CN109034071A - A kind of pre- myopic-preventing method - Google Patents
A kind of pre- myopic-preventing method Download PDFInfo
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- CN109034071A CN109034071A CN201810849286.9A CN201810849286A CN109034071A CN 109034071 A CN109034071 A CN 109034071A CN 201810849286 A CN201810849286 A CN 201810849286A CN 109034071 A CN109034071 A CN 109034071A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- 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
- G06V40/161—Detection; Localisation; Normalisation
- G06V40/165—Detection; Localisation; Normalisation using facial parts and geometric relationships
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- 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
- G06V40/168—Feature extraction; Face representation
- G06V40/171—Local features and components; Facial parts ; Occluding parts, e.g. glasses; Geometrical relationships
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Geometry (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Image Analysis (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
This application involves technical field of face recognition more particularly to a kind of pre- myopic-preventing methods, comprising the following steps: acquisition user information；User's face photographic intelligence is acquired by camera；Determine user's face photo at a distance from screen；According to preset user security viewing distance, judge whether the eye position of user is in interior in default safety viewing distance range, if it is not, then sending prompt information to user.This method process provided by the invention is easy, improve user experience, and can fast and accurately calculate face to screen distance, and remind never reduce it is incorrect give user's bring negative health effects with eye, for user provide intelligence, human nature service.
Description
Technical field
This application involves technical field of face recognition more particularly to a kind of pre- myopic-preventing methods.
Background technique
With the increasing popularization of smart mobile phone, including the various application programs such as news information, social application, game application not
Disconnected to weed out the old and bring forth the new, the small the small screen of that side of mobile phone has tightly sticked countless people, and the whole world is of all ages regardless of region, generally occurs
It bows race.On bus, on subway, on all size car, in elevator or even streets and lanes, low head is at one kind
Common mode.
But due to staring at mobile phone screen for a long time, number of winks is caused to reduce, ocular surface moisture can evaporate rapidly,
Long will appear xerophthalmia and blood-shot eye illness disease, and eyesight will receive obvious damage.
Summary of the invention
This application provides a kind of pre- myopic-preventing methods, to solve the problems, such as technology.
For this purpose, the present invention provides following technical proposals: a kind of pre- myopic-preventing method, it is characterised in that: including following
Step:
Acquire user information；
User's face photographic intelligence is acquired by camera；
Determine user's face photo at a distance from screen；
According to preset user security viewing distance, judges whether the eye position of user is in and preset safe viewing distance
In in range, if it is not, then sending prompt information to user.
Further, after the step ' determining user's face photo at a distance from screen ' further include:
Determine the resolution ratio of user's face photo；
Determine the relative position of eyes of user and screen；
If eyes of user midpoint is not in the middle part of screen, determine that user not in preset viewing areas, then sends out to user
Send prompting message.
Further, after the step ' determining user's face photo at a distance from screen ' further include: timer is from opening
Machine starts timing, calculates the time that user watches screen, if being more than safe viewing time, sends prompt information to user.
Further, before the step ' acquisition user information ', the safe viewing distance of pre-set user is further comprised the steps of:；
The safe viewing areas of pre-set user；
The safe viewing time of pre-set user.
Further, the type of the prompt information includes alarm, flashing light, blank screen, into screen protection interface or shutdown.
Further, the step ' according to preset user security viewing distance, judges whether the eye position of user is located
In in default safety viewing distance range, if it is not, then sending prompt information to user ' in, judge that the eye position of user is
The no method in default safety viewing distance range the following steps are included:
Image preprocessing reduces input image resolution, completes image enhancement processing；
Feature extraction and positioning, determine the feature of face eyes and nose and positioning, construct face characteristic triangle, calculate
Elemental area；
Image distance modeling, constructs the mathematical model of pixel and distance, determines image distance equation；
Error correction reduces error using multiple measurement and related constraint；
Distance output.
The technical scheme provided by the application includes following advantageous effects: the present invention is acquired in front of screen by camera
User images, analyze to obtain face key feature, and the distance based on this confirmation face off screen curtain by real time picture, accordingly
It is reminded after judgement according to presupposed information.According to user information and the resolution ratio of the combination collected picture of camera, meter
Face is calculated to the distance of screen, process is easy, improves user experience, and can fast and accurately calculate face to screen
Distance, and remind never, reduction is incorrect to give user's bring negative health effects with eye, provides intelligent, human nature for user
Change service.
