WO2019153927A1

WO2019153927A1 - Screen display method, device having display screen, apparatus, and storage medium

Info

Publication number: WO2019153927A1
Application number: PCT/CN2018/123830
Authority: WO
Inventors: 覃迪; 张垚; 朱剑波; 韩放
Original assignee: 中国移动通信集团终端有限公司; 中国移动通信集团有限公司
Priority date: 2018-02-11
Filing date: 2018-12-26
Publication date: 2019-08-15
Also published as: CN110162232A

Abstract

A screen display method, a device having a display screen, an apparatus, and a storage medium. The screen display method comprises: acquiring facial feature information of a user in front of a screen (S1); identifying identity information of the user according to the facial feature information (S2); acquiring personalized information of the user according to the identity information, the personalized information comprising a distance between the face of the user and the screen, and personalized display parameters of the screen corresponding to distances (S3); calculating the distance between the face of the user and the screen (S4); acquiring a personalized display parameter corresponding to the distance (S5); and adjusting a display effect of the screen according to the personalized display parameter (S6).

Description

Screen display method, device with display screen, device and storage medium

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 20110114019, the entire disclosure of which is incorporated herein in

Technical field

The present disclosure relates to the field of human interface technologies, and in particular, to a screen display method, an apparatus having a display screen, a device, and a storage medium.

Background technique

In the related art, for a device having a display screen such as a mobile phone, a tablet computer, a television, a digital photo frame, a car screen, etc., when the environment in which the user is in a change, or when different users use, the user usually needs to repeatedly adjust the direction or size of the screen. In order to adapt to their own needs. For example, when the user forgets to wear glasses that correct vision, or when the distance between the user and the display screen changes, it is cumbersome and inconvenient to manually adjust the screen, resulting in a decrease in user experience.

Summary of the invention

In one aspect, an embodiment of the present disclosure provides a screen display method, including: acquiring facial feature information of a user before the screen; identifying identity information of the user according to the facial feature information; and acquiring personalized information of the user according to the identity information, and personalized information. Include the distance between the user's face and the screen, and the personalized display parameters of the corresponding screen; calculate the distance between the user's face and the screen; obtain the corresponding personalized display parameters according to the distance; adjust the screen according to the personalized display parameters The display effect.

According to an aspect of the embodiments of the present disclosure, acquiring facial feature information of the user before the screen includes: acquiring avatar information of the user; and acquiring facial feature information of the user according to the avatar information.

According to an aspect of an embodiment of the present disclosure, calculating a distance between a face of the user and the screen includes: capturing position information of the eyeball of the user according to the facial feature information; and calculating a distance between the face of the user and the screen according to the position information of the eyeball.

According to an aspect of an embodiment of the present disclosure, after calculating a distance between a face of the user and the screen, the method further includes: if the distance between the face of the user and the screen exceeds a minimum allowable value of the distance, and the unit of the screen displays the text within the area When the number is greater than the preset number of characters, the display area on the screen is moved to partially enlarge the text and scroll by line by line in the enlarged area that is left after being moved by the display area.

According to an aspect of an embodiment of the present disclosure, after identifying the identity information of the user according to the facial feature information, the method further includes: if the identity information of the user cannot be identified according to the facial feature information, determining that the user is a new user; configuring standardized information for the new user, and standardizing The information includes the distance between the user's face and the screen, and the standardized display parameters of the corresponding screen; reminding the new user to normalize the display parameters corresponding to the distance and distance in the standardized information, and calibrating one by one; storing the calibrated information, The calibrated information is used as personalized information for the user.

According to an aspect of the embodiments of the present disclosure, configuring the standardized information for the new user includes: acquiring uncorrected vision information of the new user and the glasses degree information after correcting the vision; and calculating the degree of the glasses according to the uncorrected vision information and the corrected vision The first normalization information and the second normalization information are respectively configured; the standardized information selected by the new user is acquired, and the standardized information is any one of the first normalization information and the second standardized information.

