CN111862899A - Control method and electronic device - Google Patents

Control method and electronic device Download PDF

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Publication number
CN111862899A
CN111862899A CN202010750707.XA CN202010750707A CN111862899A CN 111862899 A CN111862899 A CN 111862899A CN 202010750707 A CN202010750707 A CN 202010750707A CN 111862899 A CN111862899 A CN 111862899A
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China
Prior art keywords
preset
pupil
current user
display screen
eye information
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Chinese (zh)
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王路
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN202010750707.XA priority Critical patent/CN111862899A/en
Publication of CN111862899A publication Critical patent/CN111862899A/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10Intensity circuits
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/18Eye characteristics, e.g. of the iris
    • G06V40/19Sensors therefor
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/18Eye characteristics, e.g. of the iris
    • G06V40/193Preprocessing; Feature extraction
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/18Eye characteristics, e.g. of the iris
    • G06V40/197Matching; Classification
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/06Adjustment of display parameters
    • G09G2320/0626Adjustment of display parameters for control of overall brightness

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  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Computer Hardware Design (AREA)
  • Eye Examination Apparatus (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

The application discloses a control method and electronic equipment. The control method is used for the electronic equipment, and the electronic equipment comprises a display screen and an imaging device. The control method comprises the following steps: controlling an imaging device to acquire an image to obtain eye information of a current user; processing the eye information to judge whether the pupil area of the current user exceeds a preset pupil range, wherein the minimum value of the preset pupil range is a first preset value, and the maximum value of the preset pupil range is a second preset value; after the pupil area is smaller than a first preset value and lasts for a first preset time, controlling the display screen to reduce the display brightness; and controlling the display screen to increase the display brightness after the pupil area is larger than a second preset value and lasts for a second preset time. So, can adjust the display brightness of display screen according to the size of pupil area to make the demand that display brightness more matches user's eyes.

Description

Control method and electronic device
Technical Field
The present disclosure relates to the field of consumer electronics technologies, and in particular, to a control method and an electronic device.
Background
In the related art, the ambient light brightness may be obtained by the ambient light sensor, and then the brightness of the display screen is adjusted according to the ambient light brightness, for example, when the ambient light brightness is higher, the brightness of the display screen is improved, and when the ambient light brightness is lower, the brightness of the display screen is reduced. However, this way of adjustment does not adapt well to the eye requirements of the user, since the sensitivity to brightness varies from user to user.
Disclosure of Invention
The application provides a control method and electronic equipment.
The control method of the embodiment of the application can be used for electronic equipment, the electronic equipment comprises a display screen and an imaging device, and the control method comprises the following steps: controlling the imaging device to acquire an image to obtain eye information of a current user; processing the eye information to judge whether the pupil area of the current user exceeds a preset pupil range, wherein the minimum value of the preset pupil range is a first preset value, and the maximum value of the preset pupil range is a second preset value; after the pupil area is smaller than the first preset value and lasts for a first preset time, controlling the display screen to reduce the display brightness; and controlling the display screen to increase the display brightness after the pupil area is larger than the second preset value and lasts for a second preset time.
The electronic equipment of the embodiment of the application comprises a display screen, an imaging device and a processor, wherein the processor is used for: controlling the imaging device to acquire an image to obtain eye information of a current user; processing the eye information to judge whether the pupil area of the current user exceeds a preset pupil range, wherein the minimum value of the preset pupil range is a first preset value, and the maximum value of the preset pupil range is a second preset value; after the pupil area is smaller than the first preset value and lasts for a first preset time, controlling the display screen to reduce the display brightness; and controlling the display screen to increase the display brightness after the pupil area is larger than the second preset value and lasts for a second preset time.
The control method and the electronic equipment can adjust the display brightness of the display screen according to the size of the pupil area, so that the display brightness can be more matched with the requirements of eyes of a user.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic flow chart of a control method according to an embodiment of the present application;
FIG. 2 is a schematic diagram of an electronic device of an embodiment of the present application;
FIG. 3 is another schematic flow chart diagram of a control method according to an embodiment of the present application;
fig. 4 is a further flowchart of the control method according to the embodiment of the present application.
