CN107133593A - A kind of child's mood acquisition methods and system - Google Patents
A kind of child's mood acquisition methods and system Download PDFInfo
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- CN107133593A CN107133593A CN201710316971.0A CN201710316971A CN107133593A CN 107133593 A CN107133593 A CN 107133593A CN 201710316971 A CN201710316971 A CN 201710316971A CN 107133593 A CN107133593 A CN 107133593A
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- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/174—Facial expression recognition
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Abstract
The invention discloses a kind of child's mood acquisition methods and system, this method includes：Gather the facial image of child；Face location, positioning eyebrow key point, human eye key point and lip key point are detected in facial image；Eyebrow feature is obtained according to eyebrow key point, human eye feature is obtained according to human eye key point, lip feature is obtained according to lip key point；The mood of child is determined by eyebrow feature, human eye feature and lip feature.This method realizes the mood for obtaining child, is easy to the management of child's mood.
Description
Technical field
The present invention relates to mood analysis technical field, more particularly to a kind of child's mood acquisition methods and system.
Background technology
At present, social concern increasingly increases, and causes some " missings " in terms of social mentality, what part population was shown
Psychological problems also become clear day by day and seriously.When the psychology of people goes wrong, performance is more significantly the mood of people.Feelings
Thread, is to feel and with idea, physiological status and the psychological condition felt and come, while also instinct is delivered to limbs and face
Portion, shows corresponding facial characteristics change.And the accumulation of negative feeling can then have a strong impact on the work of people, life, or even people
There is selection to terminate the life of oneself.Therefore it is external substantially mainly for the mood and action behavior of people etc. in existing psychological research
Performance studied, and it is more tend to adult, crowd's restorative phychology such issues that to help.
The method of current mood analysis is mainly for this colony of being grown up, not specifically designed for the analysis of child's emotional change
Method, it is impossible to obtain the mood of child, have ignored the education to child's mood and management.
The content of the invention
It is an object of the invention to provide a kind of child's mood acquisition methods and system, to realize the mood for obtaining child, just
In the management of child's mood.
In order to solve the above technical problems, the present invention provides a kind of child's mood acquisition methods, including：
Gather the facial image of child；
Face location, positioning eyebrow key point, human eye key point and lip key point are detected in facial image；
Eyebrow feature is obtained according to eyebrow key point, human eye feature is obtained according to human eye key point, according to lip key point
Obtain lip feature；
The mood of child is determined by eyebrow feature, human eye feature and lip feature.
It is preferred that, face location is detected in facial image, eyebrow key point, human eye key point and lip key point is positioned,
Including：
Face location is detected in facial image, is closed in face location using track algorithm positioning eyebrow key point, human eye
Key point and lip key point.
It is preferred that, it is described to obtain eyebrow feature according to eyebrow key point, obtain human eye feature, foundation according to human eye key point
Lip key point obtains lip feature, including：
The curvature and distance of left and right eyebrow are calculated using eyebrow key point, the song of upper lower eyelid is calculated using human eye key point
Rate and interior tail of the eye angle, the curvature and corners of the mouth angle of upper lower lip are calculated using lip key point.
It is preferred that, the mood of the child includes glad, sad, frightened and indignation.
The present invention also provides a kind of child's mood and obtains system, for realizing the above method, including：
Acquisition module, the facial image for gathering child；
Locating module, for detecting face location in facial image, positioning eyebrow key point, human eye key point and lip are closed
Key point；
Characteristic module, for obtaining eyebrow feature according to eyebrow key point, human eye feature is obtained according to human eye key point, according to
Lip feature is obtained according to lip key point；
Mood module, the mood for determining child by eyebrow feature, human eye feature and lip feature.
It is preferred that, the locating module specifically for facial image detect face location, in face location utilize with
Track algorithm positioning eyebrow key point, human eye key point and lip key point.
It is preferred that, the characteristic module is specifically for curvature and distance using eyebrow key point calculating left and right eyebrow, profit
The curvature and interior tail of the eye angle of upper lower eyelid are calculated with human eye key point, the curvature of upper lower lip is calculated using lip key point
With corners of the mouth angle.
It is preferred that, the mood of the child includes glad, sad, frightened and indignation.
