CN104020925A - Projection method and device - Google Patents
Projection method and device Download PDFInfo
- Publication number
- CN104020925A CN104020925A CN201410239253.4A CN201410239253A CN104020925A CN 104020925 A CN104020925 A CN 104020925A CN 201410239253 A CN201410239253 A CN 201410239253A CN 104020925 A CN104020925 A CN 104020925A
- Authority
- CN
- China
- Prior art keywords
- reference mark
- newly
- user
- control curve
- increased
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention discloses a projection method and device. According to the method, a man-machine interaction interface is provided and a preset control point allowing a user to move generates a projection image according to a control point formed after the user moves; an addition instruction for increasing a control point of a user is responded, and a new control point is increased in the projection image; according to the increased control point of user moving and/or the original control point of user moving, a new projection image is generated. Compared with the prior art, when the user is not satisfied with the generated projection image or local adjustment is further needed, the user can increase the new control point, and local positions of the original projection image can be further adjusted according to the increased control point. Accordingly, the projection method is more flexible, is applied to projection screens of irregular shapes, can be used for adjusting the local positions of the projection image, and does not influence projection images of other parts.
Description
Technical field
The present invention relates to graph and image processing field, relate in particular to projecting method and device.
Background technology
Current projector provides keystone conventionally, keystone is incident upon and on projection screen (as projection metope, curtain etc.), is trapezoidal projected image and processes projector exactly, by being incident upon projected image on projection screen, proofreaies and correct as standard shape (as rectangle etc.).Keystone is only suitable in projection screen comparatively smooth and that shape is comparatively regular.Yet, in real use procedure, conventionally can run into some special projection screens, such as projection screen of fan-shaped, spherical, irregular arc etc.When running into these special projection screens, keystone is the correct image to projector's projection flexibly, also cannot adjust freely the part of image.
Foregoing only, for auxiliary understanding technical scheme of the present invention, does not represent and admits that foregoing is prior art.
Summary of the invention
Fundamental purpose of the present invention is to provide projecting method and device, is intended to make user to carry out local flexible adjustment to adapt to irregular projection screen to projected image.
For achieving the above object, the projecting method that the embodiment of the present invention provides, comprises the following steps:
Human-computer interaction interface is provided, for user, moves default reference mark, the described reference mark after moving according to user, generates projected image;
Newly-increased reference mark is added in the interpolation instruction at the newly-increased reference mark of response user in described projected image;
Original reference mark that the described newly-increased reference mark of moving according to user and/or user move, generates new projected image.
Preferably, described in human-computer interaction interface is provided, move default reference mark for user, the described reference mark after moving according to user, before generating the step of projected image, also comprises:
Structure controls by many polygonal projection frame that curve forms; Described control curve is Bezier;
According to all anchor points on described control curve, and utilize bezier curve equation, obtain reference mark corresponding to described control curve.
Preferably, described described reference mark after moving according to user, the step that generates projected image comprises:
Obtain the position at the described reference mark after moving;
Position according to the described reference mark after movement, utilizes bezier curve equation, again obtains all anchor points on control curve corresponding to reference mark after described movement, generates new projection frame;
According to described new projection frame and predeterminable range ratio, regenerate the picture point in described new projection frame, generate described projected image.
Preferably, the interpolation instruction at the newly-increased reference mark of described response user, the step of adding newly-increased reference mark in described projected image comprises:
Newly-increased control curve is added in the interpolation instruction at the newly-increased reference mark of response user in described projected image; Described newly-increased control curve is Bezier, and described newly-increased control curve and original control curve are divided into a plurality of subimages by described projected image;
According to described newly-increased control curve and described original control curve, utilize bezier curve equation, obtain described newly-increased reference mark.
Preferably, original reference mark that described described newly-increased reference mark of moving according to user and/or user move, the step that generates new projected image comprises:
Original reference mark after described newly-increased reference mark after moving according to user and/or user move, utilize bezier curve equation, again obtain described newly-increased reference mark after mobile and/or mobile after control curve corresponding to described original reference mark on all anchor points, generate new control curve;
According to described new control curve and predeterminable range ratio, again obtain the picture point in the described subimage that described new control curve is corresponding, generate described new projected image.
The projection arrangement that the embodiment of the present invention further provides, comprising:
The first generation module, for human-computer interaction interface is provided, moves default reference mark for user, and the described reference mark after moving according to user, generates projected image;
Add module, for responding the interpolation instruction at the newly-increased reference mark of user, in described projected image, add newly-increased reference mark;
The second generation module, original reference mark of moving for the described newly-increased reference mark of moving according to user and/or user, generates new projected image.
Preferably, described device also comprises:
Projection frame module, controls for building by many polygonal projection frame that curve forms; Described control curve is Bezier;
Reference mark module, for according to all anchor points on described control curve, and utilizes bezier curve equation, obtains reference mark corresponding to described control curve;
Preferably, described the first generation module also comprises:
Unit, reference mark, for obtaining the position at the reference mark after described movement;
The first generation unit, for according to the position at the reference mark after described movement, utilizes bezier curve equation, again obtains all anchor points on control curve corresponding to reference mark after described movement, generates new projection frame;
The second generation unit, for according to described new projection frame and predeterminable range ratio, regenerates the picture point in described new projection frame, generates described projected image.
