CN110430469B - Television display effect adjusting method, device, system and storage medium - Google Patents

Television display effect adjusting method, device, system and storage medium Download PDF

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Publication number
CN110430469B
CN110430469B CN201910590630.1A CN201910590630A CN110430469B CN 110430469 B CN110430469 B CN 110430469B CN 201910590630 A CN201910590630 A CN 201910590630A CN 110430469 B CN110430469 B CN 110430469B
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China
Prior art keywords
user
focal length
television
imaging lens
presbyopia
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CN110430469A (en
Inventor
应青青
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Shenzhen Skyworth RGB Electronics Co Ltd
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Shenzhen Skyworth RGB Electronics Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
    • G06F3/013—Eye tracking input arrangements
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/441—Acquiring end-user identification, e.g. using personal code sent by the remote control or by inserting a card
    • H04N21/4415—Acquiring end-user identification, e.g. using personal code sent by the remote control or by inserting a card using biometric characteristics of the user, e.g. by voice recognition or fingerprint scanning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44213—Monitoring of end-user related data
    • H04N21/44218—Detecting physical presence or behaviour of the user, e.g. using sensors to detect if the user is leaving the room or changes his face expression during a TV program
    • 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
    • G06V40/178—Human faces, e.g. facial parts, sketches or expressions estimating age from face image; using age information for improving recognition

Abstract

The invention discloses a method, a device and a system for adjusting the display effect of a television and a storage medium. The television display effect adjusting method comprises the following steps: when it is determined that a user is watching television, acquiring age data of the user; acquiring presbyopia degrees of the user according to the age data; and adjusting the focal length of an imaging lens arranged between the user and the television according to the presbyopia degree. The invention automatically adjusts the focal length of the imaging lens between the user and the television aiming at the users with different presbyopia degrees, thereby realizing the automatic adjustment of the display effect of the television and leading the user to watch clear television images without wearing presbyopia glasses.

Description

Television display effect adjusting method, device, system and storage medium
Technical Field
The invention relates to the technical field of television display, in particular to a method, a device and a system for adjusting the display effect of a television and a storage medium.
Background
Many old people with presbyopia need wear the presbyopic glasses when watching TV and just can see clear TV image, however, many old people are not used to wear presbyopic glasses, wear presbyopic glasses for a long time and see TV and also can feel uncomfortable. In the prior art, no method for automatically adjusting the display effect of the television according to the presbyopia degree of the old who watches the television exists.
Thus, there is still a need for improvement and development of the prior art.
Disclosure of Invention
The present invention provides a method, a system, a device and a storage medium for adjusting the display effect of a television, aiming at solving the problem that the display effect of a television cannot be automatically adjusted according to the presbyopia degree of the elderly in the prior art.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a television display effect adjusting method, wherein the method comprises the following steps:
when it is determined that a user is watching television, acquiring age data of the user;
acquiring presbyopia degrees of the user according to the age data;
and adjusting the focal length of an imaging lens arranged between the user and the television according to the presbyopia degree.
The method for adjusting the display effect of the television set, wherein the step of judging that the user is watching the television specifically comprises the following steps:
acquiring an image in a preset range in front of a television screen through a preset camera, acquiring eye information of a user in the image, and tracking the sight direction of the user in the image through the eye information;
when the sight line direction is towards the television, starting a timer to time;
and when the time of the timer exceeds a preset threshold value, judging that the user is watching the television.
The method for adjusting the display effect of the television set, wherein the acquiring of the age data of the user specifically comprises:
extracting a face image of the user from the image, analyzing the face image of the user, and extracting biological features of the face of the user;
and calling a pre-established corresponding relation between the biological characteristics and the age data, and acquiring the age data of the user according to the biological characteristics.
The method for adjusting the display effect of the television, wherein the obtaining of the presbyopia degree of the user according to the age bracket specifically comprises:
searching corresponding presbyopia degrees in a pre-established corresponding table of different age data and presbyopia degrees according to the age data;
and storing the presbyopia degrees.
The method for adjusting the display effect of the television, wherein the adjusting the focal length of the imaging lens according to the presbyopia degree specifically comprises the following steps:
calling a pre-established corresponding relation between the presbyopia degree and the focal length of the imaging lens, and acquiring a target focal length value according to the presbyopia degree;
and adjusting the focal length of the imaging lens to the target focal length value.
The method for adjusting the display effect of the television is characterized in that the imaging lens is a liquid crystal zoom lens.
