CN110365950A - A kind of projecting method, projector and computer readable storage medium - Google Patents
A kind of projecting method, projector and computer readable storage medium Download PDFInfo
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- CN110365950A CN110365950A CN201810309956.8A CN201810309956A CN110365950A CN 110365950 A CN110365950 A CN 110365950A CN 201810309956 A CN201810309956 A CN 201810309956A CN 110365950 A CN110365950 A CN 110365950A
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- projection screen
- projector
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000004590 computer program Methods 0.000 claims description 24
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000003993 interaction Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 description 15
- 238000010586 diagram Methods 0.000 description 8
- 230000004044 response Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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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
-
- 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
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
Abstract
The application is suitable for porjector technology field, provide a kind of projecting method, projector and computer readable storage medium, projecting method includes: the operation information that user is acquired by projection screen, the operation information includes the first coordinate on projection screen, based on first Coordinate generation the first handwriting information corresponding with the operation information of the user, and first handwriting information is projected on the projection screen, the interaction of user and projector may be implemented by the application.
Description
Technical field
The application belongs to porjector technology field more particularly to a kind of projecting method, projector and computer-readable storage
Medium.
Background technique
Projector, also known as projector are a kind of equipment that can be projected image or video on curtain, can be by not
Same interface is connected with terminal devices such as computer, VCD, DVD, BD, game machine, DV to play corresponding figure or video and believe
Number.
Currently, projector is widely used in family, office, school and public place of entertainment.However, most of projector is only capable of
Enough to show image or video by curtain, function is less, intelligence degree is low.
Summary of the invention
In view of this, the embodiment of the present application provides a kind of projecting method, projector and computer readable storage medium, with
Solve the problems, such as that current projector functions are few, intelligence degree is low.
The first aspect of the embodiment of the present application provides a kind of projecting method, comprising:
The operation information of user is acquired by projection screen, the operation information includes the first coordinate on projection screen；
Based on first Coordinate generation the first handwriting information corresponding with the operation information of the user, and by described
One handwriting information is projected on the projection screen.
The second aspect of the embodiment of the present application provides a kind of projector, comprising:
First coordinate obtaining module, for acquiring the operation information of user by projection screen, the operation information includes
The first coordinate on projection screen；
First person's handwriting projection module, for based on first Coordinate generation corresponding with the operation information of the user
One handwriting information, and first handwriting information is projected on the projection screen.
The third aspect of the embodiment of the present application provides a kind of projector, including memory, processor and is stored in institute
The computer program that can be run in memory and on the processor is stated, the processor executes real when the computer program
The step of the method that existing the embodiment of the present application first aspect provides.
The fourth aspect of the embodiment of the present application provides a kind of computer readable storage medium, the computer-readable storage
Media storage has computer program, and the computer program realizes the embodiment of the present application when being executed by one or more processors
On the one hand the step of the method provided.
5th aspect of the embodiment of the present application provides a kind of computer program product, and the computer program product includes
Computer program, the computer program realize that the embodiment of the present application first aspect provides when being executed by one or more processors
The method the step of.
The embodiment of the present application acquires the operation information of user by projection screen, and the operation information includes on projection screen
The first coordinate, based on first Coordinate generation the first handwriting information corresponding with the operation information of the user, and by institute
The first handwriting information is stated to be projected on the projection screen, it, can since projection screen can collect the operation trace of user
To generate the first handwriting information according to operation trace, and the first handwriting information is projected on projection screen, realize user with
The information exchange of projector increases the function of projector, improves the intelligence degree of projector.
Detailed description of the invention
It in order to more clearly explain the technical solutions in the embodiments of the present application, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only some of the application
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is a kind of implementation process schematic diagram for projecting method that one embodiment of the application provides；
Fig. 2 is a kind of implementation process schematic diagram for projecting method that the another embodiment of the application provides；
Fig. 3 is the schematic block diagram for the projector that one embodiment of the application provides；
Fig. 4 is the schematic block diagram for the projector that the another embodiment of the application provides.