The main characteristic reference numbers:
an electronic device 100;
the device comprises a processor 10, an imaging device 20, an infrared light source 21, an infrared camera 22 and a display screen 30.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
It should be noted that in the description of the present application, it is to be understood that the terms "thickness", "upper", "lower", "inner" and "outer" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Referring to fig. 1, a control method according to an embodiment of the present application includes:
011, controlling the imaging device to acquire the image to obtain the eye information of the current user;
012, processing the eye information to judge whether the pupil area of the current user exceeds a preset pupil range, where the minimum value of the preset pupil range is a first preset value, and the maximum value of the preset pupil range is a second preset value;
013, after the pupil area is smaller than the first preset value and lasts for the first preset time, controlling the display screen 30 to reduce the display brightness;
014, after the pupil area is larger than the second preset value and lasts for a second preset time, controlling the display screen 30 to increase the display brightness.
Referring to fig. 1 and 2, an electronic device 100 according to an embodiment of the present disclosure includes a display 30, an imaging device 20, and a processor 10. The control method according to the embodiment of the present application may be implemented by electronic device 100 according to the embodiment of the present application, wherein step 011, step 012, step 013, and step 014 may all be implemented by processor 10. That is, the processor 10 may be configured to control the imaging device to acquire an image to obtain eye information of the current user; processing the eye information to judge whether the pupil area of the current user exceeds a preset pupil range, wherein the minimum value of the preset pupil range is a first preset value, and the maximum value of the preset pupil range is a second preset value; after the pupil area is smaller than a first preset value and lasts for a first preset time, controlling the display screen 30 to reduce the display brightness; and controlling the display screen 30 to increase the display brightness after the pupil area is larger than the second preset value and lasts for a second preset time.
It should be noted that the eye information may include data such as an iris center, an iris edge, a pupil edge, and a pupil center, and the pupil area may be calculated according to the data of the pupil edge and the pupil center. The preset pupil range refers to the pupil area range of the user in a normal state, and the preset pupil ranges of different users can be different.
When the brightness of the pupil of the user is high, the pupil area is reduced; in the case of low brightness, the pupil area becomes large. Therefore, after the pupil area of the user is smaller than the first preset value and lasts for the first preset time, it is determined that the brightness of the display screen 30 is higher at this time, and the processor 10 controls the display screen 30 to decrease the display brightness. When the pupil area of the user is greater than the second preset value and lasts for the second preset duration, it is determined that the brightness of the display screen 30 is low at this time, and the processor 10 controls the display screen 30 to increase the display brightness. The setting of the first preset time and the second preset time avoids the screen brightness adjustment caused by the change of the pupil area of the user in a short time due to environment or other factors.
In this way, the control method and the electronic device 100 of the present application can adjust the display brightness of the display screen 30 according to the size of the pupil area, so that the display brightness more matches the requirement of the eyes of the user.
It is understood that the electronic device 100 of the embodiment of the present application includes, but is not limited to, a head-mounted electronic device such as AR glasses, VR glasses, or other electronic devices such as a mobile phone and a tablet computer. Here, the electronic device 100 is exemplified as AR glasses.
Referring to fig. 3, in some embodiments, the control method further includes:
015, processing the eye information to determine whether the current user is registered;
016, when the current user is unregistered, controlling the display screen to display a preset picture, determining a preset pupil range according to the pupil change of the current user, and registering;
017, when the current user is registered, determining a preset pupil range.
In some embodiments, steps 015, 016 and 017 may all be implemented by processor 10, that is, processor 10 may be configured to process eye information to determine whether a current user is already registered; when the current user is unregistered, controlling a display screen to display a preset picture, determining a preset pupil range according to the pupil change of the current user, and registering; when the current user is registered, a preset pupil range is determined.
Specifically, the processor 10 may store the eye information of the user collected by the imaging device 20 in the electronic device 100, and if the processor 10 processes the eye information of the current user and can match with the existing eye information data in the device, the user is considered to be registered, otherwise, the user is considered to be unregistered.
If the current user is not registered, the processor 10 controls the display screen 30 to display a preset picture, determines a preset pupil range according to the pupil change of the current user and registers the preset pupil range; and if the current user is registered, determining a preset pupil range.
