CN109634032A - Image processing method, device and equipment - Google Patents
Image processing method, device and equipment Download PDFInfo
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- CN109634032A CN109634032A CN201811290917.4A CN201811290917A CN109634032A CN 109634032 A CN109634032 A CN 109634032A CN 201811290917 A CN201811290917 A CN 201811290917A CN 109634032 A CN109634032 A CN 109634032A
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- call number
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/147—Optical correction of image distortions, e.g. keystone
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Abstract
The embodiment of the present invention provides image processing method, device and equipment, this method comprises: obtaining the ranks call number and corresponding laser projection angle to projected pixels row or pixel column；According to the laser projection angle, the ranks call number corresponding target rank scanning period is determined；According to the target rank scanning period, each pixel in the corresponding pixel column of each ranks call number or pixel column is sequentially shown.By the way of adjusting each ranks call number corresponding target rank scanning period, pixel display cycle, corresponding projection initial position is set for each pixel column or pixel column, the edge alignment of the pixel column and/or pixel column column of image, simple, the effective correction realized to laser projection image can be obtained.
Description
Technical field
The present invention relates to field of computer technology more particularly to 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.
Conventionally, as there are angles between projector and light curtain, and the image that projector is presented is each
Edge is different to the optical path distance between projector, leads to project the image in light curtain and is distorted.In the prior art, usually
By increasing curved mirror or adjustment the distance between projector and light curtain, angle, to realize that decrease projects the figure in light curtain
The distortion degree of picture.There are also being corrected in some projectors using correction algorithm, the picture material after being corrected can be made
Effect is unobvious after losing or correcting.
Based on this, need it is a kind of simple, effectively projected image is processed for realize the scheme of undistorted projection.
Summary of the invention
In view of this, the embodiment of the present invention provides image processing method, device and equipment, the present invention need it is a kind of it is simple,
Effectively projected image is processed for realize the scheme of undistorted projection.
In a first aspect, the embodiment of the present invention provides a kind of image processing method, comprising:
Obtain the ranks call number and corresponding laser projection angle to projected pixels row or pixel column；
According to the laser projection angle, the ranks call number corresponding target rank scanning period is determined；
According to the target rank scanning period, the corresponding pixel column of each ranks call number or pixel column are sequentially shown
In each pixel.
Second aspect, the embodiment of the present invention provide a kind of image processing apparatus, comprising:
Module is obtained, for obtaining ranks call number and corresponding laser projection angle to projected pixels row or pixel column；
Period determination module, for determining the corresponding target ranks of the ranks call number according to the laser projection angle
Scan period；
Display module, for sequentially showing that each ranks call number is corresponding according to the target rank scanning period
Each pixel in pixel column or pixel column.
The third aspect, a kind of laser beam flying projection device, the equipment include:
External active clock, frequency regulation arrangement, tilt angle measuring apparatus, period computing device；
The external active clock is connect with the frequency regulation arrangement, and the tilt angle measuring apparatus and the period count
Device is calculated to connect with the frequency regulation arrangement；
Tilt angle is sent to the period computing device by the tilt angle measuring apparatus, exports periodic adjustment signal；
The frequency regulation arrangement carries out the external active clock according to the periodic adjustment signal received
Frequency is adjusted, and exports the target rank scanning period.
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.
Image processing method provided in an embodiment of the present invention, when carrying out laser projection, get to projected pixels row or
The ranks call number of pixel column and corresponding laser projection angle；According to laser projection angle, the corresponding mesh of ranks call number is determined
Mark the rank scanning period；Further, according to the target rank scanning period of each pixel column or pixel column, according to specified suitable
Sequence shows the pixel in the corresponding pixel column of each ranks call number or pixel column.When carrying out laser projection, laser root
According to the sequence of ranks call number, according to from top to bottom, sequence from left to right (can also be set other sharp in practical applications
Light projection sequence) realize that laser projection is shown.For different ranks call numbers, there is the different target rank scanning periods.
Through the above technical solutions, using each ranks call number corresponding target rank scanning period, pixel display cycle is adjusted
Mode is that each pixel column or pixel column set corresponding projection initial position, can obtain the pixel column and/or pixel column of image
The edge of column is aligned, simple, the effective correction realized to laser projection image.
