CN106937101A - View field's bearing calibration and system - Google Patents
View field's bearing calibration and system Download PDFInfo
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- CN106937101A CN106937101A CN201710173002.4A CN201710173002A CN106937101A CN 106937101 A CN106937101 A CN 106937101A CN 201710173002 A CN201710173002 A CN 201710173002A CN 106937101 A CN106937101 A CN 106937101A
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- 238000012937 correction Methods 0.000 claims abstract description 56
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000006073 displacement reaction Methods 0.000 claims description 15
- 230000015654 memory Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 3
- 238000007781 pre-processing Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000011946 reduction process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 238000001914 filtration Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
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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]
- H04N9/3179—Video signal processing therefor
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- G06T5/80—
Abstract
The present invention relates to projection display technique field, in particular to a kind of view field's bearing calibration and system.View field's bearing calibration is applied to projector equipment, and methods described includes：The projection scene image of the projector equipment is obtained, ambient image of the projection scene image where projection screen image and projection screen is constituted；Ambient image according to where the projection screen image and the projection screen positions the position of the projection screen；The position of the projection screen is compared with the position of the view field of the projector equipment, the side-play amount of the position of the position relative to the projection screen of the view field is obtained；And the position of the view field is corrected according to the side-play amount.View field's bearing calibration and system, realize the automatic correction of the view field of projector equipment, not only have convenience for the mode that Traditional Man is manually adjusted, and can ensure good projector equipment audiovisual experience.
Description
Technical field
The present invention relates to projection display technique field, in particular to a kind of view field's bearing calibration and system.
Background technology
In the prior art, in order to possess more preferable projector equipment audiovisual experience, a projection screen can be configured, is thrown opening
After shadow equipment, the view field of projector equipment is projected by way of manually adjusting the ideal bit of projection screen
Put.This process is very cumbersome, it is necessary to user takes a long time adjustment, and manually adjusts the rear throwing to be possessed
Shadow equipment audiovisual experience is but often unsatisfactory.
The content of the invention
In view of this, the present invention provides a kind of view field's bearing calibration and system, to solve the above problems.
A kind of view field's bearing calibration is the embodiment of the invention provides, projector equipment is applied to, methods described includes：
The projection scene image of the projector equipment is obtained, the projection scene image is by projection screen image and projection screen
Ambient image where curtain is constituted；
Ambient image according to where the projection screen image and the projection screen positions the position of the projection screen
Put；
The position of the projection screen is compared with the position of the view field of the projector equipment, the throwing is obtained
Side-play amount of the position in shadow zone domain relative to the position of the projection screen；And
The position of the view field is corrected according to the side-play amount.
Further, described in the ambient image positioning according to where the projection screen image and the projection screen
The step of position of projection screen, including：
Obtain the marginal information and angle point information of the projection screen；And
The position of the projection screen is obtained according to the marginal information and angle point information.
Further, the position by the projection screen is compared with the position of the view field of the projector equipment
It is right, the step of the side-play amount of position of the position relative to the projection screen for obtaining the view field, including：
Set up coordinate system；
The coordinate value of the position in the coordinate system of the projection screen is obtained, the position of the view field is obtained in institute
State the coordinate value of coordinate system；And
The coordinate value of coordinate value and the view field position to the projection screen position is compared, and obtains described
Side-play amount of the view field position relative to the projection screen position.
Further, the side-play amount include offset and shift offset, it is described according to the side-play amount to institute
The step of position for stating view field is corrected, including：
Angle correct is carried out to the position of the view field according to the offset；And
Displacement correction is carried out to the position of the view field according to the shift offset.
Further, methods described also includes：
Judge whether the view field after correction meets projection and require, if it is not, correction is then re-started, until judging again
When, untill the view field after the correction meets projection requirement.
The embodiment of the present invention additionally provides a kind of view field's correction system, is applied to projector equipment, and the system includes：
Projection scene image collection module, the projection scene image for obtaining the projector equipment, the projection scene
Ambient image of the image where projection screen image and projection screen is constituted；
Projection screen position acquisition module, for the environment according to where the projection screen image and the projection screen
The position of projection screen described in framing；
Side-play amount acquisition module, for by the position of the position of the projection screen and the view field of the projector equipment
Compare, obtain the side-play amount of the position of the position relative to the projection screen of the view field；And
View field's correction module, for being corrected to the position of the view field according to the side-play amount.