Therefore, eye information of different users can be distinguished, and then the brightness of the display screen 30 can be adjusted more reasonably, and the situation that eye information is disordered when the electronic equipment 100 is used by multiple users, and then the brightness of the display screen 30 is adjusted wrongly is avoided.
It is understood that, in some embodiments, the above process of determining whether the user is registered may be performed by iris recognition, the imaging device 20 obtains an iris image of the current user, and the processor 10 performs feature extraction and feature matching on the iris image, and if the iris image can be matched with a registered image, the current user is considered to be registered, otherwise, the current user is considered to be unregistered and the registration process is performed.
In another embodiment, the determining process may also adopt eye print recognition, which is implemented by collecting and comparing eye prints of the current user.
In certain embodiments, step 016 comprises:
0161: when the current user is unregistered, controlling the display screen 30 to respectively display a plurality of preset pictures, determining a preset pupil range and each preset change range according to the pupil change of the current user under each preset picture, and registering, wherein each preset change range corresponds to an adjustment quantity;
step 013 comprises:
0131: after the pupil area is less than the first preset value and lasts for the first preset duration, control display screen 30 to turn down the display brightness, include: after the pupil area is smaller than a first preset value, is within one preset variation range and lasts for a first preset time, the display brightness is reduced according to the corresponding regulating quantity;
step 014 includes:
0141: after the pupil area is greater than the second preset value and lasts for the second preset duration, control display screen 30 to increase the display brightness, include: and after the pupil area is larger than a second preset value, is in one of the preset change ranges and lasts for a second preset time, improving the display brightness according to the corresponding regulating quantity.
In some embodiments, steps 0161, 0131, and 0141 may all be implemented by the processor 10, that is, the processor 10 may be configured to control the display screen 30 to respectively display a plurality of preset images when the current user is not registered, determine a preset pupil range and each preset variation range according to the pupil variation of the current user in each preset image, and register, where each preset variation range corresponds to one adjustment amount; after the pupil area is smaller than a first preset value, is within one preset variation range and lasts for a first preset time, the display brightness is reduced according to the corresponding regulating quantity; and after the pupil area is larger than a second preset value, is in one of the preset change ranges and lasts for a second preset time, improving the display brightness according to the corresponding regulating quantity.
Specifically, if the current user is not registered, the processor 10 controls the display 30 to display a plurality of preset frames respectively, and there is a brightness difference between the preset frames (e.g. a brighter preset frame, a darker preset frame, and other preset frames with different brightness).
For example, in one embodiment, five kinds of preset pictures with different luminances are provided, namely, high luminance, normal luminance, low luminance, and low luminance. When a user watches the pictures, pupils are influenced by the brightness of the pictures, and when the brightness of the pictures is higher than normal brightness, the pupil area of the user is reduced; when the image brightness is lower than the normal brightness, the pupil area of the user becomes larger. And determining a preset pupil range and five preset change ranges according to the pupil change of the current user under the five preset pictures, and registering, wherein each preset change range corresponds to one regulating variable. In one embodiment, the adjustment amount of the high luminance is greater than the adjustment amount of the higher luminance, the adjustment amount of the low luminance is greater than the adjustment amount of the lower luminance, and the adjustment amount of the normal luminance is 0.
After determining and registering the preset pupil range and each preset variation range, the processor 10 calculates and judges the pupil area of the current user, and reduces the display brightness according to the corresponding adjustment amount after the pupil area is smaller than a first preset value, is in one of the preset variation ranges and lasts for a first preset time; and after the pupil area is larger than a second preset value, is in one of the preset change ranges and lasts for a second preset time, improving the display brightness according to the corresponding regulating quantity.
Therefore, the pupil variation of different users for displaying the luminance variation can be obtained, so that the electronic device 100 can achieve corresponding more accurate luminance variation for different users.
Referring to fig. 4, in some embodiments, step 012 includes:
0121, processing eye information to determine the edge information of pupil;
0122, determining the center information of the pupil according to the edge information;
0123, determining pupil area according to the edge information and the center information;
0124, judging whether the pupil area exceeds the preset pupil range.
In certain embodiments, steps 0121, 0122, 0123, and 0124 may all be implemented by the processor 10, that is, the processor 10 may be configured to process the eye information to determine the edge information of the pupil; determining the center information of the pupil according to the edge information; determining the pupil area according to the edge information and the center information; and judging whether the pupil area exceeds a preset pupil range.
