CN107155095B - Projection screen region method of adjustment and projection screen region adjust device - Google Patents
Projection screen region method of adjustment and projection screen region adjust device Download PDFInfo
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- CN107155095B CN107155095B CN201610124338.7A CN201610124338A CN107155095B CN 107155095 B CN107155095 B CN 107155095B CN 201610124338 A CN201610124338 A CN 201610124338A CN 107155095 B CN107155095 B CN 107155095B
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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
- H04N9/3185—Geometric adjustment, e.g. keystone or convergence
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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
- H04N9/3147—Multi-projection systems
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
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- Physics & Mathematics (AREA)
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- Controls And Circuits For Display Device (AREA)
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Abstract
The invention discloses a kind of projection screen region methods of adjustment, it include: that splicing calibration is carried out by the perspective plane to multiple projection arrangements, form initial projections screen area, and calibration result parameter is obtained, the calibration result parameter includes the position corresponding relationship needed between the region of projected picture and the initial projections screen area；The adjustment operation that the projection screen region is adjusted according to instruction from the user, establish the region for needing projected picture and the region for needing projected picture based on the adjustment operate and by the mapping relations between the region adjusted for needing projected picture of formation；Based on the mapping relations, need projected picture to be mapped to described adjusted to need projected picture by described；And it is based on the calibration result parameter, adjusted projected picture is needed to be mapped on the initial projections screen area for described.In addition, the invention also discloses a kind of projection screen regions to adjust device.
Description
Technical field
The present invention relates to projection screen region methods of adjustment and projection screen region to adjust device.
Background technique
Under many application scenarios, it usually needs drawn using the perspective plane splicing one width large screen of composition of more projectors
The desktop images of PC are shown on large screen and are demonstrated by face, such as in large-scale Demonstration Hall, outdoor advertising or are built public
When department's displaying is related to model on a large scale.It is often necessary to which the large screen projection formed using the perspective plane splicing of projector is specific
In the range of.
Currently, to the adjustment in the projection screen region (drop shadow spread) of multi-screen projector there are mainly two types of method:
First method is to carry out the splicing calibration of projector behind the position of more projectors again by adjusting repeatedly manually,
Finally fall projection screen region in a specific range.However, this method needs manually adjust, adjustment process is time-consuming to take
Power, and precision it is difficult to ensure that.
Another method is the setting stage adjustment four that the interface UI is utilized by program before the calibration splicing of projector
Static settings projection screen region is come in the position of a corner scaling point, that is to say, that sets drop shadow spread before calibration splicing.
Product ScalableDesktopClassic currently on the market supports this method.But this method can only be thrown in splicing
It is set in the specific settings stage before shadow, once dynamic adjustment cannot be carried out after setting again.Moreover, because should
Method is to pull four scaling points under the black state before calibration splicing projection screen region is arranged, thus setting acts
Also not intuitive enough and accurate.
Summary of the invention
The present invention be in order to solve the problems, such as it is above-mentioned at least one and complete, can be real-time, dynamic the purpose is to provide one kind
State, intuitive, accurately adjustment projection screen region (size and shape) method and apparatus.
In order to achieve the above object, according to an aspect of the present invention, providing a kind of projection screen region method of adjustment, feature
It is, comprising:
Projection screen regional calibration step, in the projection screen regional calibration step, by multiple projection arrangements
Perspective plane carry out splicing calibration, form initial projections screen area, and obtain calibration result parameter, the calibration result parameter
Including needing the position corresponding relationship between the region of projected picture and the initial projections screen area；
Adjustment mapping establishment step is adjusted according to instruction from the user and is projected in adjustment mapping establishment step
The adjustment of screen area operates, and establishes the region for needing projected picture and the region for needing projected picture and is based on the adjustment
Operation and by the mapping relations between the region adjusted for needing projected picture of formation；
Projected picture mapping step is needed, is needed in projected picture mapping step described, the mapping relations are based on, it will be described
Needing projected picture to be mapped to described adjusted needs projected picture；And
Picture mapping step after adjustment after the adjustment in picture mapping step, is based on the calibration result parameter, will
It is described adjusted projected picture to be needed to be mapped on the initial projections screen area.
Projection screen region provided by the present invention method of adjustment can be calibrated in the splicing on the perspective plane of more projectors
The projection stage of PC desktop after completion indicates the adjustment operation in adjustment projection screen region by user at any time, in real time,
Dynamically, projection screen region (shape and size) intuitively, accurately are adjusted.Caused tune is manually adjusted in this way, can overcome
The defect that section process is time-consuming and laborious, precision is difficult to ensure, and can overcome and be carried out within the specific settings stage before splicing projection
Dynamic adjustment and not intuitive enough the and accurate problem of adjustment can not be carried out caused by setting, thus provide the user with it is more convenient and
More efficient adjustment.