Specific embodiment
In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed
Body details, so as to provide a thorough understanding of the present application embodiment.However, it will be clear to one skilled in the art that there is no these specific
The application also may be implemented in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
The detailed description of road and method, so as not to obscure the description of the present application with unnecessary details.
It should be appreciated that ought use in this specification and in the appended claims, term " includes " instruction is described special
Sign, entirety, step, operation, the presence of element and/or component, but be not precluded one or more of the other feature, entirety, step,
Operation, the presence or addition of element, component and/or its set.
It is also understood that mesh of the term used in this present specification merely for the sake of description specific embodiment
And be not intended to limit the application.As present specification and it is used in the attached claims, unless on
Other situations are hereafter clearly indicated, otherwise " one " of singular, "one" and "the" are intended to include plural form.
It will be further appreciated that the term "and/or" used in present specification and the appended claims is
Refer to any combination and all possible combinations of one or more of associated item listed, and including these combinations.
As used in this specification and in the appended claims, term " if " can be according to context quilt
Be construed to " when ... " or " once " or " in response to determination " or " in response to detecting ".Similarly, phrase " if it is determined that " or
" if detecting [described condition or event] " can be interpreted to mean according to context " once it is determined that " or " in response to true
It is fixed " or " once detecting [described condition or event] " or " in response to detecting [described condition or event] ".
In order to illustrate technical solution described herein, the following is a description of specific embodiments.
Fig. 1 is the implementation process schematic diagram for the projecting method that one embodiment of the application provides, and this method as shown in the figure can be with
The following steps are included:
Step S101 acquires the operation information of user by projection screen, and the operation information includes on projection screen
First coordinate.
In the embodiment of the present application, sensor is provided on the projection screen, and sensor is array distribution, example
Such as, it is arranged on projection screen horizontal direction and vertical direction with preset distance interval.Sensor can be capacitance sensor,
It can be electric resistance sensor.If capacitance sensor, user can be operated on projection screen by finger, can also be led to
Stylus, capacitance pen etc. is crossed to be operated on projection screen；If touch screens, need throwing by stylus, capacitance pen etc.
It is operated on shadow curtain.So being actually by the operation information that projection screen acquires user: by projection screen
The operation information of capacitance sensor acquisition user.
For user when operating on projection screen, the sensor of corresponding position can receive electric signal on projection screen, according to
Coordinate of the corresponding sensor of electric signal where when the position on projection screen can obtain user's operation, we are labeled as the
One coordinate, the first coordinate representation is coordinate on projection screen.User carries out once-through operation, may generate multiple coordinates,
Such as multiple sensors are covered when clicking.
Collected first coordinate of projection screen can be by wired or be wirelessly sent to the projection
Instrument.
Step S102, based on first Coordinate generation the first handwriting information corresponding with the operation information of the user,
And first handwriting information is projected on the projection screen.
In the embodiment of the present application, the first coordinate when the projector can be by projection screen acquisition user's operation,
And according to first Coordinate generation the first handwriting information corresponding with the operation information of the user, for example, projector can
To preset the corresponding relationship of the position in image when coordinate and the projection on projection screen.
For clearer understanding, projector principle is introduced, projector is actually that light is radiated at image display member
Image is generated on part, is then projected by camera lens, and image-displaying member is that the light of projection lamp is divided into RGB three
Color, then generate the image of various colors.Assuming that being provided with the first handwriting information is red, then it can be calculated and be obtained according to the first coordinate
It obtains and generates red image on the corresponding position on image-displaying member.In the image projected on projection screen in this way just
It will appear the first red handwriting information.
It is described corresponding with the operation information of the user based on first Coordinate generation as the another embodiment of the application
The first person's handwriting information include: based on first Coordinate generation position (coordinate) corresponding with described image display element, and
Red image is generated in the position (coordinate) of described image display element.Since camera lens can in real time will be on described image display element
Image projected, correspondingly, image-displaying member position generate red image after, will be corresponding on projection screen
Show the first handwriting information.