Preferably, described interpolation module comprises:
Adding device for responding the interpolation instruction at the newly-increased reference mark of user, adds newly-increased control curve in described projected image; Described newly-increased control curve is Bezier, and described newly-increased control curve and original control curve are divided into a plurality of subimages by described projected image;
Acquiring unit, for according to described newly-increased control curve and described original control curve, utilizes bezier curve equation, obtains described newly-increased reference mark.
Preferably, described the second generation module comprises:
The 3rd generation unit, original reference mark after moving for the described newly-increased reference mark after moving according to user and/or user, utilize bezier curve equation, again obtain described newly-increased reference mark after mobile and/or mobile after control curve corresponding to described original reference mark on all anchor points, generate new control curve;
The 4th generation unit, for according to described new control curve and predeterminable range ratio, obtains the picture point in the described subimage that described new control curve is corresponding again, generates described new projected image.
The embodiment of the present invention provides human-computer interaction interface, for user, moves default reference mark, and the described reference mark after moving according to user generates projected image; Newly-increased reference mark is added in the interpolation instruction at the newly-increased reference mark of response user in described projected image; Original reference mark that the described newly-increased reference mark of moving according to user and/or user move, generates new projected image.Compared to prior art, the embodiment of the present invention is when user is unsatisfied with or need to further adjusts the projected image generating, can supply the newly-increased reference mark of user add, and utilize the local location of the newly-increased original projected image of dominating pair of vertices further to adjust.Therefore, the projecting method of the embodiment of the present invention is more flexible, thereby can adapt to irregular projection screen.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of projecting method the first embodiment of the present invention;
Fig. 2 is the schematic flow sheet of projecting method the second embodiment of the present invention;
Fig. 3 is the schematic diagram of polygon projection frame;
Fig. 4 is the schematic diagram of new projection frame;
Fig. 5 is the schematic flow sheet of projecting method of the present invention the 3rd embodiment;
Fig. 6 is the schematic diagram at newly-increased control curve and newly-increased reference mark;
Fig. 7 is the high-level schematic functional block diagram of projection arrangement the first embodiment of the present invention;
Fig. 8 is the high-level schematic functional block diagram of projection arrangement the second embodiment of the present invention;
Fig. 9 is the functional unit schematic diagram of the first generation module in Fig. 8 projection arrangement;
Figure 10 is the high-level schematic functional block diagram of projection arrangement of the present invention the 3rd embodiment;
Figure 11 is the functional unit schematic diagram of the second generation module in Figure 10 projection arrangement.
The realization of the object of the invention, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
It will be appreciated by those skilled in the art that, subject of implementation in the embodiment of projecting method of the present invention can be terminal, terminals such as projector equipment, computing machine, panel computer, mobile phone, also can be other any devices of realizing projecting method of the present invention, in the embodiment of projecting method of the present invention, preferred terminal be as subject of implementation; Projection arrangement in the embodiment of projection arrangement of the present invention can be to be installed in the terminals such as projector equipment, computing machine, panel computer, mobile phone, also can be independent of above-mentioned terminal, only communicate and be connected with above-mentioned terminal, or other any applicable installation and use-patterns.
The invention provides a kind of projecting method.
With reference to Fig. 1, Fig. 1 is the schematic flow sheet of projecting method the first embodiment of the present invention.
In projecting method the first embodiment of the present invention, the method comprises the following steps:
Step S10, provides human-computer interaction interface, for user, moves default reference mark, and the described reference mark after moving according to user generates projected image;
Step S20, newly-increased reference mark is added in the interpolation instruction at the newly-increased reference mark of response user in described projected image;
Step S30, original reference mark that the described newly-increased reference mark of moving according to user and/or user move, generates new projected image.
Projection screen in the present embodiment and following embodiment comprises: projection wall, projection screen etc., the present invention is not construed as limiting projection screen.
Terminal provides human-computer interaction interface, for user, moves default reference mark, is provided with two-dimensional coordinate in human-computer interaction interface.User is with reference to projection screen, according to the shape of projection screen, moves reference mark.Reference mark is the point that confession under directions user moves and controls.The position of default control point on the image that terminal can need to project at original image, for example, equidistant setup control point; Or terminal can arrange according to the instruction of user's side the position at reference mark; The curve of matching can also be set, according to the curve acquisition reference mark of matching, for example, Bezier or quafric curve or the cubic curve etc. of matching be set on original image, according to the curvilinear equation of this matched curve, obtain reference mark.
User moves behind reference mark, and terminal, according to mobile reference mark, generates projected image.For example, obtain the reference mark coordinate position after moving, according to bezier curve equation, obtain new curve, then according to new curve, regenerate near the point of new curve, generate projected image.
Because default reference mark is that terminal or user's side are default, once therefore set behind reference mark, the number at reference mark is fixed, yet by moving fixedly reference mark of these numbers, the projected image generating may or cannot adapt to current projection screen completely, also needs part to adjust or finely tune.
When terminal directly projects the projected image of generation, or terminal is while being sent to the projected image of generation projector equipment and projecting, and user finds that current projected image does not still meet its demand, and now, user can send and add instruction to terminal.Terminal receives the interpolation instruction at the newly-increased reference mark of user and responds this instruction, local location at projected image adds newly-increased reference mark, the number at reference mark and position can be set by the user, also can be set by terminal, for example, user can add the reference mark of some optional positions and quantity, also can add one or more matched curve, and terminal is obtained quantity and the position at reference mark according to this matched curve.