According to an aspect of an embodiment of the present disclosure, the screen display method further includes: if the user adjusts the distance between the face of the user and the screen for a predetermined number of times within a predetermined time interval, determining that the user has a visual obstacle; selecting the user The standardized information is replaced with any one of the first normalized information and the second standardized information; the user is reminded to calibrate the standardized display parameters corresponding to the distance and the distance in the replaced standardized information; and the calibrated information is stored The calibrated information is used as the personalized information of the user.

On the other hand, an embodiment of the present disclosure further provides an apparatus having a display screen, including: a feature collection unit, configured to acquire facial feature information of a user before the screen; and a processing unit, configured to identify the identity of the user according to the facial feature information. Information; obtaining personalized information of the user according to the identity information, the personalized information includes a distance between the face of the user and the screen, and a personalized display parameter of the corresponding screen; calculating a distance between the face of the user and the screen; Obtaining a corresponding personalized display parameter; a display unit configured to adjust a display effect of the screen according to the value of the display parameter.

According to an aspect of an embodiment of the present disclosure, the processing unit is further configured to: if the user's identity information cannot be identified according to the facial feature information, determine that the user is a new user; configure the standardized information for the new user, the standardized information including the user's face and the screen The distance between the distance and the standardized display parameters of the corresponding screen; remind the new user to calibrate the standardized display parameters corresponding to the distance and distance in the standardized information; store the calibrated information, and use the calibrated information as the user's personality Information.

According to an aspect of an embodiment of the present disclosure, a device having a display screen is provided with vision detecting means for acquiring uncorrected visual acuity information of a new user and optician degree information after correcting visual acuity;

The processing unit is further configured to respectively configure the first normalization information and the second normalization information according to the uncorrected visual acuity information and the corrected degree information of the corrected visual acuity; acquire the standardized information selected by the new user, and the standardized information is the first standardized information and the second Any of the standardized information.

According to an aspect of an embodiment of the present disclosure, the processing unit is further configured to: if the user adjusts the distance between the face of the user and the screen for a predetermined number of times within a predetermined time interval, determining that the user has a visual obstacle; selecting the user The standardized information is replaced with any one of the first normalized information and the second standardized information; the user is reminded to perform calibration on the standardized display parameters corresponding to the distance and the distance in the replaced standardized information; and the stored information is stored, The calibrated information is used as the personalized information of the user.

According to an aspect of an embodiment of the present disclosure, the processing unit is further configured to: if the distance between the face of the user and the screen exceeds a minimum allowable value of the distance, and the number of characters in the unit display area of the screen is greater than the preset number of characters, then The display area on the screen is moved so that the text is partially enlarged and scrolled line by line in the enlarged area that is left after being moved by the display area.

In another aspect, an embodiment of the present disclosure further provides an apparatus having a display screen, including: a memory storing computer program instructions; and a processor, when the computer program instructions are executed by the processor, implementing the screen display method as described above .

In another aspect, embodiments of the present disclosure also provide a computer readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform a screen display method as described above.

DRAWINGS

Features, features, and technical effects of the exemplary embodiments of the present disclosure will be described below with reference to the accompanying drawings.

1 is a flow chart of a screen display method according to Embodiment 1 of the present disclosure;

2 is a schematic diagram of an application scenario of the screen display method shown in FIG. 1;

3 is a schematic diagram of another application scenario of the screen display method shown in FIG. 1;

4 is a schematic diagram of another application scenario of the screen display method shown in FIG. 1;

FIG. 5 is a schematic diagram of another application scenario of the screen display method illustrated in FIG. 1; FIG.

6 is a flow chart of another screen display method according to Embodiment 2 of the present disclosure;

7 is a schematic diagram of a feature face for identifying identity information of a user in the screen display method shown in FIG. 6;

8 is a flow chart showing the acquisition of facial feature information of a user in the screen display method shown in FIG. 6;

9 is a flow chart showing a process of configuring personalized information for a new user in the screen display method shown in FIG. 6;

10 is a flow chart showing a process of configuring standardization information for a new user in the screen display method shown in FIG. 9;

11 is a flow chart showing a calculation of a distance between a face of a user and a screen in the screen display method shown in FIG. 6;

12 is a flow chart showing a process of configuring personalized information for a visually impaired user in the screen display method shown in FIG. 6;

FIG. 13 is a schematic diagram of an apparatus having a display screen according to Embodiment 3 of the present disclosure; FIG.

