CN109360229A - Laser projection image processing method, device and equipment - Google Patents
Laser projection image processing method, device and equipment Download PDFInfo
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- CN109360229A CN109360229A CN201811288749.5A CN201811288749A CN109360229A CN 109360229 A CN109360229 A CN 109360229A CN 201811288749 A CN201811288749 A CN 201811288749A CN 109360229 A CN109360229 A CN 109360229A
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- G06T7/30—Determination of transform parameters for the alignment of images, i.e. image registration
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Abstract
The embodiment of the present invention provides laser projection image processing method, device and equipment, this method comprises: determining the first pixel address according to the ranks call number got；Obtain brightness control table；Wherein, the brightness control table includes: pixel address and corresponding intensity correction values；According to first pixel address, each pixel of display is successively projected according to the intensity correction values in the brightness control table, obtains projected image.Pixel address is terminated according to the first starting pixel address and first, it is sequentially adjusted in the brightness value of each pixel in the ranks call number, it is simple, accurate to realize the adjustment to pixel brightness each in image so as to obtain the projected image with uniform luminance.
Description
Technical field
The present invention relates to field of computer technology more particularly to laser projection image processing methods, device and equipment.
Background technique
The application of shadow casting technique is very extensive at present, and relatively conventional projection pattern includes DLP (Digital Light
Processing) projection, LCOS (Liquid Crystal on Silicon) are projected and LBS (Laser Bean Scanning)
Projection etc..Wherein, LBS shadow casting technique has many advantages, such as touch-control interaction, is not required to focusing, is small in size.Before presentation clearly projects
It puts, LBS technology can realize the glossy display that infinite focal, wide colour gamut and quiet/dynamic image are launched；Based on identical point
Resolution, LBS technology contrast is high, low in energy consumption, more frivolous, and embedded performance is splendid.Importantly, LBS technology is without increasing the depth of field
Camera module can be realized accurate positioning and touch, and help to reduce cost.
In the prior art, LBS shadow casting technique controls laser projection by MEMS (MEMS), since MEMS is driving
Under dynamic signal control, it is not uniform motion that angular speed is operated during periodic oscillations, and projection is caused to obtain shown by pixel
Image size changes, and the deformation quantity that pixel is stretched is bigger, and the brightness of pixel is lower, the image for causing projection to obtain
Display brightness is uneven.
Based on this, one kind is needed simply, to be effectively processed for realization projected image brightness to projected image uniform
The scheme of display.
Summary of the invention
In view of this, the embodiment of the present invention provides laser projection image processing method, device and equipment, the present invention needs one
Kind is simple, is effectively processed for realizing the scheme of projected image brightness uniform display to projected image.
In a first aspect, the embodiment of the present invention provides a kind of laser projection image processing method, comprising:
According to the ranks call number got, the first pixel address is determined；
Obtain brightness control table；Wherein, the brightness control table includes: pixel address and corresponding intensity correction values；
According to first pixel address, display is successively projected according to the intensity correction values in the brightness control table
Each pixel obtains projected image.
Second aspect, the embodiment of the present invention provide a kind of laser projection image processing apparatus, comprising:
Address determination module, for determining the first pixel address according to the ranks call number got；
Module is obtained, for obtaining brightness control table；Wherein, the brightness control table includes: pixel address and corresponding
Intensity correction values；
Projection module is used for according to first pixel address, according to the gamma correction in the brightness control table
Successively projection shows each pixel to value, obtains projected image.
The third aspect, the embodiment of the present invention provide a kind of electronic equipment, and the equipment includes:.
The embodiment of the invention provides a kind of computer storage mediums, for storing computer program, the computer journey
The image processing method in above-mentioned first aspect is realized when sequence executes computer.
Fourth aspect, the embodiment of the present invention provide a kind of laser projection image processing unit, and described device includes:
Image data module, for providing image to be displayed data, wherein the image to be displayed data include at least:
Pixel brightness value；
Brightness control table module includes pixel address and corresponding intensity correction values；
Image data laminating module, the first pixel address in ranks call number got for basis, according to described
The intensity correction values and corresponding pixel brightness value in brightness control table, successively projection shows each pixel, obtains projection figure
Picture.
