CN103902124B - 3D hologram interaction systems based on track identification and control method thereof - Google Patents

Abstract

The invention discloses a kind of 3D hologram interaction systems based on track identification and control method thereof, this control method includes: the capacitance variations of S1, in real time detection touch screen, thus identifies touch track；After S2, the touch track obtaining identification resolve, it is thus achieved that corresponding control instruction；S3, according to obtain control instruction, control 3D hologram projected objects perform corresponding action.The present invention can detect any touch track of user and carry out judging to resolve, thus be converted to control instruction, control 3D hologram projected objects and perform the action corresponding with touch track, so that user and line holographic projections carry out interaction, can be widely applied in various holographic projection system.

Description

3D hologram interaction systems based on track identification and control method thereof

Technical field

The present invention relates to the control field of holographic interaction system, particularly relate to a kind of 3D hologram based on track identification Interaction systems and control method thereof.

Background technology

Along with the development of society, the progress of technology, at present in various commercial exhibition and sale of products meeting, often see various exhibition Sales counter, the billboard of sales exhibition and the various advertising display casing of pin, manufacturer wishes in this way in face of visitor The beautiful image of exhibiting product.Being currently used for showing that the line holographic projections presentation device of product mostly is case structure, it shows plane Being one side, two-sided, three or four sides, display mode mainly includes that image is upward or image situation down.

So that visitor is best understood from product, it is generally required to allow visitor and presentation device carry out interaction, patent CN101790105A then discloses a kind of holographic interaction system and construction method thereof, and this system is able to carry out computer by one The control device of code, in order to receive and to process one or more the state physical quantitys from physical model controller, then produces Raw corresponding view data gives image display device, and by three-dimensional display system, display and the thing of physical model controller The virtual image that the change of reason amount is correlated with, this system is to provide one on existing exhibition market to present stereoscopic image and can have Higher interactive equipment.But the interaction that this equipment embodies the most only is comparable to show physical model controller in real time On interactive change, be not truly carry out interaction with line holographic projections.

Generally speaking, the interaction to line holographic projections proposed in current technology, it is generally based on the control that interface is overall, as Start shooting, shut down, change the operations such as image, and according to the content of projection, the three-dimensional information shown can not be manipulated, current Line holographic projections is shown, when visitor needs the image observing the different angles of same object, needs to move to different angles and goes Observing rather than realize the observation of different angles by carrying out interaction with system, display form is single, and friendly is poor, and Due to the problem of viewing angle, visitor cannot observe the projection angled situation of picture, thus cannot comprehensively carry out Observe, it is impossible to reach to carry out interactive purpose with holographic projection system.

Summary of the invention

In order to solve above-mentioned technical problem, it is an object of the invention to provide 3D hologram of based on track identification interaction system System.It is a further object of the present invention to provide the control method of 3D hologram interaction systems based on track identification.

The technical solution adopted for the present invention to solve the technical problems is:

A kind of control method of 3D hologram interaction systems based on track identification, including:

The capacitance variations of S1, in real time detection touch screen, thus identify touch track；

After S2, the touch track obtaining identification resolve, it is thus achieved that corresponding control instruction；

S3, according to obtain control instruction, control 3D hologram projected objects perform corresponding action.

Further, described step S1, including:

The capacitance variations of S11, in real time detection touch screen, uses clustering method to determine the position of touch point；

S12, judge that touch screen is single-touch or multiple point touching, if single-touch, then perform step S13, otherwise Perform step S14；

S13, the position coordinates of acquisition touch point, then judge whether the position coordinates of touch point is positioned at 3D hologram projection In object conversion zone on the touchscreen, the most then using the position coordinates of touch point that obtains in real time as touch track also Terminate, the most directly terminate；

S14, obtain in real time the position coordinates of multiple touch points, and multiple touched according to what two or more obtained the most in the same time Touch position coordinates a little, it may be judged whether have fixing point, if having, then perform step S15, otherwise perform step S16；

S15, calculate in multiple touch points of synchronization other touch point in addition to fixing point to the distance of fixing point, And using farthest for a distance fixing point touch point as relative touch point, and then calculate the relative touch point in adjacent two moment Between the direction of motion and motion amplitude, and as after touch track terminate；

S16, the direction of motion obtained between multiple touch points in adjacent two moment are as touch track.

