CN105376540A - Projection display system and correction method of projection area - Google Patents
Projection display system and correction method of projection area Download PDFInfo
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- CN105376540A CN105376540A CN201410427021.1A CN201410427021A CN105376540A CN 105376540 A CN105376540 A CN 105376540A CN 201410427021 A CN201410427021 A CN 201410427021A CN 105376540 A CN105376540 A CN 105376540A
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Abstract
The invention provides a projection display system and a correction method of a projection area. A projection display device comprises a multiple protection devices, an image capturing device, a splicing device and a computing device. The projection devices are used for projecting multiple projection areas in a projection plane. The image capturing device is used for capturing the imaging image on the projection plane. The coumputing device judges the positions of the projection areas through the imaging image captured by the image capturing device. The display screen of the computing device is used for displaying a control interface which is corresponding to the display image area of the projection areas according to a ratio. The computing device dynamically adjusts the projection ratio of the images displayed in the projection areas through adjusting the positions of the control points in the display image area and the distance between control points.
Description
Technical field
Invention relates to a kind of optical projection system, and has the projection display system of multiple projection arrangement and the bearing calibration of view field in particular to a kind of.
Background technology
For fear of manufacture large-sized display still there is suitable difficulty, when needs share large picture to spectators to meet sound and light program time, multiple projection arrangement and host machine can be used at present to carry out picture splicing, the content that will share to be projected.Thus just can show broader effect screen, the number also by increasing projection arrangement increases brightness and the color representation of projection screen.The software that user also provides by host machine or control interface and manually adjust required imaging picture and effect.The Patents being carried out screen splicing technology by multiple stage projector has U.S. Patent Publication No. US20120320042, U.S. Patent Bulletin US6456339 and China Patent Publication No. CN101930724.
But, through perspective plane that spliced imaging picture may project because of projector and on-plane surface (such as, projector projects to arc, wavy or erose projection screen) and make imaging picture produce deformation; On the other hand, when multiple stage projector is when carrying out picture splicing, because the overlapping range of view field exceedes default size and makes imaging picture produce inevasible bright band, and then the projection quality of picture picture may be lowered into.Therefore, many manufacturers just continue the problems how thinking solves the generation when carrying out picture splicing, more to improve the picture splicing technology of multiple stage projector.
Summary of the invention
In view of this, the invention provides the bearing calibration of a kind of projection display system and view field.In this projection display system, the control interface that calculation element possesses additionally increasing the diversified function for adjusting view field, user can be allowed to avoid the adjustment because of image capture position or projector position improper by the control interface that calculation element possesses and cause projecting the decline of quality.
Other objects of the present invention and advantage can be further understood from the technical characteristic disclosed by the present invention.
For reaching one of above-mentioned or partly or entirely object or other objects, one embodiment of the invention provide a kind of projection display system, comprise multiple projection arrangement, picture capture device, splicing apparatus and calculation element.Multiple projection arrangement is respectively in order to be projeced on perspective plane by multiple view field, and wherein these view fields are adjacent or partly overlap.Picture capture device is in order to capture the view field on perspective plane.Calculation element judges the position of these view fields by these view fields that picture capture device captures.Calculation element comprises display screen.This display screen comprises the control interface in display frame region in order to display.Display frame region corresponds to view field to scale.Display frame region arranges multiple control point respectively, and calculation element carrys out the projection ratio of image frame shown in dynamic conditioning view field by the spacing adjusted between the position at control point and control point.
One embodiment of the invention provide a kind of projection display system, and display frame region has multiple region, and multiple region divides with many horizontal lines and many ordinates, and arranges control point in the point of intersection of horizontal line and ordinate.
One embodiment of the invention provide another kind of projection display system, and splicing apparatus also comprises: memory cell, for storing at least one two-dimensional coordinate array; Signal output unit, for output image signal; And image control unit, for coupling signal output unit and memory cell, produce multiple anamorphic image and control signal output unit according to input image and at least one two-dimensional coordinate array, image output is also delivered to projection arrangement.
One embodiment of the invention provide another kind of projection display system, the projection ratio that the interval wherein between two control points on this display frame region is adjusted to corresponding region in less then described multiple view field by calculation element is less, and the projection ratio being adjusted to corresponding region in larger then described multiple view field is larger.
One embodiment of the invention provide a kind of bearing calibration of view field.Multiple view fields of multiple projection arrangement are projected on perspective plane by the method respectively, and capture these view fields on perspective plane, and to judge the position of these view fields, wherein view field is adjacent or partly overlap.In control interface, the display frame region controlling interface arranges multiple control point respectively, and wherein display frame region corresponds to these view fields to scale.The projection ratio of image frame shown in these view fields of dynamic conditioning is carried out by the spacing adjusted between the position at control point and control point.