User is after having added newly-increased reference mark, and mobile newly-increased reference mark or the part of original dominating pair of vertices projected image are adjusted.Original reference mark that the newly-increased reference mark that terminal moves according to user and user move, generates new projected image, and the method that new projected image generates is comparatively similar to the generation method of projected image in step S01, does not repeat in this embodiment.
The present embodiment provides human-computer interaction interface, for user, moves default reference mark, and the described reference mark after moving according to user generates projected image; Newly-increased reference mark is added in the interpolation instruction at the newly-increased reference mark of response user in described projected image; Original reference mark that the described newly-increased reference mark of moving according to user and/or user move, generates new projected image.Compared to prior art, the present embodiment is when user is unsatisfied with or need to further adjusts the projected image generating, can supply the newly-increased reference mark of user add, and utilize the local location of the newly-increased original projected image of dominating pair of vertices further to adjust.Therefore, the projecting method of the present embodiment is more flexible, thereby can adapt to irregular projection screen or local irregularities's projection screen.
With reference to Fig. 2, Fig. 2 is the schematic flow sheet of projecting method the second embodiment of the present invention.
In projecting method the second embodiment of the present invention, the difference of the present embodiment and the first embodiment is, the present embodiment is on the basis of the first embodiment, the described human-computer interaction interface that provides, for user, move default reference mark, described reference mark after moving according to user, before generating the step of projected image, also comprises:
Step S40, builds by many and controls the polygon projection frame that curve forms; Described control curve is Bezier;
Step S50, according to all anchor points on described control curve, and utilizes bezier curve equation, obtains reference mark corresponding to described control curve.
With reference to Fig. 3, Fig. 3 is the schematic diagram of polygon projection frame.
Wherein, 61,62,63,64 are respectively four controls curve, controls the projection frame that curve forms rectangle for these four, and a is for controlling the reference mark on curve.It should be noted that Fig. 3 is only an example, is not intended to limit the present invention.
Terminal builds controls the polygon projection frame that curves form by many, and these control curves are Bezier, and original image is in projection frame.Anchor point refers to the point of composition control line, and the precision of the predeterminable control curve of terminal forms the density of the anchor point of this curve.Anchor point on Bezier can be sought out by reference mark and bezier curve equation, and the anchor point on the initial control curve generating is known in the present embodiment, terminal, according to controlling all anchor points on curve, is utilized bezier curve equation, obtains the reference mark that this control curve is corresponding.Bezier can obtain two reference mark that minute are located at Bezier two ends, and secondary Bezier can obtain three reference mark, and three times Bezier can obtain four reference mark, the like.Reference mark is more, can do adjustment more accurately to controlling curve.
The present embodiment builds the polygon projection frame being comprised of many control curves, and described control curve is Bezier; According to all anchor points on described control curve, and utilize bezier curve equation, obtain reference mark corresponding to described control curve.Compared to other curves as controlling curve, the present embodiment utilizes Bezier as controlling curve, there is distortion freely, simply, the feature of line smoothing, and utilize the dominating pair of vertices original image that Bezier is corresponding to adjust, can be more accurately, more flexibly original image is adjusted.
In one embodiment of the present invention, described described reference mark after moving according to user, the step that generates projected image comprises:
Obtain the position at the described reference mark after moving;
Position according to the described reference mark after movement, utilizes bezier curve equation, again obtains all anchor points on control curve corresponding to reference mark after described movement, generates new projection frame;
According to described new projection frame and predeterminable range ratio, regenerate the picture point in described new projection frame, generate described projected image.
With reference to Fig. 4, Fig. 4 is the schematic diagram of new projection frame.
Wherein, a is the reference mark before mobile, and b is the reference mark after mobile, and 61,62,63,64 are respectively four controls curve, and 61a is the new control curve generating according to b, and 61a, 62,63,64 forms new projection frame.It should be noted that Fig. 4 is only an example, is not intended to limit the present invention.
User moves reference mark, and terminal is obtained the position at the reference mark after moving, the coordinate figure at the reference mark after moving.Because variation has occurred for the position at reference mark, therefore, control curve corresponding to this reference mark of moving also can change thereupon.Terminal is according to the coordinate figure at the reference mark after movement, and utilizes bezier curve equation, again obtains all anchor points on control curve corresponding to reference mark after mobile, generates control curve corresponding to reference mark after mobile, thereby generates new projection frame.
Predeterminable range ratio can be to be arranged by terminal, can be also that terminal is according to the instruction setting of user's side.
Picture point refers to the point that forms original image.
Projection frame changes and generates after new projection frame, and the position of the picture point in projection frame also changes, and terminal, according to new projection frame and predeterminable range ratio, regenerates the picture point in described new projection frame, generates projected image.For example, ratio between the distance value of the picture point in projection frame and each anchor point in projection frame (controlling the anchor point on curve) is predeterminable range ratio, picture point in mobile this region, ratio between the distance value of the anchor point in the picture point in the new projection frame generating and new projection frame is still predeterminable range ratio, regenerate the picture point in all new projection frame, generate projected image.Predeterminable range ratio can also be picture point in projection frame and the ratio between the distance value of each anchor point on a certain control curve.
In one embodiment of the present invention, the projection frame that described polygonal projection frame is rectangle.