In the process of processing the eye information, the processor 10 first identifies the eye, acquires eye information according to the acquired eye image, processes the eye information, determines edge information of the pupil, determines pupil center information according to the pupil edge information, calculates a pupil area according to the edge information and the center information, and finally judges whether the pupil area exceeds a preset pupil range.
Therefore, the pupil center and edge information is determined, eyeball tracking is facilitated, and accurate calculation can be carried out on the pupil area under the conditions of eye rotation, blinking and the like.
In some embodiments, the control method further comprises: after the display screen 30 is turned down or turned up to display brightness and the preset adaptation time length is passed, the step of controlling the imaging device 20 to acquire the image so as to obtain the eye information of the current user is entered again.
In some embodiments, the processor 10 may be configured to re-enter the step of controlling the imaging device 20 to acquire the image to obtain the eye information of the current user after the display screen 30 is turned down or turned up to the display brightness and the preset adaptation time period elapses.
Specifically, when the pupil area of the user changes for a preset time, the processor 10 controls the display screen 30 to turn down or turn up the display brightness, and provides a time for the user to adapt to the adjusted brightness, so as to prevent the pupil area from changing to cause brightness adjustment again when the user does not adapt to the current brightness. I.e., the imaging device 20 and the processor 10 stop receiving and processing the user's eye information image during this adaptation time. After the preset adaptation time length, the step of controlling the imaging device 20 to acquire the image to obtain the eye information of the current user is entered again.
For example, when the screen brightness of the device is high in a certain period of time, and the pupil area of the user becomes smaller for a first preset period of time, the processor 10 may turn down the display brightness of the display screen 30, and then enter the adaptive state. Since the brightness of the screen is reduced as the screen changes from brighter to normal brightness, the user's pupil will have a process of enlarging during this period, and the processor 10 will not control the display screen 30 to change the brightness.
Therefore, frequent screen brightness change caused by environment or other factors in the process of using the electronic device 100 by a user can be avoided, an adaptation process of the adjusted brightness is provided for the user, and user experience is improved.
In some embodiments, the control method further comprises:
018, processing the eye information to determine whether the current user's eyes are in a tired state;
019, when the eyes of the current user are in a fatigue state, sending out a prompt message.
In certain embodiments, steps 018 and 019 may be performed by processor 10, i.e., processor 10 may be configured to process eye information to determine whether the current user's eyes are in a tired state; and when the eyes of the current user are in a fatigue state, sending out prompt information.
Therefore, when the eyes of the user are in a fatigue state, prompt information such as 'take a rest' can be sent out, and the user is prompted to protect the eyes.
The prompting message may be a text or image prompt on the display 30, a vibration of the electronic device 100, a ring tone, a voice prompt, or other prompting means. For example, in one embodiment, the electronic device 100 utilizes a combination of the screen information prompt and the device vibration, when the eyes of the user are in a fatigue state, the electronic device 100 vibrates with a certain intensity, and the fatigue prompt is displayed on the display 30.
In certain embodiments, step 018 comprises:
0181, processing the eye information to determine the change rule of the pupil area of the current user;
0182 when the change rule is a preset rule, determining that the eyes of the current user are in a fatigue state.
In some embodiments, both steps 0180 and 0182 may be implemented by the processor 10, that is, the processor 10 may be configured to process the eye information to determine a change law of the pupil area of the current user; and when the change rule is a preset rule, determining that the eyes of the current user are in a fatigue state.
It should be noted that when the eyes of a person are in a fatigue state, a light sensitivity phenomenon occurs, and the change of the brightness of the object to be viewed causes the over-adjustment of the pupil, that is, when the brightness changes, the change of the pupil area is more frequent. Therefore, whether the eyes of the user are in a fatigue state or not can be judged according to the change rule of the pupil area of the user, if the change rule of the pupil area of the user is a preset rule, the eyes of the user are considered to be in the fatigue state, and the preset rule is that the number of times of change in the set time length exceeds the preset number of times.
In certain embodiments, step 018 further comprises:
0183 processing the eye information to determine a blinking frequency of the current user;
0184, when the blinking frequency is larger than the preset frequency, determining that the eyes of the current user are in a fatigue state.