One embodiment of the invention provide a kind of bearing calibration of view field, the step that the display frame region controlling interface arranges described multiple control point respectively comprises: display frame region is divided into multiple region with many horizontal lines and many ordinates, and arranges described multiple control point in the point of intersection of described multiple horizontal line and described multiple ordinate.
One embodiment of the invention provide the bearing calibration of another kind of view field, the step of the projection ratio of image frame shown in multiple view field described in dynamic conditioning comprises: the projection ratio interval wherein between two control points on display frame region being adjusted to corresponding region in less then described multiple view field is less, and the projection ratio being adjusted to corresponding region in larger then described multiple view field is larger.
One embodiment of the invention provide a kind of projection display system, comprise multiple projection arrangement, picture capture device, splicing apparatus and calculation element.Multiple projection arrangement is respectively in order to project multiple view field on perspective plane, and wherein view field partly overlaps.Picture capture device is in order to capture these view fields on perspective plane.Calculation element judges the position of these view fields by these view fields that picture capture device captures.Calculation element comprises display screen.This display screen comprises the control interface in display frame region in order to display.Display frame region corresponds to these view fields to scale.Display frame region indicates the border of lap in these view fields, calculation element, according to border, adjusts the image frame of lap between these view fields.
One embodiment of the invention provide another kind of projection display system, and the projection brightness of each described multiple view field on perspective plane is successively decreased from the inner boundary of respective lap toward inside.
One embodiment of the invention provide another kind of projection display system, and between the described multiple view field in described multiple view field, the image frame adjustment of lap is no more than inner boundary.
One embodiment of the invention provide another kind of projection display system, and splicing apparatus also comprises: memory cell, for storing at least one two-dimensional coordinate array; Signal output unit, for output image signal; And image control unit, couple signal output unit and memory cell, anamorphic image can be produced according to input image and at least one two-dimensional coordinate array and the described multiple image of control signal output unit output.
One embodiment of the invention provide a kind of bearing calibration of view field.Multiple view fields of multiple projection arrangement are projected on perspective plane by the method respectively, and these view fields captured on perspective plane are to judge the position of these view fields, and wherein view field partly overlaps.Control the inner boundary indicating lap in these view fields in the display frame region of interface, wherein display frame region corresponds to scale in conjunction with view field.According to inner boundary, adjust the image frame of lap between these view fields.
Based on above-mentioned, calculation element described in the embodiment of the present invention is by controlling the display frame region on interface increases most control points and the view field inner boundary at lap, user is allowed manually to adjust the picture deformation because nonplanar projection screen (e.g., may be arc or wavy) produces by the control point that these control projection ratio; User also to adjust the imaging picture of these view fields in the position of inner boundary by adjusting the lap of view field, thus avoid producing not expected picture bright band.Accordingly, user to control on interface extra function increased with the imaging picture in these view fields of dynamic conditioning by this, and improves projection quality according to this.
The imaging picture of embodiments of the invention in order to utilize multiple projection arrangement to project high-quality on more roomy screen
For above-mentioned feature and advantage of the present invention can be become apparent, multiple embodiment cited below particularly, and coordinate accompanying drawing, be described in detail below.
Accompanying drawing explanation
Fig. 1 is the system schematic according to a kind of projection display system described in the embodiment of the present invention.
Fig. 2 A is the schematic diagram according to a kind of splicing apparatus described in the embodiment of the present invention.
Fig. 2 B is the flow chart of the bearing calibration according to a kind of view field described in the embodiment of the present invention.
Fig. 3 is the flow chart of the bearing calibration according to the another kind of view field described in the embodiment of the present invention.
Fig. 4 A is according to a kind of schematic diagram in conjunction with view field described in the embodiment of the present invention.
Fig. 4 B is the schematic diagram according to a kind of display frame region described in the embodiment of the present invention.
Fig. 5 is the flow chart of the bearing calibration according to another view field described in the embodiment of the present invention.
Fig. 6 A is the lap schematic diagram according to a kind of view field described in the embodiment of the present invention.
Fig. 6 B is the schematic diagram that a kind of view field lap produces bright band.
Fig. 6 C is the schematic diagram according to a kind of display frame region described in the embodiment of the present invention.