Laser projection image processing method provided in an embodiment of the present invention obtains the corresponding laser projection of each ranks call number
First starting pixel address of image and first terminates pixel address, further, obtains brightness control table, controls in the brightness
It include pixel address and corresponding intensity correction values in table.When carrying out laser projection, according to the sequence of pixel address, successively
Each brightness value to projected pixels point is corrected, the projected pixels brightness value after being corrected.Further, from first
Starting pixels address starts, and carries out laser projection according to the projected pixels brightness value after correction, obtains projected image.By above-mentioned
Technical solution terminates pixel address according to the first starting pixel address and first, is sequentially adjusted in each in the ranks call number
The brightness value of pixel, it is simple, accurate to realize to each in image so as to obtain the projected image with uniform luminance
The adjustment of pixel brightness.
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 this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of laser beam flying projector (LBS) provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of projected image provided in an embodiment of the present invention；
Fig. 3 is the flow diagram of image processing method provided in an embodiment of the present invention；
Fig. 4 is a kind of schematic diagram of brightness control table provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram of pixel Luminance Distribution provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of laser projection image processing apparatus provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of a kind of electronic equipment provided in an embodiment of the present invention；
Fig. 8 is the structural schematic diagram of another laser projection image processing apparatus provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The term used in embodiments of the present invention is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The present invention.In the embodiment of the present invention and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning, " a variety of " generally comprise at least two, but not
It excludes to include at least one situation.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate: individualism A, exist simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
Depending on context, word as used in this " if ", " if " can be construed to " ... when " or
" when ... " or " in response to determination " or " in response to detection ".Similarly, context is depended on, phrase " if it is determined that " or " such as
Fruit detection (condition or event of statement) " can be construed to " when determining " or " in response to determination " or " when detection (statement
Condition or event) when " or " in response to detection (condition or event of statement) ".
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Include, so that commodity or system including a series of elements not only include those elements, but also including not clear
The other element listed, or further include for this commodity or the intrinsic element of system.In the feelings not limited more
Under condition, the element that is limited by sentence "including a ...", it is not excluded that in the commodity or system for including the element also
There are other identical elements.
In addition, the step timing in following each method embodiments is only a kind of citing, rather than considered critical.
Technical solution of the present invention can be applied in laser beam flying projector (LBS), head-up display (Head Up
Display, HUD) etc. in technical fields.In order to make it easy to understand, being illustrated by taking LBS as an example below.
As shown in Figure 1, mainly including in LBS: image input interface, for receiving the figure of the outputs such as PC machine, set-top box
As data, and carry out image real time transfer.
Laser controller will be inputted from image and be connect for controlling the brightness of three color laser of RGB (red, green, blue)
The pixel data for the image that mouth receives is lighted simultaneously with tri- color laser of RGB and synthesizes a pixel color.
Tri- color laser of RGB, under the control of laser controller, three color laser are successively according to image information composograph picture
Vegetarian refreshments.
Scanning control system, scanning control system is for output drive signal control MEMS (MEMS) simultaneously in water
It square is rotated to vertical direction.
MEMS (MEMS), control reflecting mirror can be swung around horizontally and vertically two axis.
The projected image obtained by the projection device is as shown in Fig. 2, during the swing due to MEMS, speed is the moment
Variation, it can be seen from the figure that row number is in each column of P1~P7, the length of each pixel is different, the pixel of P1, P7
Length is shorter, and P4 is long, causes P1, P7 pixel brightness relatively high, P4 brightness is relatively low.The laser projection image of acquisition
Brightness irregularities.To solve the above-mentioned problems, technical solution of the present invention, the brightness to pixel each in image can be used
It is adjusted.It is specific as follows:
Fig. 3 is the flow diagram of image processing method provided in an embodiment of the present invention, in the present embodiment image procossing
Method can be executed by projection device.Method includes the following steps:
Step 301: according to the ranks call number got, determining the first pixel address.
In practical applications, laser projection is realized by laser.In projection process, laser is according to preset scanning
Sequentially, for example, according to from top to bottom, sequence from left to right is scanned；Specifically, when carrying out the display of certain row pixel,
It is shown according to sequence individual element point from left to right；After the display for completing pixel column, according to from top to bottom
Sequence shows the pixel in next pixel column.
