CN109599068A - A kind of VR equipment and its control method - Google Patents
A kind of VR equipment and its control method Download PDFInfo
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- CN109599068A CN109599068A CN201910103498.7A CN201910103498A CN109599068A CN 109599068 A CN109599068 A CN 109599068A CN 201910103498 A CN201910103498 A CN 201910103498A CN 109599068 A CN109599068 A CN 109599068A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
Abstract
The embodiment of the present invention provides a kind of VR equipment and its control method, technical field of virtual reality, can avoid the flicker problem occurred when the backlight of image scene quickly changes, improves the viewing experience of user.A kind of control method of VR equipment, comprising: judge each picture frame stage, wear the state of the user's head of the VR equipment；The state includes stationary state and moving condition two states；When the user's head for wearing the VR equipment is moving condition, judge whether the initial backlight value of the backlight subarea is less than or equal to first threshold；The first threshold is obtained based on Weber's law；If so, the initial backlight value to the backlight subarea is modified, to improve the backlight value of the backlight subarea.
Description
Technical field
The present invention relates to technical field of virtual reality more particularly to a kind of VR equipment and its control method.
Background technique
VR (Virtual Reality, virtual to show) refers to virtual Information application to real world, true environment
The same picture has been added in real time with virtual object or space exists simultaneously.
Summary of the invention
The embodiment of the present invention provides a kind of VR equipment and its control method, and the backlight that can avoid image scene quickly changes
When the flicker problem that occurs, improve the viewing experience of user.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
In a first aspect, providing a kind of control method of VR equipment, the VR equipment includes display screen, and the display screen includes
Backlight module, the backlight module include multiple backlight subareas.The control method of the VR equipment, comprising: judge each image
The frame stage wears the state of the user's head of the VR equipment；The state includes stationary state and moving condition two states；
When the user's head for wearing the VR equipment is moving condition, judge whether the initial backlight value of the backlight subarea is less than
In first threshold；The first threshold is obtained based on Weber's law；If so, the initial backlight value to the backlight subarea carries out
Amendment, to improve the backlight value of the backlight subarea.
Optionally, when the user's head for wearing the VR equipment is moving condition, judge the initial of the backlight subarea
Whether backlight value is less than or equal to first threshold, if so, the initial backlight value to the backlight subarea is modified, comprising: when
Wear the VR equipment user's head be moving condition when, for there are each of the 8 neighborhoods backlight subarea, traverse its 8
The initial backlight value of neighborhood obtains initial backlight maximum value therein；For there are each of the 8 neighborhoods backlight subarea, sentence
Whether the initial backlight value of the backlight subarea of breaking is less than or equal to first threshold；First threshold=LMAX×(1-C)；Wherein, LMAX
For the initial backlight maximum value in 8 neighborhoods of the backlight subarea, C is weber constant；If so, to the initial of the backlight subarea
Backlight value is modified, revised backlight valueL is the initial backlight of the backlight subarea
Value.
Optionally, it when initial backlight maximum value is less than 255 × K, sets the initial backlight maximum value and is equal to 255 × K,
0.4≥K≥0.2。
Optionally, the control method of the VR equipment further include: when the user's head for wearing the VR equipment is static
When state, for there are each of the 8 neighborhoods backlight subareas, the initial backlight value of its 8 neighborhood is traversed, is obtained therein first
Beginning backlight maximum value；For there are each of the 8 neighborhoods backlight subareas, the initial backlight value of the backlight subarea is judged
Whether first threshold is less than or equal to；First threshold=LMAX×(1-C)；Wherein, LMAXIt is first in 8 neighborhoods of the backlight subarea
Beginning backlight maximum value, C are weber constant；If so, being modified to the backlight value of the backlight subarea, revised backlight value L is the initial backlight value of the backlight subarea.
Optionally, it is being directed to there are each of the 8 neighborhoods backlight subarea, before the initial backlight value for traversing its 8 neighborhood,
The control method of the VR equipment further include: according to the backlight subarea, subregion is carried out to original image；According to original image
The grayscale value of all sub-pixes in each subregion is calculated with each subregion of original image one by one using error modification method
The initial backlight value of the corresponding backlight subarea.
