CN111914821A - Dictation detection method and electronic equipment - Google Patents
Dictation detection method and electronic equipment Download PDFInfo
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- CN111914821A CN111914821A CN201910387341.1A CN201910387341A CN111914821A CN 111914821 A CN111914821 A CN 111914821A CN 201910387341 A CN201910387341 A CN 201910387341A CN 111914821 A CN111914821 A CN 111914821A
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- 238000003384 imaging method Methods 0.000 claims description 2
- 238000004590 computer program Methods 0.000 description 9
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- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/22—Image preprocessing by selection of a specific region containing or referencing a pattern; Locating or processing of specific regions to guide the detection or recognition
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- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/14—Image acquisition
- G06V30/148—Segmentation of character regions
- G06V30/153—Segmentation of character regions using recognition of characters or words
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
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Abstract
The embodiment of the invention relates to the technical field of education, and discloses a dictation detection method and electronic equipment, wherein the method comprises the following steps: acquiring a target angle formed between the top edge of the handwriting book and the bottom edge of the electronic equipment contact desktop through camera equipment on the electronic equipment; judging whether the target angle is larger than a preset angle or not; if so, outputting first voice prompt information, wherein the first voice prompt information is used for prompting a user to adjust the placing position of the handwriting book so that the target angle is adjusted to be smaller than or equal to a preset angle; when the target angle is adjusted to be smaller than or equal to the preset angle, the writing content on the handwriting book is completely shot by the camera equipment. By implementing the embodiment of the invention, the complete writing content can be shot, and the dictation detection effect can be improved.
Description
Technical Field
The invention relates to the technical field of education, in particular to a dictation detection method and electronic equipment.
Background
At present, when a user uses an electronic device (such as a family education machine) to listen and write, the electronic device can use a camera of the electronic device to shoot writing contents of a handwritten book when the user listens and writes, and then the writing contents are detected to obtain a listening and writing result. In practice, it is found that if the handwriting book is placed in the shooting range of the camera of the electronic equipment according to the specification, the camera can shoot the writing content, but if the handwriting book is placed out of specification, the camera cannot shoot the complete writing content easily, and the detection result is affected.
Disclosure of Invention
The embodiment of the invention discloses a dictation detection method and electronic equipment, which are beneficial to shooting complete written contents and improving the effect of dictation detection.
The first aspect of the embodiment of the invention discloses a dictation detection method, wherein electronic equipment is arranged on a desktop, and a handwriting book is horizontally arranged on the desktop, and the method comprises the following steps:
acquiring a target angle formed between the top edge of the handwriting book and the bottom edge of the desktop contacted by the electronic equipment through a camera on the electronic equipment;
judging whether the target angle is larger than a preset angle or not;
if so, outputting first voice prompt information, wherein the first voice prompt information is used for prompting a user to adjust the placing position of the handwriting book so that the target angle is adjusted to be smaller than or equal to the preset angle; when the target angle is adjusted to be smaller than or equal to the preset angle, the writing content on the handwriting book is completely shot by the camera equipment.
As an optional implementation manner, in the first aspect of the embodiment of the present invention, after determining that the target angle is smaller than or equal to a preset angle, the method further includes:
acquiring a target distance between the center of the top edge of the handwritten book and the center of the bottom edge of the desktop contacted by the electronic equipment through the camera equipment;
judging whether the target distance is greater than a specified distance; the specified distance is obtained by calculating the target angle, the preset angle and a preset distance;
if so, outputting second voice prompt information, wherein the second voice prompt information is used for prompting the user to adjust the placing position of the handwriting book so that the target distance is adjusted to be smaller than or equal to the specified distance; wherein, when the target distance is adjusted to be less than or equal to the specified distance, the writing content on the handwriting book is completely shot by the image pickup device.
As an optional implementation manner, in the first aspect of the embodiment of the present invention, after the obtaining, by the image capturing device on the electronic device, a target angle formed between the top edge of the handwritten book and the bottom edge of the electronic device contacting the desktop, and before the determining whether the target angle is greater than a preset angle, the method further includes:
displaying the degree of the target angle on a display screen of the electronic equipment;
and when the target angle is judged to be larger than the preset angle, adjusting the color of the degree of the target angle displayed on the display screen to be a designated color, and executing the step of outputting the first voice prompt message.
As an alternative implementation, in the first aspect of the embodiment of the present invention, the script is a music score; after the outputting the first voice prompt message, the method further comprises:
shooting a writing image of the user on the music score through the camera device;
recognizing writing contents of the user on the music score from the writing image;
detecting the writing content according to the dictation content played by the electronic equipment to obtain a dictation detection result; wherein, the dictation content is a plurality of musical notes;
and outputting the dictation detection result.
As an optional implementation manner, in the first aspect of the embodiment of the present invention, the detecting the written content according to the dictation content played by the electronic device, and obtaining a dictation detection result includes:
acquiring writing information of the user on the music score recorded by the camera equipment; the writing information comprises a writing sequence and a writing note interval;
segmenting the written content according to the written information and the number of notes included in the dictation content to obtain a plurality of notes;
and detecting the plurality of notes according to the notes in the dictation content to obtain a dictation detection result.
As an optional implementation manner, in the first aspect of the embodiment of the present invention, after the outputting the dictation detection result, the method further includes:
outputting and displaying a simulated music keyboard on a display screen of the electronic equipment, and outputting third voice prompt information; the third voice prompt message is used for prompting the user to play the dictation content on the simulated music keyboard;
and detecting a target note clicked on the simulated music keyboard by the user, and outputting a sound effect corresponding to the target note.