Further, the projection screen position acquisition module, including：
Position feature information acquisition unit, marginal information and angle point information for obtaining the projection screen；And
Projection screen position acquisition unit, for obtaining the projection screen according to the marginal information and angle point information
Position.
Further, the side-play amount acquisition module, including：
Coordinate sets up unit, for setting up coordinate system；
Coordinate value acquiring unit, coordinate value of the position in the coordinate system for obtaining the projection screen obtains institute
State the coordinate value of the position in the coordinate system of view field；And
Side-play amount acquiring unit, for the coordinate value to the projection screen position and the coordinate of the view field position
Value is compared, and obtains side-play amount of the view field position relative to the projection screen position.
Further, the side-play amount includes offset and shift offset, view field's correction module, bag
Include：
Angle correcting unit, for carrying out angle correct to the position of the view field according to the offset；
And
Displacement correction unit, for carrying out displacement correction to the position of the view field according to the shift offset.
Further, the system also includes view field's judge module again, is for the view field after judgement correction
No to meet projection requirement, if it is not, then re-starting correction, when judging again, the view field after the correction meets puts
Untill reflecting requirement.
In terms of existing technologies, the invention has the advantages that：
View field's bearing calibration provided in an embodiment of the present invention and system, by the projection scene graph for obtaining projector equipment
Picture, position of positioning projection's screen in scene is projected, and compare the position of projection screen and the view field of projector equipment
Position, obtains the side-play amount of the position relative to the position of projection screen of view field, so that according to the side-play amount to projected area
The position in domain is corrected, and realizes the automatic correction of the view field of projector equipment, is manually adjusted relative to Traditional Man
Not only there is convenience for mode, and good projector equipment audiovisual experience can be ensured.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be attached to what is used needed for embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, thus be not construed as it is right
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is a kind of schematic block diagram of projector equipment provided in an embodiment of the present invention.
Fig. 2 is the functional block diagram that a kind of view field provided in an embodiment of the present invention corrects system.
Fig. 3 is a kind of structured flowchart of projection screen position acquisition module provided in an embodiment of the present invention.
Fig. 4 is a kind of structured flowchart of side-play amount acquisition module provided in an embodiment of the present invention.
Fig. 5 is a kind of structured flowchart of view field's correction module provided in an embodiment of the present invention.
Fig. 6 A~6C is the complementary explanatory diagram of view field's trimming process provided in an embodiment of the present invention.
Fig. 7 is another functional block diagram that view field provided in an embodiment of the present invention corrects system.
Fig. 8 is a kind of flow chart of view field's bearing calibration provided in an embodiment of the present invention.
Fig. 9 is the flow chart of the sub-step of step S200 in Fig. 8.
Figure 10 is the flow chart of the sub-step of step S300 in Fig. 8.
Figure 11 is the flow chart of the sub-step of step S400 in Fig. 8.
Figure 12 is another flow chart of view field's bearing calibration provided in an embodiment of the present invention.
Icon：10- projector equipments；100- view fields correct system；110- projects scene image collection module；120- throws
Shadow screen position acquisition module；121- position feature information acquisition units；122- projection screen position acquisition units；130- offsets
Amount acquisition module；131- coordinates set up unit；132- coordinate value acquiring units；133- side-play amount acquiring units；140- projected areas
Domain correction module；141- angle correcting units；142- displacement correction units；150- view fields judge module again；160- is projected
Scene image pretreatment module；200- processors；300- memories；400- projection screens；500- view fields.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Present invention implementation generally described and illustrated in accompanying drawing herein
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.
Fig. 1 is referred to, a kind of view field's correction system 100 is the embodiment of the invention provides, projector equipment 10 is applied to.
The projector equipment 10 also includes processor 200 and memory 300.
Directly or indirectly it is electrically connected between the processor 200 and the memory 300, to realize the transmission of data
Or interaction.For example, both realize being electrically connected with by communication bus or holding wire.View field's correction system 100 includes
At least one the memory 300 can be stored in the form of software or firmware (firmware) in software function module.Institute
Processor 200 is stated for performing the executable module stored in memory 300, such as described view field's correction system 100 is wrapped
The software function module or computer program for including.
