CN104571474A - Method and device for adaptively adjusting contents displayed on terminal screen - Google Patents
Method and device for adaptively adjusting contents displayed on terminal screen Download PDFInfo
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- CN104571474A CN104571474A CN201310487414.7A CN201310487414A CN104571474A CN 104571474 A CN104571474 A CN 104571474A CN 201310487414 A CN201310487414 A CN 201310487414A CN 104571474 A CN104571474 A CN 104571474A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 210000001747 pupil Anatomy 0.000 claims description 21
- 238000012545 processing Methods 0.000 claims description 17
- 238000010586 diagram Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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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
- G06F3/013—Eye tracking input arrangements
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/01—Indexing scheme relating to G06F3/01
- G06F2203/011—Emotion or mood input determined on the basis of sensed human body parameters such as pulse, heart rate or beat, temperature of skin, facial expressions, iris, voice pitch, brain activity patterns
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- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Eye Examination Apparatus (AREA)
- User Interface Of Digital Computer (AREA)
- Controls And Circuits For Display Device (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses a method for adaptively adjusting contents displayed on a terminal screen. The method includes acquiring biological characteristic information of the eyes of users; determining eye-screen distances from the eyes of the users to the screen according to the biological characteristic information of the eyes of the users; adjusting preset parameters of the contents displayed on the screen according to the eye-screen distances. The invention further discloses a terminal. According to the scheme, the method and the terminal have the advantage that the accuracy of adjustment results can be improved by the aid of the method and the terminal.
Description
Technical Field
The invention relates to the field of terminals, in particular to a method and a device for adaptively adjusting display contents of a terminal screen.
Background
In the prior art, the content displayed on the screen of the terminal can be adaptively adjusted. For example, the sensor may be used to detect the environmental clue characteristics such as the light intensity in the environment where the terminal is located, and adjust the display brightness of the display content accordingly.
However, the detection result of the sensor is affected by various factors in the environment, so that the detection result is not accurate enough, and the accuracy of the adjustment result is reduced.
Disclosure of Invention
In view of this, the present invention provides a method and an apparatus for adaptively adjusting display content on a terminal screen, which can improve accuracy of an adjustment result.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a method for adaptively adjusting display content of a terminal screen comprises the following steps:
collecting eye biological characteristic information of a user;
determining an eye screen distance between the eyes of the user and the screen according to the eye biological characteristic information;
and adjusting preset parameters of display contents on the screen according to the eye-screen distance.
A terminal, comprising: the device comprises an image acquisition module, a processing module and a control module;
the image acquisition module is used for acquiring eye biological characteristic information of a user and sending the eye biological characteristic information to the processing module;
the processing module is used for determining the eye-screen distance between the eyes of the user and the screen of the terminal according to the eye biological characteristic information and sending the eye-screen distance to the control module;
and the control module is used for adjusting preset parameters of display contents on the screen according to the eye-screen distance.
Therefore, by adopting the scheme of the invention, the eye-screen distance between the eyes of the user and the screen can be determined according to the collected eye biological characteristic information of the user, and the preset parameters of the display content on the screen can be adjusted according to the eye-screen distance; compared with the prior art, the adjusting basis adopted in the scheme of the invention is more objective and accurate, thereby improving the accuracy of the adjusting result.
Drawings
Fig. 1 is a flowchart of an embodiment of a method for adaptively adjusting display contents on a screen of a terminal according to the present invention.
Fig. 2 is a schematic view of the outer diameter R' of the iris of the present invention.
FIG. 3 is a schematic view of the approximate cone and the line-of-sight overlap region of the present invention.
Fig. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
Aiming at the problems in the prior art, the invention provides a scheme for adaptively adjusting the display content of a terminal screen.
In order to make the technical solution of the present invention clearer and more obvious, the solution of the present invention is further described in detail below by referring to the drawings and examples.
Fig. 1 is a flowchart of an embodiment of a method for adaptively adjusting display contents on a screen of a terminal according to the present invention. As shown in fig. 1, the method comprises the following steps:
step 11: collecting eye biological characteristic information of a user;
step 12: determining the eye screen distance between the eyes of the user and the screen of the terminal according to the collected eye biological characteristic information;
step 13: and adjusting the preset parameters of the display content on the screen according to the determined eye screen distance.