Further, it in the method for adjustment of the projection screen region, in adjustment mapping establishment step, needs to throw by described
The region division of shadow picture is multiple subregions, and the region adjusted for needing projected picture is accordingly divided into multiple
Subregion, and each described subregion by establishing the region for needing projected picture adjusted need to project with described
The mapping between corresponding subregion in the subregion in the region of picture, to obtain the mapping relations.
Further, in the method for adjustment of the projection screen region, the region for needing projected picture is divided into multiple squares
The subregion of shape, the region adjusted for needing projected picture are accordingly divided into the sub-district of multiple approximate parallelograms
Domain.
Further, in the method for adjustment of the projection screen region, according to the subregion and correspondence of rectangle described in each
The apex coordinate of subregion of the approximate parallelogram establish the mapping.
It is multiple sub-rectangular areas by the way that the region division of projected picture will be needed, and by need adjusted in embodiment
The region of projected picture is accordingly divided into the subregion of multiple approximate parallelograms, and adequately establishing needs projected picture
Mapping relations between region and the region adjusted for needing projected picture are possibly realized.
Further, described after the projection screen regional calibration step in the method for adjustment of the projection screen region
It needs to show that screen adjusts user interface on the region of projected picture；In adjustment mapping establishment step, according to the user
Via the adjustment operation indicated by screen adjustment user interface, the mapping relations are established, and are reflected based on described
Relationship is penetrated, screen adjustment user interface is mapped into screen adjusted and adjusts user interface, and is based on the calibration
The screen adjustment user interface adjusted is mapped on the initial projections screen area by result parameter.
In embodiment, by showing screen on the region for need projected picture after the splicing of projector calibration is completed
It adjusts user interface and indicates adjustment operation for user, adjust projection screen region for user and provide convenience.
Further, in the method for adjustment of the projection screen region, after the adjustment maps establishment step, come when receiving
From the user when switching to the instruction for needing projected picture, start described to need projected picture mapping step.
According to another aspect of the present invention, a kind of projection screen region adjustment device is provided, comprising:
Projection screen regional calibration portion, projection screen regional calibration portion by the perspective plane to multiple projection arrangements into
Row splicing calibration, forms initial projections screen area, and obtain calibration result parameter, and the calibration result parameter includes needing to project
Position corresponding relationship between the region of picture and the initial projections screen area；
Portion is established in adjustment mapping, and the adjustment mapping establishes portion according to instruction adjustment from the user projection screen region
Adjustment operation, establish the region for needing projected picture and the region for needing projected picture be based on adjustment operation and by shape
At the region adjusted for needing projected picture between mapping relations；
Projected picture mapping portion is needed, it is described that projected picture mapping portion is needed to be based on the mapping relations, shadowgraph is needed by described
Face, which is mapped to, described adjusted needs projected picture；And
Picture mapping portion after adjustment, picture mapping portion is based on the calibration result parameter after the adjustment, by the adjustment
Afterwards need projected picture to be mapped on the initial projections screen area.
Further, in the projection screen region adjustment device, the adjustment mapping portion of foundation includes: sub-zone dividing list
The region division for needing projected picture is multiple subregions by member, the sub-zone dividing unit, and will be described adjusted
The region of projected picture is needed accordingly to be divided into multiple subregions, and unit is established in mapping, the mapping is established unit and passed through
Establish each subregion in the region for needing projected picture and the institute in the region adjusted for needing projected picture
The mapping between the corresponding subregion in subregion is stated, to obtain the mapping relations.
Further, in the projection screen region adjustment device, the adjustment device further comprises picture display part,
After projection screen regional calibration portion carries out splicing calibration to the perspective plane of multiple projection arrangements, the picture display part exists
Show that screen adjusts user interface on the region for needing projected picture, the adjustment map the portion that establishes according to the user via
The adjustment operation indicated by the screen adjustment user interface, establishes the mapping relations, and portion is established in the adjustment mapping
Further comprise: screen adjusts user interface mapping portion, and screen adjustment user interface mapping portion is based on the mapping relations,
Screen adjustment user interface is mapped into screen adjustment user interface adjusted, and screen adjusts user circle after adjustment
Face mapping portion is based on the calibration result parameter, and the screen adjustment user interface adjusted is mapped to the initial throwing
On shadow screen area.
