the image on the other side of the document. This kind of operation is cumbersome, especially for travel agencies, banks, hotels, etc., which often have to scan ID cards in batches. This method can only be scanned one by one, the scanning speed is slow, the efficiency is low,...

AI Technical Summary

Problems solved by technology

This kind of operation is cumbersome, especially for travel agencies, banks, hotels, etc., which often have to scan ID cards in batches. This method can only be scanned one by one, the scanning speed is slow, the efficiency is low, and it is easy to be reversed and misplaced, which brings inconvenience to the application. , poor user experience

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