In addition, in step 11, the following processes may be further performed:
step 14: determining a sight focus area of a user on a screen according to the collected eye biological characteristic information;
step 15: and adjusting the preset parameters of the display content in the determined sight line focus area.
In steps 12 to 13, the display content on the screen is adjusted in an overall manner, and in steps 14 to 15, the local display content is adjusted in a fine manner.
How to collect the eye biometric information of the user, how to perform the overall adjustment, and how to perform the fine adjustment will be described in detail below.
One) collecting eye biological characteristic information of user
The terminal of the invention can be: mobile phones, tablet computers (pads), Personal Computers (PCs), televisions, and the like.
The method can acquire the eye biological characteristic information of a user by utilizing a front camera (facing to a screen together) on the terminal, or can also be specially provided with an image acquisition device, and the image acquisition device is utilized to acquire the eye biological characteristic information of the user, so that the prior art is how to acquire the eye biological characteristic information.
The collected eye biometric information of the user may include: the outer diameter of the iris R'; if fine adjustment is needed, the method further comprises the following steps: the two interpupillary distances D' and the pupil gaze direction, etc.
In actual acquisition, there are usually two acquired R ', one corresponding to the left eye of the user and one corresponding to the right eye of the user, and the values of the two R' are substantially or completely the same, so that the R 'corresponding to any one of the eyes may be taken as the required R', or the average value of the two R 'may be calculated and taken as the required R', and the specific implementation manner is not limited.
In addition, if there are multiple users in front of the screen, the user closest to the screen may be the reference, i.e., the R ', D' and pupil gaze direction of the user may be the desired R ', D' and pupil gaze direction.
II) adjustment of integrity
Firstly, determining the eye screen distance between the eyes of a user and a screen (such as a central point) according to the collected eye biological characteristic information; and then, adjusting the preset parameters of the display content on the screen according to the determined eye screen distance.
The overall size of the human eye is relatively constant after 3 years of age, and therefore the iris size, and in particular the outer diameter of the iris R', is used to determine the interocular distance. Fig. 2 is a schematic diagram of the outer diameter R' of the iris according to the present invention, wherein R represents the outer diameter of the pupil.
Assuming an ideal eye-screen separation of L0, corresponding to an ideal acquired iris outer diameter of R0, and assuming an actual eye-screen separation of L ', corresponding to an acquired iris outer diameter of R', then, depending on the substantially constant nature of the iris size in humans, the following are:
that is, if L0, R0, and R 'are known, L' can be calculated.
And L0 may be preset at the time of terminal shipment, or may be determined by the user through multiple tests according to the situation when the user uses the functions of the present invention of the terminal for the first time, and once L0 determines, R0 is also determined, and R' is collected in step 11. Wherein, the value of L0 will be different for different terminal types.
Accordingly, the manner of determining the inter-ocular-screen distance between the user's eyes and the screen according to the collected ocular biometric information may be as follows: calculating a quotient A0 of R0 and L0 acquired in advance; and calculating the quotient L ' of R ' and A0, and taking L ' as the determined eye screen distance.
Then, the predetermined parameters of the display content on the screen can be adjusted according to L', that is:
comparing the eye-screen separation L' to L0;
if L' is less than L0, indicating that the user is closer to the screen, less than the desired distance, the adjustment may include, but is not limited to, one or all of the following: reducing the display brightness of the display content on the screen, and reducing the display proportion of the display content on the screen;
if L' is greater than L0, indicating that the user is farther from the screen than desired, the adjustment may include, but is not limited to, one or all of the following: increasing the display brightness of the display content on the screen, and increasing the display scale of the display content on the screen;
if L' is equal to L0, no adjustment may be made.
The specific decrease or increase may be determined according to the type of the terminal and the habit of the user when using the terminal.
It should be noted that the display content described in the present invention may be a video, a picture, a text, or the like, and if the video is a video, when the diameter of the outer edge of the iris of the user is not acquired, it may be considered that the user leaves for some reason and is not in front of the screen, so that the playing of the video may be paused.
Thirdly) fine adjustment
Firstly, determining a sight focus area of a user on a screen according to collected eye biological characteristic information; thereafter, predetermined parameters of the display content within the line-of-sight focus area may be adjusted.
In practical application, a sight line overlapping area of two eyes of a user on a screen can be determined according to the distance D 'between two pupils of the user, the sight line direction of the pupils and the distance L' between the eye screens, and the sight line overlapping area is used as a sight line focus area of the user on the screen.