Ranks call number mentioned here can be line index number (for example, Y row) or column index number (for example, X is arranged).
First pixel address can be the pixel address comprising line index number (for example, Y) and column index number (for example, X) certainly can also
To indicate the pixel address (for example, (X, Y)) by transverse and longitudinal coordinate.It should be noted that each ranks call number all has pair
The first pixel address answered, for example, it is assumed that ranks call number is line index number, then corresponding pixel address can be column index
Number, then the first pixel address can be the pixel address with same column call number.In general, ranks rope mentioned here
Quotation marks need to be determined according to current resolution ratio image to be projected, for example, resolution ratio image to be projected is X*Y, then it is corresponding
Line index number is 0~Y-1.
Step 302: obtaining brightness control table；Wherein, the brightness control table includes: pixel address and corresponding brightness school
Positive value.
If Fig. 4 is a kind of schematic diagram of brightness control table provided in an embodiment of the present invention, in the brightness control table, pixel
Address and intensity correction values are mutual corresponding relationships.The intensity correction values may be positive and negative or zero.Brightness mentioned here
Corrected value is the numerical value that the brightness value of the pixel for obtaining for current projection is adjusted, so as to needed for obtaining
The projected pixels point of brightness.It should be noted that intensity correction values mentioned here, can be to produce in device for projecting laser and adjust
During examination, the determining brightness control table suitable for the device for projecting laser of test is carried out for the equipment, therefore, in reality
In, different device for projecting laser (for example, LBS laser-projector) has different brightness control tables.
Step 303: according to first pixel address, successively according to the intensity correction values in the brightness control table
Projection shows each pixel, obtains projected image.
First pixel address mentioned here, including the first starting pixel address and first terminate pixel address.In reality
In, MEMS hunting range is greater than effective indication range, and in other words, the initial position of MEMS hunting range is in advance with described the
One starting pixel address, the final position of MEMS hunting range, which falls behind, terminates pixel address with first.In MEMS swing process,
Before reaching the corresponding first starting pixel address of ranks call number, laser projection is closed；In the termination pixel of arrival first
After location, laser projection is closed；It is terminated between pixel address in the first starting pixel address and first, opens laser projection, and
The brightness value of each pixel is adjusted.It is mentioned here successively to project, it can be understood as, according to the suitable of ranks call number
Sequence (the ratio of sequence (for example, number order of line index number) and the pixel in the corresponding row or column of each ranks call number
Such as, sequence from left to right) successively projected；It can be by it should be noted that in some practical applications, during transversal scanning
According to the sequence of current line from left to right, the sequence of next line from right to left joins end to end and successively scans.
It should be noted that successively projection mentioned here shows each pixel, it is aobvious to be that laser projection laser carries out projection
The projection sequence of each pixel when showing, for example, can be according to sequence projection display from top to bottom, from left to right.Due to
It is to be shown according to the sequence of pixel address in brightness control table, so the institute in the tables of data when being shown
There is the pixel in row, column that will be shown.
Above-mentioned scanning shows process, is the process that a frame image is shown, each frame image is also in real time according to certain
Period is updated.Therefore, in practical applications, the frame image update period is greater than or equal to the rank scanning period.
In one or more embodiment of the invention, the ranks call number that the basis is got is determined corresponding
First pixel address, can specifically include: obtain pixel brightness value shown by each pixel address in the ranks call number；Root
According to default first luminance threshold and the pixel brightness value, corresponding first pixel address of the ranks call number is determined.
As mentioned before and Fig. 2 is it is found that when carrying out laser projection display, and the brightness with pixel each in a line is not
Uniformly, if Fig. 5 is the schematic diagram of pixel Luminance Distribution provided in an embodiment of the present invention.In Fig. 5, abscissa expression is being worked as
The relative position of each pixel in preceding scanning range, ordinate indicate that the pixel brightness value before correction, U-shaped point indicate a pixel
The brightness value of point and corresponding relative position, U-shaped line indicate that the U-shaped line is known as U-shaped bright by luminance mean value in order to describe simplicity
Spend mean value line.