The method for adjusting the display effect of the television, wherein the adjusting the focal length of the imaging lens to the target focal length value specifically comprises:
calling a pre-established corresponding relation between the focal length of the imaging lens and the voltage value, and acquiring a corresponding target voltage value according to the target focal length value;
applying the target voltage value to the imaging lens.
A television display effect adjusting apparatus, wherein the apparatus comprises: a processor, a storage medium communicatively coupled to the processor, wherein the storage medium is adapted to store a plurality of instructions; the processor is suitable for calling instructions in the storage medium to execute the television display effect adjusting method for realizing any one of the above.
A television display effect adjustment system, the system comprising:
the system comprises an age data acquisition module, a display module and a display module, wherein the age data acquisition module is used for acquiring age data of a user when the user is judged to watch a television;
the presbyopia degree acquisition module is used for acquiring the presbyopia degree of the user according to the age data;
and the focal length adjusting module is used for adjusting the focal length of the imaging lens arranged between the user and the television according to the presbyopia degree.
A storage medium, wherein the storage medium stores one or more programs, and the one or more programs are executable by one or more processors to implement the steps of the television display effect adjustment method according to any one of the above.
The invention has the beneficial effects that: the invention automatically adjusts the focal length of the imaging lens in front of the television screen aiming at users with different presbyopia degrees, thereby realizing the automatic adjustment of the display effect of the television and leading the users to watch clear television images without wearing presbyopia glasses.
Drawings
Fig. 1 is a flowchart of a first embodiment of a method for adjusting a display effect of a television according to the present invention;
fig. 2 is a flowchart of a substep S110 of a first embodiment of a method for adjusting a display effect of a television set according to the present invention;
fig. 3 is a flowchart of a substep S120 of a first embodiment of a method for adjusting a display effect of a television set according to the present invention;
fig. 4 is a flowchart of a step S300 of an embodiment of a method for adjusting a display effect of a television set according to the present invention;
fig. 5 is a functional schematic diagram of a device for adjusting the display effect of a television set according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a first preferred embodiment of a method for adjusting a display effect of a television according to the present invention.
As shown in fig. 1, in a first embodiment, the method for adjusting the display effect of a television includes the steps of:
s100, when the user is judged to be watching the television, acquiring age data of the user.
Specifically, the step S100 includes two substeps:
s110, judging whether a user is watching a television or not;
and S120, acquiring the age bracket of the user when the judgment result is that the user is watching the television.
The specific method for determining whether the user is watching television is shown in fig. 2, and includes the steps of:
s111, acquiring an image in a preset range in front of a television screen through a preset camera, acquiring eye information of a user in the image, and tracking the sight direction of the user in the image through the eye information.
In specific implementation, an image in a preset range in front of a television can be acquired by calling equipment with an imaging function, such as a camera, and the preset range can be set according to the optimal viewing distance of the television, and a person skilled in the art can set the image according to actual conditions, analyze the image after acquiring the image, acquire a user image in the image, extract an eye part from the user image, and track the sight line of the user image.
The gaze tracking, also called eyeball tracking or eye movement tracking, has a plurality of methods for implementing the gaze tracking, for example, by projecting infrared rays to the pupil, acquiring an infrared ray spot reflected by the pupil by a camera or other specially designed optical sensor, extracting pupil rotation movement information from the change of the reflected spot, and further determining the user's gaze direction. Of course, the tracking of the gaze direction of the user in the image according to the present invention is not limited to the above-mentioned exemplary methods, and those skilled in the art may select different methods for implementing the gaze tracking according to actual situations.
When tracking the sight line direction of the user, the method also comprises the following steps:
and S112, starting a timer to time when the sight line direction is towards the television.
As described above, when the gaze direction of the user is tracked, the gaze direction of the user may be acquired, and when the gaze direction is toward the television, a timer is started to count the time when the user looks at the television.
And S113, when the time of the timer exceeds a preset threshold value, judging that the user is watching the television.
Specifically, a time threshold is preset, the time of the timer is acquired in real time after the timer is started, and when the time of the timer exceeds the preset threshold, it is indicated that the user continuously watches the television for a period of time, it is determined that the user currently watching the television exists, and then the next process of adjusting the display effect of the television is started.
The skilled person can set different time thresholds according to the actual situation, for example: 0.5s, 1s or 3s, or setting a default value, providing menu options for the user to set, and setting the menu options by the user, so that the user can set the television display effect according to the use habit of the user after continuously watching the television for a long time.
In step S100, after the current user is determined to be watching tv in step S110, step S120 is executed, specifically referring to fig. 3, where step S120 includes the steps of:
s121, extracting the face image of the user from the image, analyzing the face image of the user, and extracting the biological features of the face of the user.