In some embodiments, both steps 0183 and 0184 may be implemented by the processor 10, that is, the processor 10 may be configured to process eye information to determine a current blink frequency of the user; and when the blinking frequency is greater than the preset frequency, determining that the eyes of the current user are in a fatigue state.
Note that the blinking frequency of a human becomes high when eyes are tired. Thus, the eye information is processed by the processor 10 to determine the frequency of blinking of the current user, which may be calculated by noting the number of times the pupil area is 0 or no pupil is detected by the imaging device 20 per unit time. And when the blinking frequency is greater than the preset frequency, determining that the eyes of the current user are in a fatigue state.
For example, the preset frequency may be set to 16 times/minute (the normal blinking frequency is 15 times/minute), and when the blinking frequency of the user exceeds 16 times within a period of time, the processor 10 determines that the eyes of the user are in a fatigue state.
Therefore, the electronic device 100 can detect the fatigue state of the user more accurately, and the device is more humanized.
In certain embodiments, step 018 further comprises:
0185, processing the eye information to judge whether the pupil of the current user is in an open state;
0186, accumulating time when the pupil of the current user is in an opening state to obtain an opening duration;
0187 and when the opening time is longer than the preset time, determining that the eyes of the user are in a fatigue state currently.
In some embodiments, steps 0185, 0186 and 0187 can be implemented by the processor 10, that is, the processor 10 can be configured to process the eye information to determine whether the pupil of the current user is in the open state; accumulating time when the pupil of the current user is in an opening state to obtain an opening duration; and when the opening duration is longer than the preset duration, determining that the eyes of the current user are in a fatigue state.
Specifically, step 0185 may determine whether the pupil area is 0, and when the pupil area is not 0, the pupil area is considered to be in the open state. The time of the open state is accumulated to obtain an open duration, and when the open duration is greater than a predetermined duration, the processor 10 determines that the eyes of the current user are in a fatigue state.
Therefore, the judgment of the eye fatigue state is added, and the eye fatigue state is judged when the user uses the electronic equipment for too long, so that the electronic equipment is healthier and more humanized.
It will be appreciated that in one embodiment, the opening duration may not be accumulated by different users, that is, when the processor 10 processes the eye information, if it is determined that the current user has changed, the opening duration of the previous user may not be accumulated, but the opening duration of the current user may be accumulated again.
Therefore, the problem that opening duration is accumulated together when different users use the same device to cause error prompt is solved.
In the control method of the embodiment of the application, the electronic device 100 includes a head-mounted device 40, the imaging device 20 includes an infrared light source 21 and an infrared camera 22, the infrared light source 21 is configured to project infrared light to the eye of the current user, and the infrared camera 22 is configured to acquire an image.
The electronic device 100 includes a head-mounted device that can fix the display 30, the imaging apparatus 20, and the like in front of the eyes. The infrared light source 21 is installed at a position below the electronic device 100 corresponding to the eyes of the user, the infrared light source 21 projects infrared light to the eyes of the user, and the infrared camera 22 acquires images of the eyeballs and the pupils.
Specifically, the infrared light source 21 projects infrared light to the eyes of the user, if the user closes the eyes, the infrared light is projected on the eyelids and partially reflected, and the infrared camera 22 receives the eye information and then is processed by the processor 10, so that the pupil area of the user at this time is considered to be 0. If the user opens the eyes, the infrared light is projected on the eyeballs of the user, the infrared camera 22 receives the eye information, then the processor 10 processes the eye information, determines the edge information of the pupils, determines the center information of the pupils according to the edge information of the pupils, and performs functions of pupil area calculation, blink frequency recording and the like.
Therefore, the functions of collecting the eye information and displaying the content of the display screen 30 by the electronic equipment 100 can be realized, and the portability of the electronic equipment 100 is also improved.
It should be noted that, in the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description herein, reference to the description of the terms "certain embodiments," "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art within the scope of the present application, which is defined by the claims and their equivalents.

