Book image retrieval method based on computer vision

Abstract

The invention relates to the technical field of computer vision, in particular to a book image retrieval method based on computer vision. The method comprises the steps that: a semantic vector is obtained according to an RGB image of the cover of a to-be-retrieved book , and the category of the to-be-retrieved book is obtained according to the semantic vector; according to the grey-scale image of the cover of the to-be-retrieved book, a character gradient magnitude image and a character gradient direction quantization image are obtained; the RGB image of the cover of the to-be-retrieved book is input, the character gradient magnitude image and the character gradient direction quantization image into a metric learning network of the category of the to-be-retrieved book to obtain an embedded vector of the cover of the to-be-retrieved book; and according to the embedded vector of the cover of the to-be-retrieved book, a low-dimensional projection point of the cover of the to-be-retrieved book is obtained, and the low-dimensional projection point of the cover of the to-be-retrieved book is matched with the low-dimensional projection point of a book cover in a category database to obtain a retrieval result of the book to be retrieved. With the method adopted, the problem that book information cannot be retrieved when a user encounters uncommon characters or book names which cannot be understood is solved, and the application range of the method is wider.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to a book image retrieval method based on computer vision. Background technique [0002] With the development of digital technology and the continuous progress of Internet technology, all industries are constantly progressing in the direction of digitalization. Driven by Internet technology, major libraries have also launched digital library management systems. However, due to the variety of books and the rapid update of information, how readers can retrieve the information they need from these massive amounts of information has become an important research topic. In addition, readers' requirements for book retrieval are also increasing. In addition to some basic information of books, they also need to know related resources of books, and hope to get timely and fast feedback. [0003] Book retrieval is to obtain as accurate book information as possible. The existing method...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing book retrieval method is not widely applicable, the purpose of the present invention is to provide a computer vision-based book image retrieval method, and the adopted technical scheme is as follows:

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