The embodiment of the present application acquires the operation information of user by projection screen, and the operation information includes on projection screen
The first coordinate, based on first Coordinate generation the first handwriting information corresponding with the operation information of the user, and by institute
The first handwriting information is stated to be projected on the projection screen, it, can since projection screen can collect the operation trace of user
To generate the first handwriting information according to operation trace, and the first handwriting information is projected on projection screen, realize user with
The information exchange of projector increases the function of projector, improves the intelligence degree of projector.
Fig. 2 is the flow diagram for the projecting method that the another embodiment of the application provides, and this method as shown in the figure can wrap
Include following steps:
Step S201 acquires the operation information of user by projection screen, and the operation information includes on projection screen
First coordinate.
The step is consistent with step S101 content, specifically can refer to the description of step S101, details are not described herein.
Step S202 determines whether the desktop application for the terminal device connecting with the projector is answering for preset kind
With.
In the embodiment of the present application, the terminal device can be the equipment that computer, notebook etc. have display interface.
Projector would generally be connect with computer, and the image on the desktop of computer is shown on projection screen, if the computer
The application currently shown is PDF document, PPT document, then it represents that the desktop application is the application of editable paintbrush class, i.e., described
The application of preset kind is to be loaded with the application of paintbrush, and desktop application is the application that the terminal device is currently shown.
Step S203 then obtains the coordinate on the desktop of the terminal device and the throwing if the application of preset kind
The corresponding relationship of coordinate on shadow curtain；
It in the embodiment of the present application, is the institute in order to which information shows handwriting information in desktop application depending on the user's operation
The corresponding relationship of the coordinate on the coordinate and the projection screen on desktop to need to obtain the terminal device, that is, projecting
One position of curtain operates, while can generate person's handwriting in desktop application corresponding with the position, with embodiment shown in FIG. 1
Unanimously, embodiment illustrated in fig. 1 is the corresponding relationship for obtaining projection screen and image-displaying member, and the embodiment of the present application is to obtain eventually
The corresponding relationship of the desktop of end equipment and the projection screen, of course, it is possible to which according to the description of embodiment illustrated in fig. 1, pre-selection is set
The corresponding relationship for setting the coordinate on the coordinate and the projection screen on the desktop of the terminal device, can also pass through it certainly
Its mode obtains.
Coordinate and the projection screen as the another embodiment of the application, on the desktop for obtaining the terminal device
On the corresponding relationship of coordinate include:
Obtain the apex coordinate of projected image of the desktop of the terminal device on the projection screen；
Obtain the apex coordinate of the desktop of the terminal device:
The apex coordinate of the desktop of apex coordinate and the terminal device based on the projected image, generates the terminal
The corresponding relationship of the coordinate on coordinate and the projection screen on the desktop of equipment.
In the embodiment of the present application, due to the placement position of projector, image of the projector on projection screen can
Can be smaller than projection screen, so, be not that four vertex of projection screen and four vertex of desktop of terminal device have
Corresponding relationship, in fact, being apex coordinate and the institute of projected image of the desktop of the terminal device on the projection screen
The apex coordinate for stating the desktop of terminal device has corresponding relationship, and therefore, acquisition is the desktop of the terminal device described
The apex coordinate of the desktop of the apex coordinate of projected image on projection screen and the terminal device.
Obtain projected image of the desktop of the terminal device on the projection screen apex coordinate can by with
Under type:
After showing projected image on projection screen, user can be marked on four vertex of projected image, such as
Click 4 vertex of projected image.After click, projector will get 4 coordinates, this 4 coordinates are exactly that the terminal is set
The apex coordinate of projected image of the standby desktop on the projection screen, this 4 coordinates are the coordinates on projection screen.
The coordinate on coordinate and the projection screen as the another embodiment of the application, on the desktop of the terminal device
Corresponding relationship include:
Wherein, described (A, B) indicates that the coordinate on the desktop of the terminal device, (X, Y) indicate the seat on projection screen
Mark, (ai,bi) indicate terminal device desktop apex coordinate, (xi,yi) indicate that vertex of the projected image on projection screen is sat
Mark, lenth ratio of the Q for the desktop of projected image and terminal device in the direction x, the W is projected image and terminal device
Desktop the direction y lenth ratio.(ai,bi) and (xi,yi) position it is corresponding, for example, can be the top in the lower left corner simultaneously
Point, or be the vertex in the upper right corner simultaneously.
It should be noted that the Q and W are also understood that as the desktop of projected image and terminal device in the direction x and y
The ratio of resolution ratio.
Lenth ratio of the desktop of the projected image and terminal device in the direction x is obtained by following formula:
Lenth ratio of the desktop of the projected image and terminal device in the direction y is obtained by following formula:
Wherein, the described (x1,y1),(x2,y2),(x3,y3),(x4,y4) indicate top of the projected image on projection screen
Point coordinate, a1=a3, (a1,b1),(a2,b2),(a3,b3),(a4,b4) indicate terminal device desktop apex coordinate, b1
=b2。
Step S204 is based on the corresponding relationship, according to second on the desktop of the first Coordinate generation terminal device
Coordinate.
Step S205, according to second Coordinate generation the second handwriting information corresponding with the desktop application.
In the embodiment of the present application, described (A, B) is exactly the second coordinate, and (X, the Y) indicates the first coordinate.By above-mentioned
Formula can obtain the second coordinate according to the first coordinate.Second coordinate is exactly the coordinate on desktop, corresponding, generates second
Mark information.
Step S203 to step S205 is based on first Coordinate generation the second person's handwriting corresponding with the desktop application
The process of information.It should be noted that in the embodiment shown in fig. 1, during obtaining the first handwriting information, can also pass through
The above method obtain described image display element on coordinate and the projection screen on coordinate corresponding relationship, then according to
The above method is according to the first Coordinate generation the first handwriting information corresponding with the operation information of the user.Unlike, in life
At the first handwriting information process using the coordinate on the coordinate and projection screen on image-displaying member corresponding relationship,
The process for generating the second handwriting information is closed using the coordinate on the desktop of terminal device is corresponding with the coordinate of projection screen
System.
Second handwriting information is sent to the terminal device by step S206, and second handwriting information is for referring to
Show that second handwriting information is shown and is stored in the desktop application by the terminal device.
In the embodiment of the present application, the second handwriting information can be sent to terminal device, can also be directly sat second
Mark is sent to terminal device.If what is sent is the second handwriting information, the second handwriting information is used to indicate the terminal device will
Second handwriting information shows and is stored in the desktop application；If the secondth coordinate sent, the second coordinate are used for
Indicate that the terminal device shows and protects according to second handwriting information of the second Coordinate generation, and by second handwriting information
There are in the desktop application.
Certainly, in practical applications, the second handwriting information can also be only generated, the first handwriting information is not generated, but needs
The second handwriting information shown on desktop is projected on projection screen, the behaviour of user can also be shown on such projection screen
Make the track of information.The first handwriting information and the second handwriting information obtained is to be overlapped on projection screen.
On the basis of embodiment embodiment shown in Fig. 1 shown in Fig. 2, how further refine accurately according to user
Operation information generate the first handwriting information and the/the second handwriting information so that the first handwriting information and/or the second person's handwriting that generate
Information can reflect the operation information of user in real time and accurately.
It should be understood that the size of the serial number of each step is not meant that the order of the execution order in above-described embodiment, each process
Execution sequence should be determined by its function and internal logic, the implementation process without coping with the embodiment of the present application constitutes any limit
It is fixed.
Fig. 3 is that the schematic block diagram for the projector that one embodiment of the application provides only is shown and the application for ease of description
The relevant part of embodiment.
The projector 3 can be the software unit being built in existing projector, hardware cell or soft or hard combination
Unit can also be used as independent pendant and be integrated into the existing projector, is also used as independent projector and exists.