The image of general projector projection is rectangle, and therefore the projection frame of rectangle is set, and by adjusting four reference mark of controlling on curve, thereby can simply to original image, adjust, and efficiency is higher.
In one embodiment of the present invention, described Bezier is three Beziers.
Bezier is three Beziers, so controls four reference mark of corresponding generation on curve for every.Three Beziers are more compared to the reference mark of Bezier, secondary Bezier, can adjust more accurately original image for user, and three Beziers are compared to four times or other Bezier repeatedly, calculate simpler, therefore after reference mark is moved, can be very fast calculate control curve corresponding to reference mark after mobile, seek out each anchor point of controlling on curve.
With reference to Fig. 5, Fig. 5 is the schematic flow sheet of projecting method of the present invention the 3rd embodiment.
In the 3rd embodiment of projecting method of the present invention, the difference of the present embodiment and the first embodiment and the second embodiment is, the present embodiment is on the basis of the first embodiment and the second embodiment, the interpolation instruction at the newly-increased reference mark of described response user, the step of adding newly-increased reference mark in described projected image comprises:
Step S21, newly-increased control curve is added in the interpolation instruction at the newly-increased reference mark of response user in described projected image; Described newly-increased control curve and original control curve are divided into a plurality of subimages by described projection frame;
Step S22, according to described newly-increased control curve and described original control curve, utilizes bezier curve equation, obtains described newly-increased reference mark.
With reference to Fig. 6, Fig. 6 is the schematic diagram at newly-increased control curve and newly-increased reference mark.
Wherein, 65 is newly-increased control curve, and c is newly-increased reference mark.It should be noted that Fig. 6 is only an example, is not intended to limit the present invention.
The interpolation instruction at the newly-increased reference mark of interpolation instruction response user at the newly-increased reference mark of terminal user, in projected image, add newly-increased control curve, after having added so newly-increased control curve, the control curve in projected image can be divided into newly-increased control curve and original control curve.Newly-increased control curve is Bezier, newly-increased control curve and original control curve are divided into a plurality of subimages by projected image, it is the control curve increasing newly that subimage has a frame at least, if newly-increased control curve has many, one of them subimage may be the region all being surrounded by the control curve increasing newly, is likely also the region being surrounded by the control curve increasing newly and original control curve.Newly-increased control curve can be added on arbitrarily in projected image, and the two ends that the present embodiment is preferably controlled curve are connected with other control curves, former projection frame are divided into the subimage of several sealings, are conducive to reduce calculated amount, are more convenient for obtaining reference mark.Terminal, according to newly-increased control curve and original control curve, is utilized bezier curve equation, obtains newly-increased reference mark.For example, newly-increased control curve one end is located on an original control curve, this original control curve is divided into two sections and controls curve, the other end is located on another original control curve, also this original control curve is divided into two sections and controls curve, utilize bezier curve equation to obtain the reference mark of newly-increased control curve, obtain respectively two sections of reference mark of controlling curve on two original control curves, obtain newly-increased reference mark, now, the reference mark in projected image comprises newly-increased reference mark and original reference mark.
In one embodiment of the present invention, original reference mark that described described newly-increased reference mark of moving according to user and/or user move, the step that generates new projected image comprises:
Original reference mark after described newly-increased reference mark after moving according to user and/or user move, utilize bezier curve equation, again obtain described newly-increased reference mark after mobile and/or mobile after control curve corresponding to described original reference mark on all anchor points, generate new control curve;
According to described new control curve and described predeterminable range ratio, again obtain the picture point in the described subimage that described new control curve is corresponding, generate described new projected image.
User moves newly-increased reference mark and/or original reference mark, original reference mark after newly-increased reference mark after terminal moves according to user and/or user move, utilize bezier curve equation, again obtain newly-increased reference mark after mobile and/or mobile after control curve corresponding to original reference mark on all anchor points, generate new control curve.This step is similar with the method in the second embodiment, and those skilled in the art can realize according to the method in the second embodiment this step, and therefore, therefore not to repeat here.
Terminal generates after new control curve, be subject to the impact of new control curve, the position of the picture point in subimage also changes thereupon, according to new control curve and predeterminable range ratio, again obtaining new control Curves affects the picture point in subimage, generates described new projected image.For example, picture point in the subimage of new control Curves impact and the ratio surrounding between the distance value of each anchor point on all control curves of this subimage are predeterminable range ratio, picture point in mobile this subimage, picture point in this subimage generating with and the ratio that surrounds between the distance value of each anchor point on all control curves of this subimage be still predeterminable range ratio, regenerate the picture point in all these subimages, generate new projected image.Predeterminable range ratio can also be picture point in subimage and the ratio between the distance value of each anchor point on a certain control curve.Predeterminable range ratio is herein identical with the predeterminable range ratio of mentioning in the second embodiment.
The present invention further provides a kind of projection arrangement.
With reference to Fig. 7, Fig. 7 is the high-level schematic functional block diagram of projection arrangement the first embodiment of the present invention.
In projection arrangement the first embodiment of the present invention, this device comprises:
The first generation module 10, for human-computer interaction interface is provided, moves default reference mark for user, and the described reference mark after moving according to user, generates projected image;
Add module 20, for responding the interpolation instruction at the newly-increased reference mark of user, in described projected image, add newly-increased reference mark;
The second generation module 30, original reference mark of moving for the described newly-increased reference mark of moving according to user and/or user, generates new projected image.
