CN111124534A - Intelligent eye protection computer - Google Patents
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- CN111124534A CN111124534A CN201911236294.7A CN201911236294A CN111124534A CN 111124534 A CN111124534 A CN 111124534A CN 201911236294 A CN201911236294 A CN 201911236294A CN 111124534 A CN111124534 A CN 111124534A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
- G06F9/44505—Configuring for program initiating, e.g. using registry, configuration files
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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
- G06V40/18—Eye characteristics, e.g. of the iris
- G06V40/193—Preprocessing; Feature extraction
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
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Abstract
The invention discloses an intelligent eye protection computer, which belongs to the field of computers and comprises a display screen, a processor, a camera, a light sensor and a power supply, wherein the processor is electrically connected with the camera and the display screen respectively; the light sensor is used for acquiring light source data of the surrounding environment and transmitting the light source data to the processor; the camera is used for acquiring a face image or a video and transmitting the face image or the video to the processor; the processor automatically adjusts the brightness value and the color temperature value of the display screen according to the light source data of the surrounding environment; the system is also used for identifying eye characteristic values in the face image or the video according to a face detection and face identification algorithm, calculating eye fatigue degree according to the eye characteristic values, and automatically adjusting the brightness value and the color temperature value of the display screen according to the eye fatigue degree. The invention effectively solves the problem of eye fatigue caused by using a computer at night or under the condition of dark light, and reduces the damage of light emitted by the backlight source to the eyes of a user.
Description
Technical Field
The invention relates to the field of computers, in particular to an intelligent eye protection computer.
Background
People receive radiation from computers every day when using the computers. However, in reality, the radiation of the computer, more from the back of the display screen, and the brightness on the display screen can cause damage to the vision. The existing computer eye protection methods mostly realize eye protection by sticking a film or filtering a film on a display screen or automatically adjusting parameters by a computer. For example, chinese patent publication No. CN102681824A discloses an eye protection method and program for a computer, where the computer program monitors the time of a user using the computer, and when the preset time is exceeded, a pop-up window prompts the user to protect the eyes, and after three times of prompting, the screen is closed, so as to force the user to rest the eyes. For example, chinese patent publication No. CN103677135A discloses a computer eye protection device, which mainly comprises an eye protection device and computer software, wherein the eye protection device is installed on the top of a computer monitor, and a control system, an infrared distance measuring device and a bluetooth receiver are arranged in the device. Infrared ranging is used to measure the distance between a computer monitor and a computer user. The Bluetooth receiver is used for being connected with a computer. The control system is used for controlling software of the computer terminal. When the distance between the computer user and the display is less than 50cm, the display screen can become fuzzy, and the computer user is reminded to increase the use distance. When the user is at a distance greater than or equal to 50cm from the display, the display screen becomes normal. The above patent does not detect the eye fatigue degree of the user, and the eye protection effect is not targeted.
Disclosure of Invention
The invention provides an intelligent eye protection computer, which solves the problems that the eye fatigue degree of a user is not detected and the eye protection effect is not targeted in the prior art.
The technical scheme of the invention is realized as follows:
an intelligent eye protection computer comprises a display screen, a processor and a camera, wherein the processor is respectively electrically connected with the camera and the display screen;
the light sensor is used for acquiring light source data of the surrounding environment and transmitting the light source data to the processor; the camera is used for acquiring a face image or a video and transmitting the face image or the video to the processor; the processor automatically adjusts the brightness value and the color temperature value of the display screen according to the light source data of the surrounding environment; the system is also used for identifying eye characteristic values in the face image or the video according to a face detection and face identification algorithm, calculating eye fatigue degree according to the eye characteristic values, and automatically adjusting the brightness value and the color temperature value of the display screen according to the eye fatigue degree.
As a preferred embodiment of the present invention, the processor automatically adjusts the brightness value and the color temperature value of the display screen according to the light source data of the surrounding environment; specifically, if the brightness value of the surrounding environment exceeds a set highest threshold, the processor automatically increases the brightness value of the display screen, if the brightness value of the surrounding environment is lower than a set lowest threshold, the processor automatically decreases the brightness value of the display screen, and if the light source data of the surrounding environment judges that the current time is night or the working time exceeds a set time, the processor automatically increases the warm light value of the display screen and decreases the cold light value of the display screen.
As a preferred embodiment of the present invention, the processor is further configured to obtain the longitude and latitude information of the work place, the current season, and the real-time, automatically adjust the brightness value and the color temperature value of the display screen, derive the illumination duration range and the illumination intensity range of the location where the display screen is located in the daytime according to the longitude and latitude information of the work place and the current season, derive the current work scene from the real-time, automatically increase or decrease the brightness value of the display screen if the work scene is daytime, and automatically increase the warm light value of the display screen and decrease the cold light value of the display screen if the work scene is night.