Fig. 7 A, 7B, 7C are the schematic diagram of the image frame according to the another kind of view field described in the embodiment of the present invention respectively.
Embodiment
Aforementioned and other technology contents, feature and effect for the present invention, in the following detailed description coordinated with reference to multiple embodiments of accompanying drawing, can clearly present.The direction term mentioned in following examples, such as " on ", D score, "front", "rear", "left", "right" etc., be only the direction with reference to accompanying drawing.Therefore, the direction term of use is used to illustrate, but not is used for limiting the present invention.
In order to maintain the projection quality of the spliced image frame of multiple view field, the embodiment of the present invention provides a kind of projection display system.This projection display system can arrange the control point of view field or indicate the border of each view field lap on possessed control interface.Therefore, user can be allowed to pass through to control projection ratio and the excessive effects of interface dynamic conditioning imaging picture, to improve the projection quality of optical projection system.
Fig. 1 is the system schematic according to a kind of projection display system 100 described in the embodiment of the present invention.Please refer to Fig. 1.In the present embodiment, projection display system 100 comprises projection arrangement 110_1 and 110_2, picture capture device 120, splicing apparatus 130 and calculation element 160.Projection arrangement 110_1 and 110_2 is such as the device that optical projector or digital projector etc. can carry out image projection.In Fig. 1, projection arrangement 110_1 is in order to project the view field 150_1 of image on perspective plane 140, and projection arrangement 110_2 is in order to project the view field 150_2 of image on perspective plane 140.It should be noted that, be described although the present embodiment is the projection display system comprising 2 projection arrangements, those skilled in the art can look its actual demand, and the teaching of reference the present embodiment, and the number class of projection arrangement is pushed into more.
Picture capture device 120 is coupled to calculation element 160.Picture capture device 120 is such as the device of the various capturing images information such as general video camera, camera or network video camera.Picture capture device 120 is in order to capture the imaging picture on perspective plane 140.Imaging picture is made up of the image be projeced into respectively on view field 150_1 and view field 150_2.
Splicing apparatus 130 couples projection arrangement 110_1,110_2 and calculation element 160, for input image being out of shape (warp) or merging (blending).For example, Fig. 2 A is the schematic diagram according to a kind of splicing apparatus 130 described in the embodiment of the present invention.Referring to Fig. 1 and Fig. 2 A, in the present embodiment, splicing apparatus 130 comprises signal output unit 136, image control unit 134 and memory cell 132.Image control unit 134 couples signal output unit 136 and memory cell 132.The image control unit 134 of splicing apparatus 130 couples calculation element 160 (not illustrating), the image source that image control unit 134 receives according to calculation element 160 and the two-dimensional array coordinate that is stored in memory cell 132 are by deformation of image, and by signal output unit 136 difference output image signal IS1 and IS2 to projection arrangement 110_1 and 110_2, to produce image frame at view field 150_1 and 150_2.In the present embodiment, image control unit 134 is processor, and memory cell 132 is flash memory (Flashmemory).There is provided the image source of image (not illustrating) can be computer, DVD player, multimedia storage apparatus, mobile device .. etc.
Calculation element 160 can be desktop computer, notebook computer and panel computer ... Deng, there is control interface (showing on display), this control interface can the image of display frame capture device 120, sets projected boundary by controlling interface.The present invention is because setting projected boundary by controlling interface, need not the image of projection be captured by picture capture device 120 with the projected boundary providing splicing apparatus final or place test lattice point (testchart) and the pattern the capturing testchart projected boundary that provides splicing apparatus final, therefore can save the time of correction.
The bearing calibration of projection display system 100 projection arrangement in the present embodiment comprises two stages and is respectively calibration phase and display stage, and calibration phase and display stage are respectively described below.
Fig. 2 B is the flow chart of the bearing calibration according to a kind of view field described in the embodiment of the present invention.Referring to Fig. 1, each step of the every component description bearing calibration in projection display system 100 of namely arranging in pairs or groups below.
In step S210, view field 150_1 and 150_2 of projection arrangement 110_1 and 110_2 is projected respectively complete black picture on perspective plane 140, and utilize picture capture device 120 to capture complete black picture on perspective plane 140.
In step S220, projection arrangement 110_1 and projection arrangement 110_2 is projected respectively white picture to view field 150_1 and 150_2 on perspective plane 140, picture capture device 120 captures the white picture in view field 150_1 and 150_2 respectively.
In step S230, projection arrangement 110_1 and projection arrangement 110_2 is projected respectively four lattice points to view field 150_1 and 150_2 on perspective plane 140, picture capture device 120 captures four lattice point pictures in view field 150_1 and 150_2 respectively.