14 is a schematic diagram of another apparatus having a display screen according to Embodiment 4 of the present disclosure;

FIG. 15 is a schematic diagram of an application scenario of the device with a display screen shown in FIG. 14.

Detailed ways

Embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. The detailed description and the accompanying drawings are set forth to illustrate the embodiments of the present invention, and are not intended to limit the scope of the disclosure.

In order to better understand the present disclosure, a screen display method and an apparatus having a display screen of an embodiment of the present disclosure will be described in detail below with reference to FIGS. 1 through 15.

Embodiment 1

Referring to FIG. 1, a first embodiment of the present disclosure provides a screen display method, including:

In step S1', the distance between the face of the user and the screen is calculated.

The screen can be a display for devices such as mobile phones, computers, and televisions. The distance between the user's face and the screen can be measured using, but not limited to, an infrared sensing device or a distance sensor. It can also be obtained according to the eyeball tracking algorithm and the three-dimensional ranging principle in stereo vision. In actual use, the distance between the user's face and the screen can be calculated in real time, and the distance between the user's face and the screen can be calculated periodically. For example, the period duration can be 5 to 10 s, depending on the specific use. Depending on the occasion.

In step S2', the corresponding display parameter is obtained according to the distance. The display parameter of the corresponding screen may be preset. For example, when the distance is 20 cm, the size of the font displayed on the screen is the fourth font.

In step S3', the display effect of the screen is adjusted according to the display parameters.

Please refer to FIG. 2 to FIG. 4 together, taking the display screen of the mobile phone as an example, obtaining the facial feature information of the user in front of the screen can identify the identity information of the user C, and obtain the personalized information of the user C according to the identity information.

When the distance L ≥ A between the user's face and the display screen is calculated, the personalized information of the user C is queried according to the distance L, the display parameter P1 corresponding to the distance L is obtained, and the display effect of the screen is adjusted according to the display parameter P1, such as As shown in interface a in Figure 2, four icons are displayed in the display of the mobile phone.

When it is calculated that the distance L between the face of the user and the display screen changes to A ≤ L ≤ B, the display parameter P2 corresponding to the distance L is obtained by querying the personalized information of the user C, and the display of the screen is adjusted according to the display parameter P2. The effect, as shown in the interface b in FIG. 3, is that the icons in the display screen of the mobile phone are reduced according to a fixed rule and then rearranged, and a total of six icons are displayed.

When it is calculated that the distance L between the user's face and the display screen continues to change to L ≤ C, the display parameter P3 corresponding to the distance L is obtained by querying the personalized information of the user C, and the display effect of the screen is adjusted according to the display parameter P3. As shown in the interface c in FIG. 4, the icons in the display screen of the mobile phone are further reduced according to a fixed rule, and then rearranged, and a total of eight icons are displayed.

It can be understood that the distances A, B, and C in the predetermined information are merely exemplary descriptions, and are not limited to these three values, and may be set according to specific application scenarios.

Referring to FIG. 5, after calculating the distance between the face of the user and the screen in step S1', the method further includes: if the distance between the face of the user and the screen exceeds the minimum allowable value of the distance, and the unit of the screen displays the text within the area When the number is greater than the preset number of characters, the display area on the screen is moved to partially enlarge the text and scroll by line by line in the enlarged area that is left after being moved by the display area.

Accordingly, the image can also be enlarged at the same time in accordance with the magnification of the text. The size of the normal display area and the enlarged area can be adjusted according to the user's usage scenario.

The screen display method provided in Embodiment 1 of the present disclosure can make the screen adaptively change according to changes in the environment in which the user is located, so that the user can better view the screen and improve the user experience.