Optionally, judge each picture frame stage, wear the state of the user's head of the VR equipment, comprising: each
In the picture frame stage, the mould of the multiple groups angular speed of angular-rate sensor measurement, is calculated the flat of the mould of angular speed based on the received
Mean value；According to the average value of the mould of the angular speed and the second threshold of setting, each picture frame stage is judged, described in wearing
The state of the user's head of VR equipment；Wherein, when the average value of the mould of the angular speed is greater than the second threshold, account is used
Portion is in moving condition；When the average value of the mould of the angular speed is less than or equal to the second threshold, user's head is in quiet
Only state.
Optionally, after the initial backlight value to the backlight subarea is modified, the control method of the VR equipment
Further include: using fuzzy-diffusion method, original image is smoothed.
On this basis, optionally, after being smoothed to original image, the control method of the VR equipment is also
It include: useThe grayscale value of each sub-pix of the original image is compensated.
Wherein, Yi,jFor the grayscale value for compensating preceding i-th row jth column sub-pix, Y 'i,jFor the i-th row jth column sub-pix after compensation
Grayscale value；BLfull=255, BL 'i,jBacklight after being smoothed for the corresponding backlight subarea of the i-th row jth column sub-pix
Value；γ is the gamma value of display.
Second aspect provides a kind of VR equipment, comprising: display panel and backlight module, the backlight module include multiple
Backlight subarea；The VR equipment further includes processor and memory, and the memory is for storing one or more programs；Work as institute
When stating one or more programs and being executed by the processor, the control method of above-mentioned VR equipment is realized.
Optionally, the VR equipment further includes angular-rate sensor, is configured to measurement angular velocity information.
The third aspect provides a kind of computer-readable medium, is stored thereon with computer program, the computer program quilt
When execution, the control method of above-mentioned VR equipment is realized.
The embodiment of the present invention provides a kind of VR equipment and its control method, by judging each picture frame stage, wears
The state of the user's head of VR equipment, and when judging the user's head of wearing VR equipment for moving condition, when backlight subarea
When initial backlight value is less than or equal to first threshold, the initial backlight value of the backlight subarea is modified, to improve the backlight point
The backlight value in area improves the viewing experience of user so that user be avoided to perceive scintillation when backlight value quickly changes.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of display screen provided in an embodiment of the present invention；
Fig. 2 is a kind of flow diagram of the control method of VR equipment provided in an embodiment of the present invention；
Fig. 3 is the flow diagram of the control method of another kind VR equipment provided in an embodiment of the present invention；
Fig. 4 is the flow diagram of the control method of another VR equipment provided in an embodiment of the present invention；
Fig. 5 is the flow diagram of the control method of another VR equipment provided in an embodiment of the present invention；
Fig. 6 is the flow diagram for the user's head state that VR equipment is worn in a kind of judgement provided in an embodiment of the present invention；
Fig. 7 is the flow diagram of the control method of another VR equipment provided in an embodiment of the present invention；
Fig. 8 is the flow diagram of the control method of another VR equipment provided in an embodiment of the present invention；
Fig. 9 is a kind of structural schematic diagram of VR equipment provided in an embodiment of the present invention；
Figure 10 is the structural schematic diagram of another kind VR equipment provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of control method of VR equipment, as shown in Figure 1, the VR equipment includes display screen, shows
Display screen includes display panel 10 and backlight module 20, and backlight module 20 includes multiple backlight subareas 201.
It is understood that in order to carry out backlight area control, as shown in Figure 1, can as needed draw backlight module 20
It is divided into multiple backlight subareas 201, each 201 independent control of backlight subarea, so that each backlight subarea 201 is with different brightness
It lights.
Optionally, the backlight in backlight subarea 201 can be light emitting diode (Light-Emitting Diode, letter
Claim LED).
Backlight module 20 shown in FIG. 1 is illustrated by taking 12 backlight subareas 201 as an example, specifically can according to the actual situation into
The number of row setting backlight subarea 201.Wherein, the number of backlight subarea 201 is more, is able to carry out finer region control
System.
Based on this, as shown in Fig. 2, the control method of above-mentioned VR equipment includes:
S10, judge each picture frame stage, wear the state of the user's head of VR equipment；Head state includes static shape
State and moving condition two states.