A second aspect of an embodiment of the present invention discloses an electronic device, wherein the electronic device is standing on a desktop, and a handwriting book is horizontally placed on the desktop, and the electronic device includes:
the angle acquisition unit is used for acquiring a target angle formed between the top edge of the handwriting book and the bottom edge of the desktop contacted by the electronic equipment through the camera equipment on the electronic equipment;
the first judgment unit is used for judging whether the target angle is larger than a preset angle or not;
a first output unit, configured to output first voice prompt information when a determination result of the first determination unit is yes, where the first voice prompt information is used to prompt a user to adjust a placement position of the handwriting book, so that the target angle is adjusted to be less than or equal to the preset angle; when the target angle is adjusted to be smaller than or equal to the preset angle, the writing content on the handwriting book is completely shot by the camera equipment.
As an optional implementation manner, in the second aspect of the embodiment of the present invention, the electronic device further includes:
a distance obtaining unit, configured to obtain, by the image pickup apparatus, a target distance between a center of a top edge of the handwritten book and a center of a bottom edge of the electronic apparatus that contacts the desktop when the determination result of the first determining unit is negative;
a second judgment unit, configured to judge whether the target distance is greater than a specified distance; the specified distance is obtained by calculating the target angle, the preset angle and a preset distance;
a second output unit, configured to output second voice prompt information when a determination result of the second determination unit is yes, where the second voice prompt information is used to prompt the user to adjust a placement position of the script, so that the target distance is adjusted to be less than or equal to the specified distance; wherein, when the target distance is adjusted to be less than or equal to the specified distance, the writing content on the handwriting book is completely shot by the image pickup device.
As an optional implementation manner, in the second aspect of the embodiment of the present invention, the electronic device further includes:
the degree display unit is used for displaying the degree of the target angle on a display screen of the electronic equipment after the angle acquisition unit acquires the target angle formed between the top edge of the handwritten book and the bottom edge of the desktop contacted by the electronic equipment through the camera equipment on the electronic equipment and before the first judgment unit judges whether the target angle is larger than a preset angle;
and the first output unit is further used for adjusting the color of the degree of the target angle displayed on the display screen to a specified color and outputting first voice prompt information when the judgment result of the first judgment unit is yes.
As an alternative implementation, in the second aspect of the embodiment of the present invention, the handwritten book is a music score; the electronic device further includes:
an image shooting unit, configured to shoot a writing image of the user on the music score through the image capturing apparatus after the first output unit outputs the first voice prompt information;
a content recognition unit configured to recognize, from the written image, written content of the user on the music score;
the dictation detection unit is used for detecting the writing content according to the dictation content played by the electronic equipment to obtain a dictation detection result; wherein, the dictation content is a plurality of musical notes;
and the result output unit is used for outputting the dictation detection result.
As an optional implementation manner, in a second aspect of the embodiment of the present invention, the dictation detection unit includes:
an acquisition subunit, configured to acquire writing information of the user on the music score recorded by the imaging apparatus; the writing information comprises a writing sequence and a writing note interval;
the segmentation subunit is used for segmenting the written content according to the written information and the number of notes included in the dictation content to obtain a plurality of notes;
and the detecting subunit is used for detecting the plurality of notes according to the notes in the dictation content to obtain a dictation detection result.
As an optional implementation manner, in the second aspect of the embodiment of the present invention, the electronic device further includes:
the output display unit is used for outputting and displaying a simulated music keyboard on a display screen of the electronic equipment and outputting third voice prompt information after the result output unit outputs the dictation detection result; the third voice prompt message is used for prompting the user to play the dictation content on the simulated music keyboard;
and the detection output unit is used for detecting a target note clicked on the simulated music keyboard by the user and outputting a sound effect corresponding to the target note.
A third aspect of an embodiment of the present invention discloses an electronic device, including:
a memory storing executable program code;
a processor coupled with the memory;
the processor calls the executable program code stored in the memory to execute the dictation detection method disclosed by the first aspect of the embodiment of the invention.
A fourth aspect of the embodiments of the present invention discloses a computer-readable storage medium storing a computer program, where the computer program causes a computer to execute a dictation detection method disclosed in the first aspect of the embodiments of the present invention.
A fifth aspect of embodiments of the present invention discloses a computer program product, which, when run on a computer, causes the computer to perform some or all of the steps of any one of the methods of the first aspect.
A sixth aspect of the present embodiment discloses an application publishing platform, where the application publishing platform is configured to publish a computer program product, where the computer program product is configured to, when running on a computer, cause the computer to perform part or all of the steps of any one of the methods in the first aspect.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
in the embodiment of the invention, the target angle formed between the top edge of the handwritten book and the bottom edge of the contact desktop of the electronic equipment is obtained through the camera equipment on the electronic equipment, and if the target angle is smaller than or equal to the preset angle, the shooting effect cannot be influenced by the position of the handwritten book; if this target angle is greater than and predetermines the angle, because the position deviation of this script greatly can influence the shooting effect this moment, so output voice prompt information is used for promoting the user to adjust the locating place of this script of handwriting for the target angle is adjusted to being less than or equal to and predetermines the angle, lets the script of handwriting put in camera device's shooting range, is favorable to shooing complete written content, promotes the effect that the dictation detected.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic flow chart of a dictation detection method disclosed in an embodiment of the present invention;
FIG. 2 is a schematic view of an electronic device and a handwriting book placed on a desktop;
FIG. 3 is a schematic flow chart of another dictation detection method disclosed in the embodiments of the present invention;
FIG. 4 is a schematic flow chart of another dictation detection method disclosed in the embodiments of the present invention;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the disclosure;
FIG. 6 is a schematic structural diagram of another electronic device disclosed in the embodiments of the present invention;
fig. 7 is a schematic structural diagram of another electronic device disclosed in the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first", "second", "third", and the like in the description and the claims of the present invention are used for distinguishing different objects, and are not used for describing a specific order. The terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiment of the invention discloses a dictation detection method and electronic equipment, which are beneficial to shooting complete written contents and improving the effect of dictation detection. The following detailed description is made in view of electronic devices with reference to the accompanying drawings.