A kind of child's mood acquisition methods provided by the present invention and system, gather the facial image of child；In face figure
As detection face location, positioning eyebrow key point, human eye key point and lip key point；It is special that eyebrow is obtained according to eyebrow key point
Levy, human eye feature is obtained according to human eye key point, lip feature is obtained according to lip key point；It is special by eyebrow feature, human eye
Lip feature of seeking peace determines the mood of child.It can be seen that, eyebrow key point, human eye key point and lip key point are positioned,
Eyebrow feature, human eye feature, lip feature are obtained according to these key points, passes through eyebrow feature, human eye feature and lip feature
To judge the mood of child, the mood for obtaining child is so realized, is easy to the management of child's mood.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of flow chart of child's mood acquisition methods provided by the present invention；
Fig. 2 is children's concentration analysis process figure；
Fig. 3 obtains the structural representation of system for a kind of child's mood provided by the present invention.
Embodiment
The core of the present invention is to provide a kind of child's mood acquisition methods and system, to realize the mood for obtaining child, just
In the management of child's mood.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 is refer to, Fig. 1 is a kind of flow chart of child's mood acquisition methods provided by the present invention, and this method includes：
S11：Gather the facial image of child；
S12：Face location, positioning eyebrow key point, human eye key point and lip key point are detected in facial image；
S13：Eyebrow feature is obtained according to eyebrow key point, human eye feature is obtained according to human eye key point, is closed according to lip
Key point obtains lip feature；
S14：The mood of child is determined by eyebrow feature, human eye feature and lip feature.
It can be seen that, in this method, eyebrow key point, human eye key point and lip key point are positioned, according to these passes
Key point obtains eyebrow feature, human eye feature, lip feature, and child is judged by eyebrow feature, human eye feature and lip feature
Mood, so realize obtain child mood, be easy to the management of child's mood.
Based on the above method, further, step S12 process is specifically included：Face location is detected in facial image,
Track algorithm positioning eyebrow key point, human eye key point and lip key point are utilized in face location.
Further, step S13 process is specifically included：Using eyebrow key point calculate left and right eyebrow curvature and away from
From calculating the curvature and interior tail of the eye angle of upper lower eyelid using human eye key point, utilize lip key point to calculate upper lower lip
Curvature and corners of the mouth angle.
Wherein, the mood of the child includes glad, sad, frightened and indignation.
Detailed, child is substantially at a kind of imitation stage as special colony, the process of study is compared in student, plus
Age it is smaller, ability of language expression is undeveloped, for the impression of heart, tends not to accurately express, but pass through
Shrink back or fierce Emotion expression comes out.And this stage is the important stage of children's character behavior shaping and development.According to children
A series of obvious, inflammable, unstable features that youngster's Emotion expression goes out, the mood just to child since preschool education is closed
Note, analysis and education, by a kind of child's emotional change analysis system positioned based on feature tracking, are found, understood in time
The emotional change of child, and educated and managed, the good emotional characteristics of child is helped with this, promotes the health of child's body and mind
Development.The present invention is used for aided education, helps the children learning mood of oneself good at managing, promotes the sound development of child's body and mind.