Embodiment 2

Referring to FIG. 6, a second embodiment of the present disclosure further provides a screen display method, including:

In step S1, facial feature information of the user before the screen is acquired. The screen can be a display for devices such as mobile phones, computers, and televisions. The facial feature information may be the facial contour of the human body, the size and position of the eyeball or the size and position of the bridge of the nose, and may also include whether or not to wear glasses or the like.

In step S2, the identity information of the user is identified according to the facial feature information.

According to the facial feature information identified above and the user identity feature information pre-stored in the system, the identity information of the user can be identified.

For example, the identity information of the user may be identified according to an avatar recognition algorithm in the related art, including but not limited to a feature face algorithm (Eigenface). The following describes a method for identifying identity information of a user by taking a feature face algorithm as an example.

Referring to FIG. 7, M face images including facial feature information of a human body are acquired, and each face image can be converted into an N-dimensional vector to form an M*N-dimensional training image set S, and the training image set S After the dimension reduction is N*N matrix, the feature vector u is solved. The feature vector u is the deviation of each image vector and the mean image in the training image set S in the direction, and the projection of the face to be recognized in the feature vector is performed. , the difference between the face to be recognized and the mean image in different directions can be known. If these feature vectors are restored to pixel arrangement, it is like a human face, so it is called a feature face, as shown in Figure 2.

For the face to be recognized, the kth feature face can be marked as:

Where k=1, 2...M, u _k is the vector of the kth feature face, Γ is the N-dimensional vector of the face image, and Ψ is the N-dimensional vector of the mean image of the training image set S.

Equation (1) can calculate the weight of the kth feature face u _k , and M weights can form a vector Ω ^T , as shown in equation (2):

Ω ^T = [ω ₁ , ω ₂ , ... ω _M ] (2)

The face to be recognized is identified according to formula (3):

ε _k =||Ω-Ω _k || ² (3)

Where Ω is the weight vector of the face to be recognized, Ω _k is the weight vector of a certain face in the training image set S, and ε _{k is} the Euclidean distance of the two. When the kth Euclidean distance is less than the threshold, it can be discriminated that the face to be recognized is the kth face in the training image set S, thereby identifying the identity information of the user. When traversing all the faces in the training image set S, and each Euclidean distance obtained is greater than the threshold, it can be discriminated that the face to be recognized is not in the training image set S, but is the face of the new user. The setting of the threshold may be determined according to different applicable occasions of the training image set S.

Step S3: Acquire personalized information of the user according to the identity information, where the personalized information includes a distance between the face of the user and the screen, and a personalized display parameter of the corresponding screen, as shown in FIG. For example, when the distance is 20 cm, the size of the font displayed on the screen is the fourth font.

In step S4, the distance between the face of the user and the screen is calculated. The calculation method of the distance can be obtained according to the eyeball tracking algorithm and the three-dimensional ranging principle in stereo vision. It can also be measured using, for example, but not limited to, an infrared sensing device or a distance sensor.

In step S5, the corresponding personalized display parameter is obtained according to the distance.

In step S6, the display effect of the screen is adjusted according to the personalized display parameter.

The screen display method provided by the second embodiment of the present disclosure can query the personalized information of the user according to the identity information of the user and the change of the environment, so that the screen is adaptively changed, so as to meet the usage requirements of each user and enable the user. Better viewing of the screen further enhances the user experience.

The implementation steps of the screen display method provided by the second embodiment of the present disclosure are described in further detail below with reference to the accompanying drawings.

Referring to FIG. 8, in step S1, obtaining facial feature information of the user before the screen includes:

In step S11, the avatar information of the user is obtained. The avatar information of the user may obtain avatar information by, for example, but not limited to, a camera device, an infrared sensing device, or other sensing means.

Step S12: Acquire facial feature information of the user according to the avatar information.

Referring to FIG. 9, in step S2, after identifying the identity information of the user according to the facial feature information, the method further includes:

Step S21, if the identity information of the user cannot be identified according to the facial feature information, it is determined that the user is a new user. According to the eigenface algorithm described above, when the Euclidean distance of the face to be recognized and all the faces in the training image set S are greater than the threshold, it can be determined that the face to be recognized is not in the training image set S, so it is determined that The user is a new user.