Projection screen in the present embodiment and following embodiment comprises: projection wall, projection screen etc., the present invention is not construed as limiting projection screen.
The first generation module 10 provides human-computer interaction interface, for user, moves default reference mark, is provided with two-dimensional coordinate in human-computer interaction interface.User is with reference to projection screen, according to the shape of projection screen, moves reference mark.Reference mark is the point that confession under directions user moves and controls.The position of default control point on the image that the first generation module 10 can need to project at original image, for example, equidistant setup control point; Or the first generation module 10 can arrange according to the instruction of user's side the position at reference mark; The curve of matching can also be set according to the curve acquisition reference mark of matching, for example, Bezier or quafric curve or the cubic curve etc. of matching be set on original image, according to the curvilinear equation of this matched curve, obtain reference mark.
User moves behind reference mark, and the first generation module 10, according to mobile reference mark, generates projected image.For example, obtain the reference mark coordinate position after moving, use bezier curve equation, obtain new curve, then according to new curve, regenerate near the point of new curve, generate projected image.
Because default reference mark is that the first generation module 10 or user's side are default, once therefore set behind reference mark, the number at reference mark is fixed, yet by moving fixedly reference mark of these numbers, the projected image generating may or cannot adapt to current projection screen completely, also needs part to adjust or finely tune.
During the device projected image that directly projection generates, or device is while being sent to the projected image of generation projector equipment and projecting, and user finds that current projected image does not still meet its demand, and now, user can send interpolation instruction to device.Adding module 20 receives the interpolation instruction at the newly-increased reference mark of user and responds this instruction, local location at projected image adds newly-increased reference mark, the number at reference mark and position can be set by the user, also can set by adding module 20, for example, user can add the reference mark of some optional positions and quantity, also can add one or more matched curve, and terminal is obtained quantity and the position at reference mark according to this matched curve.
User is after having added newly-increased reference mark, and mobile newly-increased reference mark and/or the part of original dominating pair of vertices projected image are adjusted.Original reference mark that the newly-increased reference mark that the second generation module 30 moves according to user and/or user move, generate new projected image, the method that new projected image generates is comparatively similar to the method that the first generation module 10 generates projected image, does not repeat in this embodiment.
The present embodiment the first generation module 10 provides human-computer interaction interface, for user, moves default reference mark, and the described reference mark after moving according to user generates projected image; Add the interpolation instruction at the newly-increased reference mark of interpolation instruction response user at the module 20 newly-increased reference mark of response user, in described projected image, add newly-increased reference mark; Original reference mark that the described newly-increased reference mark that the second generation module 30 moves according to user and/or user move, generates new projected image.Compared to prior art, the present embodiment is when user is unsatisfied with or need to further adjusts the projected image generating, can supply the newly-increased reference mark of user add, and utilize the local location of the newly-increased original projected image of dominating pair of vertices further to adjust.Therefore, the projecting method of the present embodiment is more flexible, thereby can adapt to irregular projection screen or local irregularities's projection screen.
With reference to Fig. 8, Fig. 8 is the high-level schematic functional block diagram of projection arrangement the second embodiment of the present invention.
In projection arrangement the second embodiment of the present invention, the difference of the present embodiment and the first embodiment is, the present embodiment is on the basis of the first embodiment, and described device comprises:
Projection frame module 40, controls for building by many polygonal projection frame that curve forms; Described control curve is Bezier;
Reference mark module 50, for according to all anchor points on described control curve, and utilizes bezier curve equation, obtains reference mark corresponding to described control curve.
Projection frame module 40 builds controls the polygon projection frame that curves form by many, and these control curves are Bezier, and original image is in projection frame.Anchor point refers to the point of composition control line, and the precision of the predeterminable control curve of projection frame module 40 forms the density of the anchor point of this curve.Anchor point on Bezier can be sought out by reference mark and bezier curve equation, and the anchor point on the initial control curve generating is known in the present embodiment, reference mark module 50 is according to controlling all anchor points on curve, utilize bezier curve equation, obtain the reference mark that this control curve is corresponding.Bezier can obtain two reference mark that minute are located at Bezier two ends, and secondary Bezier can obtain three reference mark, and three times Bezier can obtain four reference mark, the like.Reference mark is more, can do adjustment more accurately to controlling curve.
Compared to other curves as controlling curve, the present embodiment utilizes Bezier as controlling curve, there is distortion freely, simply, the feature of line smoothing, and utilize the dominating pair of vertices original image that Bezier is corresponding to adjust, can be more accurately, more flexibly original image is adjusted.
With reference to Fig. 9, Fig. 9 is the functional unit schematic diagram of the first generation module in Fig. 8 projection arrangement.
Described the first generation module 10 comprises:
Unit, reference mark 11, for obtaining the position at the reference mark after described movement;
The first generation unit 12, for according to the position at the reference mark after described movement, utilizes bezier curve equation, again obtains all anchor points on control curve corresponding to reference mark after described movement, generates new projection frame;
The second generation unit 13, for according to described new projection frame and predeterminable range ratio, regenerates the picture point in described new projection frame, generates described projected image.User moves reference mark, and unit, reference mark 11 obtains the position at the reference mark after moving, the coordinate figure at the reference mark after moving.Because variation has occurred for the position at reference mark, therefore, control curve corresponding to this reference mark of moving also can change thereupon.The first generation unit 12 is according to the coordinate figure at the reference mark after movement, and utilize bezier curve equation, again obtain all anchor points on control curve corresponding to reference mark after mobile, generate control curve corresponding to reference mark after mobile, thereby generate new projection frame.