It can be seen from the figure that the initial position of each row and the brightness of end position are relatively high, intermediate luminance is relatively low,
And in addition to initial position and end position, other positions brightness is relatively uniform, is easily adjusted.When carrying out brightness adjustment, it is
Projection is closed, in other words, so that excessively bright initial position and end position are or not obvious excessively bright position by simplified adjustment operation
Display.First luminance threshold mentioned here can be such as the corresponding brightness value of two intersection points between vertical line and curve in Fig. 5；
Certainly, in practical applications, the corresponding brightness value possibility of the two intersection points is identical may also be different.
In one or more embodiment of the invention, the basis presets the first luminance threshold and the pixel intensity
Value, determines corresponding first pixel address of the ranks call number, can specifically include: according to default first luminance threshold
With each pixel brightness value got, determine that the corresponding first starting pixel address of the ranks call number and first terminates pixel
Address.
For example, known to as shown in Figure 5, it is assumed that the first luminance threshold is E, determines that U-shaped brightness is equal according to the first luminance threshold
The intersection point being worth on line, the abscissa of two vertical lines is determined based on intersection point.Further, the corresponding abscissa of two vertical lines is to be somebody's turn to do
First pixel address (that is, column index number), the respectively first starting pixel address and first terminate pixel address.Each line index
Number corresponding first pixel address can be identical.
In one or more embodiment of the invention, the determination ranks call number corresponding first originates picture
It can also include: to originate pixel address and described first eventually according to described first after plain address and the first termination pixel address
Only pixel address determines the valid pixel quantity and the corresponding pixel for including in the corresponding row or column of the ranks call number
Address.
In practical applications, due to the difference of practical drop shadow spread, to show that identical content (has equal resolution
Content), then need the corresponding display cycle for adjusting each pixel.Therefore, the first starting pixel address and are being determined
After one terminates pixel address, need according to the pixel resolution of current image to be displayed (in other words, included in each row or column
Pixel quantity), recalculate the display cycle of each pixel.
It is determining after the valid pixel quantity that the first starting pixel address and first terminate between pixel address, into
One step, it needs to determine the corresponding pixel address of each pixel based on current indication range.For example, it is assumed that image to be displayed
Resolution ratio is X*Y, and in current indication range, division obtains X*Y pixel, and carries out to the corresponding position of each pixel
Number, as pixel address.
In one or more embodiment of the invention, the acquisition brightness control table be can specifically include: according to institute
Ranks call number is stated, determines the corresponding pixel brightness value of each pixel address；According to default second luminance threshold and the picture
Plain brightness value determines the intensity correction values；Based on the pixel address and the corresponding intensity correction values, obtain described bright
Spend control table.
It, may further be in effective indication range after determining the first starting pixel address and the first termination pixel address
The luminance mean value of each pixel of interior determination, using the luminance mean value as default second luminance threshold.Certainly, in practical application
In, default second luminance threshold can not be through mean value determination, can be what user specified according to demand.
Assuming that current pixel brightness value is A, the second luminance threshold is B；It is possible to determine intensity correction values C=B-A.
Further, it is based on intensity correction values C and pixel address, obtains brightness control table.In the table, intensity correction values and pixel
It is one-to-one relationship between location.
It is described to be based on the pixel address and the corresponding brightness school in one or more embodiment of the invention
Positive value obtains the brightness control table, can specifically include: according to the ranks call number and comprising the valid pixel number
Amount, sequence determine the pixel address of each pixel；Based on the pixel address and the corresponding intensity correction values, institute is obtained
State brightness control table.
In practical applications, pixel address can be indicated by column index number.It is assumed that ranks call number is the pixel column of X
In, pixel address is corresponding column index Y.It, can be according to valid pixel quantity when pixel address is numbered
N, successively serial number 0~(Yn-1).In brightness control table, intensity correction values C and column index Y are one-to-one relationships.
It is described according to first pixel address in one or more embodiment of the invention, according to the brightness
The intensity correction values in control table successively project each pixel of display, obtain projected image, can specifically include: according to described
First starting pixel address, projects the first pixel；According to the intensity correction values, each pixel brightness value is adjusted；
According to the pixel address in the brightness control table, successively projection shows each pixel, obtains projected image.
As mentioned before, it is assumed that scanning sequency is from left to right sequence from top to bottom.Assuming that the first starting pixel address
For (X0, Y0), start to project the first pixel in the address.In projection process, to the brightness value of each pixel to be projected into
Row adjustment, in practical applications, intensity correction values can be positive and negative or zero.It, can be bright by current pixel when being adjusted
Angle value and intensity correction values are used as adjustment result (certainly, in practical applications, pixel brightness value and gamma correction after being summed
Operation relation between value can be adjusted according to actual scene, and summation mentioned here is one of embodiment).?
When carrying out pixel projection, successively projected according to the sequence of pixel address.
It is described according to the intensity correction values in one or more embodiment of the invention, it is bright to each pixel
Angle value is adjusted, and can specifically include: obtaining the pixel brightness value and the intensity correction values；It is superimposed the pixel intensity
Value and the intensity correction values obtain projected pixels brightness value.
Assuming that projected pixels brightness value be D, according to intensity correction values described previously be C, pixel brightness value A, that
, D=A+C.In actual projected, need to carry out the projection and display of pixel according to projection brightness value.
Based on same thinking, the embodiment of the present invention also provides a kind of laser projection image processing apparatus, as shown in fig. 6,
The device includes:
Address determination module 61, for determining the first pixel address according to the ranks call number got；
Module 62 is obtained, for obtaining brightness control table；Wherein, the brightness control table includes: pixel address and correspondence
Intensity correction values；
Projection module 63 is used for according to first pixel address, according to the brightness school in the brightness control table
Successively projection shows each pixel to positive value, obtains projected image.
Further, address determination module 61, for obtaining picture shown by each pixel address in the ranks call number
Plain brightness value；
According to default first luminance threshold and the pixel brightness value, corresponding first pixel of the ranks call number is determined
Address.
Further, the basis presets the first luminance threshold and the pixel brightness value, determines the ranks call number
Corresponding first pixel address, comprising:
According to default first luminance threshold and each pixel brightness value got, determine that the ranks call number is corresponding
First starting pixel address and first terminate pixel address.
Further, it is determined that the corresponding first starting pixel address of the ranks call number and first terminate pixel address it
Afterwards, further includes:
Pixel address is terminated according to the first starting pixel address and described first, determines that the ranks call number is corresponding
Row or column in include valid pixel quantity and the corresponding pixel address.
Further, the acquisition module 62, for determining that each pixel address is corresponding according to the ranks call number
Pixel brightness value；
According to default second luminance threshold and the pixel brightness value, the intensity correction values are determined；
Based on the pixel address and the corresponding intensity correction values, the brightness control table is obtained.
Further, described to be based on the pixel address and the corresponding intensity correction values, obtain the brightness control
Table, comprising:
According to the ranks call number and comprising the valid pixel quantity, sequence is with determining the pixel of each pixel
Location；
Based on the pixel address and the corresponding intensity correction values, the brightness control table is obtained.
Further, described according to first pixel address, according to the gamma correction in the brightness control table
Successively projection shows each pixel to value, obtains projected image, comprising:
According to the first starting pixel address, the first pixel is projected；
According to the intensity correction values, each pixel brightness value is adjusted；
According to the pixel address in the brightness control table, successively projection shows each pixel, obtains projected image.
Further, described according to the intensity correction values, each pixel brightness value is adjusted, comprising:
Obtain the pixel brightness value and the intensity correction values；
It is superimposed the pixel brightness value and the intensity correction values, obtains projected pixels brightness value.
According to described previously, the first starting pixel address and the of the corresponding laser projection image of each ranks call number is obtained
One terminates pixel address, further, obtains brightness control table, in the brightness control table, comprising pixel address and corresponding
Intensity correction values.When carrying out laser projection, according to the sequence of pixel address, successively to each brightness value to projected pixels point
It is corrected, the projected pixels brightness value after being corrected.Further, since the first starting pixel address, according to correction
Projected pixels brightness value afterwards carries out laser projection, obtains projected image.Through the above technical solutions, according to the first starting pixels
Address and first terminates pixel address, the brightness value of each pixel in the ranks call number is sequentially adjusted in, so as to obtain
There must be the projected image of uniform luminance, it is simple, accurate to realize the adjustment to pixel brightness each in image.
Based on same thinking, as shown in fig. 7, a kind of electronic equipment, comprising: memory 71, processor 72；Wherein,
The memory 71 is for storing one or more computer instruction, wherein one or more computer refers to
It enables and realizes laser projection image processing method as previously described when being executed by the processor 72.
Based on same thinking, as Fig. 8 is another laser projection image processing apparatus provided in an embodiment of the present invention
Structural schematic diagram.The device includes:
Image data module 81, for providing image to be displayed data, wherein the image to be displayed data are at least wrapped
It includes: pixel brightness value；
Brightness control module 82 includes pixel address and corresponding intensity correction values；
Image data laminating module 83, the first pixel address in ranks call number got for basis, according to institute
The intensity correction values in brightness control table and corresponding pixel brightness value are stated, successively projection shows each pixel, is projected
Image.
Image data module 81 mentioned here is for providing image to be displayed data, image to be displayed number mentioned here
According to including showing relevant data to image to projected pixels point color, pixel brightness value etc..
It is precisely controlled to obtain each pixel display effect in image to projection, is controlled to laser projection
When, it is corrected according to the intensity correction values of pixel each in brightness control module 82, according to the pixel brightness value after correction
Projection.
In practical applications, it needs to be corrected pixel intensity by image data laminating module 83.Specifically,
Assuming that projected pixels brightness value be D, according to intensity correction values described previously be C, pixel brightness value A, then, D=A+
C.In actual projected, need to carry out the projection and display of pixel according to projection brightness value.
In one or more embodiment of the invention, further includes: image data buffer 84, for receiving
The projection moment of the image to be displayed data is controlled；
Address counter 85, the projection moment for being provided according to described image data buffer, according to described bright
The sequence of the pixel address in degree control table module is counted.
Frame buffer 84 is for buffering the image to be displayed data received.Specifically, as mentioned before
It is found that when actually carrying out laser projection progress brightness adjustment, in order to simplify adjustment operation, obvious excessively bright position being closed and is thrown
Shadow, in other words, so that excessively bright initial position and end position is not shown.
As can be seen from the foregoing, after determining ranks call number to be shown, each pixel is primary in current row or column
It carries out projection to show, needs to export corresponding pixel address information (for example, pixel address pointer) by address counter 85 and use
The corresponding intensity correction values in lookup brightness control table.
In the apparatus, the connection relationship of modules specifically includes: image data module 81 and frame buffer 84 connect
It connects；Frame buffer 84 is connect with image data laminating module 83 and address counter 85 simultaneously；Address counter 85 and brightness
Control module 82 connects；Brightness control module 82 is connect with image data laminating module 83；Image data laminating module 83 with
Laser connection.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It is realized by the mode of required general hardware platform is added, naturally it is also possible to which reality is come in conjunction with by way of hardware and software
It is existing.Based on this understanding, substantially the part that contributes to existing technology can be to calculate in other words for above-mentioned technical proposal
The form of machine product embodies, and it wherein includes the meter of computer usable program code that the present invention, which can be used in one or more,
The computer journey implemented in calculation machine usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of sequence product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
General purpose computer, special purpose computer, Embedded Processor or other programmable coordinates are instructed to determine the processor of equipment to produce
A raw machine, so that being generated by the instruction that computer or other programmable coordinates determine that the processor of equipment executes for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable coordinates determine equipment with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device 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.
These computer program instructions can also be loaded into computer or other programmable coordinates determine in equipment, 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 instruction 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.
In a typical configuration, calculating equipment includes one or more processors (CPU), input/output interface, net
Network interface and memory.
Memory may include the non-volatile memory in computer-readable medium, random access memory (RAM) and/or
The forms such as Nonvolatile memory, such as read-only memory (ROM) or flash memory (flash RAM).Memory is computer-readable medium
Example.
Computer-readable medium includes permanent and non-permanent, removable and non-removable media can be by any method
Or technology come realize information store.Information can be computer readable instructions, data structure, the module of program or other data.
The example of the storage medium of computer includes, but are not limited to phase change memory (PRAM), static random access memory (SRAM), moves
State random access memory (DRAM), other kinds of random access memory (RAM), read-only memory (ROM), electric erasable
Programmable read only memory (EEPROM), flash memory or other memory techniques, read-only disc read only memory (CD-ROM) (CD-ROM),
Digital versatile disc (DVD) or other optical storage, magnetic cassettes, tape magnetic disk storage or other magnetic storage devices
Or any other non-transmission medium, can be used for storage can be accessed by a computing device information.As defined in this article, it calculates
Machine readable medium does not include temporary computer readable media (transitory media), such as the data-signal and carrier wave of modulation.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (12)
1. a kind of laser projection image processing method, which is characterized in that be applied to laser controller, which comprises
According to the ranks call number got, the first pixel address is determined；
Obtain brightness control table；Wherein, the brightness control table includes: pixel address and corresponding intensity correction values；
According to first pixel address, each picture of display is successively projected according to the intensity correction values in the brightness control table
Element obtains projected image.
2. the method according to claim 1, wherein the ranks call number that the basis is got, determines and corresponds to
The first pixel address, comprising:
Obtain pixel brightness value shown by each pixel address in the ranks call number；
According to default first luminance threshold and the pixel brightness value, with determining corresponding first pixel of the ranks call number
Location.
3. according to the method described in claim 2, it is characterized in that, the basis presets the first luminance threshold and the pixel is bright
Angle value determines corresponding first pixel address of the ranks call number, comprising:
According to default first luminance threshold and each pixel brightness value got, the ranks call number corresponding the is determined
One starting pixel address and first terminates pixel address.
4. according to the method described in claim 3, it is characterized in that, determining corresponding first starting pixels of the ranks call number
After address and the first termination pixel address, further includes:
Pixel address is terminated according to the first starting pixel address and described first, determines the corresponding row of the ranks call number
Or column in include valid pixel quantity and the corresponding pixel address.
5. according to the method described in claim 4, it is characterized in that, the acquisition brightness control table, comprising:
According to the ranks call number, the corresponding pixel brightness value of each pixel address is determined；
According to default second luminance threshold and the pixel brightness value, the intensity correction values are determined；
Based on the pixel address and the corresponding intensity correction values, the brightness control table is obtained.
6. according to the method described in claim 5, it is characterized in that, described be based on the pixel address and the corresponding brightness
Corrected value obtains the brightness control table, comprising:
According to the ranks call number and comprising the valid pixel quantity, sequence determines the pixel address of each pixel；
Based on the pixel address and the corresponding intensity correction values, the brightness control table is obtained.
7. according to the method described in claim 3, it is characterized in that, described according to first pixel address, according to described bright
The intensity correction values in degree control table successively project each pixel of display, obtain projected image, comprising:
According to the first starting pixel address, the first pixel is projected；
According to the intensity correction values, each pixel brightness value is adjusted；
According to the pixel address in the brightness control table, successively projection shows each pixel, obtains projected image.
8. according to the method described in claim 5, it is characterized in that, described according to the intensity correction values, to each pixel
Brightness value is adjusted, comprising:
Obtain the pixel brightness value and the intensity correction values；
It is superimposed the pixel brightness value and the intensity correction values, obtains projected pixels brightness value.
9. a kind of laser projection image processing apparatus, which is characterized in that described device includes:
Address determination module, for determining the first pixel address according to the ranks call number got；
Module is obtained, for obtaining brightness control table；Wherein, the brightness control table includes: pixel address and corresponding brightness
Corrected value；
Projection module, for according to first pixel address, according to the intensity correction values in the brightness control table according to
Secondary projection shows each pixel, obtains projected image.
10. a kind of electronic equipment characterized by comprising memory, processor；Wherein,
The memory is for storing one or more computer instruction, wherein one or more computer instruction is by institute
State the laser projection image processing method realized as described in any one of claims 1 to 7 when processor executes.
11. a kind of laser projection image processing unit, which is characterized in that described device includes:
Image data module, for providing image to be displayed data, wherein the image to be displayed data include at least: pixel
Brightness value；
Brightness control table module includes pixel address and corresponding intensity correction values；
Image data laminating module, the first pixel address in ranks call number got for basis, according to the brightness
The intensity correction values and corresponding pixel brightness value in control table, successively projection shows each pixel, obtains projection image.
12. device according to claim 11, which is characterized in that further include:
Image data buffer is controlled for the projection moment to the image to be displayed data received；
Address counter, the projection moment for being provided according to described image data buffer control according to the brightness
The sequence of the pixel address in table module is counted.
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