In step S240, projection arrangement 110_1 and projection arrangement 110_2 is projected respectively all lattice points to view field 150_1 and 150_2 on perspective plane 140, picture capture device 120 captures the possessive case point picture in view field 150_1 and 150_2 respectively.
In step s 250, the resolution coordinates of the lattice point picture (step S230 to S240) that projects according to projection arrangement 110_1 and 110_2 that picture capture device 120 captures of calculation element 160 and calculation element 160 is to produce the two-dimensional coordinate array of projection arrangement and picture capture device.
In step S260, in the control interface of calculation element 160, setting projected boundary, calculation element 160 produces the two-dimensional coordinate array of picture capture device again according to the projected boundary of setting and the resolution coordinates of calculation element 160.
The resolution coordinates of calculation element 160, the resolution of the calculation element set by user, such as: the resolution of setup algorithm device 160 is 400X600, be coordinate in calculation element 160 display frame upper left side be (0,0) and lower right side's coordinate is (400,600), but not as limit.
Fig. 3 is the flow chart of the bearing calibration according to a kind of view field described in one embodiment of the invention.Referring to Fig. 1 and Fig. 3, the bearing calibration of the view field of the present embodiment is applicable to the projection display system 100 of Fig. 1, each step of the bearing calibration of the every component description view field of the present invention in projection display system 100 of namely arranging in pairs or groups below.
In step S310, view field 150_1 and 150_2 of projection arrangement 110_1 and 110_2 is projected on perspective plane 140 by calculation element 160 respectively, and utilize picture capture device 120 to capture view field 150_1 and 150_2 on perspective plane 140, thus judge the position of view field 150_1 and 150_2, wherein view field 150_1 and 150_2 produces adjacent or partly overlaps.The corresponding step S210 ~ S240 of step S310, that is the image that S210 ~ S240 produces continued to use by the image in step S310, projector no longer projects new image, but not as limit, new image (being different from the image that S210 ~ S240 produces) also can be projected in step S310.
In step s 320, in the control interface of calculation element 160, display frame region arranges multiple control point respectively, wherein display frame region can correspond to view field 150_1 and 150_2 to scale.
Fig. 4 A and Fig. 4 B can be used to the step of assisting key diagram 3.For example, Fig. 4 A is the schematic diagram according to a kind of view field described in the embodiment of the present invention.Fig. 4 B is the schematic diagram according to a kind of control inerface 410 described in the embodiment of the present invention.In Fig. 4 B, display frame region 420 shown on the control interface 410 of calculation element 160 corresponds to view field 150_1 and 150_2 to scale.As shown in Figure 4 B, calculation element 160 is divided into multiple region with many horizontal lines and many ordinates on the display frame region 420 of possessed control interface 410, and arranges multiple control point CP in the point of intersection of horizontal line and ordinate.
For view field 150_1 and 150_2 and display frame region 420, in step S330, the spacing on the display frame region 420 being controlled interface 410 by adjustment between the position of control point CP and two control point CP carrys out the projection ratio of image frame to display on dynamic conditioning view field 150_1 and 150_2.
Specifically, user can control interface 410 on operation, by display frame region 420 the interval wherein between two control point CP adjustment reduce, then in view field 150_1 and 150_2 the projection ratio of corresponding region also correspondence reduce.Otherwise the interval adjustment between two control point CP becomes large, then in view field 150_1 and 150_2, the projection ratio of corresponding region is also large to strain.Therefore, when perspective plane curved or wavy time because picture capture device 120 or projection arrangement 110_1 and 110_2 cause the distortion of image because of putting position, all by adjustment projection ratio, to overcome the uneven problem of imaging picture.
Fig. 5 is the flow chart of the bearing calibration according to a kind of view field described in one embodiment of the invention.Referring to Fig. 1 and Fig. 5, the bearing calibration of the view field of the present embodiment is applicable to the projection display system 100 of Fig. 1, each step of the bearing calibration of the every component description view field of the present invention in projection display system 100 of namely arranging in pairs or groups below.
In step S510, view field 150_1 and 150_2 of projection arrangement 110_1 and 110_2 is projected on perspective plane 140 by calculation element 160 respectively, and utilize picture capture device 120 to capture the picture of view field 150_1 and 150_2 on perspective plane 140, therefore to judge the position of view field 150_1 and 150_2.Wherein view field 150_1 and 150_2 partly overlaps.Step S510 may correspond to step S210 ~ S240, that is the image produced in step S510 can be the image that S210 ~ S240 produces, projector no longer projects new image, but also can be project new image (being different from the image that S210 ~ S240 produces) in step S510.
In step S520, in the control interface of calculation element 160, control to indicate the inner boundary of view field 150_1 and 150_2 at lap in the display frame region of interface at this.Wherein display frame region can correspond to view field 150_1 and 150_2 to scale.
For example, Fig. 6 A is the schematic diagram according to a kind of view field lap described in the embodiment of the present invention.In Fig. 6 A, the view field of projection arrangement 110_1 and 110_2 is respectively 150_1 and 150_2.Inner boundary L1 and L2 overlapping part 610 is respectively arranged with in view field 150_1 and 150_2.The brightness schematic diagram of below correspondence is that brightness is done classification by 0 to 1, and left-hand digit represents the brightness of view field 150_1, the brightness of the digitized representation view field 150_2 on the right, represents the size of each region projection brightness in view field.As shown in the brightness schematic diagram in Fig. 6 A, the projection brightness of view field 150_1 and 150_2 is successively decreased from inner boundary L2 and L1 toward inside, such as, with the brightness of view field 150_1, is successively decreased, successively decrease into 0 by 1 from inner boundary L2 toward inner boundary L1.And, because lap 610 is within inner boundary L1 and L2, the projection brightness (being made up of the summation of view field 150_1 and 150_2 brightness) of lap 610 is identical with the brightness of other non-overlapped view fields, is evenly maintained at fixed value (being such as 1).
On the other hand, in Fig. 6 B, when lap 630 exceedes the scope of view field 150_1 and 150_2 inner boundary L2 and L1 respectively, as shown in brightness schematic diagram corresponding below view field, the projection brightness of view field 150_1 and 150_2 is successively decreased from inner boundary L2 and L1 toward inside, such as with the brightness of view field 150_1, successively decreased from inner boundary L2 toward inner boundary L1, 0 is successively decreased into by 1, but the projection brightness of lap 630 identically with the brightness of non-overlapped view field cannot be maintained at fixed value, and (the brightness summation such as in brightness schematic diagram in lap 630 is by 1, 1.3, 1.2, 1.3, 1 sequentially changes), and cause in view field, produce obvious light belt.That is because view field 150_1 or 150_2 overlapping region should be preset in inner boundary L1 and L2 originally, because user cannot judge that view field 150_1 and 150_2 overlaps the position in region, so overlapping region will exceed inner boundary L1 and L2, make originally decrementing brightness be 0 part should be positioned on the boundary line of inner boundary L1 or L2, but it is 0.3 that the boundary line making way for border L1 or L2 becomes brightness, causes the brightness after superposition too high (1+0.3) thus to form light belt.
Fig. 6 C is the schematic diagram according to a kind of display frame region 640 described in the embodiment of the present invention.With reference to Fig. 1 and Fig. 6 C, display frame region 640 shown on the control interface 410 of calculation element 160, corresponds to view field 150_1 and 150_2 to scale.As shown in Figure 6 C, calculation element 160 indicates inner boundary L1 and L2 of lap in view field 150_1 and 150_2 on the display frame region 640 that it controls interface 410.Get back to shown in Fig. 5, in step S530, calculation element 160, according to inner boundary L1 and L2 that display frame region indicates, adjusts the image frame of lap between view field 150_1 and 150_2.
Specifically, according to the bearing calibration of a kind of view field described in one embodiment of the invention, if when producing obvious light belt in conjunction with view field's internal cause brightness inequality (as shown in Figure 6B), user controls the operation on interface at it, between adjustment view field 150_1 and 150_2, the image frame position of lap is no more than inner boundary L1 and L2 of view field 150_1 and 150_2, with the bright band avoiding the imaging picture of view field to produce luminance difference, and then improve the uniformity of projection device brightness.
In addition, Fig. 7 A, 7B, 7C are the schematic diagram of the image frame 700,710,720 according to a kind of view field described in the embodiment of the present invention respectively, and Fig. 7 A ~ 7C is for illustration of the producing method of lattice point in step S230 ~ S240.In calculation element 160, set the coordinate figure of four lattice points of view field's intermediate rectangular arrangement and launch image frame 700 by projection arrangement, such as: the coordinate figure of four lattice points is such as respectively (4,3), (5,3), (4,4) and (5,4), but not as limit.With reference to Fig. 7 A, for view field 150_1, calculation element 160 can control four lattice points that centre that projection arrangement 110_1 is projeced into the image frame 700 of view field 150_1 arranges rectangular arrangement.The coordinate figure of these four lattice points is respectively (4,3), (5,3), (4,4) and (5,4) as aforementioned.Further, as shown in the image frame 710 of Fig. 7 B, calculation element 160 such as with arranged four lattice points for reference point, the lattice point of view field 150_1 is increased to utilizing the mode equal proportions such as interpolation method and is covered with whole image frame to form grid array.
Specifically, as shown in the image frame 720 of Fig. 7 C, calculation element 160 sequentially can calculate the coordinate figure (such as (3 of the lattice point in each grid array, 3), (6,3), (3,4) and (6,4) etc., by that analogy).
The aligning step that the calibration phase that step S210 ~ S260 is system carries out, step S310 ~ S330 or step S510 ~ S520 can implement in S260 step.
When optical projection system carries out the display stage, shown in figure 1 and Fig. 2, calculation element 160 provides input image to splicing apparatus 130, image control unit 134 in splicing apparatus 130 is according to the two-dimensional coordinate array and the picture capture device two-dimensional coordinate array that input image and the projection arrangement be stored in memory cell 132 and picture capture device, to make input deformation of image and via signal output unit 136, the image after distortion to be supplied to projection arrangement 110_1 and 110_2 respectively, perspective plane 140 is projected to produce complete image picture by projection arrangement 110_1 and 110_2.In addition, deformation of image described herein is that input image the two-dimensional coordinate array of corresponding projection arrangement and picture capture device and picture capture device two-dimensional coordinate can arrange to form the image after being out of shape, and image quantity after distortion can corresponding projection arrangement quantity as: optical projection system has two projection arrangements, then input to have after deformation of image two distortion afterwards images be supplied to this two projection arrangements respectively.Suppose that projector is left-right situs, then distortion after image can limit, corresponding left and right projection arrangement and produce left side anamorphic image and the right anamorphic image, limit, left and right projection arrangement is projected to perspective plane respectively to form complete image, and this complete image is recessed image or convex image, wavy image, superimposed image .. etc. after can be splicing image, splicing.
In sum, on control interface described in the embodiment of the present invention in conjunction with view field increasing most control points and the view field inner boundary at lap, thus allow user that these can be utilized to control the control point of projection ratio, manually to adjust the picture deformation because nonplanar projection screen (e.g., may for arc or wavy) produces.In addition, user also adjusts in conjunction with the imaging picture in view field at the inner boundary of lap by view field, avoids producing not expected picture bright band.Accordingly, user to control on interface the extra function increased with dynamic conditioning in conjunction with the imaging picture in view field by this, and improves projection quality according to this.Separately, the image be positioned on screen is captured, to save the time of correction by directly setting final projected boundary to save picture capture device.
The above, be only the preferred embodiments of the present invention, when not limiting scope of the invention process with this, the simple equivalence namely generally done according to the claims in the present invention and invention description content changes and modifies, and all still remains within the scope of the patent.In addition, any embodiment of the present invention or claim must not reach whole object disclosed by the present invention or advantage or feature.In addition, summary part and title are only used to the use of auxiliary patent document search, are not used for limiting interest field of the present invention.
Claims (14)
1. a projection display system, comprising: multiple projection arrangement, picture capture device, calculation element and splicing apparatus,
Described multiple projection arrangement, is suitable for multiple view field to be projeced on perspective plane respectively, and wherein said multiple view field is adjacent or partly overlap;
Described picture capture device, in order to capture the described multiple view field on described perspective plane;
Described calculation element, couple described picture capture device and comprise the control interface in display frame region, described calculation element judges the position of described multiple view field by described multiple view field that described picture capture device captures, and described display frame region corresponds to described multiple view field to scale; And
Described splicing apparatus, couples described multiple projection arrangement and described calculation element,
Wherein said display frame region arranges multiple control point respectively, is carried out the projection ratio of image frame shown in multiple view field described in dynamic conditioning by the spacing adjusted between the position at described multiple control point and described multiple control point.
2. projection display system as claimed in claim 1, wherein said display frame region has multiple region, described multiple region divides with many horizontal lines and many ordinates, and arranges described multiple control point in the point of intersection of described multiple horizontal line and described multiple ordinate.
3. projection display system as claimed in claim 1, wherein said splicing apparatus also comprises:
Memory cell, for storing at least one two-dimensional coordinate array;
Signal output unit, for output image signal; And
Image control unit, for coupling described signal output unit and described memory cell, produce multiple anamorphic image according to input image and described at least one two-dimensional coordinate array and control described signal output unit, export described multiple image and be delivered to described multiple projection arrangement.