Example one
Referring to fig. 1, fig. 1 is a schematic flow chart of a dictation detection method according to an embodiment of the present invention. As shown in fig. 1, the dictation detection method may include the following steps.
101. The electronic equipment acquires a target angle formed between the top edge of the handwriting book and the bottom edge of the contact desktop of the electronic equipment through the camera equipment on the electronic equipment.
In the embodiment of the present invention, the electronic device may be a family education machine, a learning tablet, or the like, and the embodiment of the present invention is not limited. The camera equipment on the electronic equipment can be combined with the reflector, so that the camera equipment can shoot the visual fields in different directions, and further the visual fields can be shot between the top edge of the handwriting book and the bottom edge of the desktop contacted by the electronic equipment. The method comprises the steps that after receiving a dictation detection instruction triggered by a user in a voice mode or a touch screen mode, the electronic equipment enters a dictation detection mode, starts the camera equipment, monitors the position between the top edge of the handwriting book and the bottom edge of the electronic equipment contact desktop in real time through the camera equipment, and obtains a target angle formed between the top edge of the handwriting book and the bottom edge of the electronic equipment contact desktop.
As an alternative implementation manner, the electronic device may obtain an inclination of the electronic device when standing on the desktop and a shooting angle of an image capturing device on the electronic device, obtain an initial angle formed between a top edge of the handwriting book and a bottom edge of the electronic device contacting the desktop through the image capturing device, and calibrate the initial angle according to the inclination of the electronic device and the shooting angle of the image capturing device, so as to obtain a target angle formed between the top edge of the handwriting book and the bottom edge of the electronic device contacting the desktop. By implementing the implementation mode, the acquired target angle can be more fit with the real angle formed between the top edge of the handwriting book and the bottom edge of the electronic equipment contact desktop, and the accuracy of the target angle is improved.
102. The electronic equipment judges whether the target angle is larger than a preset angle or not; if yes, go to step 103; if not, the flow is ended.
Specifically, assuming that the preset angle is 20 °, the electronic device determines whether a target angle formed between the top edge of the handwritten book and the bottom edge of the electronic device contacting the desktop is greater than 20 °; if the target angle is greater than 20 °, executing step 103; if the target angle is less than or equal to 20 °, the present flow is ended. As shown in fig. 2, the electronic device stands on a desktop, and the handwriting book is horizontally placed on the desktop, as shown by 201 in fig. 2, an angle between a top edge of the handwriting book and a bottom edge of the electronic device contacting the desktop is smaller than a preset angle, and at this time, the handwriting book is within a shooting range of the camera device, and writing contents on the handwriting book can be completely shot by the camera device; as shown at 202 in fig. 2, an angle between the top edge of the handwriting book and the bottom edge of the electronic device contacting the desktop is larger than a preset angle, and at this time, a partial area of the handwriting book is not within a shooting range of the image capturing device, and the writing content on the handwriting book cannot be completely shot by the image capturing device, so that the placement position of the handwriting book needs to be adjusted.
As an alternative embodiment, the electronic device may obtain the size of the handwriting through the shooting device, determine the preset angle according to the size of the handwriting, and determine whether the target angle is greater than the preset angle after obtaining the target angle formed between the top edge of the handwriting and the bottom edge of the contact desktop of the electronic device through the shooting device. By implementing the embodiment, the preset angle can be adjusted according to different sizes of the handwritten book, so that the position adjustment of the handwritten book is more accurate.
103. The electronic equipment outputs first voice prompt information, wherein the first voice prompt information is used for prompting a user to adjust the placing position of the handwriting book so that the target angle is adjusted to be smaller than or equal to a preset angle; when the target angle is adjusted to be smaller than or equal to the preset angle, the writing content on the handwriting book is completely shot by the camera equipment.
It can be seen that, with the adoption of the dictation detection method described in fig. 1, a target angle formed between the top edge of the handwritten book and the bottom edge of the contact desktop of the electronic device is acquired through the camera device on the electronic device, and if the target angle is smaller than or equal to a preset angle, the shooting effect cannot be affected by the position of the handwritten book; if this target angle is greater than and predetermines the angle, because the position deviation of this script greatly can influence the shooting effect this moment, so output voice prompt information is used for promoting the user to adjust the locating place of this script of handwriting for the target angle is adjusted to being less than or equal to and predetermines the angle, lets the script of handwriting put in camera device's shooting range, is favorable to shooing complete written content, promotes the effect that the dictation detected.
Example two
Referring to fig. 3, fig. 3 is a schematic flow chart of another dictation detection method disclosed in the embodiment of the present invention. As shown in fig. 3, the dictation detection method may include the following steps.
301. The electronic equipment acquires a target angle formed between the top edge of the handwriting book and the bottom edge of the contact desktop of the electronic equipment through the camera equipment on the electronic equipment.
The electronic equipment is arranged on a desktop in a standing mode, and the handwriting book is horizontally arranged on the desktop.
302. The electronic equipment displays the degree of the target angle on a display screen of the electronic equipment.
303. The electronic equipment judges whether the target angle is larger than a preset angle or not; if so, go to step 304; if not, steps 305-307 are performed.
