CN109241305B - Image recognition-based picture book reading method and device - Google Patents
Image recognition-based picture book reading method and device Download PDFInfo
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Abstract
The invention relates to the technical field of data processing, and discloses a picture book reading method and device based on image recognition, wherein the method comprises the following steps: acquiring a cover image of the picture book; judging whether the cover image is matched with a locally pre-stored drawing book cover, if so, playing the audio of the matched drawing book cover, and loading the content image data of the matched drawing book; otherwise, uploading the cover image to a background and retrieving the cover image at the background; downloading the searched audio of the drawing book cover and the drawing book content image data to the local; by means of a retrieval mode combining local and background image recognition, a large number of picture books can be read, the picture book data can be updated on line, and the picture book reading speed is improved.
Description
Technical Field
The invention relates to the technical field of data processing, in particular to a picture book reading method and device based on image recognition.
Background
The Picture Book, a Book with a few characters, is a Book with a relatively small number of pages.
The traditional picture book reading method has two types: the one is a point reading pen, which utilizes the technology of adding two-dimension codes on books to implant sound files into the books, a user selects a certain page to be point read in the using process, the user can conveniently click the contents of patterns, characters, numbers and the like on the page, and the point reading pen can recognize the two-dimension codes on the books through a high-speed camera arranged on a pen head to read the sound files of the corresponding contents. The other point reading machine has the principle that in the process of making a pronunciation file, longitude and latitude positions corresponding to the contents of a book are preset in the pronunciation file, a user places a textbook on a flat plate of the machine, and points on the contents of characters, pictures, numbers and the like in the book by using a special pen, so that the machine can make corresponding sounds.
With the development of technology, besides the above-mentioned conventional picture book reading method, picture book reading can also be realized by an image recognition technology, and the principle of the method is as follows: the method comprises the steps of identifying the cover of the picture book which is shot by the camera at present through an image identification technology, then identifying the page to which the user turns in real time, and playing pre-stored audio or audio synthesized by characters after identifying the cover or the page picture to achieve the purpose that the user puts the picture book, reads the picture book, turns to the page and reads the page. The data of drawing book covers and page images, recording, characters and the like need to be input in advance, and along with the increase of the number of the drawing books, the requirements on the CPU capacity and the memory are higher.
There are two ways to realize picture book reading through image recognition technology: an off-line mode, all the picture book data and the image recognition algorithm are operated in the picture book reading device (such as a picture book reading robot), but due to the positioning and cost requirements of the picture book reading device, the performance of other CPUs is relatively weak, and the memory is relatively small, so that the mode can only support a small number of picture books, and the picture book data cannot be increased after the device is sold. The other is an online mode, the picture book data and the image recognition algorithm are both in a background server, and in the mode, the picture book data are uploaded to a background and then recognized, so that the recognition time is slow, the picture book data are influenced by a network, the image recognition speed is slow, and the picture book reading experience is poor.
Disclosure of Invention
The invention mainly aims to provide a picture book reading method and device based on image recognition, which not only supports reading of a large number of picture books, but also can update picture book data on line and improve the reading speed of the picture books in a retrieval mode combining local and background image recognition.
In order to achieve the above object, the present invention provides a picture book reading method based on image recognition, including:
acquiring a cover image of the picture book;
judging whether the cover image is matched with a locally pre-stored drawing book cover, if so, playing the audio of the matched drawing book cover, and loading the content image data of the matched drawing book;
otherwise, uploading the cover image to a background and retrieving the cover image at the background;
and downloading the searched audio and the picture data of the content of the picture book to the local.
Optionally, the acquiring a cover image of the sketch includes:
starting the picture book reading equipment, and loading locally pre-stored picture book cover data;
starting a camera and collecting image data;
and judging whether the entropy value of the image data is larger than a preset threshold value, if so, the image data comprises a cover image of the picture book, and otherwise, not carrying out image analysis and matching.