Step S22, configuring standardization information for the new user, the standardized information including the distance between the face of the user and the screen, and the standardized display parameter of the screen corresponding to the distance;

In step S23, the new user is reminded to perform calibration on the standardized display parameters corresponding to the distance and the distance in the standardized information.

In step S24, the calibrated information is stored, and the calibrated information is used as the personalized information of the user.

Referring to FIG. 10, in step S22, standardization information is configured for a new user, including:

Step S221, acquiring uncorrected vision information of the new user and the glasses degree information after correcting the vision;

Step S222, respectively configuring first normalization information and second normalization information according to the uncorrected visual acuity information and the corrected degree information of the corrected visual acuity;

Step S223, acquiring normalization information selected by the new user, and the normalization information is any one of the first normalization information and the second normalization information.

Referring to FIG. 11, in step S4, calculating the distance between the user's face and the screen includes:

Step S41, capturing location information of the user's eyeball based on the facial feature information.

In actual use, the position information of the user's eyeball can be captured in real time, and the position information of the user's eyeball can be periodically captured. For example, the period duration can be 5 to 10 s, depending on the specific use occasion.

The eyeball tracking algorithm can be used to capture the position information of the user's eyeball. Based on the aforementioned eigenface algorithm, it is possible to lock the possible positional area of the eyeball, and when looking for the eyeball position, it is only necessary to process it in the area where the smaller human eye is possible. In this area, the eyeball model can be approximately circular, or partially circular due to eyelids or other objects. Due to the distinct color differences between the iris and the white of the eye, there is also a significant edge separation in the grayscale image with a large gradient at the edges. Geometrically: the center of a circular object can be detected by analyzing the vector field of the image gradient, which has previously been used for eye center positioning. For example, the center of the eyeball is detected by utilizing the characteristics of the flow field generated by the strong gray scale contrast between the iris and the sclera. This method calculates the direction of the gradient vector for each point on the image and plots the line along the direction of the gradient. For each such point added to each point, a count is added to the corresponding container at that point. Finally, the cumulative count of the corresponding containers at all points on the image is counted. The point corresponding to the container with the largest count value can be considered as the center of a circular area in the image, and the center can be considered as the center of the eyeball.

However, various interfering objects such as eyebrows, eyelids or glasses in the image may cause errors in the detection process and cause recognition errors, especially the strong reflection of the hair and the glasses show a significant image gradient. The image gradients of the pupil and iris have the same direction, and the estimated eye center may be wrong at this time. The eye tracking algorithm can overcome these problems through a post-processing step, which is to set a threshold to judge the objective function. Applying this threshold to delete a part of the fake eye target, and then determining the maximum eigenvalue of the remaining candidate eye targets, thereby determining the true target among the remaining candidate targets. This process is compared with the initial judgment, and most of the interference targets are eliminated, and the remaining candidate targets are judged, thereby improving the accuracy of the detection. And this threshold can be used to take 90% of the maximum eigenvalue in the entire image. The above-mentioned eye tracking algorithm is a technology in the related art, and will not be described herein.

In step S42, the distance between the face of the user and the screen is calculated according to the position information of the eyeball.

According to the three-dimensional ranging principle in stereo vision, the distance between the user's face and the screen can be calculated. Specifically, according to the above-mentioned eyeball tracking algorithm, the position information of the two eyeballs of the user can be captured in real time or periodically, and the three-dimensional information of the measured object can be obtained by using the imaging difference of the same target on the two projected images, thereby calculating The distance between the user's face and the screen. The above distance identification algorithm is a technology in the related art, and details are not described herein again.

Referring to FIG. 12, the screen display method provided by the embodiment of the present disclosure further includes:

In step S7, if the user adjusts the distance between the face of the user and the screen more than the preset number of times within the predetermined time interval, it is determined that the user has a visual disorder.