How to determine the sight line overlapping area according to the parameters is the prior art.
Such as: when a user comfortably looks at the screen at the head, each pupil can be respectively considered to form an approximate cone which takes the center of the pupil as the vertex and the sight line attention area of the eye where the pupil is located on the screen as the bottom, the overlapping area of the bottoms of the two approximate cones is the sight line overlapping area, as shown in fig. 3, fig. 3 is a schematic diagram of the approximate cone and the sight line overlapping area, the size and the position of the sight line overlapping area on the screen can be determined by combining the directions of D 'and L' and the sight line of the pupil and by corresponding position mapping and the like, wherein alpha represents the horizontal angle of the sight line of the pupil, and beta represents the vertical angle of the sight line of the pupil.
Subsequently, the predetermined parameters of the display content in the line-of-sight focus area may be adjusted, including but not limited to one or all of the following:
increasing display brightness of display content in the gaze focus region;
increasing the display definition of the display content in the sight-line focus region;
the display scale of the display content in the sight-line focus area is increased, and the magnification factor can be gradually and synchronously attenuated from the center radiation to the edge of the sight-line focus area.
The specific increase may be determined according to the type of the terminal and the habit of the user when using the terminal.
Based on the above description, fig. 4 is a schematic structural diagram of a terminal according to an embodiment of the present invention. As shown in fig. 4, includes: an image acquisition module 41, a processing module 42 and a control module 43.
The image acquisition module 41 is used for acquiring eye biological characteristic information of the user and sending the eye biological characteristic information to the processing module 42;
the processing module 42 is configured to determine an eye-screen distance between the user's eyes and the terminal screen according to the eye biometric information, and send the eye-screen distance to the control module 43;
and the control module 43 is used for adjusting the preset parameters of the display contents on the screen according to the eye screen spacing.
Wherein,
the ocular biometric information may include: the outer diameter of the iris R';
accordingly, the processing module 42 calculates a ratio a0 of the pre-acquired ideal iris outer edge diameter R0 and the ideal eye screen spacing L0, and calculates a ratio L ' of R ' and a0, with L ' as the determined eye screen spacing.
In addition, the first and second substrates are,
the processing module 42 may be further configured to send L0 to the control module 43;
accordingly, the control module 43 compares L' to L0;
if L' is less than L0, then one or all of the following adjustments are made: reducing the display brightness of the display content on the screen, and reducing the display proportion of the display content on the screen;
if L' is greater than L0, then one or all of the following adjustments are made: the display brightness of the display content on the screen is increased, and the display scale of the display content on the screen is increased.
Furthermore, the first and second electrodes are provided with,
the processing module 42 may be further configured to determine a line-of-sight focus area of the user on the screen according to the eye biometric information, and send the line-of-sight focus area to the control module 43;
accordingly, the control module 43 may be further configured to adjust a predetermined parameter of the display content in the focus area of the line of sight.
In particular, the amount of the solvent to be used,
the eye biometric information may further include: the distance D 'between two pupils and the direction of the pupil's sight;
the processing module 42 determines a sight line overlapping area of the two eyes of the user on the screen according to D ', the pupil sight line direction and L', and takes the sight line overlapping area as a sight line focus area.
Wherein,
for display content within the gaze focus area, the control module 43 may make one or all of the following adjustments:
increasing display brightness of display content in the gaze focus region;
increasing the display definition of the display content in the sight-line focus region;
the display scale of the display content in the sight-line focus region is increased.
In practical application, when a user needs to use the adjusting function of the present invention, an adjusting function opening instruction may be sent to the terminal in a certain manner, and accordingly, the terminal may periodically execute the adjusting function of the present invention, and when the adjusting function of the present invention is no longer needed, an adjusting function closing instruction may be sent to the terminal in a certain manner.
In addition, the display contents described in the present invention may include: video, pictures, text, etc., i.e., for a variety of different types of display content.