The projector 3 includes:
First coordinate obtaining module 31, for acquiring the operation information of user, the operation information packet by projection screen
Include the first coordinate on projection screen；
First person's handwriting projection module 32, for corresponding with the operation information of the user based on first Coordinate generation
First handwriting information, and first handwriting information is projected on the projection screen.
Optionally, the projector 3 further include:
Judgment module 33, for determining whether the desktop application for the terminal device connecting with the projector is preset kind
Application；
Second person's handwriting generation module 34 is then based on first Coordinate generation and institute for the application if preset kind
State corresponding second handwriting information of desktop application；
Sending module 35, for second handwriting information to be sent to the terminal device, second handwriting information
The terminal device is used to indicate to show second handwriting information and be stored in the desktop application.
Optionally, the second person's handwriting generation module 34 includes:
Corresponding relationship acquiring unit 341, the coordinate and the projection screen on desktop for obtaining the terminal device
On coordinate corresponding relationship；
Second coordinate generating unit 342, for being based on the corresponding relationship, according to the first Coordinate generation terminal device
Desktop on the second coordinate；
Second person's handwriting generation unit 343, for according to second Coordinate generation corresponding with the desktop application second
Handwriting information.
Optionally, the corresponding relationship acquiring unit 341 includes:
First obtains subelement, for obtaining projected image of the desktop of the terminal device on the projection screen
Apex coordinate；
Second obtains subelement, the apex coordinate of the desktop for obtaining the terminal device:
Corresponding relationship generates subelement, the desktop for apex coordinate and the terminal device based on the projected image
Apex coordinate, generate the corresponding relationship of coordinate on the desktop of the terminal device and the coordinate on the projection screen.
Optionally, the corresponding relationship packet of the coordinate on the desktop of the terminal device and the coordinate on the projection screen
It includes:
Wherein, described (A, B) indicates that the coordinate on the desktop of the terminal device, (X, Y) indicate the seat on projection screen
Mark, (ai,bi) indicate terminal device desktop apex coordinate, (xi,yi) indicate that vertex of the projected image on projection screen is sat
Mark, lenth ratio of the Q for the desktop of projected image and terminal device in the direction x, the W is projected image and terminal device
Desktop the direction y lenth ratio.
Optionally, lenth ratio of the desktop of the projected image and terminal device in the direction x is obtained by following formula:
Lenth ratio of the desktop of the projected image and terminal device in the direction y is obtained by following formula:
Wherein, the described (x1,y1),(x2,y2),(x3,y3),(x4,y4) indicate top of the projected image on projection screen
Point coordinate, a1=a3, (a1,b1),(a2,b2),(a3,b3),(a4,b4) indicate terminal device desktop apex coordinate, b1
=b2。
Optionally, the first coordinate obtaining module 31 is also used to:
The operation information of user is acquired by the capacitance sensor on projection screen.
It is apparent to those skilled in the art that for convenience of description and succinctly, only with above-mentioned each function
Can unit, module division progress for example, in practical application, can according to need and by above-mentioned function distribution by different
Functional unit, module complete, i.e., the internal structure of the projector is divided into different functional unit or module, with complete with
The all or part of function of upper description.Each functional unit in embodiment, module can integrate in one processing unit,
It can be each unit to physically exist alone, can also be integrated in one unit with two or more units, it is above-mentioned integrated
Unit both can take the form of hardware realization, can also realize in the form of software functional units.In addition, each function list
Member, the specific name of module are also only for convenience of distinguishing each other, the protection scope being not intended to limit this application.Above-mentioned apparatus
The specific work process of middle unit, module, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
Fig. 4 is the schematic block diagram for the projector that the another embodiment of the application provides.As shown in figure 4, the projection of the embodiment
Instrument 4 includes: one or more processors 40, memory 41 and is stored in the memory 41 and can be in the processor 40
The computer program 42 of upper operation.The processor 40 realizes that above-mentioned each projecting method is real when executing the computer program 42
Apply the step in example, such as step S101 to S102 shown in FIG. 1.Alternatively, the processor 40 executes the computer program
The function of each module/unit in above-mentioned projector embodiment, such as the function of module 31 to 32 shown in Fig. 3 are realized when 42.