Predeterminable range ratio can be to be arranged by terminal, can be also that terminal is according to the instruction setting of user's side.
Picture point refers to the point that forms original image.
Projection frame changes and generates after new projection frame, and the position of the picture point in projection frame also changes, and the second generation unit 13, according to new projection frame and predeterminable range ratio, regenerates the picture point in described new projection frame, generates projected image.For example, ratio between the distance value of the picture point in projection frame and each anchor point in projection frame (controlling the anchor point on curve) is predeterminable range ratio, picture point in mobile this region, ratio between the distance value of the anchor point in the picture point in the new projection frame generating and new projection frame is still predeterminable range ratio, regenerate the picture point in all new projection frame, generate projected image.Predeterminable range ratio can also be picture point in projection frame and the ratio between the distance value of each anchor point on a certain control curve.
In one embodiment of the present invention, the projection frame that described polygonal projection frame is rectangle.
The image of general projector projection is rectangle, and therefore the projection frame of rectangle is set, and by adjusting four reference mark of controlling on curve, thereby can simply to original image, adjust, and efficiency is higher.
In one embodiment of the present invention, described Bezier is three Beziers.
Bezier is three Beziers, so controls four reference mark of corresponding generation on curve for every.Three Beziers are more compared to the reference mark of Bezier, secondary Bezier, can adjust more accurately original image for user, and three Beziers are compared to four times or other Bezier repeatedly, calculate simpler, therefore after reference mark is moved, can be very fast calculate control curve corresponding to reference mark after mobile, seek out each anchor point of controlling on curve.
With reference to Figure 10, Figure 10 is the high-level schematic functional block diagram of projection arrangement of the present invention the 3rd embodiment.
In the 3rd embodiment of projection arrangement of the present invention, the difference of the present embodiment and the first embodiment and the second embodiment is, the present embodiment is on the basis of the first embodiment and the second embodiment, and described interpolation module 20 comprises:
Adding device 21 for responding the interpolation instruction at the newly-increased reference mark of user, adds newly-increased control curve in described projected image; Described newly-increased control curve and original control curve are divided into a plurality of subimages by described projection frame;
Acquiring unit 22, for according to described newly-increased control curve and described original control curve, utilizes bezier curve equation, obtains described newly-increased reference mark.
Newly-increased control curve is added in the interpolation instruction at the adding device 21 newly-increased reference mark of response user in projected image, and after having added so newly-increased control curve, the control curve in projected image can be divided into newly-increased control curve and original control curve.Newly-increased control curve is Bezier, newly-increased control curve and original control curve are divided into a plurality of subimages by projected image, it is the control curve increasing newly that subimage has a frame at least, if newly-increased control curve has many, one of them subimage may be the region all being surrounded by the control curve increasing newly, is likely also the region being surrounded by the control curve increasing newly and original control curve.Newly-increased control curve can be added on arbitrarily in projected image, and the two ends that the present embodiment is preferably controlled curve are connected with other control curves, former projection frame are divided into the subimage of several sealings, are conducive to reduce calculated amount, are more convenient for obtaining reference mark.Acquiring unit 22, according to newly-increased control curve and original control curve, utilizes bezier curve equation, obtains newly-increased reference mark.For example, newly-increased control curve one end is located on an original control curve, this original control curve is divided into two sections and controls curve, the other end is located on another original control curve, also this original control curve is divided into two sections and controls curve, utilize bezier curve equation to obtain the reference mark of newly-increased control curve, obtain respectively two sections of reference mark of controlling curve on two original control curves, obtain newly-increased reference mark, now, the reference mark in projected image comprises newly-increased reference mark and original reference mark.
With reference to Figure 11, Figure 11 is the functional unit schematic diagram of the second generation module 30 in Figure 10 projection arrangement.
In one embodiment of the present invention, described the second generation module 30 comprises:
The 3rd generation unit 31, original reference mark after moving for the described newly-increased reference mark after moving according to user and/or user, utilize bezier curve equation, again obtain described newly-increased reference mark after mobile and/or mobile after control curve corresponding to described original reference mark on all anchor points, generate new control curve;
The 4th generation unit 32, for according to described new control curve and described predeterminable range ratio, obtains the picture point in the described subimage that described new control curve is corresponding again, generates described new projected image.
User moves newly-increased reference mark and/or original reference mark, original reference mark after newly-increased reference mark after the 3rd generation unit 31 moves according to user and/or user move, utilize bezier curve equation, again obtain newly-increased reference mark after mobile and/or mobile after control curve corresponding to original reference mark on all anchor points, generate new control curve.This step is similar with the method in the second embodiment, and those skilled in the art can realize according to the method in the second embodiment this step, and therefore, therefore not to repeat here.