Specific embodiment
A kind of pre- myopic-preventing method, it is characterised in that: the following steps are included:
Acquire user information；
User's face photographic intelligence is acquired by camera；
Determine user's face photo at a distance from screen；
According to preset user security viewing distance, judges whether the eye position of user is in and preset safe viewing distance
In in range, if it is not, then sending prompt information to user.
One as the present embodiment technical solution improves greatly, the step ' determining user's face photo at a distance from screen '
Later further include:
Determine the resolution ratio of user's face photo；
Determine the relative position of eyes of user and screen；
If eyes of user midpoint is not in the middle part of screen, determine that user not in preset viewing areas, then sends out to user
Send prompting message.
One as the present embodiment technical solution improves greatly, the step ' determining user's face photo at a distance from screen '
Later further include: timer timing since booting calculates the time that user watches screen, if being more than safe viewing time,
Prompt information is sent to user.
One as the present embodiment technical solution improves greatly, before the step ' acquisition user information ', further comprises the steps of:
The safe viewing distance of pre-set user；
The safe viewing areas of pre-set user；
The safe viewing time of pre-set user.
One as the present embodiment technical solution improves greatly, and the type of the prompt information includes alarm, flashing light, blank screen,
Into screen protection interface or shutdown.
One as the present embodiment technical solution improves greatly, and the step ' according to preset user security viewing distance, is sentenced
In whether the eye position of disconnected user is in default safety viewing distance range, if it is not, then sending prompt information to user '
In, judge the method whether eye position of user is in default safety viewing distance range the following steps are included:
Image preprocessing reduces input image resolution, completes image enhancement processing；
Feature extraction and positioning, determine the feature of face eyes and nose and positioning, construct face characteristic triangle, calculate
Elemental area；
Image distance modeling, constructs the mathematical model of pixel and distance, determines image distance equation；
Error correction reduces error using multiple measurement and related constraint；
Distance output.
This method provided by the invention, when measurement, do not need optional equipment, and measurement has preferable precision and has reality
The processing of collected input picture is the image for meeting system requirements, secondly by essence first by image preprocessing by Shi Xing
Simple feature quantity and sample Expansion strategies improve traditional algorithm, can quickly detect simultaneously location feature region, construction feature triangle
Shape (i.e. the triangles of eyes and nose formation).Finally closed using system constraints, camera calibration principle and area mapping
System derives the mathematical relationship of elemental area and man-machine distance, establishes image distance measurement equation, completes range measurement.
The present invention acquires the user images in front of screen by camera, analyzes to obtain the crucial spy of face by real time picture
Sign, and the distance based on this confirmation face off screen curtain, are reminded after judging accordingly according to presupposed information.According to user information
And the resolution ratio of the collected picture of camera is combined, face is calculated to the distance of screen, and process is easy, improves user's body
It tests, and can fast and accurately calculate face to the distance of screen, and remind never, reduce and incorrect is brought with eye to user
Negative health effects, provide intelligent, human nature service for user.
It should be noted that the relational terms of such as " first " and " second " or the like be used merely to an entity or
Operation is distinguished with another entity or operation, and without necessarily requiring or implying between these entities or operation, there are any
This actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive
Property include so that including the article of a series of elements or equipment not only includes those elements, but also including not having
The other element being expressly recited, or further include for elements inherent to such a process, method, article, or device.Do not having
There is the element limited in the case where more limiting by sentence "including a ...", it is not excluded that in the mistake including the element
There is also other identical elements in journey, method, article or equipment.
The above is only the specific embodiment of the application, is made skilled artisans appreciate that or realizing this Shen
Please.Various modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the application.Therefore, the application
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (6)
1. a kind of pre- myopic-preventing method, it is characterised in that: the following steps are included:
Acquire user information；
User's face photographic intelligence is acquired by camera；
Determine user's face photo at a distance from screen；
According to preset user security viewing distance, judge whether the eye position of user is in default safety viewing distance range
It is interior, if it is not, then sending prompt information to user.