Further, in the projection screen region adjustment device, the adjustment device further comprises screen switching portion, institute
Screen switching portion is stated for needing to throw the picture shown on the picture display part with described in screen adjustment user interface
It is switched between shadow picture.
As described above, using projection screen region according to the present invention method of adjustment and projection screen region adjustment dress
It sets, can be realized real-time, the dynamic, intuitive and accurate adjustment to adjustment projection screen region, therefore Shi Sheng can be saved for user
Power provides more convenient and more efficient adjustment.
Detailed description of the invention
Fig. 1 is the flow chart for showing projection screen region method of adjustment according to an aspect of the present invention.
Fig. 2 is the block diagram for showing projection screen region adjustment device according to another aspect of the present invention.
Fig. 3 (a) is to show that the projection screen region method of adjustment of embodiment according to the present invention and its device are applied
The composition figure of one example of optical projection system.
Fig. 3 (b) be show Fig. 3 (a) in projector 301a, 301b, 301c, 301d perspective plane 304a, 304b,
304c, 304d, and initial projections screen area is formed by after carrying out calibration splicing to perspective plane 304a, 304b, 304c, 304d
The schematic diagram in domain 305.
Fig. 4 is the block diagram for showing the projection screen region adjustment device 303 in Fig. 3 (a).
Fig. 5 is the projection screen region tune for being related to being executed by the projection screen region adjustment device 303 in Fig. 3 (a) and Fig. 4
The flow chart of the process of adjusting method.
Fig. 6 be show establish embodiment according to the present invention screen adjustment user interface 601 region with it is adjusted
Screen adjusts the figure of the mapping relations between the region of user interface 602.
Specific embodiment
It is next referring to the drawings that the present invention will be described in detail.In the accompanying drawings, identical component using identical reference marker come
It indicates.
According to an aspect of the present invention, a kind of projection screen region method of adjustment is provided.Fig. 1 is to show according to the present invention
One aspect projection screen region method of adjustment flow chart.As shown in Figure 1, projection according to an aspect of the present invention
Screen area method of adjustment includes:
Projection screen regional calibration step S101, in projection screen regional calibration step S101, by multiple projections
The perspective plane of device carries out splicing calibration, forms initial projections screen area, and obtain calibration result parameter, calibration result ginseng
Number includes the position corresponding relationship needed between the region of projected picture and initial projections screen area；
Adjustment mapping establishment step S102 is adjusted in adjustment mapping establishment step S102 according to instruction from the user
The adjustment in projection screen region operates, establish need the region of projected picture with need the region of projected picture to be based on adjustment operation and incite somebody to action
The mapping relations between the region adjusted for needing projected picture formed；
Projected picture mapping step S103 is needed, in needing projected picture mapping step S103, mapping relations is based on, will need to throw
Shadow picture, which is mapped to, adjusted needs projected picture；And
Picture mapping step S104 after adjustment after the adjustment in picture mapping step S104, is based on calibration result parameter, will
It is adjusted that projected picture is needed to be mapped on initial projections screen area.
According to another aspect of the present invention, a kind of projection screen region adjustment device is provided.Fig. 2 is display according to this hair
The block diagram of the projection screen region adjustment device of bright other side.As shown in Fig. 2, according to another aspect of the present invention
Projection screen region adjusts device
Projection screen regional calibration portion 201, projection screen regional calibration portion 201 pass through the perspective plane to multiple projection arrangements
Splicing calibration is carried out, forms initial projections screen area, and obtain calibration result parameter, which includes needing to project
Position corresponding relationship between the region and initial projections screen area of picture；
Portion 202 is established in adjustment mapping, and adjustment mapping establishes portion 202 and adjusts projection screen region according to instruction from the user
Adjustment operation, establish need projected picture region and need the region of projected picture based on adjustment operation and will be after the adjustment of formation
The mapping relations needed between the region of projected picture；
Projected picture mapping portion 203 is needed, needs projected picture mapping portion 203 to be based on mapping relations, projected picture will be needed to map
Projected picture is needed at adjusted；And
Picture mapping portion 204 after adjustment, picture mapping portion 204 is based on calibration result parameter after adjustment, by need adjusted
Projected picture is mapped on initial projections screen area.
Next, specifically describing the embodiment of the present invention with reference to Fig. 3 (a) to Fig. 6.In the embodiment described below,
The projection stage of PC desktop images after being completed with the splicing calibration on the perspective plane of projector is by providing a user screen
User interface is adjusted to implement the adjustment in projection screen region as example.But the present invention is not limited thereto, can be used and is included
Any implementation in main scope of the invention implements the present invention.