As a preferred embodiment of the present invention, the processor identifies an eye feature value in a face image or a video according to a face detection and face recognition algorithm, and calculates the eye fatigue degree according to the eye feature value, specifically including
Let six feature points displayed clockwise by eyes be P1, P2, P3, P4, P5 and P6 respectively, and the formula of the eye aspect ratio is obtained as
P1, P2, P3, P4, P5, P6 correspond to feature points P1, P2, P3, P4, P5, P6 at 2D facial landmark positions;
if the value of the aspect ratio of the eyes is smaller than a set threshold value, determining that the eyes blink once; and detecting the times of eye closure within set time or the value curve of the eye aspect ratio within the set time, and carrying out quantitative analysis on the eye fatigue degree.
As a preferred embodiment of the present invention, the quantitative analysis of the eye fatigue degree specifically includes that the absolute value of the difference between the aspect ratio of two eyes in the current frame and the previous frame is greater than 0.2, and the eye fatigue degree is considered to be fatigue; counting if the aspect ratio of the two eyes of the current frame is lower than a blinking threshold value, and if the counting reaches a sufficient number, determining that the eyes are closed; if the number of eye closures exceeds 50, the user is considered to be asleep.
As a preferred embodiment of the present invention, the processor identifies an eye feature value in a face image or a video according to a face detection and face recognition algorithm, and calculates the eye fatigue degree according to the eye feature value, specifically including
The six feature points displayed clockwise by the eyes are respectively P1, P2, P3, P4, P5 and P6, the length/width value of the eyes is obtained, if the length/width value is larger than a set threshold value, the eyes are judged to be blinked once, the number of times of eye closure within set time or the value curve of the aspect ratio of the eyes within the set time is detected, and the degree of eye fatigue is quantitatively analyzed.
As a preferred embodiment of the present invention, the quantitative analysis of the eye fatigue degree specifically includes that the absolute value of the difference between the length/width values of the two eyes of the current frame and the previous frame is greater than 0.2, and the eye fatigue degree is considered to be fatigue; counting if the length/width values of the two eyes of the current frame are higher than a blinking threshold value, and if the counting reaches a sufficient number, determining that the eyes are closed; if the number of eye closures exceeds 50, the user is considered to be asleep.
The invention has the beneficial effects that: the brightness value and the color temperature value of the display screen are automatically adjusted according to the brightness and darkness of the light of the surrounding environment, the eye fatigue can be analyzed according to the eye using time length recorded in real time, the problem of eye fatigue caused by using a computer at night or under the condition of dark light is effectively solved, and the damage of the light emitted by a backlight source to the eyes of a user is reduced.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic block diagram of an embodiment of an intelligent eye-protecting computer according to the present invention;
fig. 2 is a schematic view of eye aspect ratios for open eyes and blinking eyes.
In the figure, 1-display screen; 2-a processor; 3-a camera; 4-light sensor.
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.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1-2, the invention provides an intelligent eye-protecting computer, which comprises a display screen 1, a processor 2, a camera 3, a light sensor 4 and a light sensor 4, wherein the processor 2 is electrically connected with the camera 3 and the display screen 1 respectively; the camera 3 may be integrated in the front end of the display screen 1, or may be independent of the display screen 1. The computer in the application can be a notebook computer or a desktop computer, and in the actual operation process, the corresponding model, parameters and set threshold values are trained according to the angle difference between the eyes of the user and the camera 3.
The light sensor 4 is used for acquiring light source data of the surrounding environment and transmitting the light source data to the processor 2; the camera 3 is used for acquiring a face image or a video and transmitting the face image or the video to the processor 2; the processor 2 automatically adjusts the brightness value and the color temperature value of the display screen 1 according to the light source data of the surrounding environment; the system is also used for identifying eye characteristic values in the face image or the video according to a face detection and face identification algorithm, calculating eye fatigue degree according to the eye characteristic values, and automatically adjusting the brightness value and the color temperature value of the display screen 1 according to the eye fatigue degree. The processor 2 analyzes the eye fatigue degree according to the eye use time length recorded in real time, so as to effectively solve the problem of eye fatigue caused by using a computer at night or under the condition of dark light and reduce the damage of light emitted by the backlight source to the eyes of a user. Specifically, the face detection and face recognition algorithm of the SDK is utilized, and the method is realized by carrying out a fine algorithm and a data modeling method according to the eye duration; the dlib library is a very classical open source library for image processing, and the shape _ predictor _68_ face _ landworks. dat is a dat model library for detecting 68 key points of a human face, and the use of the model library can be used for conveniently detecting the human face and carrying out simple application.