Optionally, the playing the audio of the matched drawing book cover, and loading the content image data of the matched drawing book further includes:
acquiring image data acquired by the camera in real time;
judging whether the image data is updated or not, if so, carrying out image analysis and matching on the updated image data;
acquiring page data of the updated image data;
and searching the audio corresponding to the page number from the content image data of the picture book, and playing.
Optionally, the background is a service program running on a cloud server, and the background is connected with the picture book reading device through the internet.
Optionally, downloading the retrieved audio and the textbook content image data of the textbook cover to the local includes:
and playing the audio of the drawing book cover and the corresponding drawing book content image data.
As another aspect of the present invention, there is provided a picture reading apparatus based on image recognition, including:
the acquisition module is used for acquiring a cover image of the picture book;
the judging module is used for judging whether the cover image is matched with a locally pre-stored book drawing cover or not;
the playing module is used for playing the audio of the matched drawing book cover and loading the content image data of the matched drawing book;
the retrieval module is used for uploading the cover image to a background and retrieving the cover image at the background;
and the downloading module is used for downloading the searched audio of the drawing book cover and the drawing book content image data to the local.
Optionally, the obtaining module includes:
the loading unit is used for starting the picture book reading equipment and loading the locally pre-stored picture book cover data;
the acquisition unit is used for starting the camera and acquiring image data;
the first judging unit is used for judging whether the entropy value of the image data is larger than a preset threshold value or not, if so, the image data comprises a cover image of the picture book, and otherwise, the image analysis and the matching are not carried out.
Optionally, the playing module includes:
the real-time acquisition unit is used for acquiring image data acquired by the camera in real time;
the second judgment unit is used for judging whether the image data is updated or not, and if yes, the image data after being updated is subjected to image analysis and matching;
a page number updating unit configured to acquire page number data of the updated image data;
and the playing unit is used for searching the audio corresponding to the page number from the content image data of the picture book and playing.
Optionally, the background is a service program running on a cloud server, and the background is connected with the picture book reading device through the internet.
Optionally, the playing module is further configured to:
and playing the audio of the drawing book cover and the corresponding drawing book content image data.
The invention provides a picture book reading method and device based on image recognition, wherein the method comprises the following steps: acquiring a cover image of the picture book; judging whether the cover image is matched with a locally pre-stored drawing book cover, if so, playing the audio of the matched drawing book cover, and loading the content image data of the matched drawing book; otherwise, uploading the cover image to a background and retrieving the cover image at the background; downloading the searched audio of the drawing book cover and the drawing book content image data to the local; by means of a retrieval mode combining local and background image recognition, a large number of picture books can be read, the picture book data can be updated on line, and the picture book reading speed is improved.
Drawings
Fig. 1 is a flowchart of a picture book reading method based on image recognition according to an embodiment of the present invention;
FIG. 2 is a flowchart of the method of step S10 in FIG. 1;
FIG. 3 is a flowchart of the method of step S30 in FIG. 1;
fig. 4 is a block diagram illustrating an exemplary structure of a picture book reading apparatus based on image recognition according to a second embodiment of the present invention;
FIG. 5 is a block diagram illustrating an exemplary structure of the acquisition module of FIG. 4;
fig. 6 is a block diagram illustrating an exemplary structure of the play module in fig. 4.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example one
As shown in fig. 1, in this embodiment, a method for reading a picture book based on image recognition includes:
s10, acquiring a cover image of the picture book;
s20, judging whether the cover image is matched with a locally pre-stored picture book cover, if so, S30, playing the audio of the matched picture book cover, and loading the content image data of the matched picture book;
otherwise, S40, uploading the cover image to the background and retrieving the cover image in the background;
and S50, downloading the searched audio and picture data of the picture content of the picture book cover to the local.
In the embodiment, a retrieval mode combining local and background image recognition is adopted, so that a large amount of picture book reading is supported, the picture book data can be updated on line, and the picture book reading speed is improved.