Claims (11)

1. A control method for an electronic apparatus including a display screen and an imaging device, the control method comprising:
controlling the imaging device to acquire an image to obtain eye information of a current user;
processing the eye information to judge whether the pupil area of the current user exceeds a preset pupil range, wherein the minimum value of the preset pupil range is a first preset value, and the maximum value of the preset pupil range is a second preset value;
after the pupil area is smaller than the first preset value and lasts for a first preset time, controlling the display screen to reduce the display brightness;
and controlling the display screen to increase the display brightness after the pupil area is larger than the second preset value and lasts for a second preset time.
2. The control method according to claim 1, characterized by further comprising:
processing the eye information to determine whether a current user is registered;
when the current user is not registered, controlling the display screen to display a preset picture, determining the preset pupil range according to the pupil change of the current user and registering;
and when the current user is registered, determining the preset pupil range.
3. The control method according to claim 2, wherein when the current user is unregistered, controlling the display screen to display a preset screen, determining the preset pupil range according to the pupil change of the current user, and registering, includes:
when the current user is not registered, controlling the display screen to respectively display a plurality of preset pictures, determining the preset pupil range and each preset variation range according to the pupil variation of the current user in each preset picture, and registering, wherein each preset variation range corresponds to one regulating variable;
after the pupil area is less than the first preset value and lasts for a first preset duration, controlling the display screen to turn down the display brightness, including:
after the pupil area is smaller than the first preset value, is within one of the preset variation ranges and lasts for the first preset time, reducing the display brightness according to the corresponding regulating quantity;
after the pupil area is greater than the second preset value and lasts for a second preset time, controlling the display screen to increase the display brightness, including:
and after the pupil area is larger than the second preset value, is within one of the preset variation ranges and lasts for the second preset time, the display brightness is improved according to the corresponding regulating quantity.
4. The control method according to claim 1, wherein the processing the eye information to determine whether the pupil area of the current user exceeds a preset pupil range comprises:
processing the eye information to determine edge information of a pupil;
determining the center information of the pupil according to the edge information;
determining the pupil area according to the edge information and the center information;
and judging whether the pupil area exceeds the preset pupil range.
5. The control method according to claim 1, characterized by comprising:
and after the display screen is turned down or turned up to the display brightness and the preset adaptation time length is passed, the step of controlling the imaging device to acquire the image so as to obtain the eye information of the current user is entered again.
6. The control method according to claim 1, characterized by further comprising:
processing the eye information to judge whether the eyes of the current user are in a fatigue state;
and when the eyes of the current user are in a fatigue state, sending out prompt information.
7. The control method according to claim 6, wherein the processing the eye information to determine whether the eyes of the current user are in a fatigue state comprises:
processing the eye information to determine a change law of the pupil area of the current user;
and when the change rule is a preset rule, determining that the eyes of the current user are in a fatigue state.
8. The control method according to claim 6, wherein the processing the eye information to determine whether the eyes of the current user are in a fatigue state comprises:
processing the eye information to determine a blink frequency for a current user;
and when the blinking frequency is greater than a preset frequency, determining that the eyes of the current user are in a fatigue state.
9. The control method according to claim 6, wherein the processing the eye information to determine whether the eyes of the current user are in a fatigue state comprises:
processing the eye information to judge whether the pupil of the current user is in an open state;
accumulating time when the pupil of the current user is in an opening state to obtain an opening duration;
and when the opening duration is longer than a preset duration, determining that the eyes of the current user are in a fatigue state.
10. The method according to any one of claims 1 to 9, wherein the electronic device comprises a head-mounted device, and the imaging device comprises an infrared light source and an infrared camera, wherein the infrared light source is configured to project infrared light to the eye of the current user, and the infrared camera is configured to acquire the image.
11. An electronic device, comprising a display screen, an imaging apparatus, and a processor configured to:
controlling the imaging device to acquire an image to obtain eye information of a current user;
processing the eye information to judge whether the pupil area of the current user exceeds a preset pupil range, wherein the minimum value of the preset pupil range is a first preset value, and the maximum value of the preset pupil range is a second preset value;
after the pupil area is smaller than the first preset value and lasts for a first preset time, controlling the display screen to reduce the display brightness;
and controlling the display screen to increase the display brightness after the pupil area is larger than the second preset value and lasts for a second preset time.
CN202010750707.XA 2020-07-30 2020-07-30 Control method and electronic device Pending CN111862899A (en)

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