Since when user wears VR equipment, VR equipment can follow the movement of user's head and move, and therefore, pass through judgement
VR equipment remains static or moving condition, just can judge user's head state.It, can be by being set in VR equipment based on this
Detection part such as sensor, to detect the state of user's head.
Certainly, relative to the state for obtaining user's head above by indirect mode, can also come by other means
The state of user's head is directly acquired, specifically it is not limited here.
S20, when wear VR equipment user's head be moving condition when, judge that the initial backlight value of backlight subarea 201 is
It is no to be less than or equal to first threshold, if executing S30；First threshold is obtained based on Weber's law.
In the related technology, when the backlight module of VR equipment includes multiple backlight subareas, when user wears VR equipment viewing figure
When picture, image scene can follow the movement on head and change at any time, and rapid jumping can occur for the backlight value of corresponding backlight subarea,
There is scintillation.
The appearance of flicker problem is primarily due to backlight value, and rapid jumping causes from high to low or from low to high.For example,
Black sky areas corresponds to extremely low backlight value in starry sky image, and shining stars region corresponds to high backlight value, works as head
When mobile, star position changes, and corresponding backlight subarea 201 can undergo the rapid jumping from bright to dark, and it is existing to generate flashing
As.
It should be noted that the present invention uses account in each picture frame shown for display screen, when wearing VR equipment
When portion is in moving condition, if judging, the initial backlight value of backlight subarea 201 is less than or equal to first threshold, then it is assumed that the backlight point
Area 201 is dark space.Regardless of the previous image frame backlight subarea 201 is clear zone or dark space, the latter image frame backlight subarea 201
It is that clear zone or dark space by being modified to the backlight subarea 201 can avoid the backlight value of the backlight subarea 201 by height
Rapid jumping on earth or from low to high.
Before the variable quantity for the backlight variation front and back backlight value that according to Weber's law, human eye is perceived and backlight variation
The ratio of backlight value is one weber of constant, therefore, the backlight value before backlight changes the variable quantity of front and back backlight value and backlight changes
Ratio be less than this weber of constant when, human eye just can not perceive the variation of backlight, so as to avoid the generation of scintillation.Base
In this, by setting a biggish backlight value, as the backlight value before backlight variation, so as to calculate according to Weber's law
Backlight value to after backlight variation, and using the backlight value as first threshold.To the initial backlight value in backlight subarea 201
When greater than first threshold, it is believed that the rapid jumping human eye of backlight value can not perceive, and the initial backlight value in backlight subarea 201 is small
When being equal to first threshold, it is believed that the rapid jumping human eye of backlight value can perceive.
Above-mentioned backlight value that is to say brightness value.
S30, the initial backlight value of the backlight subarea 201 is modified, to improve the backlight value of the backlight subarea 201.
When the initial backlight value of backlight subarea 201 is less than or equal to first threshold, it is believed that the rapid jumping human eye of backlight value
It can perceive, i.e., human eye can experience scintillation, and therefore, it is necessary to the initial backlight values to the backlight subarea 201 to repair
Just, to improve the backlight value of the backlight subarea 201, so that user is avoided to perceive scintillation when backlight value quickly changes,
Improve the viewing experience of user.
When the initial backlight value of backlight subarea 201 is greater than first threshold, it is believed that the rapid jumping human eye of backlight value will not
It perceives, therefore, it may be unnecessary to the initial backlight value of backlight subarea 201 is modified, thus, the back of the backlight subarea 201
Light value still maintains initial backlight value.
The embodiment of the present invention provides a kind of control method of VR equipment, by judging each picture frame stage, wears VR
The state of the user's head of equipment, and when judging the user's head of wearing VR equipment for moving condition, when backlight subarea 201
When initial backlight value is less than or equal to first threshold, the initial backlight value of the backlight subarea 201 is modified, to improve the backlight
The backlight value of subregion 201 improves the viewing body of user so that user be avoided to perceive scintillation when backlight value quickly changes
It tests.