As shown in fig. 2, in the present embodiment, the step S10 includes:
s11, starting the picture book reading equipment, and loading the locally pre-stored picture book cover data;
s12, starting a camera, and collecting image data;
and S13, judging whether the entropy value of the image data is larger than a preset threshold value, if so, S14, judging that the image data comprises a cover image of the picture book, and otherwise, S15, not carrying out image analysis and matching.
In this embodiment, the picture book reading device refers to an intelligent hardware with a camera and an internet access function, typically an intelligent robot.
In this embodiment, the preset threshold is 6.0, an entropy value of a local area of the image is calculated, and when the entropy value is greater than 6.0, the image is considered to contain the sketch, otherwise, the image is considered to not contain the sketch. For interpretation of image entropy: in the image processing, according to the orderliness of the gray distribution of each pixel point of the image, the local entropy of the image is defined, and the local entropy reflects the richness of the image information. Because the picture book reading equipment is generally placed on a desktop for use, the desktop is generally single and has more pure colors, when the picture book is not placed in front of a camera of the picture book reading equipment, the data acquired by the camera is mainly the desktop, and at the moment, the information of the acquired image is simpler and the entropy value is small; otherwise, when the picture book is placed, the information of the image collected by the camera is rich, the entropy value is large, and the comparison entropy value parameter value is 6.0.
In this embodiment, the audio of the book cover includes: draw title, author, draw this series, etc.
As shown in fig. 3, in this embodiment, the S30 further includes:
s31, acquiring image data acquired by the camera in real time;
s32, judging whether the image data are updated or not, if so, S33, carrying out image analysis and matching on the updated image data;
s34, acquiring page number data of the updated image data;
s35, searching audio corresponding to the page number from the content image data of the picture book, and playing;
if the image data is not updated, S36, the image is continuously acquired.
In this embodiment, after the user starts to draw the book and read, the user may end drawing the book and reading at any flow node, unload the drawing data, and release the camera.
In this embodiment, the background is a service program running on a cloud server, and the background is connected to the picture book reading device through the internet.
In this embodiment, the downloading the retrieved audio and the textbook content image data of the textbook cover to the local includes:
and playing the audio of the drawing book cover and the corresponding drawing book content image data.
In this embodiment, by a method combining local and background image recognition, the picture book reading device can support a large amount of picture book data and also has a better picture book reading experience. In the invention, all the picture book data are on the background, hundreds of thousands of picture book data can be supported, the picture book reading device locally stores the read picture book data, and generally, the number of the picture books of a single user is within tens of pictures books, so that the speed of locally analyzing, retrieving and matching the picture books with the number can achieve good reading experience. In the aspect of reading the contents of the picture book, the number of pages of the picture book is generally less, so that the data of the contents of the picture book are locally stored, and image analysis, retrieval and matching are carried out, and good reading experience can be achieved.
Example two
As shown in fig. 4, in this embodiment, a picture book reading device based on image recognition includes:
the acquisition module 10 is used for acquiring a cover image of the picture book;
the judging module 20 is configured to judge whether the cover image matches a locally pre-stored book drawing cover;
the playing module 30 is used for playing the audio of the matched drawing book cover and loading the content image data of the matched drawing book;
the retrieval module 40 is used for uploading the cover image to a background and retrieving the cover image in the background;
and the downloading module 50 is configured to download the retrieved audio of the cover page of the picture book and the picture data of the content of the picture book to the local.
In the embodiment, a retrieval mode combining local and background image recognition is adopted, so that a large amount of picture book reading is supported, the picture book data can be updated on line, and the picture book reading speed is improved.