Fig. 2 is children's concentration analysis process figure, and based on this method, specific implementation process is as follows：
Step 1：Camera collects facial image；
Step 2：Data processing centre utilize according to the position of Intelligent seat calculate the space geometry of face and camera away from
From scaling filter is realized in design；
Wherein, according to the face length L of 3-6 Sui children, the dimension calculation of wave filter is：
Wherein, f is the focal length of camera, and D is distance of the camera to child position；
Step 3：When the first two field picture is reached, the feature templates of face are imported, and utilize scale filter and the side of cascade
Formula searches the position that face occurs in video image；
Step 4：The face location detected is preserved, and regard the integral position information of face as the initial of crucial point location
Change information；
Step 5：When next two field picture is reached, face tracking is completed using correlation filtering；
Step 6：According to the face location of positioning, aid in detecting the position of face using track algorithm and position key point；
Step 7：Its curvature and distance are calculated using the eyebrow (each five key points in left and right) in face location and key point；
Step 8：According to human eye key point position, the curvature and interior tail of the eye angle of lower eyelid in calculating；
Step 9：Put according to people's lip key point, the curvature of lower lip and corners of the mouth angle in calculating；
The above-mentioned key point on eyebrow, human eye and lip, is at least 3, generally 5, certainly The more the better.Algorithm
Using RANSAC mode, the main positions information of child study will be estimated, and algorithm utilizes Cascade algorithms auxiliary detection face
Position and position eyebrow, the key point of eyes and lip；
Wherein, algorithm is respectively completed conic fitting according to the key point of eyebrow, upper lower eyelid and upper lower lip：
Wherein, pyFor the image ordinate of key point, pxFor the image abscissa of key point, the curve is by least square method
Fitting is completed, the curvature on conic section summit just represents the curvature of curve of corresponding eyebrow, upper lower eyelid and upper lower lip；
The distance of eyebrow is obtained by calculating the distance of key point position；
Main three key points near it of the angle of the interior tail of the eye and the corners of the mouth calculate gained, if the position of its three points
For A (a, b), B (c, d), C (e, f), vectorial AB=(c-a, d-b), vectorial BC=(e-c, f-d) then cos ABC==(c-a,
d-b)*(e-c,f-d)/(c-a,d-b)|*|(e-c,f-d)|；
Step 10：As shown in table 1 in summary the happiness of tagsort child, sadness, fear, fear four kinds of moods, table 1
For the facial characteristics of four kinds of moods of child；
Table 1
Step 11：To improve the robustness of algorithm, every ten frame of algorithm judges the mood of a child；
Step 12：Algorithm utilizes change severe degree of the face key point in course, is attended class mood point to complete student
Class.
From different place in the prior art：Due to being using exchange, observation and the guiding of subjectivity in the prior art, judging
To carry out the research of emotional change, adult is primarily directed to, and the present invention is analyzed using science algorithm, is applied
Specific classroom, teacher teaching PPT is combined with, in combination with desk camera and back-end data processing center parser
Utilize so that teaching process is to be directed to each child, that is, realize man-to-man video acquisition, detection, positioning and analysis.Finally
The conclusion that emotional change more reasonably, more scientific is analyzed is drawn by parser.The present invention final form at any time with
Ground for participate in preschool education everyone provide intelligent informationization clothes.It is auxiliary that the present invention determines that method is applied on child's mood
Classroom instruction is helped, the children learning mood of oneself good at managing is helped, promotes the sound development of child's body and mind.
Child is by the study of single course, and the present invention is showed according to the study content of same day child, classroom, carries out child
Data statistics on the one, summary, obtain the indexs such as curiosity, focus, collaborative, acuity, novelty.According to these indexs profit
The analysis and summary of science are carried out to personality, the mood of child with algorithm.Simultaneously single lesson data index with course other people
Data are compared, and help teacher and parent to be better understood by the personality feature of child, and control to mood, management and to class
Gap in terms of the focus of journey, fitness with regard to certain course or between contemporary.Then obtained according to single course
The indexs such as personal data index and curiosity, focus, collaborative, the acuity of same batch child are compared, analyzed, according to
The personality feature of child is targetedly taught, and helps child to keep positive, good mood, eliminates negative, passive feelings
Thread.So as to promote child's self-development and the growth of personality.
Wherein, filtering be by the operation that specific band frequency is filtered out in signal, be suppress and prevent interference one it is important
Measure.It is the result of a certain random process according to the observation, the probability theory estimated another random process associated therewith
With method.Robustness refers to that control system under the Parameter Perturbation of certain (structure, size), maintains the spy of some other performances
Property, to characterization control system to characteristic or the insensitivity of parameter perturbation.
Fig. 3 is refer to, Fig. 3 obtains the structural representation of system, the system for a kind of child's mood provided by the present invention
For realizing the above method, the system includes：
Acquisition module 101, the facial image for gathering child；
Locating module 102, for detecting face location, positioning eyebrow key point, human eye key point and mouth in facial image
Lip key point；
Characteristic module 103, for obtaining eyebrow feature according to eyebrow key point, obtains human eye special according to human eye key point
Levy, lip feature is obtained according to lip key point；
Mood module 104, the mood for determining child by eyebrow feature, human eye feature and lip feature.
It can be seen that, in the system, eyebrow key point, human eye key point and lip key point are positioned, according to these passes
Key point obtains eyebrow feature, human eye feature, lip feature, and child is judged by eyebrow feature, human eye feature and lip feature
Mood, so realize obtain child mood, be easy to the management of child's mood.