In step S110, the image of the user who is currently watching the television has already been acquired, and in step S121, the image of the user that has already been acquired is further analyzed. Since the biometric features of the face of the person can represent the age of the person, the image extraction and analysis technique is preferably used in the embodiment to segment the image of the user and extract the image of the face of the user. And after the image of the face of the user is obtained, extracting the biological characteristics of the face of the user.
In particular, the biometric features of the user's face include, but are not limited to: hair color, number of wrinkles, wrinkle depth. The above-mentioned biometric features are the biometric features that best reflect the age of the user.
Step S120 further includes the steps of:
and S122, calling a pre-established corresponding relation between the biological characteristics and the age data, and acquiring the age data of the user according to the biological characteristics. Before step S122, a correspondence relationship between a biometric feature and age data is established in advance, and after the biometric feature of the user is extracted, the age data of the user can be obtained according to the biometric feature correspondence, for example, the age of the user is determined by combining the white proportion of the hair of the user and the wrinkle density.
Preferably, in order to more simply and quickly acquire the age of the user according to the biometric features, in this embodiment, the approximate age of the user is acquired, specifically, several ages such as 45, 50, and 55 and biometric features corresponding to the ages are preset, the extracted biometric features of the user are compared with the preset biometric features of the ages, and the age corresponding to the closest biometric feature is selected as the age of the user. For example, the biometric characteristic of 50 years old is preset as: the white hair accounts for 30 percent, the wrinkle concentration is 20 percent, and the biological characteristic characteristics of 55 years old are as follows: the white hair accounts for 40%, the wrinkle concentration is 30%, and the white hair accounts for 32% and the wrinkle concentration is 24% of the user watching television, then the extracted biometric characteristic of the user is closest to the biometric characteristic of 50 years old, and the age of the user is judged to be 50 years old. Therefore, the calculation method is simple and does not occupy excessive data resources. Of course, the above is only an example, and those skilled in the art may select different ages and corresponding biometric characteristics, and of course, may select other algorithms for obtaining the age of the user according to the biometric characteristics, and the invention is not limited in this respect.
In the first embodiment, after the age data of the user watching the television is acquired in step S100, the following steps are executed:
and S200, according to the age data, the presbyopia degree of the user is calculated.
In the specific implementation, a table of correspondence between age data and presbyopia degrees is established in advance, as shown in the following table.
Age of the user 45 50 55 60 65 70
Presbyopia degree 100 200 250 300 325 350
As described above, the age data of the user is the preset age corresponding to the closest biometric characteristic value, and therefore, only a few preset age values and corresponding presbyopia degrees need to be set in the table of correspondence between the age data and the presbyopia degrees, and the amount of stored data is small.
When the age data of the user is acquired, calling out a corresponding table of the age data and presbyopia degrees, searching the age data of the user from the corresponding table, and acquiring the presbyopia degrees corresponding to the age data.
In the first embodiment, the method further comprises the following steps:
and S300, adjusting the focal length of an imaging lens arranged between the user and the television according to the presbyopia degree.
The invention provides a television display effect adjusting method, which is characterized in that an imaging lens is arranged and is placed between a user and a television, and the focus formed by the television image through the imaging lens can fall at different positions after the television image passes through the imaging lenses with different focal lengths.
Referring to fig. 4, step S300 includes:
and S310, calling a pre-established corresponding relation between the presbyopia degree and the focal length of the imaging lens, and acquiring a target focal length value according to the presbyopia degree.
In specific implementation, the corresponding relationship between the presbyopia degree and the focal length of the imaging lens is established in advance, that is, each presbyopia degree and the corresponding focal length of the imaging lens are set in advance, and when the presbyopia degree is obtained, the focal length of the imaging lens corresponding to the presbyopia degree is set as a target focal length value according to the corresponding focal length of the imaging lens.
Certainly, in order to reduce the data storage amount and improve the efficiency of the television display effect adjusting method, when the corresponding relation between the presbyopia degree and the focal length of the imaging lens is established, only the presbyopia degree existing in the first table and the focal length of the imaging lens corresponding to the presbyopia degree can be set. And S320, adjusting the focal length of the imaging lens to the target focal length value.
When the target focal length value of the imaging lens is obtained. And then, the focal length of the imaging lens is adjusted to the target focal length value, and after the image of the television passes through the imaging lens with the target focal length value, the image focus falls on the retina of the user, so that the user can watch a clear television image by naked eyes without wearing additional presbyopic glasses.
In the present embodiment, it is preferable to select a liquid crystal zoom lens as the imaging lens.