Step S8, replacing the standardized information selected by the user with any one of the first normalization information and the second normalization information;

Step S9, prompting the user to perform calibration on the standardized display parameters corresponding to the distance and the distance in the standardized information after the replacement;

In step S10, the calibrated information is stored, and the calibrated information is used as the personalized information of the user.

In addition, similar to the screen display method in the first embodiment, after calculating the distance between the face of the user and the screen in step S4, further comprising: if the distance between the face of the user and the screen exceeds the minimum allowable value of the distance, and When the number of characters in the unit display area of the screen is larger than the preset number of characters, the display area on the screen is moved to partially enlarge the text and scroll by line by line in the enlarged area that is left after being moved by the display area.

Therefore, the screen display method provided by the second embodiment of the present disclosure can identify the personalized needs of different users in different environments by recognizing the identity information of the user, thereby enabling the screen to be adaptively changed, such as zooming in, zooming out, zooming, Partially zoom in and out and rearrange according to fixed rules, so that users can better watch the screen and improve the user experience.

Embodiment 3

Referring to Figure 13, a third embodiment of the present disclosure also provides an apparatus having a display screen, comprising: a processing unit 20' and a display unit 30'. The device having the display screen may be a terminal device such as a mobile phone, a computer, a tablet computer, or a separate display device. The embodiment of the present disclosure is described by taking a computer as an example.

The processing unit 20' is configured to calculate the distance between the face of the user and the screen, which may be calculated in real time or periodically, and the corresponding display parameters are obtained from the distance. The display parameter of the corresponding screen may be preset. For example, when the distance is 20 cm, the size of the font displayed on the screen is the fourth font.

As an alternative embodiment, processing unit 20' may measure the distance between the user's face and the screen based on, for example, a distance sensor including, but not limited to, an infrared sensing device. It can also be obtained according to the eyeball tracking algorithm and the three-dimensional ranging principle in stereo vision.

The display unit 30' is for adjusting the display effect of the screen in accordance with the display parameters.

In addition, if the distance L between the face of the user and the screen exceeds the minimum allowable value of the distance, and the number of characters in the unit display area of the screen is greater than the preset number of characters, the processing unit 20' is further configured to: on the screen The display area is moved to partially enlarge the text and scroll by line by line in the enlarged area remaining after being moved by the display area.

The device with the display screen provided by the third embodiment of the present disclosure can make the screen adaptively change according to the change of the user's environment, so that the user can better view the screen and improve the user experience.

Embodiment 4

Referring to FIG. 14 , Embodiment 4 of the present disclosure further provides an apparatus having a display screen, including: a feature collection unit 10, a processing unit 20, and a display unit 30. The device having the display screen may be a terminal device such as a mobile phone, a computer, a tablet computer, or a separate display device. The embodiment of the present disclosure is described by taking a computer as an example.

The feature collection unit 10 is configured to acquire facial feature information of the user before the screen.

As an optional implementation manner, the feature collection unit 10 can be, but not limited to, an infrared sensing device.

As an optional implementation manner, the apparatus for displaying a screen provided by the embodiment of the present disclosure further includes an image capturing apparatus for acquiring the avatar information of the user, and the feature collecting unit 10 acquires the facial feature information of the user according to the avatar information.

The processing unit 20 is configured to identify the identity information of the user according to the facial feature information, and obtain the personalized information of the user according to the identity information, where the personalized information includes a distance between the face of the user and the screen, and a personalized display parameter of the corresponding screen; Calculating the distance between the user's face and the screen, the distance can be calculated in real time or periodically, and the corresponding display parameters are obtained according to the distance.

As an alternative embodiment, processing unit 20 may measure the distance between the user's face and the screen based on, for example, a distance sensor including, but not limited to, an infrared sensing device.

As an optional implementation manner, the processing unit 20 may further acquire the facial feature information of the user according to the avatar information of the user acquired by the feature collecting unit 10, and capture the position information of the eyeball of the user in real time or periodically according to the facial feature information. And using the eye tracking technology and the three-dimensional ranging principle in stereo vision, the distance between the user's face and the screen is calculated.