Illustratively, the computer program 42 can be divided into one or more module/units, it is one or
Multiple module/units are stored in the memory 41, and are executed by the processor 40, to complete the application.Described one
A or multiple module/units can be the series of computation machine program instruction section that can complete specific function, which is used for
Implementation procedure of the computer program 42 in the projector 4 is described.For example, the computer program 42 can be divided
At the first coordinate obtaining module, the first person's handwriting projection module.
First coordinate obtaining module, for acquiring the operation information of user, the operation information by projection screen
Including the first coordinate on projection screen；
The first person's handwriting projection module, for corresponding with the operation information of the user based on first Coordinate generation
The first handwriting information, and first handwriting information is projected on the projection screen.
Other modules or unit can refer to the description in embodiment shown in Fig. 3, and details are not described herein.
The projector includes but are not limited to processor 40, memory 41.It will be understood by those skilled in the art that Fig. 4
An only example of projector 4, does not constitute the restriction to projector 4, may include than illustrating more or fewer portions
Part, perhaps combines certain components or different components, for example, the projector can also include input equipment, output equipment,
Network access equipment, bus etc..
The processor 40 can be central processing unit (Central Processing Unit, CPU), can also be
Other general processors, digital signal processor (Digital Signal Processor, DSP), specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor is also possible to any conventional processor
Deng.
The memory 41 can be the internal storage unit of the projector 4, such as the hard disk or memory of projector 4.
The memory 41 is also possible to the External memory equipment of the projector 4, such as the plug-in type being equipped on the projector 4 is hard
Disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card, flash card
(Flash Card) etc..Further, the memory 41 can also both include the internal storage unit of the projector 4 or wrap
Include External memory equipment.The memory 41 is for other programs needed for storing the computer program and the projector
And data.The memory 41 can be also used for temporarily storing the data that has exported or will export.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in detail or remembers in some embodiment
The part of load may refer to the associated description of other embodiments.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
Scope of the present application.
In embodiment provided herein, it should be understood that disclosed projector and method, it can be by other
Mode realize.For example, projector embodiment described above is only schematical, for example, the module or unit
It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components
It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or
The mutual coupling or direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit
Conjunction or communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated module/unit be realized in the form of SFU software functional unit and as independent product sale or
In use, can store in a computer readable storage medium.Based on this understanding, the application realizes above-mentioned implementation
All or part of the process in example method, can also instruct relevant hardware to complete, the meter by computer program
Calculation machine program can be stored in a computer readable storage medium, the computer program when being executed by processor, it can be achieved that on
The step of stating each embodiment of the method.Wherein, the computer program includes computer program code, the computer program generation
Code can be source code form, object identification code form, executable file or certain intermediate forms etc..The computer-readable medium
It may include: any entity or device, recording medium, USB flash disk, mobile hard disk, magnetic that can carry the computer program code
Dish, CD, computer storage, read-only memory (ROM, Read-Only Memory), random access memory (RAM,
Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium etc..It should be noted that described
The content that computer-readable medium includes can carry out increasing appropriate according to the requirement made laws in jurisdiction with patent practice
Subtract, such as in certain jurisdictions, according to legislation and patent practice, computer-readable medium do not include be electric carrier signal and
Telecommunication signal.
Embodiment described above is only to illustrate the technical solution of the application, rather than its limitations；Although referring to aforementioned reality
Example is applied the application is described in detail, those skilled in the art should understand that: it still can be to aforementioned each
Technical solution documented by embodiment is modified or equivalent replacement of some of the technical features；And these are modified
Or replacement, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution should all
Comprising within the scope of protection of this application.
Claims (10)
1. a kind of projecting method, which is characterized in that be applied to projector, comprising:
The operation information of user is acquired by projection screen, the operation information includes the first coordinate on projection screen；
Based on first Coordinate generation the first handwriting information corresponding with the operation information of the user, and by described the first stroke
Mark information is projected on the projection screen.