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 distorted projection image provided in an embodiment of the present invention and the schematic diagram for completing the projected image after correction；
Fig. 3 is the flow diagram of image processing method provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of image processing apparatus provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of laser beam flying projection device provided in an embodiment of the present invention；
Fig. 6 is a kind of laser projection angular dependence schematic diagram provided in an embodiment of the present invention；
Fig. 7 is a kind of image flame detection timing diagram 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 led as shown in Fig. 2, since there are angles between laser and light curtain
Cause optical path length different, the image projected is distorted.Further, to the mesh of pixel column each in image or pixel column
The mark rank scanning period is adjusted, the image after obtaining the correction that dash area is shown.It specifically, can be using the present invention
Technical solution, line bend is adjusted, image processing method is 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:
301: obtaining the ranks call number and corresponding laser projection angle to projected pixels row or pixel column.
Ranks call number mentioned here can be and obtain after carrying out serial number calibration to row or column according to resolution of displayed images
The ranks call number arrived, such as, it is assumed that the resolution ratio for showing image is X*Y, then the line index number for corresponding to each row is 0~(X-
1).Laser projection angle is it is to be understood that projected pixels row or the angle of pixel column and horizontal plane；For example, display image top
The corresponding laser projection angle pixel column L1 is α 1, and the corresponding laser projection angle last line pixel column Ln is α n, top
The corresponding laser projection angle of pixel column is bigger.Different ranks call numbers correspond to different laser projection angles, ranks call number and swash
Light projection image is one-to-one relationship.
302: according to the laser projection angle, determining the ranks call number corresponding target rank scanning period.
For example, being shown by Fig. 2 it is found that if each pixel column is scanned display all in accordance with the identical rank scanning period
When, the initial position of each pixel column and final position are different.In order to be corrected to image, need for difference
The corresponding pixel column of ranks call number the corresponding target rank scanning period is set separately.In general, image tune is being carried out
When whole, according to the shortest a line of pixel column as reference pixel row, the initial position of other pixel columns is adjusted to and reference pixel
The position of start of line position consistency.
303: according to the target rank scanning period, sequentially showing the corresponding pixel column of each ranks call number or picture
Each pixel in element column.
As can be seen from the foregoing, the rank scanning period mentioned here is the period that laser carries out laser projection, pixel
The point display cycle is the period that single pixel point is shown, to be projected in pixel column or pixel column in laser projection process
Multiple pixels.In other words, the rank scanning period is greater than or is equal to the pixel display cycle.
It should be noted that sequence mentioned here is shown, it is scanning when laser projection laser is scanned display
Sequentially, it is shown for example, can be according to sequence from top to bottom, from left to right.When due to when being shown, being according to starting
Between in tables of data the sequence of ranks call number shown, so the pixel in all row, column in the tables of data is all
It is to be displayed.
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, described obtain indexes to the ranks of projected pixels row or pixel column
Number and corresponding laser projection angle, can specifically include: obtaining the tilt angle of laser projection device；According to the inclination angle and
To projected pixels row or the corresponding ranks call number of pixel column, laser projection angle is determined.
In practical applications, there are certain angle (ratios between laser projection device and light curtain (screen for imaging)
Such as, the angle of depression or the elevation angle), different degrees of pattern distortion occurs so as to cause different pixels row.As can be seen from the foregoing, different
The corresponding laser projection angle of pixel column is different.If Fig. 6 is a kind of laser projection light path schematic diagram provided in an embodiment of the present invention.Swash
Angle between light device and supporting plane is β, and the angle of optical path and horizontal plane is α.The corresponding pixel of same ranks call number
Row, in corresponding tilt angle difference, obtained laser projection angle is different.Therefore, in practical applications, laser projection is calculated
When angle, need to be calculated according to tilt angle.
It is described according to the laser projection angle in one or more embodiment of the invention, determine the ranks rope
It in the quotation marks corresponding target rank scanning period, can specifically include: obtaining preset laser projection periodic table；Wherein, described to swash
Include in light projection periodic table: laser projection angle, ranks call number and corresponding target rank scanning period；According to the laser
Projectional angle and the laser projection periodic table determine the ranks call number corresponding target rank scanning period.
In laser projection periodic table, laser projection angle and ranks call number, target rank scanning period are to correspond
Relationship.In practical applications, since the tilt angle of laser equipment may be different, become to will lead to laser projection angle
Change.Therefore, for same ranks call number, can have multiple groups laser projection angle and corresponding target rank scanning week simultaneously
Phase.For example, it is assumed that ranks call number is Ln, corresponding, when laser projection angle is α 1, the corresponding target rank scanning period is
T1；When laser projection angle is α 2, the corresponding target rank scanning period is T2.