As shown in fig. 5, in this embodiment, the obtaining module includes:
the loading unit 11 is used for starting the book drawing reading device and loading the book drawing cover data prestored locally;
the acquisition unit 12 is used for starting the camera and acquiring image data;
the first judging unit 13 is configured to judge whether an entropy value of the image data is greater than a preset threshold, if so, the image data includes a cover image of the picture book, and otherwise, the image data is not subjected to image analysis and matching.
In this embodiment, the picture book reading device refers to an intelligent hardware with a camera and an internet access function, typically an intelligent robot.
In this embodiment, the preset threshold is 6.0, an entropy value of a local area of the image is calculated, and when the entropy value is greater than 6.0, the image is considered to contain the sketch, otherwise, the image is considered to not contain the sketch. For interpretation of image entropy: in the image processing, according to the orderliness of the gray distribution of each pixel point of the image, the local entropy of the image is defined, and the local entropy reflects the richness of the image information. Because the picture book reading equipment is generally placed on a desktop for use, the desktop is generally single and has more pure colors, when the picture book is not placed in front of a camera of the picture book reading equipment, the data acquired by the camera is mainly the desktop, and at the moment, the information of the acquired image is simpler and the entropy value is small; otherwise, when the picture book is placed, the information of the image collected by the camera is rich, the entropy value is large, and the comparison entropy value parameter value is 6.0.
In this embodiment, the audio of the book cover includes: draw title, author, draw this series, etc.
As shown in fig. 6, in this embodiment, the playing module includes:
the real-time acquisition unit 31 is used for acquiring image data acquired by the camera in real time;
a second judging unit 32, configured to judge whether the image data is updated, and if yes, perform image analysis and matching on the updated image data;
a page number updating unit 33 configured to acquire page number data of the updated image data;
and the playing unit 34 is configured to search for the audio corresponding to the page number from the content image data of the picture book, and play the audio.
In this embodiment, after the user starts to draw the book and read, the user may end drawing the book and reading at any flow node, unload the drawing data, and release the camera.
In this embodiment, the background is a service program running on a cloud server, and the background is connected to the picture book reading device through the internet.
In this embodiment, the playing module is further configured to:
and playing the audio of the drawing book cover and the corresponding drawing book content image data.
In this embodiment, by a method combining local and background image recognition, the picture book reading device can support a large amount of picture book data and also has a better picture book reading experience. In the invention, all the picture book data are on the background, hundreds of thousands of picture book data can be supported, the picture book reading device locally stores the read picture book data, and generally, the number of the picture books of a single user is within tens of pictures books, so that the speed of locally analyzing, retrieving and matching the picture books with the number can achieve good reading experience. In the aspect of reading the contents of the picture book, the number of pages of the picture book is generally less, so that the data of the contents of the picture book are locally stored, and image analysis, retrieval and matching are carried out, and good reading experience can be achieved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A picture book reading method based on image recognition is characterized by comprising the following steps:
storing all the drawing data on a background in advance;
obtain the cover image of drawing the book, obtain the cover image of drawing the book and include:
starting the picture book reading equipment, and loading locally pre-stored picture book cover data;
starting a camera and collecting image data;
judging whether the entropy value of the image data is larger than a preset threshold value, if so, the image data comprises a cover image of the picture book, otherwise, not carrying out image analysis and matching; the entropy value of the image data is the entropy value of a local area of the image calculated according to the order of the gray distribution of each pixel point of the image;
judging whether the cover image is matched with a locally pre-stored drawing book cover, if so, playing the audio of the matched drawing book cover, and loading the content image data of the matched drawing book;
otherwise, uploading the cover image to a background and retrieving the cover image at the background;
downloading the searched audio of the drawing book cover and the drawing book content image data to the local;
the drawing book reading device locally stores the read drawing book data.
2. The method as claimed in claim 1, wherein the step of playing the audio of the matched sketch cover and loading the content image data of the matched sketch further comprises:
acquiring image data acquired by the camera in real time;
judging whether the image data is updated or not, if so, carrying out image analysis and matching on the updated image data;
acquiring page data of the updated image data;
and searching the audio corresponding to the page number from the content image data of the picture book, and playing.