Further, described step S11, including:

The capacitance variations of S111, in real time detection touch screen, it is thus achieved that the real-time capacitance variations value of each passage of touch screen, with Time the capacitance variations value less than change threshold is set to zero, become according to the electric capacity of the X passage of touch screen obtained and Y passage respectively Change value sets up changing value sequence；

S112, calculate the variation tendency sequence of X passage and Y passage respectively according to below equation:

In above formula, j=1,2,3 ... j_max, and

Wherein, i and j is natural number, j_maxRepresenting X passage sum or the Y total number of channels of touch screen, C [j] represents change The jth element of value sequence, CC [j] represents the jth element of variation tendency sequence；

S113, combine below equation and calculate X passage and the sequence of differences of Y passage respectively:

CCC[j]=CC[j+1]-CC[j]

Wherein, CCC [j] represents the jth element of sequence of differences, works as j=j_maxTime, make CC [j+1]=0；

S114, it is the sequence of element of-2 according to element value in the sequence of differences of X passage obtained and the sequence of differences of Y passage Number determine the position of touch point.

Further, the position of the multiple touch points obtained the most in the same time according to two or more described in described step S14 Coordinate, it may be judged whether have fixing point, itself particularly as follows:

The position coordinates of multiple touch points two or more obtained the most in the same time carries out comparison one by one respectively, if not Abscissa difference and the vertical coordinate difference of two touch points obtained in the same time are respectively less than predetermined threshold value, then judge that these two are touched Touching is some fixing point, and selects the position coordinates position coordinates as fixing point of any of which touch point.

Further, described step S15, including:

S151, calculate other touch point in addition to fixing point in multiple touch points of synchronization to fixing point away from From, and using farthest for a distance fixing point touch point as relative touch point；

S152, according to the position coordinates of the relative touch point in adjacent two moment and the position coordinates of fixing point, calculate Go out two relative touch points relative to the direction of rotation of fixing point and the anglec of rotation, i.e. obtain the relative touch in adjacent two moment The direction of motion between point and motion amplitude, and terminate as after touch track.

Further, described step S16, itself particularly as follows:

Judge whether do relatively close motion between multiple touch points in adjacent two moment or be relatively distant from motion, if It is then to judge that touch track is effective, obtains its relative motion trend as touch track, otherwise terminate.

What the present invention solved that its technical problem used another solution is that

A kind of based on track identification the 3D hologram interaction systems of the control method in application claim 1, including control Rack processed, touch screen, for providing the laid out flat source of 3D hologram stereo-picture, for the image that laid out flat source is provided Carry out reflecting and the holographic imaging plate of phantom imaging and for performing the 3D hologram based on track identification of claim 1 The controller of the control method of interaction systems；

Described touch screen is combined by transparent capacitive touch control film and clear glass and is formed, and described touch screen and laid out flat source are equal Being connected with controller, described controller is arranged in control rack；

The showroom being arranged over square shape of described control rack, described laid out flat source is horizontally disposed at exhibition Show that the bottom surface of room, described holographic imaging plate are arranged on the upside in laid out flat source and become 45 degree with the upper surface in laid out flat source Angle, described touch screen is arranged on the front side of holographic imaging plate and the inner side of touch screen and becomes 45 degree of angles with holographic imaging plate, described tactile Touch screen and constitute the one side of showroom.

The invention has the beneficial effects as follows: the controlling party of a kind of based on track identification the 3D hologram interaction systems of the present invention Method, by detecting in real time the capacitance variations of touch screen, then identifies and obtains touch track, and then obtains after resolving corresponding Control instruction, then controls 3D hologram projected objects and performs corresponding action, and this method can detect any touch of user Track also carries out judging to resolve, thus is converted to control instruction, controls 3D hologram projected objects and performs relative with touch track The action answered, so that user and line holographic projections carry out interaction.

Another of the present invention provides the benefit that: a kind of based on track identification the 3D hologram interaction systems of the present invention, bag Including control rack, touch screen, laid out flat source, holographic imaging plate and controller, control rack is arranged over the square bodily form The showroom of shape, laid out flat source is horizontally disposed at the bottom surface of showroom, and holographic imaging plate is arranged on the upper of laid out flat source Side and the upper surface with laid out flat source become 45 degree of angles, and described touch screen is arranged on the front side of holographic imaging plate and the interior of touch screen Side becomes 45 degree of angles with holographic imaging plate, and described touch screen constitutes the one side of showroom, and controller can detect touching on touch screen Touch track thus control 3D hologram move corresponding with touch track of projection execution of the image that laid out flat source is provided Making, therefore user can realize the interaction with line holographic projections by carrying out various touch operation on the touch screen of native system, Simple to operate and system friendly is high.

Accompanying drawing explanation

The invention will be further described with embodiment below in conjunction with the accompanying drawings.

Fig. 1 is the flow process signal of the control method of a kind of based on track identification the 3D hologram interaction systems of the present invention Figure；

Fig. 2 is the first schematic diagram that embodiments of the invention one carry out track identification；

Fig. 3 is the second schematic diagram that embodiments of the invention one carry out track identification；

Fig. 4 is the 3rd schematic diagram that embodiments of the invention one carry out track identification；

Fig. 5 is the 4th schematic diagram that embodiments of the invention one carry out track identification；

Fig. 6 is the 5th schematic diagram that embodiments of the invention one carry out track identification；

Fig. 7 is the 6th schematic diagram that embodiments of the invention one carry out track identification；

Fig. 8 is the structural representation of a kind of based on track identification the 3D hologram interaction systems of the present invention；

Fig. 9 is the principle schematic of a kind of based on track identification the 3D hologram interaction systems in Fig. 8.

Detailed description of the invention

With reference to Fig. 1, the invention provides the control method of a kind of 3D hologram interaction systems based on track identification, bag Include:

The capacitance variations of S1, in real time detection touch screen, thus identify touch track；

After S2, the touch track obtaining identification resolve, it is thus achieved that corresponding control instruction；

S3, according to obtain control instruction, control 3D hologram projected objects perform corresponding action.

It is further used as preferred embodiment, described step S1, including:

The capacitance variations of S11, in real time detection touch screen, uses clustering method to determine the position of touch point；

S12, judge that touch screen is single-touch or multiple point touching, if single-touch, then perform step S13, otherwise Perform step S14；

S13, the position coordinates of acquisition touch point, then judge whether the position coordinates of touch point is positioned at 3D hologram projection In object conversion zone on the touchscreen, the most then using the position coordinates of touch point that obtains in real time as touch track also Terminate, the most directly terminate；

S14, obtain in real time the position coordinates of multiple touch points, and multiple touched according to what two or more obtained the most in the same time Touch position coordinates a little, it may be judged whether have fixing point, if having, then perform step S15, otherwise perform step S16；

S15, calculate in multiple touch points of synchronization other touch point in addition to fixing point to the distance of fixing point, And using farthest for a distance fixing point touch point as relative touch point, and then calculate the relative touch point in adjacent two moment Between the direction of motion and motion amplitude, and as after touch track terminate；

S16, the direction of motion obtained between multiple touch points in adjacent two moment are as touch track.

It is further used as preferred embodiment, described step S11, including:

The capacitance variations of S111, in real time detection touch screen, it is thus achieved that the real-time capacitance variations value of each passage of touch screen, with Time the capacitance variations value less than change threshold is set to zero, become according to the electric capacity of the X passage of touch screen obtained and Y passage respectively Change value sets up changing value sequence；

S112, calculate the variation tendency sequence of X passage and Y passage respectively according to below equation:

In above formula, j=1,2,3 ... j_max, and

Wherein, i and j is natural number, j_maxRepresenting X passage sum or the Y total number of channels of touch screen, C [j] represents change The jth element of value sequence, CC [j] represents the jth element of variation tendency sequence；

S113, combine below equation and calculate X passage and the sequence of differences of Y passage respectively:

CCC[j]=CC[j+1]-CC[j]

Wherein, CCC [j] represents the jth element of sequence of differences, works as j=j_maxTime, make CC [j+1]=0；

S114, it is the sequence of element of-2 according to element value in the sequence of differences of X passage obtained and the sequence of differences of Y passage Number determine the position of touch point.

It is further used as preferred embodiment, is obtained the most in the same time according to two or more described in described step S14 The position coordinates of multiple touch points, it may be judged whether have fixing point, itself particularly as follows:

The position coordinates of multiple touch points two or more obtained the most in the same time carries out comparison one by one respectively, if not Abscissa difference and the vertical coordinate difference of two touch points obtained in the same time are respectively less than predetermined threshold value, then judge that these two are touched Touching is some fixing point, and selects the position coordinates position coordinates as fixing point of any of which touch point.