Specifically, the liquid crystal zoom lens is a lens with adjustable focal length, and the principle is that the liquid crystal electro-optic effect of a liquid crystal material is utilized, the orientation of liquid crystal molecules is changed through an external voltage, so that the optical property of liquid crystal is changed, the refractive index of the liquid crystal material is changed, and zooming is realized. That is, the liquid crystal zoom lens can realize a change in focal length with a change in applied voltage.
Preferably, in this embodiment, a correspondence between focal lengths of imaging lenses and voltage values is pre-established, that is, focal lengths of a plurality of imaging lenses and corresponding voltage values are pre-set, so that after the target focal length value is obtained, the corresponding voltage value can be obtained according to the target focal length value and set as the target voltage value, and then the target voltage value is applied to the imaging lenses, specifically, a voltage transformation module can be set, and the voltage transformation module can apply a voltage to the imaging lenses to adjust the focal length value of the imaging lenses to the target focal length value.
Of course, when the corresponding relationship between the focal length of the imaging lens and the voltage value is established in advance, only the focal length value of the imaging lens existing in the corresponding relationship between the presbyopia degree called in step S310 and the focal length of the imaging lens may be set, so as to reduce the data storage amount and improve the efficiency of the method.
With reference to all the embodiments, it can be seen that the method for adjusting the display effect of the television set according to the present invention establishes a corresponding relationship table between the age of the user and the presbyopia degree, analyzes the acquired image of the user watching the television set, acquires the age of the user, and further automatically determines the presbyopia degree of the user watching the television set through the corresponding relationship table, so as to automatically adjust the focal length of the imaging lens between the user and the screen of the television set, thereby achieving automatic adjustment of the display effect of the television set, so that the user with different presbyopia degrees can watch clear television images with naked eyes, and even the elderly who are not used to wear presbyopia glasses can watch television programs for a long time.
It should be understood that, although the steps in the flowcharts shown in the figures of the present specification are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a portion of the steps in the flowchart may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of performing the sub-steps or stages is not necessarily sequential, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, databases, or other media used in embodiments provided herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
Based on the above embodiments, the present invention further provides a device for adjusting a display effect of a television, and a schematic block diagram thereof may be as shown in fig. 5. The device comprises a processor, a memory, a network interface, a display screen and a temperature sensor which are connected through a system bus. Wherein the processor of the device is configured to provide computational and control capabilities. The memory of the device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the device is used for connecting and communicating with an external terminal through a network. The computer program is executed by a processor to realize the television display effect adjusting method. The display screen of the device can be a liquid crystal display screen or an electronic ink display screen, and the temperature sensor of the device is arranged in the device in advance and used for detecting the current operating temperature of internal equipment.
The television display effect adjusting device can be integrated on a television or independently arranged, and a user can use the television display effect adjusting device according to actual conditions.
It will be appreciated by those skilled in the art that the block diagram shown in fig. 5 is a block diagram of only a portion of the structure associated with the inventive arrangements and is not intended to limit the devices to which the inventive arrangements may be applied, and that a particular device may include more or less components than those shown, or may combine certain components, or have a different arrangement of components. In one embodiment, an apparatus for adjusting display effect of a television is provided, which includes a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform at least the following steps: when it is determined that a user is watching television, acquiring age data of the user;
acquiring presbyopia degrees of the user according to the age data;
and adjusting the focal length of an imaging lens arranged between the user and the television according to the presbyopia degree.
In one embodiment, the processor when executing the computer program can further implement the following steps: acquiring an image in a preset range in front of a television screen through a preset camera, acquiring eye information of a user in the image, and tracking the sight direction of the user in the image through the eye information;
when the sight line direction is towards the television, starting a timer to time;
and when the time of the timer exceeds a preset threshold value, judging that the user is watching the television.
In one embodiment, the processor when executing the computer program can further implement the following steps: extracting a face image of the user from the image, analyzing the face image of the user, and extracting biological features of the face of the user;
and calling a pre-established corresponding relation between the biological characteristics and the age data, and acquiring the age data of the user according to the biological characteristics.
In one embodiment, the processor when executing the computer program can further implement the following steps: searching corresponding presbyopia degrees in a pre-established corresponding table of different age data and presbyopia degrees according to the age data;
and storing the presbyopia degrees.
And looking up and storing the presbyopia degrees corresponding to the age data in the corresponding table. In one embodiment, the processor when executing the computer program can further implement the following steps: calling a pre-established corresponding relation between the presbyopia degree and the focal length of the imaging lens, and acquiring a target focal length value according to the presbyopia degree;
and adjusting the focal length of the imaging lens to the target focal length value.
