A picture book recognition method based on image recognition and invisible infrared ink technology

Abstract

The invention discloses a picture book recognition method based on image recognition and invisible infrared ink technology, comprising the following steps: 1. preparing invisible infrared ink; 2. printing the invisible infrared ink on a specific position of the picture book; 3. collecting images by a camera; 4. Grayscale the collected image to remove the noise effect; 5. Perform binarization processing on the image; 6. Perform positioning and tilt correction on the infrared image; 7. After binarization, positioning and correction The QR code image is normalized; 8. Error correction is performed on the QR code image after the processing is completed; 9. The audio file is broadcast by voice; the present invention applies invisible infrared ink technology to picture book image recognition, both It can prevent the image recognition module from being disturbed by visible light, quickly recognize the number information printed with invisible infrared ink, and does not affect the normal reading experience of the user, and has comfortable and practical use value.

Description

technical field [0001] The invention relates to a picture book identification method, in particular to a picture book identification method based on image identification and invisible infrared ink technology. Background technique [0002] Education is a popular industry where social capital and consumption gather today. According to data, the market size of China's education industry in 2018 exceeded 2.6 trillion yuan, which is characterized by high consumption level, long investment time and wide coverage; [0003] With the development of artificial intelligence technology and the improvement of people's living standards, products that apply artificial intelligence technology to early childhood education and learning and life are increasingly recognized by the market and parents; [0004] The picture book reading robot is a technological product incubated by emerging technologies. It is mainly based on image recognition technology. It collects, processes and recognizes the ...

AI Technical Summary

Problems solved by technology

[0005] The current picture book recognition method mainly includes judging the page information by identifying the feature points of the picture book page image, and matching the corresponding audio file to play. This method is prone to low recognition accuracy for pages with little difference in picture book content and similar or similar screen features. The problem of confusion or error in the recognition results, and the problem of low recognition rate and wrong recognition caused by light interference;

[0006] The current picture book recognition method also includes determining the picture book file number by identifying the cover of the picture book, judging the page turning by monitoring the page turning action or recognizing the page number characters, and performing voice playback. There are many practical problems in this method, such as after cover recognition. Problems such as picture book replacement, missing content pages, a large number of page turning, and users blocking page numbers will all affect the accuracy of picture book recognition;

[0007] The current picture book recognition method also includes printing the page number on the page, determining the position of the page by identifying the number of each page, and then calling the voice information of the corresponding page from the memory for broadcasting. Although this method can Accurately locate the position and information of the page, but the number information will appear on the page of the picture book, which will affect the child's experience when reading the picture book

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