Optionally, as shown in figure 3, in above-mentioned S20 and S30, when the user's head for wearing the VR equipment is moving condition
When, judge whether the initial backlight value of the backlight subarea 201 is less than or equal to first threshold, if so, to the backlight subarea 201
Initial backlight value is modified, comprising:
S21, when wear VR equipment user's head be moving condition when, for there are each backlight subareas of 8 neighborhoods
201, the initial backlight value of its 8 neighborhood is traversed, initial backlight maximum value therein is obtained.
It will be understood by those skilled in the art that being for any 201,8 neighborhood of backlight subarea there are 8 neighborhoods, with the back
4, the upper and lower, left and right neighborhood of 201 face of light subregion adds the upper left corner, the upper right corner, the lower left corner, 4, lower right corner neighborhood.Base
In this, the embodiment of the present invention traverses the backlight subarea 201 of its 8 neighborhood, obtains for there are each backlight subareas 201 of 8 neighborhoods
This, is had altogether the back of 8 backlight subareas 201 by the initial backlight value of each backlight subarea 201 in 8 neighborhoods of the backlight subarea 201
Light value is compared, and obtains maximum value therein as initial backlight maximum value.
It should be noted that since human eye only can be from the backlight subarea 201 positioned at 20 edge of backlight module to the back at center
Light subregion 201 is mobile, therefore, can without to these edges there is no the backlight subareas 201 of 8 neighborhoods to traverse.
It is enhanced by correcting its backlight value in order to avoid there was only the dark areas near bright area when dark areas is numerous, and
Lead to the phenomenon that obviously demarcating occur, optionally, it is specified that setting the initial backlight when initial backlight maximum value is less than 255 × K
Maximum value is equal to 255 × K, 0.4 >=K >=0.2.
Wherein, which is obtained by experiment, and after repeated many experiments, discovery is worked as when initial backlight maximum value is small
When 255 × K, the initial backlight maximum value is set equal to 255 × K, can occur obviously demarcating when numerous to avoid dark areas
Phenomenon.
S22, for there are each backlight subarea 201 of 8 neighborhoods, judge the backlight subarea 201 initial backlight value whether
Less than or equal to first threshold, if so, executing S23；First threshold=LMAX×(1-C)；Wherein, LMAXFor the backlight subarea 201
8 neighborhoods in initial backlight maximum value, C be weber constant.
That is, for there are each backlight subarea 201 of 8 neighborhoods, by using the initial backlight maximum value in its 8 neighborhood as
One biggish backlight value L of settingMAX, to be based on Weber's law, (LMAX-T)/LMAX=C, is calculated T=LMAX×(1-
C).And the value of the T is first threshold.
For there are each backlight subareas 201 of 8 neighborhoods, when the initial backlight value of the backlight subarea 201 is greater than the first threshold
When value, illustrates that the initial backlight value of the backlight subarea 201 and the initial backlight maximum value difference in 8 neighborhoods are smaller, do not need to repair
Just.When the initial backlight value of the backlight subarea 201 is less than first threshold, illustrate the initial backlight value and 8 of the backlight subarea 201
Initial backlight maximum value difference in neighborhood is larger, needs to be modified the initial backlight value of the backlight subarea 201.
S23, the initial backlight value of backlight subarea 201 is modified, revised backlight value
L is the initial backlight value of the backlight subarea 201.
In view of when wear VR equipment user's head be stationary state when, be not present flicker problem, theoretically do not have to pair
The backlight value of backlight subarea 201 is modified, but in order to avoid head obvious become occurs by backlight when the quiet switching to dynamic state
Change, backlight value when in practical applications can also be to stationary state is finely adjusted, and then promotes contrast.
Based on this, the embodiment of the present invention provide VR equipment control method, as shown in Figure 4, further includes:
S41, when wear VR equipment user's head be stationary state when, for there are each backlight subareas of 8 neighborhoods
201, the initial backlight value of its 8 neighborhood is traversed, initial backlight maximum value therein is obtained.
It is enhanced by correcting its backlight value in order to avoid there was only the dark areas near bright area when dark areas is numerous, and
Lead to the phenomenon that obviously demarcating occur, optionally, it is specified that setting the initial backlight when initial backlight maximum value is less than 255 × K
Maximum value is equal to 255 × K, 0.4 >=K >=0.2.