Fig. 3 (a) is to show that the projection screen region method of adjustment of embodiment according to the present invention and its device are applied
The composition figure of one example of optical projection system.As shown in Fig. 3 (a), optical projection system 300 includes the 4 of the form arrangement thrown with 2 rows 2
Platform projector 301 (301a, 301b, 301c, 301d) and a PC302.Here, the quantity of projector 301 and its arrangement side
Formula is only to illustrate, and be not intended to limit the present invention.Can select according to the actual situation projector 301 quantity and its specific cloth
Mode is set, for example, 4 projectors arranged in the form of throwing with 1 row 4.
In embodiment, projector 301a, 301b, 301c, 301d in Fig. 3 (a) can for example be generated respectively such as Fig. 3 (b)
Shown in perspective plane 304a, 304b, 304c, 304d, and perspective plane 304a, 304b, 304c, 304d are as shown in Fig. 3 (b)
Splice overlapping like that.In embodiment, carried out by being formed by picture to perspective plane 304a, 304b, 304c, 304d splicing overlapping
Splicing calibration, the large screen projection face for being capable of forming the maximum inscribe rectangle for being formed by picture as splicing overlapping are (initial
Projection screen region), such as the initial projections screen area 305 in Fig. 3 (b).User will need the content projected to show in PC302
Desktop on, comprising needing the desktop images (below also referred to as " needing projected picture ") of the PC302 of content projected that will be thrown
Shadow is on the large screen projection face, for the purposes such as showing, demonstrating.It in the following description, for convenience's sake, will be comprising needing
The desktop images of the PC302 of the content of projection are otherwise referred to as the desktop images or desktop images of PC302.
As shown in Fig. 3 (a), PC302 includes the projection screen region adjustment device 303 of embodiment according to the present invention.This
Projection screen region provided by the embodiment of invention adjustment device 303 can be realized to as described above by projector 301a,
It is (initial that the splicing calibration of perspective plane 304a, 304b, 304c, 304d of 301b, 301c, 301d are formed by large screen projection face
Projection screen region 305) carry out real-time, dynamic, intuitive and accurate adjustment.
Fig. 4 shows the block diagram of the adjustment of the projection screen region in Fig. 3 (a) device 303.
As shown in figure 4, projection screen region adjustment device 303 includes projection screen regional calibration portion 201, sub-zone dividing
Unit 404, mapping establish unit 405, need picture mapping portion 204 after projected picture mapping portion 203, adjustment, wherein subregion is drawn
Sub-unit 404 and mapping establish the composition adjustment mapping of unit 405 and establish portion 202.In addition, projection screen region adjusts device 303
It further comprise shielding after adjustment indicates monitoring portion 403, picture display part 402, screen adjustment user interface mapping portion 406, adjustment
Curtain adjustment user interface mapping portion 407 and screen switching portion 410.
Projection screen regional calibration portion 201 passes through the perspective plane to 4 projectors 301 (304a, 304b, 304c, 304d)
304a, 304b, 304c, 304d carry out splicing calibration, form initial projections screen area 305, and obtain calibration result parameter, should
Calibration result parameter includes the position corresponding relationship between the region of the desktop images of PC302 and initial projections screen area 305.
The display of picture display part 402 indicates the screen adjustment user interface of adjustment operation or the table of PC302 for user
Face picture (needs projected picture).In embodiment, when projection screen regional calibration portion 201 completes the perspective plane to 4 projectors 301
Splicing calibration after, picture display part 402 can show on the region of the desktop images of PC302 screen adjustment user interface.
Adjustment instruction monitoring portion 403 monitoring adjusts projection screen about instruction via screen adjustment user interface from user
The adjustment operation in curtain region.
Sub-zone dividing unit 404 when receive come self-adjusting instruction monitoring portion 403 about user adjustment operation refer to
After showing, the region division by screen adjustment user interface is multiple subregions, and the region of screen adjustment user interface is based on
Above-mentioned adjustment operates and the region of the screen adjusted of formation adjustment user interface is accordingly divided into multiple subregions.
Mapping establish unit 405 by establish screen adjust user interface region each sub-regions with it is adjusted
Screen adjusts the mapping between the corresponding subregion in the subregion in the region of user interface, to obtain the area for needing projected picture
Domain and need the region of projected picture based on adjustment operation and by the mapping between the region adjusted for needing projected picture of formation
Relationship.