In practical applications, it determines to the ranks call number and corresponding laser projection angle to projected pixels row or pixel column
Afterwards, present laser projectional angle corresponding target rank scanning week can be determined according to ranks call number, by way of tabling look-up
Phase.
In one or more embodiment of the invention, the mode of the laser projection periodic table is determined, it specifically can be with
It include: to obtain with reference to the rank scanning period；According to the laser projection angle and the reference rank scanning period, the row is determined
The column index number corresponding target rank scanning period；According to the laser projection angle, the target rank scanning period and correspondence
The ranks call number, generate the laser projection periodic table.
For example, laser image adjustment before and adjustment after as illustrated in fig. 2, it is assumed that, each row is all adjusted to and the last one in figure
The identical initial position pixel column L8；Assuming that the corresponding laser projection angle L1 is α 1, the corresponding laser projection angle L2 is α 2 etc.；
It is assumed that the quantity for the pixel for including in each pixel column is n.Calculation method for example, when the angle of L1 is α 1, adjusts
The corresponding period of L1 afterwards is T1=T*L8/L1.Specifically, according to laser projection angle α, with reference to rank scanning cycle T and target
The variable quantity in period can be calculated in rank scanning period Tn, indicated by functional relation f (α).Further, may be used
To establish a laser projection periodic table for ranks call number, corresponding laser projection angle, target rank scanning period etc..?
In later period practical application, by tabling look-up, the target rank scanning period required for can directly obtaining.
In one or more embodiment of the invention, the ranks call number corresponding target rank scanning week is determined
It can also include: to obtain the reference scan initial time for referring to the rank scanning period after phase；It obtains described with reference to rank scanning
Period difference between period and the target rank scanning period；When being originated according to the period difference and the reference scan
It carves, determines targeted scans initial time.
For example, it is assumed that being T with reference to the rank scanning period, the corresponding target rank scanning period is Tn, reference scan starting
Moment is t, calculates targeted scans initial time tn.If ranks pixel center after each correction to its, tn=t+ (T-
Tn)/2.In practical applications, the initial position for the pixel column for needing to correct is different, the method for calculating targeted scans initial time
It is different.Required targeted scans are calculated after can comparing according to realistic objective initial position and with reference to initial position to rise
Begin the moment.
In one or more embodiment of the invention, the ranks call number corresponding target rank scanning week is determined
It can also include: to obtain the pixel quantity to projected pixels row or pixel column after phase；It is swept according to the target ranks
Period and the pixel quantity are retouched, determines the pixel display cycle.
For example, it is assumed that ranks call number is L1, the quantity of corresponding pixel is n, and the rank scanning period is T, then, it can
To know pixel display cycle Tpix=T/n.In general, the pixel in the corresponding pixel column of ranks call number or pixel column
The quantity of point is determined by the resolution ratio of image to be displayed or projection device.
In one or more embodiment of the invention, described according to the target rank scanning period, sequence is shown
Each pixel in the corresponding pixel column of each ranks call number or pixel column, can specifically include: current to be shown
In frame image, the corresponding ranks call number of each pixel column or pixel column to be shown is obtained；According to the laser projection week
Each ranks call number puts in order in phase table, sequentially shows the corresponding pixel column of each ranks call number or pixel column
In pixel；Wherein, the frame cycle of images of the frame image to be shown is greater than the target rank scanning period.
It should be noted that the projection in the pixel, pixel column, pixel column of above-mentioned each embodiment is shown, it is all base
It is carried out in same frame image.When being shown according to ranks call number progress sequence, can be shown using S type scanning track
Show, the switching time that laser is switched to next pixel column or pixel column can be effectively reduced in this way.In practical applications, frame figure
As the period is greater than the summation of all pixels row or pixel column time scan period in present image.
Based on same thinking, the embodiment of the present invention also provides a kind of image processing apparatus, as shown in figure 4, the device packet
It includes:
Module 41 is obtained, for obtaining ranks call number and corresponding laser projection to projected pixels row or pixel column
Angle；
Period determination module 42, for determining the corresponding target line of the ranks call number according to the laser projection angle
The column scan period；
Display module 43, for sequentially showing that each ranks call number is corresponding according to the target rank scanning period
Pixel column or pixel column in each pixel.