S42, for there are each backlight subarea 201 of 8 neighborhoods, judge the backlight subarea 201 initial backlight value whether
Less than or equal to first threshold, if so, executing S43；First threshold=LMAX×(1-C)；Wherein, LMAXFor the backlight subarea 201
8 neighborhoods in initial backlight maximum value, C be weber constant.
For there are each backlight subareas 201 of 8 neighborhoods, when the initial backlight value of the backlight subarea 201 is greater than the first threshold
When value, illustrates that the initial backlight value of the backlight subarea 201 and the initial backlight maximum value difference in 8 neighborhoods are smaller, do not need to repair
Just.
S43, the backlight value of backlight subarea 201 is modified, revised backlight value
L is the initial backlight value of the backlight subarea 201.
Optionally, as shown in figure 5, traversing the initial back of its 8 neighborhood for there are each backlight subareas 201 of 8 neighborhoods
Before light value, the control method of the VR equipment further include:
S50, according to backlight subarea 201, subregion is carried out to original image.
Exemplary, when backlight module 20 as shown in Figure 1 includes 4 × 3 backlight subareas 201, original image can also be divided into 4
× 3 picture portions, the corresponding backlight subarea 201 of each picture portion.
S60, it is calculated according to the grayscale value of all sub-pixes in each subregion of original image using error modification method
To the initial backlight value with the one-to-one backlight subarea 201 of each subregion of original image.
Wherein, error modification method formula:Wherein, L is
Initial backlight value, LmaxFor grayscale maximum value in each backlight subarea 201 of correspondence, LavgIt is grey in each backlight subarea 201 of correspondence
Rank average value, LdifFor the difference functions of grayscale maximum value and grey scale average value in each backlight subarea 201 of correspondence.
The embodiment of the present invention uses error modification method, and the one-to-one backlight of each subregion with original image is calculated
The initial backlight value of subregion 201, wherein combine mean value method and maximum value process, the basis for retaining image global feature also on
Image detail is considered, the initial backlight value result being calculated is between average value and maximum value, for most of images
There are preferable display effect and fractional energy savings, wide usage is preferable.
Optionally, as shown in fig. 6, judging each picture frame stage in S10, the state of the user's head of VR equipment is worn,
Include:
S101, in each picture frame stage, the mould of the multiple groups angular speed of angular-rate sensor measurement, calculates based on the received
Obtain the average value of the mould of angular speed.
Wherein, angular-rate sensor can be integrated in VR equipment.
S102, according to the average value of the mould of angular speed and the second threshold of setting, judge each picture frame stage, wear
The state of the user's head of VR equipment；Wherein, when the average value of the mould of angular speed is greater than second threshold, user's head, which is in, is moved
Dynamic state；When the average value of the mould of angular speed is less than or equal to second threshold, user's head remains static.
If the average value of the mould of angular speed is greater than second threshold, judge to be in mobile shape on the picture frame stage head
State；If the average value of the mould of angular speed is less than or equal to second threshold, judge to remain static on the picture frame stage head.
For second threshold, can obtain in the following way:
Experimenter carries out static head, slow movement, fast moves by wearing VR equipment, and being repeated as many times, and records
Angular velocity information.Such as: user can keep the static certain time in head such as 10s when wearing VR equipment viewing certain point,
Angular-rate sensor in VR equipment records angular velocity information, which includes the angular speed in three directions of x, y, z.Again
The mobile certain time such as 15s in head is kept, head movement includes slowly mobile and fast moves, the angular speed in VR equipment
Sensor records angular velocity information.It is so repeated as many times after testing, according to the angular velocity information of record, compares under stationary state
The size of the mould of angular speed under the mould and motion state of angular speed, set a reasonable second threshold come distinguish stationary state with
Motion state.
Optionally, second threshold is set as 0.01.
On this basis, exemplary, it, can be based on the received before angular-rate sensor measurement in each picture frame stage
The mould of 5 groups of angular speed calculates the average value of the mould of angular speed.Based on this, when the average value of the mould of angular speed is greater than 0.01, then
Judge to be in moving condition on the picture frame stage head；When the average value of the mould of angular speed is less than or equal to 0.01, then judge
Moving condition is on the picture frame stage head.