Screen adjusts user interface mapping portion 406 and is based on mapping relations, after screen adjustment user interface is mapped to adjustment
Screen adjust user interface.
Screen adjustment user interface mapping portion 407 is based on calibration result parameter after adjustment, and screen adjusted is adjusted and is used
On family interface image to initial projections screen area.
The picture that screen switching portion 410 is used to show on picture display part 402 adjusts user interface and PC302 in screen
Desktop images between switch over.
Need projected picture mapping portion 203 when by screen switching portion 410 by the picture shown on picture display part 402 from screen
When curtain adjustment screen switching is the desktop images of PC302, mapping relations are based on, after the desktop images of PC302 are mapped to adjustment
PC302 desktop images；And
Picture mapping portion 204 is based on calibration result parameter after adjustment, and the desktop images of PC302 adjusted are mapped to just
On beginning projection screen region 305.
Fig. 5 is the projection screen region tune for being related to being executed by the projection screen region adjustment device 303 in Fig. 3 (a) and Fig. 4
The flow chart of the process of adjusting method.
In the optical projection system 300 shown in Fig. 3 (a), after user tentatively adjusts the position of 4 projectors 301
Splicing calibration, shape are carried out to perspective plane 304a, 304b, 304c, 304d of 4 projectors 301 (304a, 304b, 304c, 304d)
At initial projections screen area 305.Flow chart shown in Fig. 5 is calibrated to the splicing of perspective plane 304a, 304b, 304c, 304d
Step S501 in carry out, wherein projection screen region adjust device 303 projection screen regional calibration portion 201 by by
Perspective plane 304a, 304b, 304c, 304d splicing overlapping are formed by image projection splicing calibrating pattern (pattern) and come to 4
Perspective plane 304a, 304b, 304c, 304d of projector 301 carry out splicing calibration, and obtain calibration result parameter.Here school
Quasi- result parameter include the desktop images of PC302 region with by splicing to perspective plane 304a, 304b, 304c, 304d
Calibration is formed by the position corresponding relationship between initial projections screen area 305.Further, position corresponding relationship is by region
The coordinate correspondence relationship of point embody.Splicing calibration in step S501 is generally adopted in existing multi-screen projection splicing
Technology.
In an embodiment according to the present invention, it after the splicing on the perspective plane to 4 projectors 301, which is calibrated, to be completed, connects
Get off, in step S502, picture display part 402 will show screen as shown in Figure 6 on the region of the desktop images of PC302
Curtain adjustment user interface 601.In embodiment, region shared by screen adjustment user interface 601 is the area of the desktop images of PC302
Domain.As shown in fig. 6, the region of screen adjustment user interface 601 is the rectangular area being made of vertex A, B, C, D.It is known
, after completing to the perspective plane splicing calibration of 4 projectors 301, will be shown on initial projections screen area 305
The desktop images of PC302, thus at this time will display screen adjustment user interface 601 on initial projections screen area 305.
In embodiment, it is that the instruction of the adjustment to projection screen region is carried out for user that screen, which adjusts user interface 601,
Interface, user can by screen adjust user interface 601 four vertex A, B, C, D drag indicate accordingly
Adjustment operation.Advantageously, because showing that screen adjusts user interface 601, thus user's energy on initial projections screen area 305
Enough screens by means of on initial projections screen area 305 adjust user interface 601 intuitively to determine the need for being adjusted
Whole operation, need to drag which vertex, to the dragging of which type of direction and drag to where, etc..
Next, adjustment instruction monitoring portion 403 has monitored whether adjustment operation from the user in step S503.Such as
Fruit user does not need to be adjusted projection screen region (no in step S503), then it can pass through screen switching portion
410 carry out screen switching.Screen switching portion 410 can for example be realized by some key on the keyboard of PC302.Work as user
When pressing the key, that is, indicate to indicate screen switching operation (in step S512 be), picture display part 402 will be PC302's
Show desktop images (needing projected picture) to be projected (step S513) on the region of desktop images.
On the other hand, if in step S503, adjustment instruction monitoring portion 403 monitors adjustment operation (step from the user
Suddenly it is in S503), then process continues to step S504.Here, it is operated about the adjustment of user, it is assumed that in Fig. 6
It drags shown in arrow, user utilizes mouse drag down apex coordinate B to B1.Correspondingly, adjustment instruction monitoring portion 403 will supervise
The changes in coordinates for measuring the vertex B in the region of screen adjustment user interface 601 is the coordinate of B1 point, and informs sub-zone dividing list
Member 404.