In a word, by adopting the scheme of the invention, the eye-screen distance between the eyes of the user and the screen can be determined according to the collected eye biological characteristic information of the user, and the preset parameters of the display content on the screen can be adjusted according to the eye-screen distance; compared with the prior art, the adjusting basis adopted in the scheme of the invention is more objective and accurate, thereby improving the accuracy of the adjusting result; moreover, on the basis of integrally adjusting the display content on the screen according to the eye screen distance, local fine adjustment can be further performed, so that a user can obtain better use experience; in addition, the scheme of the invention is simple and convenient to realize, thereby being convenient for popularization and promotion.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (14)
1. A method for adaptively adjusting display content of a terminal screen is characterized by comprising the following steps:
collecting eye biological characteristic information of a user;
determining an eye screen distance between the eyes of the user and the screen according to the eye biological characteristic information;
and adjusting preset parameters of display contents on the screen according to the eye-screen distance.
2. The method of claim 1,
the eye biometric information includes: the outer diameter of the iris R';
the determining the inter-ocular-screen distance according to the ocular biometric information comprises:
calculating a quotient A0 of a pre-acquired ideal iris outer edge diameter R0 and an ideal eye screen spacing L0;
and calculating the quotient L ' of the R ' and the A0, and taking the L ' as the determined eye screen distance.
3. The method of claim 1, wherein adjusting the predetermined parameter of the on-screen display according to the inter-eye distance comprises:
comparing the eye screen spacing L' with a pre-acquired ideal eye screen spacing L0;
if the L' is less than the L0, the adjustment includes one or all of: reducing the display brightness of the display content on the screen, and reducing the display scale of the display content on the screen;
if the L' is greater than the L0, the adjustment includes one or all of: increasing the display brightness of the display content on the screen, and increasing the display scale of the display content on the screen.
4. The method of claim 2, further comprising:
determining a sight focus area of a user on the screen according to the eye biological feature information;
and adjusting the preset parameters of the display content in the sight line focus area.
5. The method of claim 4,
the ocular biometric information further comprises: the distance D 'between two pupils and the direction of the pupil's sight;
the determining the gaze focal region according to the eye biometric information comprises:
and determining a sight line overlapping area of two eyes of the user on the screen according to the D ', the pupil sight line direction and the L', and taking the sight line overlapping area as the sight line focal area.
6. The method of claim 4, wherein the adjusting the predetermined parameter of the display content within the gaze focus area comprises one or all of:
increasing display brightness of display content within the gaze focus region;
increasing a display definition of display content within the gaze focus region;
increasing a display scale of display content within the gaze focus region.
7. The method of claim 1, 2, 4 or 5, wherein displaying the content comprises: video, pictures, text.
8. A terminal, comprising: the device comprises an image acquisition module, a processing module and a control module;
the image acquisition module is used for acquiring eye biological characteristic information of a user and sending the eye biological characteristic information to the processing module;
the processing module is used for determining the eye-screen distance between the eyes of the user and the screen of the terminal according to the eye biological characteristic information and sending the eye-screen distance to the control module;
and the control module is used for adjusting preset parameters of display contents on the screen according to the eye-screen distance.
9. The terminal of claim 8,
the eye biometric information includes: the outer diameter of the iris R';
the processing module calculates a ratio A0 of a pre-acquired ideal outer iris diameter R0 and an ideal eye screen spacing L0, and calculates a ratio L ' of the R ' and the A0, and takes the L ' as the determined eye screen spacing.
10. The terminal of claim 9,
the processing module is further configured to send the L0 to the control module;
the control module compares the L' to the L0;
if the L' is less than the L0, then one or all of the following adjustments are made: reducing the display brightness of the display content on the screen, and reducing the display scale of the display content on the screen;
if the L' is greater than the L0, then one or all of the following adjustments are made: increasing the display brightness of the display content on the screen, and increasing the display scale of the display content on the screen.
11. The terminal of claim 9,
the processing module is further used for determining a sight focus area of the user on the screen according to the eye biological characteristic information and sending the sight focus area to the control module;
the control module is further configured to adjust a predetermined parameter of the display content within the gaze focus area.
12. The terminal of claim 11,
the ocular biometric information further comprises: the distance D 'between two pupils and the direction of the pupil's sight;
and the processing module determines a sight line overlapping area of two eyes of the user on the screen according to the D ', the pupil sight line direction and the L', and takes the sight line overlapping area as the sight line focal area.
13. The terminal of claim 11,
for display content in the gaze focus area, the control module adjusts or all of:
increasing display brightness of display content within the gaze focus region;
increasing a display definition of display content within the gaze focus region;
increasing a display scale of display content within the gaze focus region.
14. A terminal as claimed in claim 8, 9, 11 or 12, wherein the display content comprises: video, pictures, text.
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