In one embodiment, the processor when executing the computer program can further implement the following steps: calling a pre-established corresponding relation between the focal length of the imaging lens and the voltage value, and acquiring a corresponding target voltage value according to the target focal length value;
applying the target voltage value to the imaging lens.
In one embodiment, a television display effect adjustment system is provided, the system comprising: an age data acquisition module, configured to acquire age data of a user when it is determined that the user is watching a television, as described above;
a presbyopia degree obtaining module, configured to obtain presbyopia degrees of the user according to the age data, specifically as described above;
and the focal length adjusting module is used for adjusting the focal length of the imaging lens arranged between the user and the television according to the presbyopia degree, and is specifically as described above.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.

Claims (6)

1. A method for adjusting the display effect of a television is characterized by comprising the following steps:
when it is determined that a user is watching television, acquiring age data of the user;
acquiring presbyopia degrees of the user according to the age data;
adjusting the focal length of an imaging lens arranged between the user and the television according to the presbyopia degree;
the obtaining of the presbyopia degree of the user according to the age data specifically includes:
searching corresponding presbyopia degrees in a pre-established corresponding table of different age data and presbyopia degrees according to the age data;
storing the presbyopia degrees;
the adjusting of the focal length of the imaging lens according to the presbyopia degree specifically comprises:
calling a pre-established corresponding relation between the presbyopia degree and the focal length of the imaging lens, and acquiring a target focal length value according to the presbyopia degree;
adjusting the focal length of the imaging lens to the target focal length value;
the imaging lens is a liquid crystal zoom lens;
the adjusting the focal length of the imaging lens to the target focal length value specifically includes:
calling a pre-established corresponding relation between the focal length of the imaging lens and the voltage value, and acquiring a corresponding target voltage value according to the target focal length value;
applying the target voltage value to the imaging lens;
when the corresponding relation between the focal length of the imaging lens and the voltage value is established in advance, only the focal length value of the imaging lens existing in the corresponding relation between the presbyopia degree and the focal length of the imaging lens is set.
2. The method for adjusting display effect of a television set according to claim 1, wherein the determining that the user is watching television specifically comprises:
acquiring an image in a preset range in front of a screen of the television through a preset camera, acquiring eye information of a user in the image, and tracking the sight direction of the user in the image through the eye information;
when the sight line direction is towards the television, starting a timer to time;
and when the time of the timer exceeds a preset threshold value, judging that the user is watching the television.
3. The method for adjusting display effect of a television set according to claim 2, wherein the acquiring age data of the user specifically comprises:
extracting a face image of the user from the image, analyzing the face image of the user, and extracting biological features of the face of the user;
and calling a pre-established corresponding relation between the biological characteristics and the age data, and acquiring the age data of the user according to the biological characteristics.
4. A device for adjusting display effect of a television, the device comprising: a processor, a storage medium communicatively coupled to the processor, the storage medium adapted to store a plurality of instructions; the processor is adapted to call instructions in the storage medium to execute the method for adjusting the display effect of the television set according to any one of the claims 1 to 3.
5. A television display effect adjustment system, the system comprising:
the system comprises an age data acquisition module, a display module and a display module, wherein the age data acquisition module is used for acquiring age data of a user when the user is judged to watch a television;
the presbyopia degree acquisition module is used for acquiring the presbyopia degree of the user according to the age data;
the focal length adjusting module is used for adjusting the focal length of an imaging lens arranged between the user and the television according to the presbyopia degree;
the obtaining of the presbyopia degree of the user according to the age data specifically includes:
searching corresponding presbyopia degrees in a pre-established corresponding table of different age data and presbyopia degrees according to the age data;
storing the presbyopia degrees;
the adjusting of the focal length of the imaging lens according to the presbyopia degree specifically comprises:
calling a pre-established corresponding relation between the presbyopia degree and the focal length of the imaging lens, and acquiring a target focal length value according to the presbyopia degree;
adjusting the focal length of the imaging lens to the target focal length value;
the imaging lens is a liquid crystal zoom lens;
the adjusting the focal length of the imaging lens to the target focal length value specifically includes:
calling a pre-established corresponding relation between the focal length of the imaging lens and the voltage value, and acquiring a corresponding target voltage value according to the target focal length value;
applying the target voltage value to the imaging lens;
when the corresponding relation between the focal length of the imaging lens and the voltage value is established in advance, only the focal length value of the imaging lens existing in the corresponding relation between the presbyopia degree and the focal length of the imaging lens is set.
6. A storage medium, wherein the storage medium stores one or more programs, and the one or more programs are executable by one or more processors to implement the steps of the television display effect adjustment method according to any one of claims 1 to 3.
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