3. The picture book reading method based on image recognition is characterized in that the background is a service program running on a cloud server, and the background is connected with the picture book reading device through the internet.
4. The method as claimed in claim 1, wherein downloading the retrieved audio and image data of the content of the sketch cover to the local comprises:
and playing the audio of the drawing book cover and the corresponding drawing book content image data.
5. A picture book reading device based on image recognition is characterized by comprising:
the acquisition module is used for acquiring a cover image of the picture book;
the judging module is used for judging whether the cover image is matched with a locally pre-stored book drawing cover or not, and comprises the following steps:
the loading unit is used for starting the picture book reading equipment and loading the locally pre-stored picture book cover data;
the acquisition unit is used for starting the camera and acquiring image data;
the first judging unit is used for judging whether the entropy value of the image data is larger than a preset threshold value or not, if so, the image data comprises a cover image of the picture book, and otherwise, the image analysis and matching are not carried out; the entropy value of the image data is the entropy value of a local area of the image calculated according to the order of the gray distribution of each pixel point of the image;
the playing module is used for playing the audio of the matched drawing book cover and loading the content image data of the matched drawing book;
the retrieval module is used for uploading the cover image to a background and retrieving the cover image at the background;
the downloading module is used for downloading the searched audio of the cover of the picture book and the picture data of the picture book content to the local;
and the storage module is used for storing the audio frequency of the retrieved picture book cover and the picture data of the picture book content downloaded to the local.
6. The picture-recognition-based picture-book reading device according to claim 5, wherein the playing module comprises:
the real-time acquisition unit is used for acquiring image data acquired by the camera in real time;
the second judgment unit is used for judging whether the image data is updated or not, and if yes, the image data after being updated is subjected to image analysis and matching;
a page number updating unit configured to acquire page number data of the updated image data;
and the playing unit is used for searching the audio corresponding to the page number from the content image data of the picture book and playing.
7. The picture book reading device based on image recognition as claimed in claim 5, wherein the background is a service program running on a cloud server, and the background is connected to the picture book reading device through the internet.
8. The picture-recognition-based picture-book reading device according to claim 5, wherein the playing module is further configured to:
and playing the audio of the drawing book cover and the corresponding drawing book content image data.
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| CN110033023B (en) * | 2019-03-11 | 2021-06-15 | 北京光年无限科技有限公司 | Image data processing method and system based on picture book recognition |
| CN110087270B (en) * | 2019-05-15 | 2021-09-17 | 深圳市沃特沃德信息有限公司 | Reading method and device, storage medium and computer equipment |
| CN110263187A (en) * | 2019-06-19 | 2019-09-20 | 深圳市沃特沃德股份有限公司 | Draw this recognition methods, device, storage medium and computer equipment |
| CN110909196B (en) * | 2019-10-28 | 2022-07-01 | 北京光年无限科技有限公司 | Processing method and device for identifying inner page cover switching in picture book reading process |
| CN111028290B (en) * | 2019-11-26 | 2024-03-08 | 北京光年无限科技有限公司 | Graphic processing method and device for drawing book reading robot |
| CN111145604A (en) * | 2019-12-30 | 2020-05-12 | 西安Tcl软件开发有限公司 | Method and device for recognizing picture books and computer readable storage medium |
| CN113673277B (en) * | 2020-05-13 | 2024-06-21 | 百度在线网络技术（北京）有限公司 | Method and device for acquiring online drawing content and intelligent screen equipment |
| CN112487929A (en) * | 2020-11-25 | 2021-03-12 | 深圳市云希谷科技有限公司 | Image recognition method, device and equipment of children picture book and storage medium |
| CN113672747A (en) * | 2021-08-20 | 2021-11-19 | 云知声（上海）智能科技有限公司 | Intelligent talking accompanying reading system and method for children's book |
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