Since the brightness of backlight subarea 201 is gradually dimmed from centre to surrounding, there are light diffusion phenomena, moreover, backlight point
The revised backlight value in area 201 is not fully identical, can have blockiness when displaying an image, therefore, in practical applications
It needs the backlight value to the revised backlight subarea 201 to be smoothed, simulates practical backlight situation, avoid piecemeal existing
As.
Based on this, as shown in fig. 7, after the initial backlight value to backlight subarea 201 is modified, the VR equipment
Control method further include:
S70, using fuzzy-diffusion method, original image is smoothed.
The principle of fuzzy-diffusion method is: borrowing low-pass filter and is smoothed to original image.
Specifically, after the backlight value of backlight subarea 201 is modified, according to the backlight value of each backlight subarea 201, and
Original image signal can carry out simulative display, and be based on the display image, borrow low-pass filter and smoothly located to the image
Reason.Calculation amount can be reduced using this method to a certain extent.
On this basis, optionally, as shown in figure 8, after being smoothed to original image, the VR equipment
Control method further include:
S80, useThe grayscale value of each sub-pix of original image is compensated.
The gamma effect for considering display (including display panel 10 and backlight module 20), in the base of linear penalty method
It joined the power operation that index is γ on plinth.Wherein, linear compensation method is simply considered that the final display brightness of display is back
It is that brightness is multiplied with original input picture brightness as a result, i.e. original image × all light backlight=compensation image × region backlight,
Corresponding formula are as follows: Yi,j×BLfull=Y 'i,j×BL′i,j。
On this basis, it joined the power operation that index is γ on the basis of linear penalty method, obtain
To obtain
Wherein, Yi,jFor the grayscale value for compensating preceding i-th row jth column sub-pix, Y 'i,jFor the i-th row jth column sub-pix after compensation
Grayscale value；BLfull=255, BL 'i,jIt is the corresponding backlight subarea 201 of the i-th row jth column sub-pix after being smoothed
Backlight value, γ be display gamma value.
Based on this, the grayscale value of each sub-pix of smoothed out original image is compensated, so as to back of arranging in pairs or groups
Light subregion 201 obtains better display effect.
It should be noted that the judgement of above-mentioned user's head state, backlight subarea 201 initial backlight value amendment,
The compensation of smoothing processing and grayscale value, before can occurring to show the stage in each picture frame stage.
The embodiments of the present invention also provide a kind of VR equipment, as shown in Figure 9, comprising: display screen, display screen include display
Panel 10 and backlight module 20, backlight module 20 include multiple backlight subareas 201；On this basis, VR equipment further includes processing
Device 30 and memory 40, memory 40 is for storing one or more programs；When one or more programs are executed by processor 30
When, realize the control method of above-mentioned VR equipment.
VR equipment provided in an embodiment of the present invention has effect identical with the control method of above-mentioned VR equipment, herein no longer
It repeats.
Optionally, as shown in Figure 10, VR equipment further includes angular-rate sensor 50, is configured to measurement angular velocity information.
By the way that angular-rate sensor 50 is arranged in VR equipment, angular speed letter can be measured by the angular-rate sensor 50
Breath, thus to judge user's head state.
The embodiments of the present invention also provide a kind of computer-readable mediums, are stored thereon with computer program, computer
Program is performed, and realizes the control method of above-mentioned VR equipment.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above method embodiment can pass through
The relevant hardware of program instruction is completed, and program above-mentioned can be stored in a computer readable storage medium, the program
When being executed, step including the steps of the foregoing method embodiments is executed；And storage medium above-mentioned includes: ROM, RAM, magnetic disk or light
The various media that can store program code such as disk.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (11)
1. a kind of control method of VR equipment, which is characterized in that the VR equipment includes display screen, and the display screen includes backlight
Mould group, the backlight module include multiple backlight subareas；
The control method of the VR equipment, comprising:
Judge each picture frame stage, wears the state of the user's head of the VR equipment；The state include stationary state and
Moving condition two states；
When the user's head for wearing the VR equipment is moving condition, judge whether the initial backlight value of the backlight subarea is small
In equal to first threshold；The first threshold is obtained based on Weber's law；
If so, the initial backlight value to the backlight subarea is modified, to improve the backlight value of the backlight subarea.
2. the control method of VR equipment according to claim 1, which is characterized in that use account when the wearing VR equipment
When portion is moving condition, judge whether the initial backlight value of the backlight subarea is less than or equal to first threshold, if so, to described
The initial backlight value of backlight subarea is modified, comprising:
When the user's head for wearing the VR equipment is moving condition, for there are each of the 8 neighborhoods backlight subarea, time
The initial backlight value for going through its 8 neighborhood obtains initial backlight maximum value therein；
For there are each of the 8 neighborhoods backlight subareas, judge whether the initial backlight value of the backlight subarea is less than or equal to
First threshold；First threshold=LMAX×(1-C)；Wherein, LMAXFor the initial backlight maximum value in 8 neighborhoods of the backlight subarea, C
For weber constant；
If so, the initial backlight value to the backlight subarea is modified, revised backlight value
L is the initial backlight value of the backlight subarea.
3. the control method of VR equipment according to claim 2, which is characterized in that when initial backlight maximum value is less than 255
When × K, the initial backlight maximum value is set equal to 255 × K, 0.4 >=K >=0.2.
4. the control method of VR equipment according to claim 1-3, which is characterized in that further include:
When the user's head for wearing the VR equipment is stationary state, for there are each of the 8 neighborhoods backlight subarea, time
The initial backlight value for going through its 8 neighborhood obtains initial backlight maximum value therein；
For there are each of the 8 neighborhoods backlight subareas, judge whether the initial backlight value of the backlight subarea is less than or equal to
First threshold；First threshold=LMAX×(1-C)；Wherein, LMAXFor the initial backlight maximum value in 8 neighborhoods of the backlight subarea, C
For weber constant；
If so, being modified to the backlight value of the backlight subarea, revised backlight value
L is the initial backlight value of the backlight subarea.
5. the control method of VR equipment according to claim 2, which is characterized in that for there are each institutes of 8 neighborhoods
Backlight subarea is stated, before the initial backlight value for traversing its 8 neighborhood, the control method of the VR equipment further include:
According to the backlight subarea, subregion is carried out to original image；
According to the grayscale value of all sub-pixes in each subregion of original image, using error modification method, be calculated with it is original
The initial backlight value of each subregion of image backlight subarea correspondingly.
6. the control method of VR equipment according to claim 1, which is characterized in that judge each picture frame stage, wear
The state of the user's head of the VR equipment, comprising:
In each picture frame stage, the mould of the multiple groups angular speed of angular-rate sensor measurement, is calculated angle speed based on the received
The average value of the mould of degree；
According to the average value of the mould of the angular speed and the second threshold of setting, each picture frame stage is judged, described in wearing
The state of the user's head of VR equipment；
Wherein, when the average value of the mould of the angular speed is greater than the second threshold, user's head is in moving condition；Work as institute
When stating the average value of the mould of angular speed less than or equal to the second threshold, user's head remains static.
7. the control method of VR equipment according to claim 1, which is characterized in that in the initial back to the backlight subarea
After light value is modified, the control method of the VR equipment further include:
Using fuzzy-diffusion method, original image is smoothed.
8. the control method of VR equipment according to claim 7, which is characterized in that be smoothed to original image
Later, the control method of the VR equipment further include:
UsingThe grayscale value of each sub-pix of the original image is compensated；
Wherein, Yi,jFor the grayscale value for compensating preceding i-th row jth column sub-pix, Yi,′jFor the ash of the i-th row jth column sub-pix after compensation
Rank value；BLfull=255, BLi′,jBacklight value after being smoothed for the corresponding backlight subarea of the i-th row jth column sub-pix；
γ is the gamma value of display.
9. a kind of VR equipment characterized by comprising display screen, the display screen include backlight module, the backlight module packet
Include multiple backlight subareas；
The VR equipment further includes processor and memory, and the memory is for storing one or more programs；When described one
When a or multiple programs are executed by the processor, the control method such as the described in any item VR equipment of claim 1-8 is realized.
10. VR equipment according to claim 9, which is characterized in that further include angular-rate sensor, be configured to measurement angle speed
Spend information.
11. a kind of computer-readable medium, is stored thereon with computer program, which is characterized in that the computer program is held
When row, the control method such as the described in any item VR equipment of claim 1-8 is realized.
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