Digital picture book rapid identification method and system, computer readable storage medium

Abstract

The invention discloses a digital picture book rapid identification method and a system, a computer readable storage medium; the method comprises the following steps: pre-extracting cover feature points of digital picture books stored in a digital picture book stock, and carrying out quantification clustering; extracting cover feature points of a to-be-identified digital picture book, and carryingout quantification clustering; using a cluster-based cover feature point coupling algorithm to identify the digital picture book in the digital picture book stock; if the highest first coupling rateis between the first and second thresholds, selecting a plurality of digital picture books from the digital picture book stock so as to form a candidate digital picture book set; using a non-linear transformation-based cover feature point coupling algorithm to identify digital picture book in the candidate digital picture book set. The method combines the cluster-based cover feature point couplingalgorithm with the non-linear transformation-based cover feature point coupling algorithm so as to identify the digital picture book in the digital picture book stock, thus fast and accurately searching digital picture books.

Description

technical field [0001] The invention relates to the field of digital image processing and pattern recognition based on computer vision, in particular to a method, system and computer-readable storage medium for fast recognition of digital picture books. Background technique [0002] Digital picture books, as a kind of children's educational books that closely combine pictures and words, have been widely recognized for their educational value, and have developed into an early childhood education tool that a new generation of parents are keen on. Therefore, various interactive learning products that match digital picture books have emerged as the times require. pregnancy. Digital picture book recognition is a key technology for interactive learning, and the speed and accuracy of digital picture book recognition will directly affect the user experience of the product. [0003] Existing digital picture book identification methods mainly use three technologies: (1) Coding techno...

AI Technical Summary

Problems solved by technology

[0003] Existing digital picture book identification methods mainly use three technologies: (1) Coding technology, first by encoding the digital picture book information, that is, each digital picture book is uniquely identified and coded, such as using barcodes and two-dimensional codes, and then using hand-held The decoding device decodes the coded area to realize this method. This kind of method requires a specific acquisition device, and can only recognize a specific digital picture book. It also has certain requirements for the operator, and the versatility is not strong.

(2) NFC (Near Field Communication, short-distance wireless communication) technology, by writing the information in the digital picture book page into the NFC chip, and then using the device containing the NFC module to read the information in the NFC chip through a non-contact method. This type of method can only identify customized digital picture books or digital picture books containing customized NFC chips, which has poor versatility, and customized digital picture books and customized NFC chips will increase economic costs

(3) Image feature point matching technology, through the one-to-one matching of the feature points of the cover image of the digital picture book in the digital picture book library and the feature points of the cover image of the digital picture book to be recognized, to realize the recognition of digital picture books. When the digital picture book library is small, such as dozens of books , such methods are relatively effective; when the digital picture book library is large, such as tens of thousands of books, it is necessary to compare the feature points of the cover image of the digital picture book to be recognized with the image of each digital picture book in the digital picture book library , the time consumption increases linearly with the number of books in the digital picture book library, the recognition time will inevitably be very long, and the user experience is poor. Therefore, this method is only suitable for single-machine recognition when the number of digital picture books in the digital picture book library is not large. Recognition of digital picture books in massive digital picture book library in the era of big data network

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