The 3rd generation unit 31 generates after new control curve, be subject to the impact of new control Curves, the position of the picture point in subimage also changes thereupon, the 4th generation unit 32 is according to new control curve and predeterminable range ratio, again obtain the picture point in the subimage of new control Curves impact, generate described new projected image.For example, picture point in the subimage of new control Curves impact and the ratio surrounding between the distance value of each anchor point on all control curves of this subimage are predeterminable range ratio, picture point in mobile this subimage, picture point in this subimage generating with and the ratio that surrounds between the distance value of each anchor point on all control curves of this subimage be still predeterminable range ratio, regenerate the picture point in all these subimages, generate new projected image.Predeterminable range ratio can also be picture point in subimage and the ratio between the distance value of each anchor point on a certain control curve.Predeterminable range ratio is herein identical with the predeterminable range ratio of mentioning in the second embodiment.
These are only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes instructions of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a projecting method, is characterized in that, comprises the following steps:
Human-computer interaction interface is provided, for user, moves default reference mark, the described reference mark after moving according to user, generates projected image;
Newly-increased reference mark is added in the interpolation instruction at the newly-increased reference mark of response user in described projected image;
Original reference mark that the described newly-increased reference mark of moving according to user and/or user move, generates new projected image.
2. projecting method as claimed in claim 1, is characterized in that, described in human-computer interaction interface is provided, move default reference mark for user, the described reference mark after moving according to user, before generating the step of projected image, also comprises:
Structure controls by many polygonal projection frame that curve forms; Described control curve is Bezier;
According to all anchor points on described control curve, and utilize bezier curve equation, obtain reference mark corresponding to described control curve.
3. projecting method as claimed in claim 2, is characterized in that, described described reference mark after moving according to user, and the step that generates projected image comprises:
Obtain the position at the described reference mark after moving;
Position according to the described reference mark after movement, utilizes bezier curve equation, again obtains all anchor points on control curve corresponding to reference mark after described movement, generates new projection frame;
According to described new projection frame and predeterminable range ratio, regenerate the picture point in described new projection frame, generate described projected image.
4. the projecting method as described in any one in claim 1-3, is characterized in that, the interpolation instruction at the newly-increased reference mark of described response user, and the step of adding newly-increased reference mark in described projected image comprises:
Newly-increased control curve is added in the interpolation instruction at the newly-increased reference mark of response user in described projected image; Described newly-increased control curve is Bezier, and described newly-increased control curve and original control curve are divided into a plurality of subimages by described projected image;
According to described newly-increased control curve and described original control curve, utilize bezier curve equation, obtain described newly-increased reference mark.
5. projecting method as claimed in claim 4, is characterized in that, original reference mark that described described newly-increased reference mark of moving according to user and/or user move, and the step that generates new projected image comprises:
Original reference mark after described newly-increased reference mark after moving according to user and/or user move, utilize bezier curve equation, again obtain described newly-increased reference mark after mobile and/or mobile after control curve corresponding to described original reference mark on all anchor points, generate new control curve;
According to described new control curve and predeterminable range ratio, again obtain the picture point in the described subimage that described new control curve is corresponding, generate described new projected image.
6. a projection arrangement, is characterized in that, comprising:
The first generation module, for human-computer interaction interface is provided, moves default reference mark for user, and the described reference mark after moving according to user, generates projected image;
Add module, for responding the interpolation instruction at the newly-increased reference mark of user, in described projected image, add newly-increased reference mark;
The second generation module, original reference mark of moving for the described newly-increased reference mark of moving according to user and/or user, generates new projected image.
7. projection arrangement as claimed in claim 6, is characterized in that, described device also comprises:
Projection frame module, controls for building by many polygonal projection frame that curve forms; Described control curve is Bezier;
Reference mark module, for according to all anchor points on described control curve, and utilizes bezier curve equation, obtains reference mark corresponding to described control curve.
8. projection arrangement as claimed in claim 7, is characterized in that, described the first generation module also comprises:
Unit, reference mark, for obtaining the position at the reference mark after described movement;
The first generation unit, for according to the position at the reference mark after described movement, utilizes bezier curve equation, again obtains all anchor points on control curve corresponding to reference mark after described movement, generates new projection frame;
The second generation unit, for according to described new projection frame and predeterminable range ratio, regenerates the picture point in described new projection frame, generates described projected image.
9. the projection arrangement as described in any one in claim 6-8, is characterized in that, described interpolation module comprises:
Adding device for responding the interpolation instruction at the newly-increased reference mark of user, adds newly-increased control curve in described projected image; Described newly-increased control curve is Bezier, and described newly-increased control curve and original control curve are divided into a plurality of subimages by described projected image;
Acquiring unit, for according to described newly-increased control curve and described original control curve, utilizes bezier curve equation, obtains described newly-increased reference mark.