In step S504, sub-zone dividing unit 404 is by the rectangular area at the interface 601 being made of vertex A, B, C, D
Multiple sub-rectangular areas are divided into, and the convex quadrangle region at the interface 602 being made of vertex A, B1, C, D is accordingly drawn
It is divided into multiple approximate parallelogram subregions.Here, since the rectangular area at interface 601 is the region for needing projected picture, because
And the convex quadrangle region at the interface of formation 602 is needed projected picture based on adjustment operation by the rectangular area at interface 601
Region is based on adjustment operation and by the region adjusted for needing projected picture of formation.
In embodiment, for example, the rectangle region that sub-zone dividing unit 404 will be respectively correspondingly made of vertex A, B, C, D
Domain and the convex quadrangle region division being made of vertex A, B1, C, D are 8*8 sub-regions as shown in FIG. 6.In embodiment,
Subregion shown in fig. 6 is divided as follows: firstly, according to the quantity of the subregion of required division, according to equisection method obtain rectangle/
The Along ent on four side of upper and lower, left and right in convex quadrangle region；Later, by by top Along ent and following Along ent, the left side
Along ent straight line corresponding with the right Along ent connects and obtains each sub-regions.As shown in fig. 6, be made of vertex A, B, C, D
Rectangular area is divided into 8*8 sub-rectangular areas, and the convex quadrangle region being made of vertex A, B, C1, D is then by accordingly
It is divided into 8*8 approximate parallelogram subregion.
Here, the division for carrying out subregion to region is to be able to more quasi- in the mapping establishment process later by description
Really establish the mapping relations between the region for needing projected picture and the region adjusted for needing projected picture.Because in embodiment
Using establishing the region for needing projected picture and the area adjusted for needing projected picture using the linear interpolation method of affine transformation
Mapping relations between domain, and be only used for establishing between two parallelogram using the linear interpolation method of affine transformation
Mapping by the convex quadrangle that vertex A, B, C1, D are constituted no longer is parallelogram in Fig. 6, if only with once linear interpolation
Method is directly established by between the rectangular area constituted vertex A, B, C, D and the convex quadrangle being made of vertex A, B, C1, D
It maps, an apparent gap can be generated on the diagonal line of the convex quadrangle after mapping, cannot accurately embody above-mentioned mapping
Relationship.And in embodiment using convex quadrangle can be counted as multiple approximate parallelograms combination will by vertex A, B,
The convex quadrangle region division that C1, D are constituted is the subregion of multiple approximate parallelograms, then is established by linear interpolation method
The mapping of subregion is to obtain the mapping relations needed between the region of projected picture and the region adjusted for needing projected picture, solution
It has determined the above problem, so as to more accurately establish the mapping relations.
Next, mapping establishes unit 405 by establishing by after the division of sub-zone dividing unit 404 in step S505
Screen adjustment user interface 601 region each sub-regions and screen adjusted adjustment user interface 602 region
Subregion in corresponding subregion between mapping, come obtain screen adjustment user interface 601 region with it is adjusted
Screen adjusts the mapping relations between the region of user interface 602, namely obtains the region for needing projected picture and need adjusted
Mapping relations between the region of projected picture.
It is approximate with the region at interface 602 flat in each sub-regions for establishing the rectangular area at interface 601 in the step
When mapping in the subregion of row quadrangle between corresponding subregion, according to the subregion and correspondence of each rectangular area
Approximate parallelogram subregion vertex coordinate, the foundation mapped using known linear interpolation method.
Mapping between each sub-regions and corresponding subregion in the subregion in the region at interface 602 in the region at interface 601
After being established, the mapping relations between the region at interface 601 and the region at interface 602 are also just obtained.
Next, screen adjustment user interface mapping portion 406 establishes unit 405 based on mapping and is obtained in step S506
Screen adjustment user interface 601 is mapped to screen adjusted and adjusts user interface 602 by the mapping relations obtained.
Later, in step s 507, screen adjustment user interface mapping portion 407 is based on calibration result parameter after adjustment, will
Screen adjustment user interface 602 adjusted is mapped on initial projections screen area 305.At this point, user can see, screen
The projection screen region for adjusting user interface 601 is no longer initial projections screen area 305, and will be the adjustment based on user
The projection screen region adjusted of operation.
Next, on the one hand, user can be further via screen adjustment user interface instruction adjustment projection screen region
Adjustment operate (no in step S508).On the other hand, it if the user thinks that having adjusted projection screen region, does not need again
It is adjusted, then it can indicate screen switching operation (in step S508 be) by screen switching portion 410, for example,
Some key on keyboard as described above is pressed, picture display part 402 will show desktop on the region of the desktop images of PC302
Picture (needs projected picture).
Next, needing projected picture mapping portion 203 to establish based on mapping, unit 405 is obtained to be reflected in step S509
Relationship is penetrated, the desktop images (needing projected picture) of PC302 are mapped to the desktop images (need adjusted of PC302 adjusted
Projected picture).
Later, in step S510, picture mapping portion 204 is based on calibration result parameter after adjustment, by PC302 adjusted
Desktop images (adjusted to need projected picture) be mapped on initial projections screen area 305.At this point, the desktop of PC302 is drawn
The projection screen region in face (needing projected picture) will be the projection screen region adjusted of the adjustment operation based on user.
In addition, if user needs again to carry out projection screen region during projecting to desktop images
Adjustment can indicate screen switching operation (for example, by down key) (step S511, in S514 by screen switching portion 410
It is), at this point, will show that screen adjustment user interface indicates to adjust for user again on the region of the desktop images of PC302
Whole operation.
In view of the foregoing it is apparent that projection screen region provided by the present invention method of adjustment and projection screen region
Adjustment device can be realized the projection stage after the splicing calibration on the perspective plane of more projectors is completed, in real time, dynamic, straight
It sees, accurately adjust projection screen region.In this way, can overcome manually adjust caused by adjustment process is time-consuming and laborious, precision
The defect being difficult to ensure, and can overcome set within the specific settings stage before splicing projection and caused can not carry out
The problem that dynamic adjusts and adjustment is not intuitive and accurate enough, to provide the user with more convenient and more efficient adjustment.
Although by being described in conjunction with specific embodiments to the present invention, for the ordinary artisan of this field,
It will be apparent according to many substitutions, modification and the variation made after mentioned above.Therefore, when such substitution, modification
When being fallen into variation within the spirit and scope of appended claims, it should be included in the present invention.
Claims (7)
1. a kind of projection screen region method of adjustment characterized by comprising
Projection screen regional calibration step passes through the throwing to multiple projection arrangements in the projection screen regional calibration step
Shadow face carries out splicing calibration, forms initial projections screen area, and obtain calibration result parameter, the calibration result parameter includes
Need the position corresponding relationship between the region of projected picture and the initial projections screen area；
Adjustment mapping establishment step adjusts projection screen according to instruction from the user in adjustment mapping establishment step
The adjustment in region operates, and by the region division for needing projected picture is the subregion of multiple rectangles, and needs shadowgraph for described
The region in face is operated based on the adjustment and is accordingly divided into the region adjusted for needing projected picture of formation multiple close
Like the subregion of parallelogram, by establish the region for needing projected picture each described subregion and the adjustment
The mapping between corresponding subregion in the subregion in the region for needing projected picture afterwards described needs shadowgraph to establish
Mapping relations between the region in face and the region adjusted for needing projected picture；
Projected picture mapping step is needed, is needed in projected picture mapping step described, the mapping relations is based on, needs to throw by described
Shadow picture, which is mapped to, described adjusted needs projected picture；And
Picture mapping step after adjustment after the adjustment in picture mapping step, is based on the calibration result parameter, will be described
It is adjusted that projected picture is needed to be mapped on the initial projections screen area.
2. projection screen region as described in claim 1 method of adjustment, which is characterized in that
According to the subregion of rectangle described in each and the apex coordinate of the subregion of the corresponding approximate parallelogram
To establish the mapping.
3. projection screen region as claimed in claim 1 or 2 method of adjustment, which is characterized in that
After the projection screen regional calibration step, show that screen adjusts user circle on the region for needing projected picture
Face；
The adjustment mapping establishment step in, according to the user via the screen adjustment user interface indicated by described in
Adjustment operation establishes the mapping relations, and is based on the mapping relations, and screen adjustment user interface is mapped to tune
Screen after whole adjusts user interface, and is based on the calibration result parameter, and the screen adjusted is adjusted user circle
Face is mapped on the initial projections screen area.
4. projection screen region as claimed in claim 3 method of adjustment, which is characterized in that
After the adjustment maps establishment step, when receiving from the user when switching to the instruction for needing projected picture,
Start described to need projected picture mapping step.
5. a kind of projection screen region adjusts device characterized by comprising
Projection screen regional calibration portion, projection screen regional calibration portion are spelled by the perspective plane to multiple projection arrangements
Calibration is connect, forms initial projections screen area, and obtain calibration result parameter, the calibration result parameter includes needing projected picture
Region and the initial projections screen area between position corresponding relationship；
Portion is established in adjustment mapping, and adjustment of the portion according to instruction adjustment from the user projection screen region is established in the adjustment mapping
Operation, establish the region for needing projected picture and the region for needing projected picture based on the adjustment operate and by formation
Mapping relations between the region adjusted for needing projected picture, the adjustment mapping portion of foundation include sub-zone dividing unit with
And unit is established in mapping, the region division for needing projected picture is the sub-district of multiple rectangles by the sub-zone dividing unit
Domain, and the region adjusted for needing projected picture is accordingly divided into the subregion of multiple approximate parallelograms, institute
State each the described subregion and the need adjusted for mapping and establishing unit by establishing the region for needing projected picture
The mapping between corresponding subregion in the subregion in the region of projected picture, to obtain the mapping relations；
Projected picture mapping portion is needed, it is described that projected picture mapping portion is needed to be based on the mapping relations, need projected picture to reflect for described
Penetrating into described adjusted needs projected picture；And
Picture mapping portion after adjustment, picture mapping portion is based on the calibration result parameter after the adjustment, will be described adjusted
Projected picture is needed to be mapped on the initial projections screen area.
6. projection screen region as claimed in claim 5 adjusts device, which is characterized in that
The adjustment device further comprises picture display part, in projection screen regional calibration portion to multiple projection arrangements
After perspective plane carries out splicing calibration, the picture display part shows that screen adjusts user on the region for needing projected picture
Interface,
The adjustment mapping is established portion and is grasped according to the user via the adjustment indicated by screen adjustment user interface
Make, establish the mapping relations,
The adjustment maps the portion of foundation,
Screen adjusts user interface mapping portion, and screen adjustment user interface mapping portion is based on the mapping relations, will be described
Screen adjustment user interface maps to screen adjustment user interface adjusted, and
Screen adjusts user interface mapping portion after adjustment, is based on the calibration result parameter, and the screen adjusted is adjusted
User interface is mapped on the initial projections screen area.
7. projection screen region as claimed in claim 6 adjusts device, which is characterized in that
The adjustment device further comprises screen switching portion, and the screen switching portion on the picture display part for will show
Picture adjust user interface in the screen and described need to switch between projected picture.
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| CN201610124338.7A CN107155095B (en) | 2016-03-04 | 2016-03-04 | Projection screen region method of adjustment and projection screen region adjust device |
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| CN201610124338.7A CN107155095B (en) | 2016-03-04 | 2016-03-04 | Projection screen region method of adjustment and projection screen region adjust device |
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| CN107155095B true CN107155095B (en) | 2019-03-29 |
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| CN108255455B (en) * | 2018-02-05 | 2020-12-04 | 温州炘都工业设计有限公司 | Data interaction method of multi-screen spliced sign |
| CN111475693A (en) * | 2020-03-05 | 2020-07-31 | 北京掌行通信息技术有限公司 | Method, device and storage medium for screen projection display management |
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| CN102163138A (en) * | 2011-04-15 | 2011-08-24 | 杭州镭星科技有限公司 | Method for displaying independent pictures by splicing group of projectors on curved screen |
| CN103034029A (en) * | 2011-09-30 | 2013-04-10 | 精工爱普生株式会社 | Projector and control method for the projector |
| CN103533276A (en) * | 2013-10-21 | 2014-01-22 | 北京理工大学 | Method for quickly splicing multiple projections on plane |
| CN103716602A (en) * | 2013-12-24 | 2014-04-09 | 北京淳中视讯科技有限公司 | Method, device and system for geometry correction of projection image |
| CN104811637A (en) * | 2014-01-24 | 2015-07-29 | 株式会社理光 | Projection system, image processing apparatus, and correction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9514716B2 (en) * | 2012-10-19 | 2016-12-06 | Casio Computer Co., Ltd. | Projection apparatus, projection control apparatus, projection system, and projection state adjustment method |
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| CN102163138A (en) * | 2011-04-15 | 2011-08-24 | 杭州镭星科技有限公司 | Method for displaying independent pictures by splicing group of projectors on curved screen |
| CN103034029A (en) * | 2011-09-30 | 2013-04-10 | 精工爱普生株式会社 | Projector and control method for the projector |
| CN103533276A (en) * | 2013-10-21 | 2014-01-22 | 北京理工大学 | Method for quickly splicing multiple projections on plane |
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