Based on said system, further, locating module in facial image specifically for detecting face location, in face position
Put middle utilization track algorithm positioning eyebrow key point, human eye key point and lip key point.
Further, characteristic module is utilized specifically for curvature and distance using eyebrow key point calculating left and right eyebrow
Human eye key point calculates the curvature and interior tail of the eye angle of upper lower eyelid, using lip key point calculate upper lower lip curvature and
Corners of the mouth angle.
Wherein, the mood of child includes glad, sad, frightened and indignation.
Further, acquisition module is camera, and locating module, characteristic module and mood module are set in data handling
The heart.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.For system disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
A kind of child's mood acquisition methods provided by the present invention and system are described in detail above.Herein should
The principle and embodiment of the present invention are set forth with specific case, the explanation of above example is only intended to help and managed
Solve the method and its core concept of the present invention.It should be pointed out that for those skilled in the art, not departing from
On the premise of the principle of the invention, some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into this hair
In bright scope of the claims.
Claims (8)
1. a kind of child's mood acquisition methods, it is characterised in that including：
Gather the facial image of child；
Face location, positioning eyebrow key point, human eye key point and lip key point are detected in facial image；
Eyebrow feature is obtained according to eyebrow key point, human eye feature is obtained according to human eye key point, is obtained according to lip key point
Lip feature；
The mood of child is determined by eyebrow feature, human eye feature and lip feature.
2. the method as described in claim 1, it is characterised in that detect face location in facial image, positioning eyebrow key point,
Human eye key point and lip key point, including：
Face location is detected in facial image, track algorithm positioning eyebrow key point, human eye key point are utilized in face location
With lip key point.
3. method as claimed in claim 2, it is characterised in that described to obtain eyebrow feature according to eyebrow key point, according to people
Eye key point obtains human eye feature, and lip feature is obtained according to lip key point, including：
The curvature and distance of left and right eyebrow are calculated using eyebrow key point, using human eye key point calculate upper lower eyelid curvature and
Interior tail of the eye angle, the curvature and corners of the mouth angle of upper lower lip are calculated using lip key point.
4. method as claimed in claim 3, it is characterised in that the mood of the child includes glad, sad, frightened and anger
Anger.
5. a kind of child's mood obtains system, it is characterised in that for realizing as described in any one in Claims 1-4
Method, including：
Acquisition module, the facial image for gathering child；
Locating module, for detecting face location in facial image, positioning eyebrow key point, human eye key point and lip are crucial
Point；
Characteristic module, for obtaining eyebrow feature according to eyebrow key point, human eye feature is obtained according to human eye key point, according to mouth
Lip key point obtains lip feature；
Mood module, the mood for determining child by eyebrow feature, human eye feature and lip feature.
6. system as claimed in claim 5, it is characterised in that the locating module in facial image specifically for detecting face
Position, utilizes track algorithm positioning eyebrow key point, human eye key point and lip key point in face location.
7. system as claimed in claim 6, it is characterised in that the characteristic module using eyebrow key point specifically for being calculated
The curvature and distance of left and right eyebrow, the curvature and interior tail of the eye angle of upper lower eyelid are calculated using human eye key point, lip is utilized
Key point calculates the curvature and corners of the mouth angle of upper lower lip.
8. system as claimed in claim 7, it is characterised in that the mood of the child includes glad, sad, frightened and anger
Anger.
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| CN108256499A (en) * | 2018-02-05 | 2018-07-06 | 湖南科乐坊教育科技股份有限公司 | A kind of book assessment information determines method, apparatus and system |
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| CN110363124A (en) * | 2019-07-03 | 2019-10-22 | 广州多益网络股份有限公司 | Rapid expression recognition and application method based on face key points and geometric deformation |
| CN111161035A (en) * | 2019-12-31 | 2020-05-15 | 北京三快在线科技有限公司 | Dish recommendation method and device, server, electronic equipment and storage medium |
| CN111582611A (en) * | 2019-02-18 | 2020-08-25 | 北京入思技术有限公司 | Classroom teaching evaluation method and system based on emotion perception |
| CN112957042A (en) * | 2021-01-29 | 2021-06-15 | 特路（北京）科技有限公司 | Non-contact target emotion recognition method and system |
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Application publication date: 20170905 |