The display unit 30 is configured to adjust the display effect of the screen according to the personalized display parameter.

The device with the display screen provided in Embodiment 4 of the present disclosure can make the screen adaptively change according to the identity information of the user and the environment of the user, so that the user can better view the screen and improve the user experience.

Referring to FIG. 15, if the identity information of the user cannot be identified according to the facial feature information, the processing unit 20 is further configured to determine that the user is a new user; configure standardized information for the new user, and the standardized information includes a distance between the face of the user and the screen, and Normalized display parameters of the corresponding screen; remind new users to normalize the display parameters corresponding to the distance and distance in the standardized information, and calibrate one by one, for example, by pop-up dialog; store the calibrated information, and calibrate the information Personalized information as a user.

In addition, the device with the display screen provided by the embodiment of the present disclosure is configured with a vision detecting device (not shown), and the visual acuity detecting device can detect whether the visual acuity of the user is myopia, hyperopia, astigmatism or even night blindness, and according to the detection result. Obtain the information on the degree of optician after correcting vision. The vision detecting device can also acquire uncorrected vision information of the user.

Further, the processing unit 20 is further configured to: respectively configure the first normalization information and the second normalization information according to the uncorrected vision information and the corrected degree information of the corrected vision; acquire the standardized information selected by the new user, and the standardized information is the first standardized Any of information and second standardized information.

Further, if the user adjusts the distance L between the face of the user and the screen to be greater than the preset number of times within a predetermined time interval, the processing unit 20 is further configured to: determine that the user has a visual obstacle; and replace the standardized information selected by the user. For any one of the first normalization information and the second normalization information; reminding the user to perform calibration on the standardized display parameters corresponding to the distance and the distance in the replaced standardized information; storing the calibrated information, and calibrating the information Information as personalized information for users.

In addition, if the distance L between the face of the user and the screen exceeds the minimum allowable value of the distance, and the number of characters in the unit display area of the screen is greater than the preset number of characters, the processing unit 20 is further configured to: display on the screen The area is moved so that the text is partially enlarged and scrolled line by line within the enlarged area that is left after being moved by the display area.

It is to be understood that the device having the display screen provided by the embodiment of the present disclosure is the execution body of the foregoing screen display method. For the specific execution manner of each unit, refer to the content of the foregoing screen display method, and details are not described herein again.

In addition, an embodiment of the present disclosure further provides an apparatus having a display screen, including: a memory storing computer program instructions; and a processor, when the computer program instructions are executed by the processor, implementing the screen display method as described above.

Additionally, embodiments of the present disclosure also provide a computer readable storage medium comprising instructions that, when executed on a computer, cause the computer to perform a screen display method as previously described.

While the present disclosure has been described with reference to the preferred embodiments thereof, various modifications may be made thereto and the components may be substituted with equivalents without departing from the scope of the present disclosure. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present disclosure is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

A screen display method comprising:

Obtaining facial feature information of the user before the screen;

Identifying identity information of the user according to the facial feature information;

Acquiring the personalized information of the user according to the identity information, where the personalized information includes a distance between the face of the user and the screen, and a personalized display parameter of the screen corresponding to the distance;

Calculating a distance between the face of the user and the screen;

Obtaining a corresponding personalized display parameter according to the distance;

Adjusting the display effect of the screen according to the personalized display parameter.
The screen display method according to claim 1, wherein the acquiring facial feature information of the user before the screen comprises:

Obtaining avatar information of the user;

Obtaining the facial feature information of the user according to the avatar information.
The screen display method according to claim 1 or 2, wherein the calculating the distance between the face of the user and the screen comprises:

Capturing position information of the eyeball of the user according to the facial feature information;

Calculating a distance between the face of the user and the screen according to position information of the eyeball.
The screen display method according to claim 1, after the calculating the distance between the face of the user and the screen, the screen display method further comprises:

If the distance between the face of the user and the screen exceeds a minimum allowable value of the distance, and the number of characters in the unit display area of the screen is greater than a preset number of characters, then The display area on the screen is subjected to a moving process so that the text is partially enlarged and scrolled progressively in the enlarged area remaining after being moved by the display area.
The screen display method according to claim 1, after the identifying the identity information of the user according to the facial feature information, the screen display method further includes:

If the identity information of the user cannot be identified according to the facial feature information, determining that the user is a new user;

Configuring standardization information for the new user, the standardized information including a distance between the face of the user and the screen, and a standardized display parameter of the screen corresponding to the distance;

Reminding the new user to perform calibration on the normalized display parameters corresponding to the distance and the distance in the standardized information;

The calibrated information is stored, and the calibrated information is used as the personalized information of the user.
The screen display method according to claim 5, wherein the configuring the standardized information for the new user comprises:

Obtaining the uncorrected vision information of the new user and the glasses degree information after correcting the vision;

Disposing the first normalization information and the second normalization information according to the uncorrected visual acuity information and the corrected degree of vision information;

Obtaining the normalization information selected by the new user, the normalization information being any one of the first normalization information and the second normalization information.
The screen display method according to claim 6, further comprising:

Determining that the user has a visual impairment if the number of times the user adjusts the distance between the face of the user and the screen is greater than a preset number of times within a predetermined time interval;

Replacing the standardized information selected by the user with any one of the first normalization information and the second normalization information;

Reminding the user to perform calibration on the standardized display parameters corresponding to the distance in the standardized information after the replacement;

The calibrated information is stored, and the calibrated information is used as the personalized information of the user.
A device having a display screen, comprising:

a feature collection unit (10), configured to acquire facial feature information of the user before the screen;

a processing unit (20), configured to identify identity information of the user according to the facial feature information; acquire personalized information of the user according to the identity information, where the personalized information includes the face of the user and the a distance between the screens, and a personalized display parameter of the screen corresponding to the distance; calculating a distance between the face of the user and the screen; and acquiring a corresponding personalized display parameter according to the distance;

The display unit (30) is configured to adjust a display effect of the screen according to the personalized display parameter.
The device with a display screen according to claim 8, wherein the processing unit (20) is further configured to: if the identity information of the user cannot be identified according to the facial feature information, determine that the user is a new user; configuring standardized information for the new user, the standardized information including a distance between the face of the user and the screen, and a standardized display parameter of the screen corresponding to the distance; reminding the new user And calibrating the standardized display parameters corresponding to the distance and the distance in the standardized information; storing the calibrated information, and using the calibrated information as the personalized information of the user.
A device having a display screen according to claim 9, wherein said device having a display screen is provided with vision detecting means (40) for acquiring uncorrected visual acuity information and corrective vision of said new user Degree information;

The processing unit (20) is further configured to respectively configure first normalization information and second normalization information according to the uncorrected visual acuity information and the corrected degree of vision information; and acquiring the new user selected The standardized information is any one of the first normalization information and the second normalization information.
The apparatus according to claim 10, wherein said processing unit (20) is further configured to adjust a distance between said user's face and said screen if said user is within a predetermined time interval Determining that the user has a visual impairment; and replacing the standardized information selected by the user with any one of the first normalization information and the second standardized information; The user performs calibration on the normalized display parameters corresponding to the distance and the distance in the standardized information after the replacement; stores the calibrated information, and uses the calibrated information as the personalized information of the user. .
The apparatus according to claim 8, wherein the processing unit (20) is further configured to: if the distance between the face of the user and the screen exceeds a minimum of the distance When the value is allowed, and the number of characters in the unit display area of the screen is greater than the preset number of characters, the display area on the screen is moved to make the text partially enlarged and scrolled by line by line. In the enlarged area where the display area moves after the space is left.
A device having a display screen, comprising:

a memory storing computer program instructions;

A processor, when the computer program instructions are executed by the processor, implements the screen display method of any one of claims 1-7.
A computer readable storage medium, wherein

The computer readable storage medium includes instructions that, when executed on a computer, cause the computer to perform the screen display method of any of claims 1-7.