Wherein, memory 300 may be, but not limited to, random-access memory (Random Access memory,
RAM), read-only storage (Read Only Memory, ROM), programmable read only memory (Programmable Read-Only
Memory, PROM), erasable read-only memory (Erasable Programmable Read-Only Memory, EPROM),
Electricallyerasable ROM (EEROM) (Electric Erasable Programmable Read-Only Memory, EEPROM) etc..
Wherein, memory 300 is used for storage program, and the processor 200 performs described program, this hair after execute instruction is received
The method of the flow definition disclosed in bright embodiment any embodiment can apply in processor 200, or by processor
200 realize.
Processor 200 is probably a kind of IC chip, the disposal ability with signal.Above-mentioned processor 200 can be with
It is general processor, including central processing unit (Central Processing Unit, abbreviation CPU), network processing unit
(Network Processor, abbreviation NP) etc..Can also be digital signal processor (DSP), application specific integrated circuit (ASIC),
It is field programmable gate array (FPGA) or other PLDs, discrete gate or transistor logic, discrete hard
Part component, it is possible to achieve or perform disclosed each method, step and logic diagram in the embodiment of the present invention.
It is appreciated that the structure shown in Fig. 1 be only illustrate, the projector equipment 10 can also include than shown in Fig. 1 more
Many or less components, or with the configuration different from shown in Fig. 1.Each component shown in Fig. 1 can be using hardware, soft
Part or its combination are realized.
Fig. 2 is referred to, is the functional block diagram that a kind of view field provided in an embodiment of the present invention corrects system 100.
View field's correction system 100 is applied to the projector equipment 10 described in Fig. 1.View field's correction system 100 includes
Projection scene image collection module 110, projection screen position acquisition module 120, side-play amount acquisition module 130 and view field school
Positive module 140.
Wherein, the projection scene image collection module 110 is used to obtain the projection scene image of the projector equipment 10,
Ambient image of the projection scene image where projection screen image and projection screen is constituted.
It should be noted that in the present embodiment, being additionally provided with using the projector equipment 10 of view field's bearing calibration
Camera head.The camera head can be the built-in camera that the projector equipment 10 is carried, or with the projection
The plug-in camera of the connection of equipment 10.In the present embodiment, after the projector equipment 10 is started shooting, the projection scene image obtains mould
Block 110 sends projection scene image and obtains order to the camera head, starts the camera head, obtains the projector equipment
10 projection scene image.
The projection screen position acquisition module 120 is used for according to where the projection screen image and the projection screen
Ambient image position the position of the projection screen.
During the use of projector equipment 10, in order to ensure good visual experience, the projector equipment 10 is commonly
Projection screen is configured with, the projection screen can be mounted curtain, screen support frame, fold curtain etc..In the present embodiment, the projection field
Projection screen image is included in the projection scene image of the projector equipment 10 that scape image collection module 110 is obtained, to
The good audiovisual experience of projector equipment 10 is further ensured, it is necessary to control the view field of the projector equipment 10 to be located at the throwing
The center position of shadow screen, it is then desired to prejudge out the position of the projection screen.
Incorporated by reference to Fig. 3, specifically, in the present embodiment, the projection screen position acquisition module 120 is believed including position feature
Breath acquiring unit 121 and projection screen position acquisition unit 122.
Wherein, the position feature information acquisition unit 121 is used to obtain the marginal information and angle point of the projection screen
Information.
By the projection screen be mounted as a example by mounting curtain curtain design feature generally rectangular shaped rim be internally provided with it is white
Color screen area.Wherein, the rectangular shaped rim generally there are larger aberration compared to the white screen region, for example, described
Rectangular shaped rim can be black, brown or grey etc., also, the rectangular shaped rim is in outside compared to the white screen region
Raised structure.As can be seen here, the rectangular shaped rim for mounting curtain and the internal white screen region for setting are in color characteristic, shape
Shape feature and spatial relation characteristics aspect all have differences.