The light sensor 4 is composed of a photosensitive element, can sense the ambient light condition, and automatically adjusts the backlight brightness of the display through the processing chip, thereby being beneficial to providing soft pictures for the display. The light sensor 4 is also helpful for energy conservation and emission reduction. The power consumption of the liquid crystal screen is a big head, and the working time of the battery can be prolonged to the maximum extent by adopting the ambient light sensor. The light sensors 4 on part of the computers can also control the backlight brightness of the light-emitting keyboard, so that the computer is convenient and the endurance can be improved.
As a preferred embodiment of the present invention, the processor 2 automatically adjusts the brightness value and the color temperature value of the display screen 1 according to the light source data of the surrounding environment; specifically, if the brightness value of the surrounding environment exceeds a set maximum threshold, the processor 2 automatically increases the brightness value of the display screen 1, if the brightness value of the surrounding environment is lower than a set minimum threshold, the processor 2 automatically decreases the brightness value of the display screen 1, and if the light source data of the surrounding environment determines that the current time is night or the working time exceeds a set time, the processor 2 automatically increases the warm light value of the display screen 1 and decreases the cold light value of the display screen 1. The processor 2 realizes an automatic dimming function and a night mode, and when the ambient light becomes bright/dark, the screen automatically turns bright/dark along with the ambient light. The color temperature of light has influence on the vision, emotion and sleep of people, cold light makes people nervous and more spiritual, and warm light makes people relaxed. When people see cold light for a long time at night, eyes can feel fatigue easily, so that the color temperature also needs to be adjusted according to scenes and time, and the damage of the cold light is reduced.
As a preferred embodiment of the present invention, the processor 2 is further configured to obtain longitude and latitude information of a work place, a current season, and a real-time, automatically adjust a brightness value and a color temperature value of the display screen 1, derive a daytime illumination duration range and an illumination intensity range of a place where the display screen 1 is located according to the longitude and latitude information of the work place and the current season, derive a current work scene from the real-time, automatically increase or decrease the brightness value of the display screen 1 if the work scene is daytime, and automatically increase a warm light value of the display screen 1 and decrease a cold light value of the display screen 1 if the work scene is night.
As a preferred embodiment of the present invention, the processor 2 identifies an eye feature value in a face image or a video according to a face detection and face recognition algorithm, and calculates an eye fatigue degree according to the eye feature value, which specifically includes
Let six feature points displayed clockwise by eyes be P1, P2, P3, P4, P5 and P6 respectively, and the formula of the eye aspect ratio is obtained as
P1, P2, P3, P4, P5, P6 correspond to feature points P1, P2, P3, P4, P5, P6 at 2D facial landmark positions; for an eye, 6 points may be used to represent the aspect ratio greater than 0 when the eye is open and a ratio close to 0 when the eye is closed or nearly closed. There should also be a threshold for opening and closing the eyes, which may be set to 0.2, or less relaxed to 0.3.
If the value of the aspect ratio of the eyes is smaller than a set threshold value, determining that the eyes blink once; and detecting the times of eye closure within set time or the value curve of the eye aspect ratio within the set time, and carrying out quantitative analysis on the eye fatigue degree. The quantitative analysis of the eye fatigue degree specifically comprises that the absolute value of the difference between the aspect ratio of two eyes of the current frame and the previous frame is more than 0.2 (under the condition that the eyes look up the camera 3 horizontally), the eyes are considered to be fatigue; counting if the aspect ratio of the two eyes of the current frame is lower than a blinking threshold value, and if the counting reaches a sufficient number, determining that the eyes are closed; if the number of eye closures exceeds 50, the user is considered to be asleep.