4. projection display system as claimed in claim 1, the projection ratio that the interval wherein between two control points on described display frame region is adjusted to corresponding region in less then described multiple view field by wherein said calculation element is less, and the projection ratio being adjusted to corresponding region in larger then described multiple view field is larger.
5. a bearing calibration for view field, comprising:
Multiple view fields of multiple projection arrangement be projected on perspective plane respectively, and capture the described multiple view field on described perspective plane, to judge the position of described multiple view field, wherein said multiple view field is adjacent or partly overlap;
In control interface, the display frame region of described control interface arranges multiple control point respectively, and wherein said display frame region corresponds to described multiple view field to scale; And
The projection ratio of image frame shown in multiple view field described in dynamic conditioning is carried out by the spacing adjusted between the position at described multiple control point and described multiple control point.
6. the bearing calibration of view field as claimed in claim 5, the step wherein arranging described multiple control point on the described display frame region of described control interface respectively comprises:
Described display frame region is divided into multiple region with many horizontal lines and many ordinates, and described multiple control point is set in the point of intersection of described multiple horizontal line and described multiple ordinate.
7. the bearing calibration of view field as claimed in claim 5, the step of the projection ratio of wherein shown in multiple view field described in dynamic conditioning image frame comprises:
The projection ratio interval wherein between two control points on described display frame region being adjusted to corresponding region in less then described multiple view field is less, and the projection ratio being adjusted to corresponding region in larger then described multiple view field is larger.
8. a projection display system, comprising: multiple projection arrangement, picture capture device, calculation element and splicing apparatus,
Described multiple projection arrangement, respectively in order to be projeced on perspective plane by multiple view field, wherein said multiple view field partly overlaps;
Described picture capture device, in order to capture the described multiple view field on described perspective plane;
Described calculation element, couple described picture capture device and comprise the control interface in display frame region, described calculation element judges the position of described multiple view field by described multiple view field that described picture capture device captures, and wherein said display frame region corresponds to described multiple view field to scale; And
Described splicing apparatus, couples described multiple projection arrangement and described calculation element,
Wherein said display frame region indicates the inner boundary of lap in described multiple view field, described calculation element, according to described inner boundary, adjusts the image frame of lap between described multiple view field.
9. projection display system as claimed in claim 8, the projection brightness of each described multiple view field on wherein said perspective plane is successively decreased from the described inner boundary of respective lap toward inside.
10. projection display system as claimed in claim 8, between the described multiple view field in wherein said multiple view field, the image frame adjustment of lap is no more than described inner boundary.
11. optical projection systems as claimed in claim 8, wherein said splicing apparatus also comprises:
Memory cell, for storing at least one two-dimensional coordinate array;
Signal output unit, for output image signal; And
Image control unit, couples described signal output unit and described memory cell, can produce anamorphic image according to input image and described at least one two-dimensional coordinate array and control described signal output unit to export described multiple image.
The bearing calibration of 12. 1 kinds of view fields, comprising:
Multiple view fields of multiple projection arrangement be projected on perspective plane respectively, and the described multiple view field captured on described perspective plane is to judge the position of described multiple view field, wherein said multiple view field partly overlaps;
In control interface, in the display frame region of described control interface, indicate the inner boundary of lap in described multiple view field, wherein said display frame region corresponds to described multiple view field to scale; And
According to described inner boundary, adjust the image frame of lap between described multiple view field.
The bearing calibration of 13. view fields as claimed in claim 12, the projection brightness of each described multiple view field on wherein said perspective plane is successively decreased from the described inner boundary of respective lap toward inside.
The bearing calibration of 14. view fields as claimed in claim 12, wherein according to described inner boundary, the step adjusting the image frame of lap between described multiple view field comprises:
The image frame adjusting lap between described multiple view field is no more than described inner boundary.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410427021.1A CN105376540A (en) | 2014-08-27 | 2014-08-27 | Projection display system and correction method of projection area |
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| CN106507076A (en) * | 2016-11-25 | 2017-03-15 | 重庆杰夫与友文化创意有限公司 | A kind of projecting method, apparatus and system |
| CN106773500A (en) * | 2017-04-07 | 2017-05-31 | 成都市极米科技有限公司 | Many projection screen joining methods and device |
| CN106773478A (en) * | 2017-04-07 | 2017-05-31 | 成都市极米科技有限公司 | Many projection screen methods of adjustment and device |
| CN107301005A (en) * | 2016-04-14 | 2017-10-27 | 中强光电股份有限公司 | Determine the method and the touch control projection system using methods described of position of touch |
| CN108924521A (en) * | 2018-05-31 | 2018-11-30 | 晨星半导体股份有限公司 | The trapezoidal distortion correction method and equipment of optical projection system |
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| US10397530B2 (en) * | 2016-04-14 | 2019-08-27 | Coretronic Corporation | Method of determining a touch position and touch projection system using the method |
| CN107301005A (en) * | 2016-04-14 | 2017-10-27 | 中强光电股份有限公司 | Determine the method and the touch control projection system using methods described of position of touch |
| CN107301005B (en) * | 2016-04-14 | 2020-04-07 | 中强光电股份有限公司 | Method for determining touch position and touch projection system using same |
| CN106507076A (en) * | 2016-11-25 | 2017-03-15 | 重庆杰夫与友文化创意有限公司 | A kind of projecting method, apparatus and system |
| CN106773500A (en) * | 2017-04-07 | 2017-05-31 | 成都市极米科技有限公司 | Many projection screen joining methods and device |
| CN106773478A (en) * | 2017-04-07 | 2017-05-31 | 成都市极米科技有限公司 | Many projection screen methods of adjustment and device |
| CN106773500B (en) * | 2017-04-07 | 2018-08-24 | 成都市极米科技有限公司 | More projection screen joining methods and device |
| CN109587459B (en) * | 2017-09-29 | 2021-07-06 | 中强光电股份有限公司 | Projection system and automatic setting method thereof |
| TWI651968B (en) * | 2017-09-29 | 2019-02-21 | 中強光電股份有限公司 | Projection system and automatic setting method thereof |
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| CN109587459A (en) * | 2017-09-29 | 2019-04-05 | 中强光电股份有限公司 | Optical projection system and its automatic setting method |
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| CN108924521A (en) * | 2018-05-31 | 2018-11-30 | 晨星半导体股份有限公司 | The trapezoidal distortion correction method and equipment of optical projection system |
| US10594994B2 (en) | 2018-07-30 | 2020-03-17 | Coretronic Corporation | Projection system and projection method |
| CN110784693A (en) * | 2018-07-31 | 2020-02-11 | 中强光电股份有限公司 | Projector correction method and projection system using same |
| US11503259B2 (en) | 2018-07-31 | 2022-11-15 | Coretronic Corporation | Projector calibration method and projection system using the same |
| CN109474811A (en) * | 2018-10-17 | 2019-03-15 | 成都市锐极科技有限公司 | A kind of dome ball curtain projects automatic regulating system and method more |
| US11496717B2 (en) | 2018-12-28 | 2022-11-08 | Coretronic Corporation | Projection system and projection method for performing projection positioning function |
| US10764546B2 (en) | 2019-01-30 | 2020-09-01 | Coretronic Corporation | Projection device and method for generating adjustment gridlines |
| US11146768B2 (en) | 2019-02-28 | 2021-10-12 | Coretronic Corporation | Projection system and projection method |
| CN111816103A (en) * | 2019-04-10 | 2020-10-23 | 中强光电股份有限公司 | Projection device and image adjusting method |
| WO2020220831A1 (en) * | 2019-04-30 | 2020-11-05 | 成都极米科技股份有限公司 | Method and apparatus for realizing superposition of projected pictures, and projection system |
| US11832029B2 (en) | 2019-10-25 | 2023-11-28 | Coretronic Corporation | Projection system and projection image adjustment method thereof |
| CN113163181A (en) * | 2020-01-23 | 2021-07-23 | 明基智能科技（上海）有限公司 | Projection device and projection display system using same |
| CN111372068A (en) * | 2020-05-26 | 2020-07-03 | 深圳市康帕斯科技发展有限公司 | Projection fusion geometric adjustment method and system based on guide |
| CN114449235A (en) * | 2020-10-30 | 2022-05-06 | 中强光电股份有限公司 | Method and device for homogenizing pictures of multiple projectors |
| CN114449235B (en) * | 2020-10-30 | 2024-01-12 | 中强光电股份有限公司 | Method and device for homogenizing pictures of multiple projectors |
| CN114630086A (en) * | 2020-12-11 | 2022-06-14 | 中强光电股份有限公司 | Projection system and image capturing quantity selection method for image splicing |
| CN112804505A (en) * | 2020-12-31 | 2021-05-14 | 上海丹诺西诚智能科技有限公司 | Projection pattern splicing method and system |
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