The position feature information acquisition unit 121 meets the knot for mounting curtain in detecting the projection screen image first
The regional location of structure feature, positions the regional location, and mounts the marginal information and angle point information of curtain described in record respectively.This reality
In applying example, position feature information acquisition unit 121 meets the design feature that mounts curtain in the projection screen image is detected
Regional location, and after positioning the regional location, can be that is, described to mount by extracting the characteristics of image of the projection screen image
The characteristics of image of curtain, is analyzed judgement, so that it is determined that the marginal information and angle point of the projection screen to described image feature
Information.Wherein, described image feature includes color characteristic, shape facility and spatial relation characteristics.
It should be noted that the position feature information acquisition unit 121 can also directly in the projection screen image
In detect four frames for mounting curtain, position the frame, the position of four frames is recorded respectively, re-record described
The regional location crossed two-by-two in four frames, i.e., the angle point information of described projection screen.
Further, it is to be appreciated that when the projection screen is screen support frame, folds curtain or other kinds of screen, on
The acquisition methods that rheme puts characteristic information are equally applicable.
The projection screen position acquisition unit 122 is used to obtain the projection according to the marginal information and angle point information
The position of screen.In the present embodiment, the edge of the projection screen obtained according to the position feature information acquisition unit 121
Information and angle point information, you can be accurately positioned the position of the projection screen.
The side-play amount acquisition module 130 is used for the projected area of the position of the projection screen and the projector equipment 10
The position in domain is compared, and obtains the side-play amount of the position of the position relative to the projection screen of the view field.
Incorporated by reference to Fig. 4, specifically, in the present embodiment, the side-play amount acquisition module 130 including coordinate set up unit 131,
Coordinate value acquiring unit 132 and side-play amount acquiring unit 133.
Wherein, the coordinate sets up unit 131 for setting up coordinate system.
In the present embodiment, set up after unit 131 sets up coordinate system in the coordinate, respectively obtain the projection screen position
The position of the projection screen and the view field position of the projector equipment 10 that modulus block 120 is obtained are mapped in the coordinate
System.It should be noted that wherein, the view field position of the projector equipment 10 can join from the system of the projector equipment 10
Directly read in number.
The coordinate value acquiring unit 132 is used to obtain the coordinate value of the position in the coordinate system of the projection screen,
Obtain the coordinate value of the position in the coordinate system of the view field.
Alternatively, seat of the position of the projection screen that the coordinate value acquiring unit 132 is obtained in the coordinate system
Scale value is the coordinate value of edge and angle point in the coordinate system of the projection screen.The position of the view field is described
The coordinate value of coordinate system is the coordinate value of the view field edge and angle point in the coordinate system.
It should be noted that in order to cause the trimming process of the view field more simple, alternatively, the seat
Scale value acquiring unit 132 can also obtain institute according to the edge of the projection screen and angle point in the coordinate value of the coordinate system
State the coordinate value of center line and central point in the coordinate system of projection screen.Wherein, the center line of the projection screen can be with
It is the cross central line of the projection screen, or the vertical center line of the projection screen.Equally, the coordinate value is obtained
Taking unit 132 can also obtain the projected area according to the view field edge and angle point in the coordinate value of the coordinate system
Coordinate value of the center line and central point in domain in the coordinate system.Wherein, the center line of the view field can be the throwing
The cross central line in shadow zone domain, or the vertical center line of the view field.
The side-play amount acquiring unit 133 is used for coordinate value and the view field position to the projection screen position
Coordinate value compare, obtain the side-play amount of the view field position relative to the projection screen position.Wherein, it is described
Side-play amount includes offset and shift offset.
View field's correction module 140 is used to carry out school to the position of the view field according to the side-play amount
Just.
Incorporated by reference to Fig. 5, specifically, in the present embodiment, view field's correction module 140 includes angle correcting unit
141 and displacement correction unit 142.
Wherein, the angle correcting unit 141 is used to enter the position of the view field according to the offset
Row angle correct.
The displacement correction unit 142 is used to carry out displacement to the position of the view field according to the shift offset
Correction.
To illustrate to enter the position of the 140 pairs of view fields of view field's correction module described in the present embodiment below
The process of row correction is described in detail.