As a preferred embodiment of the present invention, the processor 2 identifies an eye feature value in a face image or a video according to a face detection and face recognition algorithm, and calculates an eye fatigue degree according to the eye feature value, which specifically includes
The six feature points displayed clockwise by the eyes are respectively P1, P2, P3, P4, P5 and P6, the length/width value of the eyes is obtained, if the length/width value is larger than a set threshold value, the eyes are judged to be blinked once, the number of times of eye closure within set time or the value curve of the aspect ratio of the eyes within the set time is detected, and the degree of eye fatigue is quantitatively analyzed. The quantitative analysis of the eye fatigue degree specifically comprises that the absolute value of the difference between the length/width values of the two eyes of the current frame and the previous frame is more than 0.2 (under the condition that the eyes look up the camera 3 horizontally), the eyes are considered to be fatigue; counting if the length/width values of the two eyes of the current frame are higher than a blinking threshold value, and if the counting reaches a sufficient number, determining that the eyes are closed; if the number of eye closures exceeds 50, the user is considered to be asleep.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides an intelligence eyeshield computer, includes display screen, treater and camera, the treater respectively with camera and display screen electric connection, its characterized in that: the system also comprises a light sensor which is electrically connected with the processor;
the light sensor is used for acquiring light source data of the surrounding environment and transmitting the light source data to the processor; the camera is used for acquiring a face image or a video and transmitting the face image or the video to the processor; the processor automatically adjusts the brightness value and the color temperature value of the display screen according to the light source data of the surrounding environment; the system is also used for identifying eye characteristic values in the face image or the video according to a face detection and face identification algorithm, calculating eye fatigue degree according to the eye characteristic values, and automatically adjusting the brightness value and the color temperature value of the display screen according to the eye fatigue degree.
2. The intelligent eye-protecting computer of claim 1, wherein: the processor automatically adjusts the brightness value and the color temperature value of the display screen according to the light source data of the surrounding environment; specifically, if the brightness value of the surrounding environment exceeds a set highest threshold, the processor automatically increases the brightness value of the display screen, if the brightness value of the surrounding environment is lower than a set lowest threshold, the processor automatically decreases the brightness value of the display screen, and if the light source data of the surrounding environment judges that the current time is night or the working time exceeds a set time, the processor automatically increases the warm light value of the display screen and decreases the cold light value of the display screen.
3. An intelligent eye-protecting computer according to claim 1 or 2, wherein: the processor is further used for obtaining longitude and latitude information of a working place, automatically adjusting the brightness value and the color temperature value of the display screen in real time, deducing the day illumination time length range and the illumination intensity range of the place where the display screen is located according to the longitude and latitude information of the working place and the current season, deducing the current working scene according to the real time, automatically increasing or decreasing the brightness value of the display screen if the working scene is day, and automatically increasing the warm light value and decreasing the cold light value of the display screen if the working scene is night.
4. The intelligent eye-protecting computer of claim 1, wherein: the processor identifies eye characteristic values in the face image or the video according to a face detection and face identification algorithm, and calculates eye fatigue degree according to the eye characteristic values, and the method specifically comprises the following steps of
Let six feature points displayed clockwise by eyes be P1, P2, P3, P4, P5 and P6 respectively, and the formula of the eye aspect ratio is obtained as
P1, P2, P3, P4, P5, P6 correspond to feature points P1, P2, P3, P4, P5, P6 at 2D facial landmark positions;
if the value of the aspect ratio of the eyes is smaller than a set threshold value, determining that the eyes blink once; and detecting the times of eye closure within set time or the value curve of the eye aspect ratio within the set time, and carrying out quantitative analysis on the eye fatigue degree.
5. The intelligent eye-protecting computer of claim 4, wherein: the quantitative analysis of the eye fatigue degree specifically comprises that the absolute value of the difference between the aspect ratio of two eyes of the current frame and the previous frame is more than 0.2, and the eye fatigue degree is considered to be fatigue; counting if the aspect ratio of the two eyes of the current frame is lower than a blinking threshold value, and if the counting reaches a sufficient number, determining that the eyes are closed; if the number of eye closures exceeds 50, the user is considered to be asleep.
6. The intelligent eye-protecting computer of claim 1, wherein: the processor identifies eye characteristic values in the face image or the video according to a face detection and face identification algorithm, and calculates eye fatigue degree according to the eye characteristic values, and the method specifically comprises the following steps of
The six feature points displayed clockwise by the eyes are respectively P1, P2, P3, P4, P5 and P6, the length/width value of the eyes is obtained, if the length/width value is larger than a set threshold value, the eyes are judged to be blinked once, the number of times of eye closure within set time or the value curve of the aspect ratio of the eyes within the set time is detected, and the degree of eye fatigue is quantitatively analyzed.
7. The intelligent eye-protecting computer of claim 6, wherein: the quantitative analysis of the eye fatigue degree specifically comprises that the absolute value of the difference between the length/width values of the two eyes of the current frame and the previous frame is more than 0.2, and the eye fatigue degree is considered to be fatigue; counting if the length/width values of the two eyes of the current frame are higher than a blinking threshold value, and if the counting reaches a sufficient number, determining that the eyes are closed; if the number of eye closures exceeds 50, the user is considered to be asleep.
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| CN117289889B (en) * | 2023-11-24 | 2024-02-23 | 深圳市凯达高科数码有限公司 | Intelligent eye protection-based tablet personal computer brightness adjusting method and system |
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