304. The electronic equipment adjusts the color of the degree of the target angle displayed on the display screen to be a designated color and outputs first voice prompt information, wherein the first voice prompt information is used for prompting a user to adjust the placing position of the handwriting book so that the target angle is adjusted to be smaller than or equal to a preset angle; when the target angle is adjusted to be smaller than or equal to the preset angle, the writing content on the handwriting book is completely shot by the camera equipment.
Specifically, the designated color may be red, and the electronic device adjusts the color of the degree of the target angle displayed on the display screen to red, so as to warn the user that an angle formed between the top edge of the handwriting book and the bottom edge of the electronic device contacting the desktop is too large, so that the user can adjust the angle in time.
305. The electronic equipment acquires a target distance between the center of the top edge of the handwriting book and the center of the bottom edge of the desktop contacted by the electronic equipment through the camera equipment.
306. The electronic equipment judges whether the target distance is greater than a specified distance; the specified distance is obtained by calculating a target angle, a preset angle and a preset distance; if yes, go to step 307; if not, the flow is ended.
In the embodiment of the present invention, the preset distance a is a distance between the bottom edge of the handwritten book and the edge of the shooting range of the image capturing apparatus when the top edge of the handwritten book is attached to the bottom edge of the contact desktop of the electronic apparatus, and if the target angle is B and the preset angle is C, the specified distance D is a/cos (C-B).
Specifically, assuming that the specified distance is 3 cm, the electronic device determines whether a target distance between a center of a top edge of the handwriting book and a center of a bottom edge of the electronic device contacting the desktop is greater than 3 cm, and if the target distance is greater than 3 cm, step 307 is executed; if the target distance is less than or equal to 3 cm, the process is ended. As shown in 203 in fig. 2, an angle between the top edge of the handwriting book and the bottom edge of the electronic device contacting the desktop is smaller than a preset angle, but a distance between the center of the top edge of the handwriting book and the center of the bottom edge of the electronic device contacting the desktop is relatively long and is greater than a specified distance, and at this time, a partial area of the handwriting book is not within a shooting range of the image capturing device, and the writing content on the handwriting book cannot be completely shot by the image capturing device, so that the placement position of the handwriting book needs to be adjusted.
As an optional implementation manner, the electronic device may obtain the size of the handwriting through the shooting device, determine a preset distance according to the size of the handwriting, and calculate a specified distance according to the preset distance, the target angle, and the preset angle; after a target distance between the center of the top edge of the handwriting book and the center of the bottom edge of the electronic device contact desktop is acquired through the image pickup device, whether the target distance is larger than a specified distance or not is judged. By implementing the embodiment, the preset distance can be adjusted according to different sizes of the handwriting book, so that the position adjustment of the handwriting book is more accurate.
307. The electronic equipment outputs second voice prompt information which is used for prompting a user to adjust the placing position of the handwriting book so that the target distance is adjusted to be smaller than or equal to the specified distance; when the target distance is adjusted to be smaller than or equal to the designated distance, the writing content on the handwriting book is completely shot by the camera equipment.
It can be seen that, with the adoption of the dictation detection method described in fig. 3, whether the handwriting book is in the shooting range of the camera device is judged through the target angle formed between the top edge of the handwriting book and the bottom edge of the electronic device contact desktop and the target distance between the center of the top edge of the handwriting book and the center of the bottom edge of the electronic device contact desktop, if not, the user is prompted to adjust the placement position of the handwriting book, so that the handwriting book is placed in the shooting range of the camera device, the complete writing content is favorably shot, and the dictation detection effect is improved.
EXAMPLE III
Referring to fig. 4, fig. 4 is a schematic flow chart of another dictation detection method disclosed in the embodiment of the present invention. As shown in fig. 4, the dictation detection method may include the following steps.
401. The electronic equipment acquires a target angle formed between the top edge of the handwriting book and the bottom edge of the contact desktop of the electronic equipment through the camera equipment on the electronic equipment.
The electronic equipment is arranged on a desktop in a standing mode, the handwriting book is horizontally arranged on the desktop, and the handwriting book is a music score.
402. The electronic equipment judges whether the target angle is larger than a preset angle or not; if yes, executing step 403-step 411; if not, the flow is ended.
403. The electronic equipment outputs first voice prompt information, wherein the first voice prompt information is used for prompting a user to adjust the placing position of the handwriting book so that the target angle is adjusted to be smaller than or equal to a preset angle; when the target angle is adjusted to be smaller than or equal to the preset angle, the writing content on the handwriting book is completely shot by the camera equipment.
404. The electronic device captures a written image of a user on a music score through the image capturing device.
In the embodiment of the invention, the music score can be a digital numbered musical notation, 7 basic musical grades in the musical scale are represented by notes 1, 2, 3, 4, 5, 6 and 7, the reading is do, re, mi, fa, sol, la and si, and the rest is represented by 0. The writing image of the user on the music score captured by the electronic device through the image capturing device may be one or more of the notes 1, 2, 3, 4, 5, 6, 7, and may be repeatable. When the voice played by the electronic equipment corresponds to a note, the note in the written image can be one; when the voice played by the electronic device corresponds to a plurality of notes or a short song, the number of notes in the written image can be multiple.
405. The electronic device recognizes the user's writing on the music score from the writing image.
In the embodiment of the invention, the electronic equipment identifies the writing content of the user on the music score from the writing image, namely identifies the notes written by the user on the music score.
406. The electronic equipment acquires writing information of a user on a music score recorded by the camera equipment; the writing information includes a writing order and a writing note interval.
407. The electronic equipment divides the written content according to the written information and the number of notes included in the dictation content to obtain a plurality of notes.
In the embodiment of the invention, the electronic equipment can divide the notes included in the written content according to the writing sequence of the notes, the writing note interval and the number of the notes included in the dictation content to obtain a plurality of notes, so that the notes in the dictation content correspond to the notes in the written content one to one, the situation that the notes which do not correspond to each other are mixed during detection is avoided, and the error rate during detection is reduced.
408. The electronic equipment detects the plurality of notes according to the notes in the dictation content to obtain a dictation detection result.
In the embodiment of the invention, the electronic equipment detects each note after the note segmentation included in the writing content by using each note in the dictation content according to the corresponding relation of each note after the segmentation to obtain the dictation detection structure, so that the dictation detection accuracy can be improved.
Therefore, by implementing the method, the notes included in the written content of the user on the music score can be detected when the dictation content is the music, and the corresponding relation between the dictation content and each note in the written content is detected, so that the accuracy of dictation detection is improved.
409. And the electronic equipment outputs a dictation detection result.
410. The electronic equipment outputs and displays the simulated music keyboard on a display screen of the electronic equipment and outputs third voice prompt information; the third voice prompt message is used for prompting the user to play and listen to the written content on the simulated music keyboard.
411. The electronic equipment detects a target note clicked by a user on the simulated music keyboard and outputs a sound effect corresponding to the target note.
In the embodiment of the invention, the method is implemented, the simulated music keyboard is output and displayed on the display screen, so that the user plays the dictation content and outputs the sound effect played by the user, the dictation music can be trained firmly, and the user can conveniently check the music level.
As an optional implementation manner, after the electronic device outputs the dictation detection result, when the dictation detection result indicates that a certain note is wrong, selecting a target note group corresponding to a piece of music in which the note is included in the written content, and extracting a correct note group corresponding to the target note group in the dictation content; and playing the sound effect corresponding to the target note group and the correct note group. By implementing the embodiment, the user can compare the sound effect of the wrong note with the sound effect of the correct note, and the music level of the user is further checked.
Therefore, the dictation detection method described in fig. 4 is beneficial to shooting complete written contents and improving the dictation detection effect. In addition, when the dictation content is music, notes included in the writing content of the user on the music score can be detected, and the corresponding relation between the dictation content and each note in the writing content is detected, so that the accuracy of dictation detection is improved, a display simulation music keyboard can be output and displayed on a display screen, the user can play the dictation content, the sound effect played by the user is output, the dictation music is subjected to consolidation training, and the user can conveniently check the music level of the user.
Example four
Referring to fig. 5, fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the disclosure. As shown in fig. 5, the electronic device may include:
an angle acquisition unit 501, configured to acquire, by an image pickup apparatus on the electronic apparatus, a target angle formed between a top edge of the handwriting and a bottom edge of the electronic apparatus contacting the desktop.
The electronic equipment is arranged on the desktop in a standing mode, and the handwriting book is horizontally arranged on the desktop.
In the embodiment of the present invention, the electronic device may be a family education machine, a learning tablet, or the like, and the embodiment of the present invention is not limited. The camera equipment on the electronic equipment can be combined with the reflector, so that the camera equipment can shoot the visual fields in different directions, and further the visual fields can be shot between the top edge of the handwriting book and the bottom edge of the desktop contacted by the electronic equipment. After receiving a dictation detection instruction triggered by a user in a voice mode or a touch screen mode, the electronic device enters a dictation detection mode, starts the camera device, and the angle acquisition unit 501 monitors the position between the top edge of the handwriting book and the bottom edge of the electronic device contact desktop in real time through the camera device to acquire a target angle formed between the top edge of the handwriting book and the bottom edge of the electronic device contact desktop.
As an alternative embodiment, the angle obtaining unit 501 may obtain an inclination of the electronic device when standing on the desktop and a shooting angle of an image capturing device on the electronic device, obtain an initial angle formed between a top edge of the handwriting book and a bottom edge of the electronic device contacting the desktop through the image capturing device, and calibrate the initial angle according to the inclination of the electronic device and the shooting angle of the image capturing device, so as to obtain a target angle formed between the top edge of the handwriting book and the bottom edge of the electronic device contacting the desktop. By implementing the implementation mode, the acquired target angle can be more fit with the real angle formed between the top edge of the handwriting book and the bottom edge of the electronic equipment contact desktop, and the accuracy of the target angle is improved.
A first determining unit 502, configured to determine whether the target angle is greater than a preset angle.
Specifically, assuming that the preset angle is 20 °, the first determination unit 502 determines whether a target angle formed between the top edge of the handwritten book and the bottom edge of the electronic device contact desktop is greater than 20 °; if the target angle is greater than 20 °, the first output unit 503 is executed; if the target angle is less than or equal to 20 °, the present flow is ended. As shown in fig. 2, the electronic device stands on a desktop, and the handwriting book is horizontally placed on the desktop, as shown by 201 in fig. 2, an angle between a top edge of the handwriting book and a bottom edge of the electronic device contacting the desktop is smaller than a preset angle, and at this time, the handwriting book is within a shooting range of the camera device, and writing contents on the handwriting book can be completely shot by the camera device; as shown at 202 in fig. 2, an angle between the top edge of the handwriting book and the bottom edge of the electronic device contacting the desktop is larger than a preset angle, and at this time, a partial area of the handwriting book is not within a shooting range of the image capturing device, and the writing content on the handwriting book cannot be completely shot by the image capturing device, so that the placement position of the handwriting book needs to be adjusted.
As an alternative embodiment, the first determination unit 502 may obtain the size of the handwriting through the shooting device, determine the preset angle according to the size of the handwriting, and determine whether the target angle is larger than the preset angle after obtaining the target angle formed between the top edge of the handwriting and the bottom edge of the contact desktop of the electronic device through the shooting device. By implementing the embodiment, the preset angle can be adjusted according to different sizes of the handwritten book, so that the position adjustment of the handwritten book is more accurate.
A first output unit 503, configured to output a first voice prompt message when the determination result of the first determining unit 502 is yes, where the first voice prompt message is used to prompt the user to adjust the placement position of the script so that the target angle is adjusted to be less than or equal to a preset angle; when the target angle is adjusted to be smaller than or equal to the preset angle, the writing content on the handwriting book is completely shot by the camera equipment.
It can be seen that, with the electronic device described in fig. 5, a target angle formed between the top edge of the handwritten book and the bottom edge of the contact desktop of the electronic device is obtained through the camera device on the electronic device, and if the target angle is smaller than or equal to a preset angle, the shooting effect will not be affected by the position of the handwritten book; if this target angle is greater than and predetermines the angle, because the position deviation of this script greatly can influence the shooting effect this moment, so output voice prompt information is used for promoting the user to adjust the locating place of this script of handwriting for the target angle is adjusted to being less than or equal to and predetermines the angle, lets the script of handwriting put in camera device's shooting range, is favorable to shooing complete written content, promotes the effect that the dictation detected.
EXAMPLE five
Referring to fig. 6, fig. 6 is a schematic structural diagram of another electronic device according to an embodiment of the disclosure. As shown in fig. 6, the electronic device shown in fig. 6 is optimized by the electronic device shown in fig. 5. Compared to the electronic device shown in fig. 5, the electronic device shown in fig. 6 may further include:
a distance acquisition unit 504 configured to acquire, by the image pickup apparatus, a target distance between the center of the top edge of the handwritten book and the center of the bottom edge of the electronic apparatus contacting the desktop when the determination result of the first determination unit 502 is negative;
a second judgment unit 505, configured to judge whether the target distance is greater than the specified distance; the specified distance is calculated by a target angle, a preset angle and a preset distance.
In the embodiment of the present invention, the preset distance a is a distance between the bottom edge of the handwritten book and the edge of the shooting range of the image capturing apparatus when the top edge of the handwritten book is attached to the bottom edge of the contact desktop of the electronic apparatus, and if the target angle is B and the preset angle is C, the specified distance D is a/cos (C-B).
Specifically, assuming that the specified distance is 3 centimeters, the second determination unit 505 determines whether the target distance between the center of the top edge of the script and the center of the bottom edge of the electronic device contact desktop is greater than 3 centimeters, and if the target distance is greater than 3 centimeters, executes the second output unit 506; if the target distance is less than or equal to 3 cm, the process is ended. As shown in 203 in fig. 2, an angle between the top edge of the handwriting book and the bottom edge of the electronic device contacting the desktop is smaller than a preset angle, but a distance between the center of the top edge of the handwriting book and the center of the bottom edge of the electronic device contacting the desktop is relatively long and is greater than a specified distance, and at this time, a partial area of the handwriting book is not within a shooting range of the image capturing device, and the writing content on the handwriting book cannot be completely shot by the image capturing device, so that the placement position of the handwriting book needs to be adjusted.
As an alternative embodiment, the second determining unit 505 may obtain the size of the handwriting through the shooting device, determine a preset distance according to the size of the handwriting, and calculate a specified distance according to the preset distance, the target angle, and the preset angle; after a target distance between the center of the top edge of the handwriting book and the center of the bottom edge of the electronic device contact desktop is acquired through the image pickup device, whether the target distance is larger than a specified distance or not is judged. By implementing the embodiment, the preset distance can be adjusted according to different sizes of the handwriting book, so that the position adjustment of the handwriting book is more accurate.
A second output unit 506, configured to output second voice prompt information when the determination result of the second determination unit 505 is yes, where the second voice prompt information is used to prompt the user to adjust the placement position of the script so that the target distance is adjusted to be less than or equal to the specified distance; when the target distance is adjusted to be smaller than or equal to the designated distance, the writing content on the handwriting book is completely shot by the camera equipment.
A degree display unit 507, configured to display the degree of the target angle on a display screen of the electronic device after the angle acquisition unit 501 acquires the target angle formed between the top edge of the handwritten book and the bottom edge of the contact desktop of the electronic device through the image pickup device on the electronic device, and before the first determination unit 502 determines whether the target angle is greater than the preset angle;
the first output unit 503 is further configured to adjust the color of the degrees of the target angle displayed on the display screen to a designated color and output the first voice prompt information when the determination result of the first determination unit 502 is yes.
Specifically, the designated color may be red, and the first output unit 503 adjusts the color of the target angle displayed on the display screen to red, so as to alert the user that an angle formed between the top edge of the handwriting book and the bottom edge of the electronic device contacting the desktop is too large, so that the user can adjust the color in time.
An image capturing unit 508 for capturing a writing image of the user on the music score by the image capturing apparatus after the first voice guidance information is output by the first output unit 503.
In the embodiment of the invention, the music score can be a digital numbered musical notation, 7 basic musical grades in the musical scale are represented by notes 1, 2, 3, 4, 5, 6 and 7, the reading is do, re, mi, fa, sol, la and si, and the rest is represented by 0. The writing image of the user on the music score captured by the image capturing unit 508 through the image capturing apparatus may be one or more of the notes 1, 2, 3, 4, 5, 6, 7, and may be repeatable. When the voice played by the electronic equipment corresponds to a note, the note in the written image can be one; when the voice played by the electronic device corresponds to a plurality of notes or a short song, the number of notes in the written image can be multiple.
A content recognizing unit 509 for recognizing the written content of the user on the music score from the written image.
In the embodiment of the present invention, the content recognition unit 509 recognizes the written content of the user on the music score from the written image, that is, recognizes the musical notes written by the user on the music score.
A dictation detection unit 510, configured to detect writing content according to dictation content played by the electronic device, and obtain a dictation detection result; wherein, the dictation content is a plurality of musical notes;
a result output unit 511 for outputting the dictation detection result.
The dictation detection unit 510 detects the written content according to the dictation content played by the electronic device, and the manner of obtaining the dictation detection result is specifically as follows:
acquiring writing information of a user on a music score recorded by a camera device; the writing information comprises a writing sequence and a writing note interval; dividing the written content according to the written information and the number of notes included in the dictation content to obtain a plurality of notes; and detecting the plurality of notes according to the notes in the dictation content to obtain a dictation detection result.
In the embodiment of the present invention, the dictation detection unit 510 may segment the notes included in the written content according to the writing sequence of the notes, the writing note interval, and the number of notes included in the dictation content to obtain a plurality of notes, so that the notes in the dictation content correspond to the notes in the written content one-to-one, thereby avoiding confusion of the non-corresponding notes during detection, and reducing the error rate during detection.
In the embodiment of the present invention, the dictation detection unit 510 detects each note of the segmented notes included in the written content by using each note of the dictated content according to the corresponding relationship of each segmented note, so as to obtain a dictation detection structure, thereby improving the accuracy of dictation detection.
Therefore, when the dictation content is a music piece, the unit can be executed to detect the notes included in the writing content of the user on the music score and detect according to the corresponding relation between the dictation content and each note in the writing content, so that the accuracy of dictation detection is improved.
The output display unit 512 is used for outputting and displaying a simulated music keyboard on a display screen of the electronic equipment after the result output unit outputs the dictation detection result, and outputting third voice prompt information; the third voice prompt message is used for prompting the user to play and listen to the writing content on the simulated music keyboard;
and a detection output unit 513, configured to detect a target note clicked on the simulated music keyboard by the user, and output a sound effect corresponding to the target note.
In the embodiment of the invention, the units are executed, the simulated music keyboard is output and displayed on the display screen, so that the user plays the dictation content, the sound effect played by the user is output, the dictation music can be trained firmly, and the user can conveniently check the music level.
As an alternative embodiment, after outputting the dictation detection result, when the dictation detection result indicates that a certain note is wrong, the detection output unit 513 selects a target note group corresponding to a piece of music in the written content including the note, and extracts a correct note group corresponding to the target note group in the dictation content; and playing the sound effect corresponding to the target note group and the correct note group. By implementing the embodiment, the user can compare the sound effect of the wrong note with the sound effect of the correct note, and the music level of the user is further checked.
It can be seen that, with the electronic device described in fig. 6, when the handwriting book is not within the shooting range of the camera device, the user is prompted to adjust the placement position of the handwriting book, so that the handwriting book is placed within the shooting range of the camera device, which is beneficial to shooting complete writing content and improving the effect of dictation detection. In addition, when the dictation content is music, notes included in the writing content of the user on the music score can be detected, and the corresponding relation between the dictation content and each note in the writing content is detected, so that the accuracy of dictation detection is improved, a display simulation music keyboard can be output and displayed on a display screen, the user can play the dictation content, the sound effect played by the user is output, the dictation music is subjected to consolidation training, and the user can conveniently check the music level of the user.
EXAMPLE six
Referring to fig. 7, fig. 7 is a schematic structural diagram of another electronic device according to an embodiment of the disclosure. As shown in fig. 7, the electronic device may include:
a memory 701 in which executable program code is stored;
a processor 702 coupled to the memory 701;
the processor 702 calls the executable program code stored in the memory 701 to execute any one of the dictation detection methods of fig. 1, 3 or 4.
The embodiment of the invention discloses a computer-readable storage medium which stores a computer program, wherein the computer program enables a computer to execute any one dictation detection method of fig. 1, fig. 3 or fig. 4.
Embodiments of the present invention also disclose a computer program product, wherein, when the computer program product is run on a computer, the computer is caused to execute part or all of the steps of the method as in the above method embodiments.
It will be understood by those skilled in the art that all or part of the steps in the methods of the embodiments described above may be implemented by hardware instructions of a program, and the program may be stored in a computer-readable storage medium, where the storage medium includes Read-Only Memory (ROM), Random Access Memory (RAM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), One-time Programmable Read-Only Memory (OTPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Compact Disc Read-Only Memory (CD-ROM), or other Memory, such as a magnetic disk, or a combination thereof, A tape memory, or any other medium readable by a computer that can be used to carry or store data.
The dictation detection method and the electronic device disclosed by the embodiment of the invention are described in detail, a specific example is applied in the text to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (12)
1. A dictation detection method is characterized in that an electronic device stands on a desktop, and a handwriting book is horizontally placed on the desktop, and the method comprises the following steps:
acquiring a target angle formed between the top edge of the handwriting book and the bottom edge of the desktop contacted by the electronic equipment through a camera on the electronic equipment;
judging whether the target angle is larger than a preset angle or not;
if so, outputting first voice prompt information, wherein the first voice prompt information is used for prompting a user to adjust the placing position of the handwriting book so that the target angle is adjusted to be smaller than or equal to the preset angle; when the target angle is adjusted to be smaller than or equal to the preset angle, the writing content on the handwriting book is completely shot by the camera equipment.
2. The method of claim 1, wherein after determining that the target angle is less than or equal to a preset angle, the method further comprises:
acquiring a target distance between the center of the top edge of the handwritten book and the center of the bottom edge of the desktop contacted by the electronic equipment through the camera equipment;
judging whether the target distance is greater than a specified distance; the specified distance is obtained by calculating the target angle, the preset angle and a preset distance;
if so, outputting second voice prompt information, wherein the second voice prompt information is used for prompting the user to adjust the placing position of the handwriting book so that the target distance is adjusted to be smaller than or equal to the specified distance; wherein, when the target distance is adjusted to be less than or equal to the specified distance, the writing content on the handwriting book is completely shot by the image pickup device.
3. The method of claim 2, wherein after the obtaining, by the camera device on the electronic device, the target angle formed between the top edge of the script and the bottom edge of the desktop contacted by the electronic device, and before the determining whether the target angle is greater than a preset angle, the method further comprises:
displaying the degree of the target angle on a display screen of the electronic equipment;
and when the target angle is judged to be larger than the preset angle, adjusting the color of the degree of the target angle displayed on the display screen to be a designated color, and executing the step of outputting the first voice prompt message.
4. The method of claim 1, wherein the handwriting is a music score; after the outputting the first voice prompt message, the method further comprises:
shooting a writing image of the user on the music score through the camera device;
recognizing writing contents of the user on the music score from the writing image;
detecting the writing content according to the dictation content played by the electronic equipment to obtain a dictation detection result; wherein, the dictation content is a plurality of musical notes;
and outputting the dictation detection result.
5. The method according to claim 4, wherein the detecting the written content according to the dictation content played by the electronic device to obtain a dictation detection result comprises:
acquiring writing information of the user on the music score recorded by the camera equipment; the writing information comprises a writing sequence and a writing note interval;
segmenting the written content according to the written information and the number of notes included in the dictation content to obtain a plurality of notes;
and detecting the plurality of notes according to the notes in the dictation content to obtain a dictation detection result.
6. The method of claim 5, wherein after outputting the dictation detection result, the method further comprises:
outputting and displaying a simulated music keyboard on a display screen of the electronic equipment, and outputting third voice prompt information; the third voice prompt message is used for prompting the user to play the dictation content on the simulated music keyboard;
and detecting a target note clicked on the simulated music keyboard by the user, and outputting a sound effect corresponding to the target note.
7. An electronic device, wherein the electronic device stands on a desktop, and a handwriting book is horizontally placed on the desktop, the electronic device comprising:
the angle acquisition unit is used for acquiring a target angle formed between the top edge of the handwriting book and the bottom edge of the desktop contacted by the electronic equipment through the camera equipment on the electronic equipment;
the first judgment unit is used for judging whether the target angle is larger than a preset angle or not;
a first output unit, configured to output first voice prompt information when a determination result of the first determination unit is yes, where the first voice prompt information is used to prompt a user to adjust a placement position of the handwriting book, so that the target angle is adjusted to be less than or equal to the preset angle; when the target angle is adjusted to be smaller than or equal to the preset angle, the writing content on the handwriting book is completely shot by the camera equipment.
8. The electronic device of claim 7, further comprising:
a distance obtaining unit, configured to obtain, by the image pickup apparatus, a target distance between a center of a top edge of the handwritten book and a center of a bottom edge of the electronic apparatus that contacts the desktop when the determination result of the first determining unit is negative;
a second judgment unit, configured to judge whether the target distance is greater than a specified distance; the specified distance is obtained by calculating the target angle, the preset angle and a preset distance;
a second output unit, configured to output second voice prompt information when a determination result of the second determination unit is yes, where the second voice prompt information is used to prompt the user to adjust a placement position of the script, so that the target distance is adjusted to be less than or equal to the specified distance; wherein, when the target distance is adjusted to be less than or equal to the specified distance, the writing content on the handwriting book is completely shot by the image pickup device.
9. The electronic device of claim 8, further comprising:
the degree display unit is used for displaying the degree of the target angle on a display screen of the electronic equipment after the angle acquisition unit acquires the target angle formed between the top edge of the handwritten book and the bottom edge of the desktop contacted by the electronic equipment through the camera equipment on the electronic equipment and before the first judgment unit judges whether the target angle is larger than a preset angle;
and the first output unit is further used for adjusting the color of the degree of the target angle displayed on the display screen to a specified color and outputting first voice prompt information when the judgment result of the first judgment unit is yes.
10. The electronic device of claim 7, wherein the handwriting is a music score; the electronic device further includes:
an image shooting unit, configured to shoot a writing image of the user on the music score through the image capturing apparatus after the first output unit outputs the first voice prompt information;
a content recognition unit configured to recognize, from the written image, written content of the user on the music score;
the dictation detection unit is used for detecting the writing content according to the dictation content played by the electronic equipment to obtain a dictation detection result; wherein, the dictation content is a plurality of musical notes;
and the result output unit is used for outputting the dictation detection result.
11. The electronic device according to claim 10, wherein the dictation detection unit comprises:
an acquisition subunit, configured to acquire writing information of the user on the music score recorded by the imaging apparatus; the writing information comprises a writing sequence and a writing note interval;
the segmentation subunit is used for segmenting the written content according to the written information and the number of notes included in the dictation content to obtain a plurality of notes;
and the detecting subunit is used for detecting the plurality of notes according to the notes in the dictation content to obtain a dictation detection result.
12. The electronic device of claim 11, further comprising:
the output display unit is used for outputting and displaying a simulated music keyboard on a display screen of the electronic equipment and outputting third voice prompt information after the result output unit outputs the dictation detection result; the third voice prompt message is used for prompting the user to play the dictation content on the simulated music keyboard;
and the detection output unit is used for detecting a target note clicked on the simulated music keyboard by the user and outputting a sound effect corresponding to the target note.
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