Incorporated by reference to Fig. 6 A~Fig. 6 C, in the present embodiment, the edge of the projection screen 400 is AB, BC, CD and DA, angle point
It is A, B, C and D, two end points of vertical center line are respectively E and F, and central point is G.The edge of the view field 500 is
Ab, bc, cd and da, angle point are a, b, c and d, and two end points of vertical center line are respectively e and f, and central point is g.The projection
The position in region 500 is the vectorial ef relative to described relative to the offset of the position of the projection screen 400
The offset of vectorial EF, the displacement bias of the position of the position relative to the projection screen 400 of the view field 500
Amount is shift offsets of the central point g relative to the central point G.
In the present embodiment, the view field 500 can be corrected according to following operation rule.
S1=s*R；S2=S1+T
Wherein, S1To carry out the position of the view field 500 after angle correct, s is the position in Current projection region 500, R
It is spin matrix information, S2To carry out the position of the view field 500 after angle correct and displacement correction, that is, the projection after correcting
The position in region 500, T is ranging offset information.
For example, when offset of the vectorial ef relative to the vectorial EF is-θ (as shown in Figure 6A), to institute
The position for stating view field 500 carries out angle correct：
Displacement correction is carried out to the position for carrying out the view field 500 (as shown in Figure 6B) after angle correct again to can obtain
View field 500 (as shown in Figure 6 C) after correction.
Fig. 7 is referred to, is required to ensure that the view field after adjustment meets projection, in the present embodiment, alternatively,
The system also includes view field judge module 150 again.
Whether the view field that judge module 150 is used to judge after correction again of the view field meets projection requires, if
It is no, then correction is re-started, when judging again, untill the view field after the correction meets projection requirement.
In the present embodiment, it is described meet projection requirement can be that the view field is being located just at the projection screen just
The position of middle position, or the view field relative to the position of the projection screen side-play amount in default skew
In the range of amount allowable error.
It should be noted that in the present embodiment, in order to improve described in the projection scene image collection module 110 acquisition
The projection scene picture quality of projector equipment 10, to increase the projection that the projection screen position acquisition module 120 is obtained
The accuracy of the position of screen, in the present embodiment, view field's correction system 100 also includes projection scene image preprocessing
Module 160.
The projection scene image pre-processing module 160 is used for what the projection scene image collection module 110 was obtained
The projection scene image carries out noise reduction process.
Specifically, in the present embodiment, noise reduction process is carried out to the projection scene image by gaussian filtering, to improve
The signal to noise ratio of projection scene image is stated, and then strengthens the definition of the projection scene image.
Fig. 8 is referred to, is a kind of flow chart of projection screen bearing calibration provided in an embodiment of the present invention, methods described should
For the projector equipment 10 described in Fig. 1.It should be noted that, the method that the present invention is provided is not with Fig. 8 and as shown below specific
Order is limitation.The specific steps shown in Fig. 8 will be described in detail below.
Step S100, obtains the projection scene image of the projector equipment 10, and the projection scene image is by projection screen
Ambient image where image and projection screen is constituted.
In the present embodiment, the projection scene image collection module 110 that step S100 can be as shown in Figure 2 is performed.
Step S200, the ambient image according to where the projection screen image and the projection screen positions the projection
The position of screen.
In the present embodiment, the projection screen position acquisition module 120 that step S200 can be as shown in Figure 2 is performed.
Incorporated by reference to Fig. 9, specifically, in the present embodiment, step S200 can include two sons of step S210 and step S220
Step.
Step S210, obtains the marginal information and angle point information of the projection screen.
In the present embodiment, the position feature information acquisition unit 121 that step S210 can be as shown in Figure 3 is performed.
Step S220, the position of the projection screen is obtained according to the marginal information and angle point information.
In the present embodiment, the projection screen position acquisition unit 122 that step S220 can be as shown in Figure 3 is performed.
Step S300, the position of the projection screen is compared with the position of the view field of the projector equipment 10
It is right, obtain the side-play amount of the position of the position relative to the projection screen of the view field.
In the present embodiment, the side-play amount acquisition module 130 that step S300 can be as shown in Figure 2 is performed.
Incorporated by reference to Figure 10, specifically, in the present embodiment, step S300 can include step S310, step S320 and step
The sub-steps of S330 tri-.
Step S310, sets up coordinate system.
In the present embodiment, the coordinate that step S300 can be as shown in Figure 4 is set up unit 131 and is performed.
Step S320, obtains the coordinate value of the position in the coordinate system of the projection screen, obtains the view field
Position the coordinate system coordinate value.
In the present embodiment, the coordinate value acquiring unit 132 that step S320 can be as shown in Figure 4 is performed.
Step S330, the coordinate value of coordinate value and the view field position to the projection screen position compares
It is right, obtain side-play amount of the view field position relative to the projection screen position.
In the present embodiment, the side-play amount acquiring unit 133 that step S330 can be as shown in Figure 4 is performed.
Step S400, is corrected according to the side-play amount to the position of the view field.
In the present embodiment, view field's correction module 140 that step S400 can be as shown in Figure 2 is performed.
Incorporated by reference to Figure 11, specifically, in the present embodiment, step S400 can include two sons of step S410 and step S420
Step.
Step S40, angle correct is carried out according to the offset to the position of the view field.
In the present embodiment, the angle correcting unit 141 that step S410 can be as shown in Figure 5 is performed.
Step S420, displacement correction is carried out according to the shift offset to the position of the view field.
In the present embodiment, the displacement correction unit 142 that step S420 can be as shown in Figure 5 is performed.
Figure 12 is referred to, is required to ensure that the view field after correction can meet projection, in the present embodiment, performed
After step S400, methods described can also include step S500, judge whether the view field after correction meets projection and require,
If it is not, correction is then re-started, when judging again, untill the view field after the correction meets projection requirement.
In the present embodiment, judge module 150 is performed again for the view field that step S500 can be as shown in Figure 6.
In the present embodiment, before step S200 is performed, methods described can also include step S600, to the projection field
Scape image carries out noise reduction process.
In the present embodiment, the projection scene image pre-processing module 160 that step S600 can be as shown in Figure 6 is performed.
In sum, view field's bearing calibration provided in an embodiment of the present invention and system, by obtaining projector equipment 10
Projection scene image, position of positioning projection's screen in scene is projected and compares position and the projector equipment of projection screen
The position of 10 view field, obtains the side-play amount of the position relative to the position of projection screen of view field, so that according to this
Side-play amount is corrected to the position of view field, the automatic correction of the view field of projector equipment 10 is realized, relative to biography
Not only there is convenience for the mode that system is manually adjusted, and the good audiovisual experience of projector equipment 10 can be ensured.
In embodiment provided herein, it should be understood that disclosed method and system, it is also possible to by other
Mode realize.Device embodiment described above is only schematical, for example, the flow chart and block diagram in accompanying drawing show
Devices in accordance with embodiments of the present invention, the architectural framework in the cards of method and computer program product, function and behaviour
Make.At this point, each square frame in flow chart or block diagram can represent a part for module, program segment or code, institute
Stating a part for module, program segment or code is used for the executable instruction of the logic function that realization specifies comprising one or more.
It should also be noted that in some are as the implementation replaced, the function of being marked in square frame can also be with different from accompanying drawing
The order for being marked occurs.For example, two continuous square frames can essentially be performed substantially in parallel, they sometimes can also be by
Opposite order is performed, and this is depending on involved function.It is also noted that each square frame in block diagram and/or flow chart,
And the combination of the square frame in block diagram and/or flow chart, can be with the function or action for performing regulation it is special based on hardware
System realize, or can be realized with the combination of computer instruction with specialized hardware.
It should be noted that herein, term " including ", "comprising" or its any other variant be intended to non-row
His property is included, so that process, method, article or equipment including a series of key elements not only include those key elements, and
And also include other key elements being not expressly set out, or also include for this process, method, article or equipment institute are intrinsic
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including institute
Also there is other identical element in process, method, article or the equipment of stating key element.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.It should be noted that：Similar label and letter exists
Similar terms is represented in following accompanying drawing, therefore, once being defined in a certain Xiang Yi accompanying drawing, then it is not required in subsequent accompanying drawing
It is further defined and is explained.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of view field's bearing calibration, is applied to projector equipment, it is characterised in that methods described includes：
The projection scene image of the projector equipment is obtained, the projection scene image is by projection screen image and the projection screen
Ambient image where curtain is constituted；
Ambient image according to where the projection screen image and the projection screen positions the position of the projection screen；
The position of the projection screen is compared with the position of the view field of the projector equipment, the projected area is obtained
Side-play amount of the position in domain relative to the position of the projection screen；And
The position of the view field is corrected according to the side-play amount.