2. a kind of pre- myopic-preventing method according to claim 1, which is characterized in that the step ' determines user's face
Photo is at a distance from screen ' after further include:
Determine the resolution ratio of user's face photo；
Determine the relative position of eyes of user and screen；
If eyes of user midpoint is not in the middle part of screen, determine that user not in preset viewing areas, then sends to user and mentions
Awake information.
3. a kind of pre- myopic-preventing method according to claim 1, which is characterized in that the step ' determines user's face
Photo is at a distance from screen ' after further include: timer timing since booting calculates the time that user watches screen, if super
Safe viewing time is crossed, then sends prompt information to user.
4. a kind of pre- myopic-preventing method according to claim 1, it is characterised in that: the step ' acquisition user information '
Before, the safe viewing distance of pre-set user is further comprised the steps of:；
The safe viewing areas of pre-set user；
The safe viewing time of pre-set user.
5. a kind of pre- myopic-preventing method according to claim 1 to 3, which is characterized in that the class of the prompt information
Type includes alarm, flashing light, blank screen, into screen protection interface or shutdown.
6. a kind of pre- myopic-preventing method according to claim 1, it is characterised in that: the step is ' according to preset use
The safe viewing distance in family, judge whether the eye position of user is in default safety viewing distance range in, if it is not, then to
Family sends prompt information ' in, the method for judging whether the eye position of user is in default safety viewing distance range includes
Following steps:
Image preprocessing reduces input image resolution, completes image enhancement processing；
Feature extraction and positioning, determine the feature of face eyes and nose and positioning, construct face characteristic triangle, calculate pixel
Area；
Image distance modeling, constructs the mathematical model of pixel and distance, determines image distance equation；
Error correction reduces error using multiple measurement and related constraint；
Distance output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810849286.9A CN109034071A (en) | 2018-07-28 | 2018-07-28 | A kind of pre- myopic-preventing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810849286.9A CN109034071A (en) | 2018-07-28 | 2018-07-28 | A kind of pre- myopic-preventing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109034071A true CN109034071A (en) | 2018-12-18 |
Family
ID=64647450
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810849286.9A Pending CN109034071A (en) | 2018-07-28 | 2018-07-28 | A kind of pre- myopic-preventing method |
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Citations (5)
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|---|---|---|---|---|
| CN103544930A (en) * | 2013-10-31 | 2014-01-29 | 无敌科技(西安)有限公司 | Hand-held embedded learning method and device capable of protecting eyesight |
| CN104504374A (en) * | 2014-12-19 | 2015-04-08 | 合肥科飞视觉科技有限公司 | Method and system for automatically monitoring distance from human eyes to screen |
| CN105549967A (en) * | 2015-12-09 | 2016-05-04 | 北京用友政务软件有限公司 | Myopia prevention method of intelligent electronic device |
| CN105812578A (en) * | 2016-05-10 | 2016-07-27 | 宁波高科美电子技术有限公司 | Active myopia preventing method of mobile display device |
| CN107369305A (en) * | 2017-08-22 | 2017-11-21 | 中原工学院 | A kind of children's vision protection system and its application method |
-
2018
- 2018-07-28 CN CN201810849286.9A patent/CN109034071A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103544930A (en) * | 2013-10-31 | 2014-01-29 | 无敌科技(西安)有限公司 | Hand-held embedded learning method and device capable of protecting eyesight |
| CN104504374A (en) * | 2014-12-19 | 2015-04-08 | 合肥科飞视觉科技有限公司 | Method and system for automatically monitoring distance from human eyes to screen |
| CN105549967A (en) * | 2015-12-09 | 2016-05-04 | 北京用友政务软件有限公司 | Myopia prevention method of intelligent electronic device |
| CN105812578A (en) * | 2016-05-10 | 2016-07-27 | 宁波高科美电子技术有限公司 | Active myopia preventing method of mobile display device |
| CN107369305A (en) * | 2017-08-22 | 2017-11-21 | 中原工学院 | A kind of children's vision protection system and its application method |
Non-Patent Citations (1)
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| 张帆 等: "《一种基于单目视觉的实时人机测距系统研究》", 《计算机应用研究》 * |
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Application publication date: 20181218 |
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