Further, the acquisition module 41, for obtaining the tilt angle of laser projection device；
According to the inclination angle with to projected pixels row or the corresponding ranks call number of pixel column, laser projection angle is determined.
Further, the period determination module 42, for obtaining preset laser projection periodic table；Wherein, described to swash
Include in light projection periodic table: laser projection angle, ranks call number and corresponding target rank scanning period；
According to the laser projection angle and the laser projection periodic table, the corresponding target line of the ranks call number is determined
The column scan period.
Further, the mode of the determining laser projection periodic table, can specifically include:
It obtains and refers to the rank scanning period；
According to the laser projection angle and the reference rank scanning period, the corresponding target of the ranks call number is determined
The rank scanning period；
According to the laser projection angle, the target rank scanning period and the corresponding ranks call number, institute is generated
State laser projection periodic table.
Further, it is determined that after the ranks call number corresponding target rank scanning period, further includes:
Acquisition is the reference scan initial time with reference to the rank scanning period；
Obtain the period difference with reference between rank scanning period and the target rank scanning period；
According to the period difference and the reference scan initial time, targeted scans initial time is determined.
Further, it is determined that after the ranks call number corresponding target rank scanning period, further includes:
Obtain the pixel quantity to projected pixels row or pixel column；
According to the target rank scanning period and the pixel quantity, the pixel display cycle is determined.
Further, described according to the target rank scanning period, sequentially show that each ranks call number is corresponding
Each pixel in pixel column or pixel column, comprising:
In current frame image to be shown, the corresponding ranks index of each pixel column or pixel column to be shown is obtained
Number；
It is put in order according to each ranks call number in the laser projection periodic table, sequentially shows each ranks
Pixel in the corresponding pixel column of call number or pixel column；
Wherein, the frame cycle of images of the frame image to be shown is greater than the target rank scanning period.
Based on same thinking, the embodiment of the present invention also provides a kind of laser beam flying projection device, as shown in figure 5, institute
Stating equipment includes:
External active clock 51, frequency regulation arrangement 52, tilt angle measuring apparatus 53, period computing device 54；
The external active clock 51 is connect with the frequency regulation arrangement 52, the tilt angle measuring apparatus 53 with it is described
Period computing device 54 and the frequency regulation arrangement 52 connect；
Tilt angle is sent to the period computing device 54, output periodic adjustment letter by the tilt angle measuring apparatus 52
Number；
The frequency regulation arrangement 52, according to the periodic adjustment signal received, to the external active clock 51
Signal carry out frequency adjusting, export the target rank scanning period.
In same frame image, laser equipment exports the signal relation in target rank scanning period as shown in fig. 7, VS in figure
Indicate that frame image shows that useful signal, HS indicate that the pixel column useful signal in a frame image information, Pclk indicate a line image
Each pixel display cycle in effectively.Shadow region is that the region of actual point bright pixel in a pixel column image is corresponding in HS
Period.
Further, the frequency regulation arrangement 52 in the laser beam flying projection device include: the first frequency doubling device 521,
Second frequency doubling device 523, frequency divider 522；
The external active clock is successively connect with first frequency doubling device, frequency divider, the second frequency doubling device；
First frequency doubling device carries out frequency multiplication adjusting to the external timing signal, exports the first frequency-doubled signal；
The frequency divider divides first frequency-doubled signal, output frequency division according to the periodic adjustment signal
Signal；
Second frequency doubling device carries out frequency multiplication adjusting to the fractional frequency signal, exports the target rank scanning period.
Frequency multiplication operation is carried out by clock signal of first frequency doubling device to external active clock 51, so as in subsequent step
When carrying out divide operation, fractional frequency signal precision is improved.The first frequency-doubled signal obtained is apparently higher than desired signal frequency, further
Ground divides first frequency-doubled signal, obtains required periodic signal according to the periodic adjustment signal being calculated.Into
One step, it is based on the second frequency doubling device, frequency multiplication operation is carried out to the fractional frequency signal of output, so as to obtain required target line
The column scan period.
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 (10)
1. a kind of image processing method, which is characterized in that the described method includes:
Obtain the ranks call number and corresponding laser projection angle to projected pixels row or pixel column；
According to the laser projection angle, the ranks call number corresponding target rank scanning period is determined；
According to the target rank scanning period, sequentially show in the corresponding pixel column of each ranks call number or pixel column
Each pixel.
2. the method according to claim 1, wherein the acquisition is to projected pixels row or the ranks rope of pixel column
Quotation marks and corresponding laser projection angle, comprising:
Obtain the tilt angle of laser projection device；
According to the inclination angle with to projected pixels row or the corresponding ranks call number of pixel column, laser projection angle is determined.
3. determining the ranks the method according to claim 1, wherein described according to the laser projection angle
The call number corresponding target rank scanning period, comprising:
Obtain preset laser projection periodic table；Wherein, include in the laser projection periodic table: laser projection angle, ranks rope
Quotation marks and corresponding target rank scanning period；
According to the laser projection angle and the laser projection periodic table, determine that the corresponding target ranks of the ranks call number are swept
Retouch the period.
4. according to the method described in claim 3, it is characterized in that, determining the mode of the laser projection periodic table, comprising:
It obtains and refers to the rank scanning period；
According to the laser projection angle and the reference rank scanning period, the corresponding target ranks of the ranks call number are determined
Scan period；
According to the laser projection angle, the target rank scanning period and the corresponding ranks call number, generate described sharp
Light projection periodic table.
5. according to the method described in claim 3, it is characterized in that, determining the corresponding target rank scanning of the ranks call number
After period, further includes:
Obtain the reference scan initial time for referring to the rank scanning period；
Obtain the period difference with reference between rank scanning period and the target rank scanning period；
According to the period difference and the reference scan initial time, targeted scans initial time is determined.
6. method according to claim 3, which is characterized in that determine the ranks call number corresponding target rank scanning week
After phase, further includes:
Obtain the pixel quantity to projected pixels row or pixel column；
According to the target rank scanning period and the pixel quantity, the pixel display cycle is determined.
7. sequence is aobvious the method according to claim 1, wherein described according to the target rank scanning period
Show each pixel in the corresponding pixel column of each ranks call number or pixel column, comprising:
In current frame image to be shown, the corresponding ranks call number of each pixel column or pixel column to be shown is obtained；
It is put in order according to each ranks call number in the laser projection periodic table, sequentially shows each ranks index
Pixel in number corresponding pixel column or pixel column；
Wherein, the frame cycle of images of the frame image to be shown is greater than the target rank scanning period.
8. a kind of image processing apparatus, which is characterized in that described device includes:
Module is obtained, for obtaining ranks call number and corresponding laser projection angle to projected pixels row or pixel column；
Period determination module, for determining the corresponding target rank scanning of the ranks call number according to the laser projection angle
Period；
Display module, for sequentially showing the corresponding pixel of each ranks call number according to the target rank scanning period
Each pixel in capable or pixel column.
9. a kind of laser beam flying projection device, which is characterized in that the equipment includes: external active clock, frequency adjusting dress
It sets, tilt angle measuring apparatus, period computing device；
The external active clock is connect with the frequency regulation arrangement, and the tilt angle measuring apparatus and the period calculate and fill
It sets and is connected with the frequency regulation arrangement；
Tilt angle is sent to the period computing device by the tilt angle measuring apparatus, exports periodic adjustment signal；
The frequency regulation arrangement carries out frequency to the external active clock according to the periodic adjustment signal received
It adjusts, exports the target rank scanning period.
10. equipment according to claim 9, which is characterized in that the frequency regulation arrangement include: the first frequency doubling device,
Second frequency doubling device, frequency divider；
The external active clock is successively connect with first frequency doubling device, frequency divider, the second frequency doubling device；
First frequency doubling device carries out frequency multiplication adjusting to the external timing signal, exports the first frequency-doubled signal；
The frequency divider divides first frequency-doubled signal, output frequency division signal according to the periodic adjustment signal；
Second frequency doubling device carries out frequency multiplication adjusting to the fractional frequency signal, exports the target rank scanning period.
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| CN201811290917.4A CN109634032B (en) | 2018-10-31 | 2018-10-31 | Image processing method and device |
| PCT/CN2018/121748 WO2020087689A1 (en) | 2018-10-31 | 2018-12-18 | Image processing method and device, and apparatus |
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| CN114280895B (en) * | 2021-12-24 | 2024-01-05 | 深圳市先地图像科技有限公司 | Pixel row distribution method, system and related equipment in laser imaging process |
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| CN109634032B (en) | 2021-03-02 |
| WO2020087689A1 (en) | 2020-05-07 |
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