2. view field's bearing calibration according to claim 1, it is characterised in that described according to the projection screen image
The step of position of the projection screen being positioned with the ambient image where the projection screen, including：
Obtain the marginal information and angle point information of the projection screen；And
The position of the projection screen is obtained according to the marginal information and angle point information.
3. view field's bearing calibration according to claim 1 and 2, it is characterised in that described by the projection screen
Position is compared with the position of the view field of the projector equipment, obtains the position of the view field relative to the throwing
The step of side-play amount of the position of shadow screen, including：
Set up coordinate system；
The coordinate value of the position in the coordinate system of the projection screen is obtained, the position of the view field is obtained in the seat
Mark the coordinate value of system；And
The coordinate value of coordinate value and the view field position to the projection screen position is compared, and obtains the projection
Side-play amount of the regional location relative to the projection screen position.
4. view field's bearing calibration according to claim 1, it is characterised in that the side-play amount includes offset
And shift offset, it is described the step of be corrected to the position of the view field according to the side-play amount, including：
Angle correct is carried out to the position of the view field according to the offset；And
Displacement correction is carried out to the position of the view field according to the shift offset.
5. view field's bearing calibration according to claim 1, it is characterised in that methods described also includes：
Judge whether the view field after correction meets projection and require, if it is not, correction is then re-started, when judging again,
Untill view field after the correction meets projection requirement.
6. a kind of view field's correction system, is applied to projector equipment, it is characterised in that the system includes：
Projection scene image collection module, the projection scene image for obtaining the projector equipment, the projection scene image
Ambient image where projection screen image and projection screen is constituted；
Projection screen position acquisition module, for the ambient image according to where the projection screen image and the projection screen
Position the position of the projection screen；
Side-play amount acquisition module, for the position of the projection screen to be carried out with the position of the view field of the projector equipment
Compare, obtain the side-play amount of the position of the position relative to the projection screen of the view field；And
View field's correction module, for being corrected to the position of the view field according to the side-play amount.
7. view field according to claim 6 corrects system, it is characterised in that the projection screen position acquisition mould
Block, including：
Position feature information acquisition unit, marginal information and angle point information for obtaining the projection screen；And
Projection screen position acquisition unit, the position for obtaining the projection screen according to the marginal information and angle point information
Put.
8. the view field according to claim 6 or 7 corrects system, it is characterised in that the side-play amount acquisition module, bag
Include：
Coordinate sets up unit, for setting up coordinate system；
Coordinate value acquiring unit, coordinate value of the position in the coordinate system for obtaining the projection screen obtains the throwing
Coordinate value of the position in shadow zone domain in the coordinate system；And
Side-play amount acquiring unit, the coordinate value for the coordinate value to the projection screen position and the view field position enters
Row is compared, and obtains side-play amount of the view field position relative to the projection screen position.
9. view field according to claim 6 corrects system, it is characterised in that the side-play amount includes offset
And shift offset, view field's correction module, including：
Angle correcting unit, for carrying out angle correct to the position of the view field according to the offset；And
Displacement correction unit, for carrying out displacement correction to the position of the view field according to the shift offset.
10. view field according to claim 6 corrects system, it is characterised in that the system also includes view field
Judge module, requires for judging whether the view field after correction meets projection again, if it is not, correction is then re-started, until
When judging again, untill the view field after the correction meets projection requirement.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710173002.4A CN106937101A (en) | 2017-03-22 | 2017-03-22 | View field's bearing calibration and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710173002.4A CN106937101A (en) | 2017-03-22 | 2017-03-22 | View field's bearing calibration and system |
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| CN106937101A true CN106937101A (en) | 2017-07-07 |
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| CN201710173002.4A Pending CN106937101A (en) | 2017-03-22 | 2017-03-22 | View field's bearing calibration and system |
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