2. projecting method as described in claim 1, which is characterized in that by projection screen acquire user operation information it
Afterwards, further includes:
Determine the desktop application of terminal device being connect with the projector whether be preset kind application；
If the application of preset kind, then based on first Coordinate generation the second person's handwriting letter corresponding with the desktop application
Breath；
Second handwriting information is sent to the terminal device, second handwriting information is used to indicate the terminal device
Second handwriting information is shown and is stored in the desktop application.
3. projecting method as claimed in claim 2, which is characterized in that described to be based on first Coordinate generation and the desktop
Include: using corresponding second handwriting information
Obtain the corresponding relationship of the coordinate on the coordinate and the projection screen on the desktop of the terminal device；
Based on the corresponding relationship, according to the second coordinate on the desktop of the first Coordinate generation terminal device；
According to second Coordinate generation the second handwriting information corresponding with the desktop application.
4. projecting method as claimed in claim 3, which is characterized in that the coordinate on the desktop for obtaining the terminal device
Corresponding relationship with the coordinate on the projection screen includes:
Obtain the apex coordinate of projected image of the desktop of the terminal device on the projection screen；
Obtain the apex coordinate of the desktop of the terminal device；
The apex coordinate of the desktop of apex coordinate and the terminal device based on the projected image, generates the terminal device
Desktop on coordinate and the projection screen on coordinate corresponding relationship.
5. projecting method as claimed in claim 4, which is characterized in that coordinate and the throwing on the desktop of the terminal device
The corresponding relationship of coordinate on shadow curtain includes:
Wherein, described (A, B) indicates that the coordinate on the desktop of the terminal device, (X, Y) indicate the coordinate on projection screen,
(ai,bi) indicate terminal device desktop apex coordinate, (xi,yi) indicate apex coordinate of the projected image on projection screen,
Lenth ratio of the Q for the desktop of projected image and terminal device in the direction x, the W are projected image and terminal device
Lenth ratio of the desktop in the direction y.
6. projecting method as claimed in claim 5, which is characterized in that the desktop of the projected image and terminal device is in the side x
To lenth ratio pass through following formula obtain:
Lenth ratio of the desktop of the projected image and terminal device in the direction y is obtained by following formula:
Wherein, the described (x1,y1),(x2,y2),(x3,y3),(x4,y4) indicate that vertex of the projected image on projection screen is sat
Mark, a1=a3, (a1,b1),(a2,b2),(a3,b3),(a4,b4) indicate terminal device desktop apex coordinate, b1=b2。
7. such as projecting method as claimed in any one of claims 1 to 6, which is characterized in that described to acquire user by projection screen
Operation information include:
The operation information of user is acquired by the capacitance sensor on projection screen.
8. a kind of projector characterized by comprising
First coordinate obtaining module, for acquiring the operation information of user by projection screen, the operation information includes projection
The first coordinate on curtain；
First person's handwriting projection module, for based on first Coordinate generation the first stroke corresponding with the operation information of the user
Mark information, and first handwriting information is projected on the projection screen.
9. a kind of projector, including memory, processor and storage can transport in the memory and on the processor
Capable computer program, which is characterized in that the processor realizes such as claim 1 to 7 times when executing the computer program
The step of one the method.
10. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer journey
Sequence realizes the step such as any one of claim 1 to 7 the method when the computer program is executed by one or more processors
Suddenly.
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| CN201810309956.8A CN110365950A (en) | 2018-04-09 | 2018-04-09 | A kind of projecting method, projector and computer readable storage medium |
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| CN201810309956.8A CN110365950A (en) | 2018-04-09 | 2018-04-09 | A kind of projecting method, projector and computer readable storage medium |
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| CN111145315A (en) * | 2019-12-14 | 2020-05-12 | 中国科学院深圳先进技术研究院 | Drawing method, drawing device, toy robot and readable storage medium |
| CN114157847A (en) * | 2021-11-11 | 2022-03-08 | 深圳市普渡科技有限公司 | Projection method, system, terminal device, robot and storage medium |
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