10. projection arrangement as claimed in claim 9, is characterized in that, described the second generation module comprises:
The 3rd generation unit, original reference mark after moving for the described newly-increased reference mark after moving according to user and/or user, utilize bezier curve equation, again obtain described newly-increased reference mark after mobile and/or mobile after control curve corresponding to described original reference mark on all anchor points, generate new control curve;
The 4th generation unit, for according to described new control curve and predeterminable range ratio, obtains the picture point in the described subimage that described new control curve is corresponding again, generates described new projected image.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410239253.4A CN104020925B (en) | 2014-05-30 | 2014-05-30 | Projecting method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410239253.4A CN104020925B (en) | 2014-05-30 | 2014-05-30 | Projecting method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104020925A true CN104020925A (en) | 2014-09-03 |
| CN104020925B CN104020925B (en) | 2017-09-29 |
Family
ID=51437711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410239253.4A Active CN104020925B (en) | 2014-05-30 | 2014-05-30 | Projecting method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104020925B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105578093A (en) * | 2015-12-18 | 2016-05-11 | 深圳市帅映科技有限公司 | Projector compatible with multiple interfaces |
| CN107181883A (en) * | 2016-03-11 | 2017-09-19 | 卡西欧计算机株式会社 | Device, method and the recording medium of correction page image |
| CN111586384A (en) * | 2020-05-29 | 2020-08-25 | 燕山大学 | Projection image geometric correction method based on Bessel curved surface |
| CN115118943A (en) * | 2021-03-23 | 2022-09-27 | 精工爱普生株式会社 | Projection image adjustment method, information processing device, and projection system |
| CN116405647A (en) * | 2023-03-29 | 2023-07-07 | 北京凯视达科技股份有限公司 | Method and device for geometrically correcting projection picture, storage medium and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102291553A (en) * | 2011-06-27 | 2011-12-21 | 北京航空航天大学 | Interactive multi-channel projection geometric correction method based on intelligent mobile terminal |
| CN102541488A (en) * | 2010-12-09 | 2012-07-04 | 深圳华强游戏软件有限公司 | Image processing method and system for realizing seamless alignment of projection screen |
| 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 |
-
2014
- 2014-05-30 CN CN201410239253.4A patent/CN104020925B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102541488A (en) * | 2010-12-09 | 2012-07-04 | 深圳华强游戏软件有限公司 | Image processing method and system for realizing seamless alignment of projection screen |
| CN102291553A (en) * | 2011-06-27 | 2011-12-21 | 北京航空航天大学 | Interactive multi-channel projection geometric correction method based on intelligent mobile terminal |
| 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 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105578093A (en) * | 2015-12-18 | 2016-05-11 | 深圳市帅映科技有限公司 | Projector compatible with multiple interfaces |
| CN107181883A (en) * | 2016-03-11 | 2017-09-19 | 卡西欧计算机株式会社 | Device, method and the recording medium of correction page image |
| CN111586384A (en) * | 2020-05-29 | 2020-08-25 | 燕山大学 | Projection image geometric correction method based on Bessel curved surface |
| CN111586384B (en) * | 2020-05-29 | 2022-02-11 | 燕山大学 | Projection image geometric correction method based on Bessel curved surface |
| CN115118943A (en) * | 2021-03-23 | 2022-09-27 | 精工爱普生株式会社 | Projection image adjustment method, information processing device, and projection system |
| CN116405647A (en) * | 2023-03-29 | 2023-07-07 | 北京凯视达科技股份有限公司 | Method and device for geometrically correcting projection picture, storage medium and electronic equipment |
| CN116405647B (en) * | 2023-03-29 | 2024-02-06 | 北京凯视达科技股份有限公司 | Method and device for geometrically correcting projection picture, storage medium and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104020925B (en) | 2017-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104020925A (en) | Projection method and device | |
| TWI490772B (en) | Method and apparatus for adapting custom control components to a screen | |
| CN103716602B (en) | The geometric correction method of projected image, Apparatus and system | |
| CN110099266A (en) | Projector's frame correction method, device and projector | |
| CN104035664A (en) | Display method and device for user interface of application program | |
| CN107547879A (en) | A kind of bearing calibration of projection imaging, device and laser television | |
| CN103634544A (en) | A projection method and an electronic device | |
| CN104349095A (en) | Image regulating method, image regulating device and electronic equipment | |
| CN104461301A (en) | Method for achieving automatic aligning of screen windows based on world coordinates | |
| JP2017050616A (en) | Display unit and control method | |
| CN105094507A (en) | Method and system for implementing fillet icon focus registration in 3D UI | |
| JP2014077862A5 (en) | ||
| CN107050859B (en) | Unity 3D-based method for dragging camera to displace in scene | |
| CN107197222B (en) | Method and device for generating correction information of projection equipment | |
| CN108012129B (en) | Method for adjusting special-shaped image | |
| CN105915872B (en) | The output intent and projection arrangement of image | |
| CN105954960A (en) | Spherical surface projection display method, spherical surface projection display system and household electrical appliance | |
| CN103605436B (en) | Interaction projection location method and interaction projection device | |
| CN105808054A (en) | Control method and control device for control icon, terminal | |
| CN101950247A (en) | Method for correcting deformed picture | |
| CN104123748A (en) | Screen space point light source based method for achieving real-time dynamic shadows | |
| CN113271445B (en) | Floating dynamic projection method, projection medium generator and system | |
| CN113259653A (en) | Method, device, equipment and system for customizing dynamic projection | |
| CN105446496A (en) | Cursor control device and cursor control method thereof | |
| CN104965654B (en) | A kind of method and system of head portrait adjustment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: Nanshan District science and Technology Park, Xili Street North Pine Hill new road Shenzhen 518000 Guangdong province No. 7 blue light technology building block B 212 units Applicant after: SHENZHEN CREATEK ELECTRONICS CO., LTD. Address before: Nanshan District science and Technology Park, Xili Street North Pine Hill new road Shenzhen 518000 Guangdong province No. 7 blue light technology building block B 212 units Applicant before: Shenzhen Createk Electronic Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |