CN110211543A - Local backlight adjusting method and device, virtual reality system - Google Patents
Local backlight adjusting method and device, virtual reality system Download PDFInfo
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- CN110211543A CN110211543A CN201910618017.6A CN201910618017A CN110211543A CN 110211543 A CN110211543 A CN 110211543A CN 201910618017 A CN201910618017 A CN 201910618017A CN 110211543 A CN110211543 A CN 110211543A
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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
Abstract
The embodiment of the present invention provides a kind of local backlight adjusting method and device, virtual reality system.Local backlight adjusting method includes: to receive a frame input picture；According to pre-set label template, the input picture is processed into the grid image including multiple anti-fault image units and multiple black picture elements；The backlight adjusting data for obtaining the multiple anti-fault image unit are calculated by backlight, the backlight for setting the multiple black picture elements adjusts data.The present invention is by introducing label template, anti- fault image and the black image in input picture are separated using label template, when then carrying out backlight calculating, backlight calculating only is carried out to anti-fault image, and backlight is directly set to black image and adjusts data, computation complexity is effectively reduced, calculation amount is reduced, improves treatment effeciency.
Description
Technical field
The present invention relates to technical field of virtual reality, and in particular to a kind of local backlight adjusting method and device, virtual existing
Real system.
Background technique
Liquid crystal display (Liquid Crystal Display, LCD) has been widely used in tablet computer, TV or mobile phone
In equal electronic products, in order to reduce power consumption and display picture contrast is improved, liquid crystal display introduces local backlight adjusting
(Local Dimming) technology.Studies have shown that straight-down negative light emitting diode (Light-Emitting Diode, LED) backlight is taken
With Local Dimming technology, power consumption can be greatly lowered, improve display picture reduced value, gray number and reduce ghost etc..
Local Dimming technology is by handling input picture, according to each LED of brightness regulation direct-type backlight of image
Brightness, while adjusting the grayscale value of each pixel of LCD, improve the brightness of high bright part in image, reduce dark-part in image
Brightness, reach optimal contrast.
It applies currently, Local Dimming technology has begun in virtual reality (Virtual Reality, VR) system
In, it is specifically used for VR and renders process.VR rendering is extremely important for the content that VR system is shown, not only needs to render left and right
Two high-resolution images of eye, will also have the real-time output of frame frequency 90Hz.Although practical application shows Local
Dimming has the characteristics that be easily achieved, effect is obvious, but since Local Dimming technology is needed to each backlight sub-district
It is all calculated, calculates complexity and calculation amount is larger, substantially increase the computation burden of VR rendering, VR rendering process is caused to deposit
In biggish delay, the display quality of VR image is reduced, the experience of user is affected.
Therefore, how to reduce using Local Dimming technology VR rendering process larger delay, be this field urgently
The technical issues of solution.
Summary of the invention
The embodiment of the present invention is the technical problem to be solved is that, provide a kind of local backlight adjusting method and device, virtual
Reality system, to solve the problems, such as the existing VR rendering process using Local Dimming technology, there are larger delays.
In order to solve the above-mentioned technical problem, the embodiment of the invention provides a kind of local backlight adjusting methods, comprising:
Receive a frame input picture；
According to pre-set label template, the input picture is processed into including multiple anti-fault image units and more
The grid image of a black picture elements；
The backlight adjusting data for obtaining the multiple anti-fault image unit are calculated by backlight, set the multiple black
The backlight of elementary area adjusts data.
Optionally, mark line and grid lines are provided in the label template, the size and shape of the mark line and anti-
The size and shape on distortion boundary is identical, and the label template is divided into multiple grids by the grid lines, and each grid is limited
Fixed region corresponds to a backlight sub-district of backlight module and a display point of display panel as an elementary area
Area.
Optionally, according to pre-set label template, the input picture is processed into including multiple anti-fault images
The grid image of unit and multiple black picture elements, comprising:
Grid where mark line is not provided with data in the label template, forms multiple boundary image units, the multiple
Boundary image unit forms the Boundary Loop of closure；Grid in the label template within mark line, is configured to input picture
The data of corresponding position form multiple anti-fault image units；Grid in the label template except mark line, is set defeated
The data for entering image corresponding position form multiple black picture elements.
Optionally, it is calculated by backlight and obtains the backlight of the multiple anti-fault image unit and adjust data, described in setting
The backlight of multiple black picture elements adjusts data, including executes following processing to all elementary areas:
Read i-th of elementary area；Judge whether i-th of elementary area is anti-fault image unit, is then to institute
It states i-th of elementary area and carries out backlight calculating and display compensation calculation, obtain the backlight data of i-th of elementary area
With display offset data, it is sent to storage unit；Otherwise backlight value=0 of i-th of elementary area backlight data is set, if
Gray value=0 that i-th of elementary area shows offset data is set, storage unit is sent to.
Optionally, backlight calculating and display compensation calculation are carried out to i-th of elementary area, comprising:
Backlight calculating is carried out to i-th of elementary area, obtains backlight data；
Display compensation calculation is carried out to i-th of elementary area based on the backlight data, obtains display compensation
Data.
Optionally, further includes:
Generate the backlight data and display offset data of this frame；
Backlight is sent respectively to according to vertical synchronizing signal, while by the backlight data of this frame and display offset data
Driving circuit and display driver circuit.
In order to solve the above-mentioned technical problem, the embodiment of the invention also provides a kind of local backlight regulating devices, comprising:
Receiving module, for receiving a frame input picture；
Formwork module, for according to pre-set label template, the input picture to be processed into including multiple anti-abnormal
Become the grid image of elementary area and multiple black picture elements；
Processing module, for calculating the backlight adjusting data for obtaining the multiple anti-fault image unit by backlight, also
Backlight for setting the multiple black picture elements adjusts data.
Optionally, mark line and grid lines are provided in the label template, the size and shape of the mark line and anti-
The size and shape on distortion boundary is identical, and the label template is divided into multiple grids by the grid lines, and each grid is limited
Fixed region corresponds to a backlight sub-district of backlight module and a display point of display panel as an elementary area
Area.
Optionally, the formwork module is specifically used for, and grid where mark line is not provided with data, shape in the label template
At multiple boundary image units, the multiple boundary image unit forms the Boundary Loop of closure；Mark line in the label template
Within grid, be configured to the data of input picture corresponding position, form multiple anti-fault image units；The label template
The data of input picture corresponding position are set in grid except middle mark line, form multiple black picture elements.
Optionally, the processing module includes judging unit, computing unit, setup unit and storage unit,
Judging unit judges whether i-th of elementary area is anti-fault image for reading i-th of elementary area
Unit is then to send computations to computing unit, otherwise sends setting instruction to setup unit；
Computing unit, for carrying out backlight calculating to i-th of elementary area and showing according to the computations
Show compensation calculation, obtains the backlight data and display offset data of i-th of elementary area, be sent to storage unit；
Setup unit, for according to the setting instruct, setting i-th of elementary area backlight data backlight value=
0, gray value=0 that i-th of elementary area shows offset data is set, storage unit is sent to；
Storage unit, for storing the backlight data and display offset data of i-th of elementary area.
Optionally, the computing unit include backlight computation subunit and display compensation calculation subelement,
Backlight computation subunit obtains backlight and sets for carrying out backlight calculating to i-th of elementary area
Fixed number evidence；
Compensation calculation subelement is shown, for showing based on the backlight data to i-th of elementary area
Show compensation calculation, obtains display offset data.
It optionally, further include generation module and sending module,
Generation module, for generating the backlight data and display offset data of this frame；
Sending module is used for according to vertical synchronizing signal, while by the backlight data of this frame and showing offset data
It is sent respectively to backlight drive circuit and display driver circuit.
The embodiment of the invention also provides a kind of virtual reality systems, including local backlight regulating device as described above.
The embodiment of the invention also provides a kind of medium, it is stored thereon with the computer program that can be run on a processor,
The computer program realizes the step of local backlight adjusting method as described above when being executed by the processor.
Local backlight adjusting method and device, virtual reality system provided by the embodiment of the present invention are marked by introducing
Input picture is processed into grid image using label template, by the anti-fault image and black image in input picture by template
It separates, when then carrying out backlight calculating, backlight calculating only is carried out to anti-fault image, and backlight is directly arranged to black image
Data are adjusted, computation complexity is effectively reduced, reduces calculation amount, improve treatment effeciency.Referring now to the prior art, this hair
It is bright can reduce 10%~20% calculation amount, save at least 10% processing time, effectively overcome existing using Local
There is larger delay in the VR rendering process of Dimming technology.
Certainly, implement any of the products of the present invention or method it is not absolutely required at the same reach all the above excellent
Point.Other features and advantages of the present invention will illustrate in subsequent specification embodiment, also, partly implement from specification
It is become apparent in example, or understand through the implementation of the invention.The purpose of the embodiment of the present invention and other advantages can pass through
Specifically noted structure is achieved and obtained in the specification, claims and drawings.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this
The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.Attached drawing
In the shapes and sizes of each component do not reflect actual proportions, purpose is schematically illustrate the content of present invention.
Fig. 1 is the flow chart of local backlight of embodiment of the present invention adjusting method；
Fig. 2 is that VR system pre-processes the schematic diagram to form intermediate image；
Fig. 3 is the schematic diagram that input picture is processed into grid image by the embodiment of the present invention；
Fig. 4 is the implementation flow chart that local backlight of the embodiment of the present invention is adjusted；
Fig. 5 is that local backlight of the embodiment of the present invention adjusts the implementation flow chart for being applied to VR rendering.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawings and examples.Following embodiment
For illustrating the present invention, but it is not intended to limit the scope of the invention.It should be noted that in the absence of conflict, the application
In embodiment and embodiment in feature can mutual any combination.
There are problems that larger delay using the VR rendering process of Local Dimming technology existing, the present invention is real
It applies example and provides a kind of solution that local backlight is adjusted.Fig. 1 is the process of local backlight of embodiment of the present invention adjusting method
Figure, as shown in Figure 1, local backlight adjusting method of the embodiment of the present invention includes:
S1, a frame input picture is received；
S2, according to pre-set label template, the input picture is processed into including multiple anti-fault image units
With the grid image of multiple black picture elements；
S3, the backlight adjusting data for obtaining the multiple anti-fault image unit are calculated by backlight, set the multiple
The backlight of black picture elements adjusts data.
With the continuous development of computer technology, Virtual Reality system is increasingly becoming a kind of important of people's life & amusement
Tool.In the optical lens of existing VR equipment, since human eye is as system emergent pupil, and have big visual field show, therefore lens at
As process needs to consider pincushion distortion.Pincushion distortion refers to normal image after lens, and seen by person is one as pillow
The image of first sample.Current processing mode is to be pre-processed using software to video or image source, is made by pretreatment
One normal image becomes a tubbiness image, and such tubbiness image is after the pincushion distortion by lens, and human eye is just
It can see normal image.Wherein, preprocessing process is referred to as anti-distortion processing.Since VR system is that nearly eye is shown, human eye meeting
Near focal point region is concentrated on, the display content far from focus area will not be paid close attention to too much, therefore existing pretreatment is all by
Between image as display content.Fig. 2 is that VR system pre-processes the schematic diagram to form intermediate image, as shown in Fig. 2, scheming for input
Intermediate image boundary (shown in dotted line frame) is only carried out anti-distortion processing with the image of inner region, which is made by picture, pretreatment
For the primary picture content for display, and intermediate image boundary is arranged to black, no image information with exterior domain.The present invention
In embodiment, intermediate image boundary is referred to as anti-fault image with the image of inner region, by intermediate image boundary with exterior domain
Black be referred to as black image, intermediate image boundary is referred to as anti-distortion boundary.It is whole for the VR system of complete machine form
The optical texture of a system is it has been determined that its anti-distortion form has also been formed by anti-distortion boundary it has been determined that pre-processing
It determines.Therefore, the embodiment of the present invention first gets anti-distortion boundary from VR system before carrying out local backlight adjusting processing,
And stored, as pre-set processing parameter.
The received frame input pictures of step of embodiment of the present invention S1 institute, be by the pretreated image of VR system,
Including being located at the anti-fault image of intermediate region and positioned at the black image of anti-fault image peripheral region.Then, in step
In S2, according to pre-set label template, the input picture is processed into including anti-fault image unit and black image
The grid image of unit.Specifically, the embodiment of the present invention presets a label mould according to the anti-distortion boundary known in advance
Plate marks in template and is provided with mark line and grid lines.Wherein, it marks the size of template identical as the size of input picture, marks
Remember that the size and shape of mark line is identical as the anti-distortion size and shape on boundary in template, grid lines will mark template to be divided into
M*N regularly arranged grid, region defined by each grid correspond to backlight module as an elementary area
A backlight sub-district, corresponding to a display subregion of display panel, M and N are the positive integer greater than 1.That is, back
Optical mode group is also divided into M*N regularly arranged backlight sub-district, and display panel is also divided into M*N regularly arranged display
Subregion, display subregion and backlight sub-district correspond, i.e., in the direction perpendicular to display panel, it is one-to-one show subregion and
The projection of backlight sub-district is overlapped.It include multiple LED in each backlight sub-district, each display subregion includes multiple pixels.
In this way, being handled according to label template input picture, a frame input picture can be processed into including M*N
The grid image of elementary area.Wherein, grid where mark line in template is marked, data is not provided with, forms the more of grid image
A boundary image unit, thus multiple boundary image units form the Boundary Loop of closure.Mark the net in template within mark line
Lattice are configured to the data of input picture corresponding position, since input picture corresponding position is anti-fault image data, thus shape
At multiple anti-fault image units.The grid in template except mark line is marked, the number of input picture corresponding position is also set
According to, since input picture corresponding position is black data, thus the multiple black picture elements of formation.
Fig. 3 is the schematic diagram that input picture is processed into grid image by the embodiment of the present invention, as shown in figure 3, left side in figure
Graphical representation input picture, intermediate pattern are the label template for including mark line and grid lines, and right figure is indicated according to label
The grid image that template obtains after handling input picture.The grid image includes M*N elementary area, M*N image
Unit includes multiple anti-fault image units, multiple black picture elements and multiple boundary image units, multiple boundary image lists
Member forms the annular boundary ring of closure, and multiple anti-fault image units are located within Boundary Loop, and multiple black picture elements are located at
Except Boundary Loop.
The grid image including multiple anti-fault image units and multiple black picture elements obtained according to abovementioned steps,
Each elementary area is obtained with for the display offset data of input picture compensation and the backlight for controlling the backlight brightness
Set data.Wherein, the embodiment of the present invention only carries out backlight calculating to multiple anti-fault image units, is calculated and is obtained by backlight
The backlight of anti-fault image unit adjusts data, and is calculated without backlight multiple black picture elements, passes through assignment mode
The backlight for directly setting black picture elements adjusts data, finally obtains all elementary area backlights and adjusts data.
In the embodiment of the present invention, step S3 executes following processing to all elementary areas:
S31, i-th of elementary area is read, wherein i=1~M*N；
S32, judge whether i-th of elementary area is anti-fault image unit, be to then follow the steps S33, otherwise hold
Row step S34；
S33, backlight calculating being carried out to i-th of elementary area, the backlight for obtaining i-th of elementary area adjusts data,
Execute step S35；
S34, backlight value=0 that i-th of elementary area backlight data is arranged are arranged i-th of elementary area and show benefit
Gray value=0 of data is repaid, step S35 is executed；
S35, the backlight adjusting data of i-th of elementary area are sent to storage unit.
Wherein, it includes that backlight calculates and show compensation calculation that backlight, which calculates, and it includes backlight that backlight, which adjusts data,
Data and display offset data, backlight data are used to set the brightness of backlight module, and display offset data is used for input
Image carries out grey level compensation.
Wherein, backlight calculating is carried out to i-th of elementary area in step S33, comprising:
S331, backlight calculating is carried out to i-th of elementary area, obtains backlight data；
S332, display compensation calculation is carried out to i-th of elementary area based on the backlight data, is shown
Offset data.
Since grid image is that each elementary area by M*N grid protocol, in grid image can use grid
Coordinate (x, y) uniquely determines, for example, the mesh coordinate of the elementary area of the 4th row in grid image, the 10th column can be identified as
Elementary area (4,10).In this way, for any one elementary area of grid image, it can be according to the grid of boundary image unit
It is anti-fault image unit or black picture elements that coordinate, which directly determines the elementary area,.Therefore, step S31 is read i-th
After elementary area, while the mesh coordinate of i-th of elementary area can be obtained, according to the mesh coordinate of boundary image unit
Judge that i-th of elementary area is anti-fault image unit either black picture elements.
If i-th of elementary area is anti-fault image unit, illustrate that the elementary area can be used as picture material to user
Display, it is therefore desirable to carry out backlight calculating and display compensation calculation, backlight meter first is carried out to i-th of elementary area
It calculates, obtains backlight data, be then based on the backlight data and elementary area is handled, obtain based on backlight
The backlight data being calculated and display offset data are then sent to storage unit by the display offset data of data.
If i-th of elementary area is not anti-fault image unit, illustrate that the elementary area is black picture elements, is in user's sight
Periphery, therefore do not need carry out backlight calculating and show compensation calculation, directly by the backlight of i-th of elementary area
Data are set as backlight value=0, i.e., closing LED, directly by the display offset data of i-th of elementary area be set as gray value=
0, i.e. black, are then sent to storage unit for backlight value=0 and gray value=0.
By repeating above-mentioned processing, the backlight that can be obtained all elementary areas adjusts data.Finally, when storage is single
After member receives the backlight data and display offset data of all elementary areas, generates the backlight data of this frame and show
Show offset data, according to vertical synchronization (Vsync) signal, the backlight data of this frame is sent to backlight drive circuit, together
When the display offset data of this frame is sent to display driver circuit, backlight drive circuit adjusts backlight according to backlight data
The brightness of each backlight sub-district in mould group, display driver circuit compensate processing to input picture according to display offset data,
Realize that local backlight is adjusted.Wherein, the brightness for adjusting backlight sub-district is mainly to adjust the brightness of corresponding LED, to input picture into
Row compensation deals are mainly the gray value for adjusting respective pixel.
In the embodiment of the present invention, backlight calculating and display compensation calculation are carried out to each elementary area, can be used
Existing Local Dimming method.For example, backlight calculating can be, the luminance parameter of elementary area is first obtained, then root
According to luminance parameter decision backlight value, i.e. backlight data.Display compensation calculation can be, according to the backlight being calculated
Setting value and backlight point Diffusion Law calculate the grayscale value that each pixel should be shown in elementary area, that is, show offset data,
To reach the display effect of more high dynamic contrast range with backlight illumination cooperation.Have in existing Local Dimming method
Closing backlight calculates and shows compensation calculation for known to those skilled in the art, which is not described herein again.
Fig. 4 is the implementation flow chart that local backlight of the embodiment of the present invention is adjusted.As shown in figure 4, local backlight adjusting includes:
S101, a frame input picture is received；
S102, according to pre-set label template, the input picture is processed into the net including M*N elementary area
Table images；
S103, setting i=1；
S104, i-th of elementary area is read, judges whether i-th of elementary area is anti-fault image unit, is then
Step S105 is executed, it is no to then follow the steps S106；
S105, backlight calculating and display compensation calculation are carried out to i-th of elementary area, obtain i-th of image
The backlight data and display offset data of unit, execute step S107；
Backlight value=0 of S106, setting i-th of elementary area backlight data, are arranged i-th of image list
Gray value=0 of member display offset data, executes step S107；
S107, the backlight data of i-th of elementary area of storage and display offset data；
S108, judge whether i is less than M*N, be to then follow the steps S109, it is no to then follow the steps S110；
S109, setting i=i+1, execute step S104；
S110, backlight data and display offset data according to all elementary areas, generate the backlight of this frame
Data and display offset data；According to vertical synchronization (Vsync) signal, the backlight data of this frame are sent to backlight drive
Circuit, while the display offset data of this frame is sent to display driver circuit.
It can be seen that the embodiment of the present invention by introducing label template by above-mentioned introduction, will be inputted using label template
Image procossing separates anti-fault image and the black image in input picture at grid image, is then carrying out backlight calculating
When, backlight calculating and display compensation calculation only are carried out to anti-fault image, and backlight is directly arranged to black image
Data and display offset data, thus computation complexity is effectively reduced, calculation amount is reduced, treatment effeciency is improved.For
Input picture, usual anti-fault image account for about the 80%~90% of input picture, black image account for about input picture 10%~
20%, thus relative to the existing processing method calculated each backlight sub-district, the present invention can reduce 10%~
20% calculation amount saves at least 10% processing time, effectively overcomes the VR rendering stream using Local Dimming technology
Latency issue existing for journey.
Fig. 5 is that local backlight of the embodiment of the present invention adjusts the implementation flow chart for being applied to VR rendering.As shown in figure 5, VR wash with watercolours
Dye processing specifically includes:
S201, the optical texture information for obtaining VR system；
S202, posture position data are obtained by peripheral hardware；
S203, rendering binocular images；
S204, to binocular images respectively it is counter distorted and time planning (TimeWrap) handle；
S205, local backlight adjusting processing is carried out；
S206, according to Vsync signal, backlight data are sent to backlight drive circuit, will display offset data hair
Give display driver circuit.
Wherein, step S205 is using local backlight of embodiment of the present invention adjusting method to by anti-distortion, treated
Image is handled.
Based on the technical concept of aforementioned local backlight adjusting method, the embodiment of the invention also provides a kind of local backlight tune
Regulating device.Local backlight regulating device of the embodiment of the present invention includes:
Receiving module, for receiving a frame input picture；
Formwork module, for according to pre-set label template, the input picture to be processed into including multiple anti-abnormal
Become the grid image of elementary area and multiple black picture elements；
Processing module, for calculating the backlight adjusting data for obtaining the multiple anti-fault image unit by backlight, also
Backlight for setting the multiple black picture elements adjusts data.
Wherein, be provided with mark line and grid lines in the label template, the size and shape of the mark line with it is anti-abnormal
The size and shape of variable boundary is identical, and the label template is divided into multiple grids by the grid lines, and each grid is limited
Region as an elementary area, corresponding to a backlight sub-district of backlight module and a display subregion of display panel.
Wherein, the formwork module is specifically used for, and grid where mark line is not provided with data in the label template, is formed
Multiple boundary image units, the multiple boundary image unit form the Boundary Loop of closure；In the label template mark line it
Interior grid is configured to the data of input picture corresponding position, forms multiple anti-fault image units；In the label template
The data of input picture corresponding position are set in grid except mark line, form multiple black picture elements.
In the embodiment of the present invention, the processing module includes judging unit, computing unit, setup unit and storage unit,
Wherein:
Judging unit judges whether i-th of elementary area is anti-fault image for reading i-th of elementary area
Unit is then to send computations to computing unit, otherwise sends setting instruction to setup unit；
Computing unit, the computations for being sent according to judging unit carry out backlight to i-th of elementary area and set
Devise a stratagem is calculated and display compensation calculation, obtains the backlight data and display offset data of i-th of elementary area, is sent to storage
Unit；
Setup unit, the setting instruction for being sent according to judging unit, is arranged i-th of elementary area backlight data
Backlight value=0, gray value=0 that i-th elementary area shows offset data is set, storage unit is sent to；
Storage unit, for storing the backlight data and display offset data of i-th of elementary area.
In the embodiment of the present invention, the computing unit includes that backlight computation subunit and display compensation calculation are single
Member, wherein
Backlight computation subunit obtains backlight and sets for carrying out backlight calculating to i-th of elementary area
Fixed number evidence；
Compensation calculation subelement is shown, for showing based on the backlight data to i-th of elementary area
Show compensation calculation, obtains display offset data.
In the embodiment of the present invention, local backlight regulating device further includes generation module and sending module, wherein
Generation module, for generating the backlight data and display offset data of this frame；
Sending module, for according to vertical synchronizing signal, the backlight data of this frame to be sent to backlight drive circuit,
The display offset data of this frame is sent to display driver circuit.
Concrete processing procedure in relation to local backlight regulating device, in aforementioned local backlight adjusting method specifically
Bright, which is not described herein again.
Technical concept based on previous embodiment, the embodiment of the invention also provides a kind of virtual reality system, the void
Quasi- reality system includes local backlight regulating device above-mentioned.
Technical concept based on previous embodiment, the embodiment of the invention also provides a kind of medium, being stored thereon with can be
The computer program run on processor, the computer program realize local backlight tune above-mentioned when being executed by the processor
The step of section method.
In the description of the embodiment of the present invention, it is to be understood that term " middle part ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom" "inner", "outside" be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the description of the embodiment of the present invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The shape for the computer program product implemented in usable storage medium (including but not limited to magnetic disk storage and optical memory etc.)
Formula.
The present invention be referring to according to the method for the embodiment of the present invention, the flow chart of equipment and computer program product and/or
Block diagram describes.It should be understood that can be requested by computer program each process in implementation flow chart and/or block diagram and/or
The combination of process and/or box in box and flowchart and/or the block diagram.It can provide the request of these computer programs to arrive
General purpose computer, special purpose computer, Embedded Processor or other programmable information processing equipments processor to generate one
Machine, so that being generated by the request that computer or the processor of other programmable information processing equipments execute for realizing flowing
The device for the function of being specified in journey figure one process or multiple processes and/or block diagrams one box or multiple boxes.
The request of these computer programs, which may also be stored in, is able to guide computer or other programmable information processing equipments with spy
Determine in the computer-readable memory that mode works, so that it includes asking that request stored in the computer readable memory, which generates,
Seek the manufacture of device, the request unit realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
The request of these computer programs can also be loaded into computer or other programmable information processing equipments, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The request executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although disclosed herein embodiment it is as above, the content only for ease of understanding the present invention and use
Embodiment is not intended to limit the invention.Technical staff in any fields of the present invention is taken off not departing from the present invention
Under the premise of the spirit and scope of dew, any modification and variation, but the present invention can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (14)
1. a kind of local backlight adjusting method characterized by comprising
Receive a frame input picture；
According to pre-set label template, the input picture is processed into including multiple anti-fault image units and multiple black
The grid image of color elementary area；
The backlight adjusting data for obtaining the multiple anti-fault image unit are calculated by backlight, set the multiple black image
The backlight of unit adjusts data.
2. local backlight adjusting method according to claim 1, which is characterized in that be provided with label in the label template
Line and grid lines, the size and shape of the mark line is identical as the anti-distortion size and shape on boundary, and the grid lines is by institute
It states label template and is divided into multiple grids, region defined by each grid corresponds to backlight mould as an elementary area
One backlight sub-district of group and a display subregion of display panel.
3. local backlight adjusting method according to claim 2, which is characterized in that according to pre-set label template,
The input picture is processed into the grid image including multiple anti-fault image units and multiple black picture elements, comprising:
Grid where mark line is not provided with data in the label template, forms multiple boundary image units, the multiple boundary
Elementary area forms the Boundary Loop of closure；Grid in the label template within mark line, it is corresponding to be configured to input picture
The data of position form multiple anti-fault image units；Grid in the label template except mark line, is set input figure
As the data of corresponding position, multiple black picture elements are formed.
4. local backlight adjusting method according to claim 3, which is characterized in that it is the multiple to calculate acquisition by backlight
The backlight of anti-fault image unit adjusts data, and the backlight for setting the multiple black picture elements adjusts data, including to institute
There is elementary area to execute following processing:
Read i-th of elementary area；Judge whether i-th of elementary area is anti-fault image unit, is then to described i-th
A elementary area carries out backlight calculating and display compensation calculation, obtains the backlight data of i-th of elementary area and shows
Show offset data, is sent to storage unit；Otherwise backlight value=0 of i-th of elementary area backlight data is set, setting the
I elementary area shows gray value=0 of offset data, is sent to storage unit.
5. local backlight adjusting method according to claim 4, which is characterized in that carried out to i-th of elementary area
Backlight calculates and display compensation calculation, comprising:
Backlight calculating is carried out to i-th of elementary area, obtains backlight data；
Display compensation calculation is carried out to i-th of elementary area based on the backlight data, obtains display offset data.
6. local backlight adjusting method according to claim 4, which is characterized in that further include:
Generate the backlight data and display offset data of this frame；
Backlight drive is sent respectively to according to vertical synchronizing signal, while by the backlight data of this frame and display offset data
Circuit and display driver circuit.
7. a kind of local backlight regulating device characterized by comprising
Receiving module, for receiving a frame input picture；
Formwork module, for according to pre-set label template, the input picture to be processed into including multiple anti-distortion figures
As the grid image of unit and multiple black picture elements；
Processing module is also used to for calculating the backlight adjusting data for obtaining the multiple anti-fault image unit by backlight
The backlight for setting the multiple black picture elements adjusts data.
8. local backlight regulating device according to claim 7, which is characterized in that be provided with label in the label template
Line and grid lines, the size and shape of the mark line is identical as the anti-distortion size and shape on boundary, and the grid lines is by institute
It states label template and is divided into multiple grids, region defined by each grid corresponds to backlight mould as an elementary area
One backlight sub-district of group and a display subregion of display panel.
9. local backlight regulating device according to claim 8, which is characterized in that the formwork module is specifically used for, institute
It states grid where mark line in label template and is not provided with data, form multiple boundary image units, the multiple boundary image list
Member forms the Boundary Loop of closure；Grid in the label template within mark line, is configured to input picture corresponding position
Data form multiple anti-fault image units；Grid in the label template except mark line, it is corresponding to be set input picture
The data of position form multiple black picture elements.
10. local backlight regulating device according to claim 9, which is characterized in that the processing module includes that judgement is single
Member, computing unit, setup unit and storage unit,
Judging unit judges whether i-th of elementary area is anti-fault image unit for i-th of elementary area of reading,
It is then to send computations to computing unit, otherwise sends setting instruction to setup unit；
Computing unit, for carrying out backlight calculating to i-th of elementary area and display being mended according to the computations
Calculating is repaid, the backlight data and display offset data of i-th of elementary area is obtained, is sent to storage unit；
Setup unit, for being instructed according to the setting, backlight value=0 of i-th of elementary area backlight data of setting, if
Gray value=0 that i-th of elementary area shows offset data is set, storage unit is sent to；
Storage unit, for storing the backlight data and display offset data of i-th of elementary area.
11. local backlight regulating device according to claim 10, which is characterized in that the computing unit includes that backlight is set
Determine computation subunit and display compensation calculation subelement,
Backlight computation subunit obtains backlight number for carrying out backlight calculating to i-th of elementary area
According to；
Compensation calculation subelement is shown, for carrying out display benefit to i-th of elementary area based on the backlight data
Calculating is repaid, display offset data is obtained.
12. local backlight regulating device according to claim 10, which is characterized in that further include generation module and transmission mould
Block,
Generation module, for generating the backlight data and display offset data of this frame；
Sending module, for distinguishing according to vertical synchronizing signal, while by the backlight data of this frame and display offset data
It is sent to backlight drive circuit and display driver circuit.
13. a kind of virtual reality system, which is characterized in that adjust dress including the local backlight as described in claim 7~12 is any
It sets.
14. a kind of medium, which is characterized in that be stored thereon with the computer program that can be run on a processor, the computer
The step of local backlight adjusting method as described in claim 1~6 is any is realized when program is executed by the processor.
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