It is further used as preferred embodiment, described step S15, including:

S151, calculate other touch point in addition to fixing point in multiple touch points of synchronization to fixing point away from From, and using farthest for a distance fixing point touch point as relative touch point；

S152, according to the position coordinates of the relative touch point in adjacent two moment and the position coordinates of fixing point, calculate Go out two relative touch points relative to the direction of rotation of fixing point and the anglec of rotation, i.e. obtain the relative touch in adjacent two moment The direction of motion between point and motion amplitude, and terminate as after touch track.

Be further used as preferred embodiment, described step S16, itself particularly as follows:

Judge whether do relatively close motion between multiple touch points in adjacent two moment or be relatively distant from motion, if It is then to judge that touch track is effective, obtains its relative motion trend as touch track, otherwise terminate.

Present invention also offers a kind of based on track identification the 3D hologram of control method in application claim 1 mutual Dynamic system, including control rack, touch screen, for providing the laid out flat source of 3D hologram stereo-picture, for plane exhibition Show the image that source provides carry out reflecting and the holographic imaging plate of phantom imaging and for perform claim 1 based on track The controller of the control method of the 3D hologram interaction systems identified；

Described touch screen is combined by transparent capacitive touch control film and clear glass and is formed, and described touch screen and laid out flat source are equal Being connected with controller, described controller is arranged in control rack；

The showroom being arranged over square shape of described control rack, described laid out flat source is horizontally disposed at exhibition Show that the bottom surface of room, described holographic imaging plate are arranged on the upside in laid out flat source and become 45 degree with the upper surface in laid out flat source Angle, described touch screen is arranged on the front side of holographic imaging plate and the inner side of touch screen and becomes 45 degree of angles with holographic imaging plate, described tactile Touch screen and constitute the one side of showroom.

Below in conjunction with detailed description of the invention, the present invention will be further described.

Embodiment one

A kind of control method of 3D hologram interaction systems based on track identification, including:

The capacitance variations of S1, in real time detection touch screen, thus identify touch track, specifically include:

The capacitance variations of S11, in real time detection touch screen, uses clustering method to determine the position of touch point, and this step includes Following sub-step:

The capacitance variations of S111, in real time detection touch screen, it is thus achieved that the real-time capacitance variations value of each passage of touch screen, with Time the capacitance variations value less than change threshold is set to zero, become according to the electric capacity of the X passage of touch screen obtained and Y passage respectively Change value sets up changing value sequence；

S112, calculate the variation tendency sequence of X passage and Y passage respectively according to below equation:

In above formula, j=1,2,3 ... j_max, and

Wherein, i and j is natural number, j_maxRepresenting X passage sum or the Y total number of channels of touch screen, C [j] represents change The jth element of value sequence, CC [j] represents the jth element of variation tendency sequence；

S113, combine below equation and calculate X passage and the sequence of differences of Y passage respectively:

CCC[j]=CC[j+1]-CC[j]

Wherein, CCC [j] represents the jth element of sequence of differences, works as j=j_maxTime, make CC [j+1]=0；

S114, it is the sequence of element of-2 according to element value in the sequence of differences of X passage obtained and the sequence of differences of Y passage Number determine the position of touch point；

Here with Y passage for enumerating an object lesson, it is considered to the situation of two touch, it is assumed that Y total number of channels j_maxFor 10, the real-time capacitance variations value of each passage is followed successively by that { 1,2,43,22,3,15,52,59,12,5}, change threshold is 20, then Can obtain the changing value sequence of Y passage be C [j]=0,0,43,22,0,0,52,59,0,0}, wherein j=1,2,3 ..., 10, will The changing value sequence of Y passage substitutes in the formula of step S112, calculate obtain the variation tendency sequence of Y passage be CC [j]=0, 0,1 ,-1 ,-1,0,1,1 ,-1,0}, the formula further according to step S113 calculates, and the sequence of differences that can obtain Y passage is CCC [j]={ 0,1 ,-2,0,1,1,0 ,-2,1,0}, therefore, element value is the serial number 3 and 8 of the element of-2, and i.e. touch point is at Y passage The 3rd passage and the 8th passage on, in sequence of differences element value be-2 i.e. represent at this be maximum occur position, in conjunction with Y lead to The changing value sequence C [j] in road understands C [3]=43, C [8]=59, and this calculating is correct.In like manner can be according to the electric capacity of X passage Changing value calculates the position that the maximum of abscissa occurs, so that it is determined that the position of touch point.

S12, judge that touch screen is single-touch or multiple point touching, if single-touch, then perform step S13, otherwise Perform step S14；

S13, the position coordinates of acquisition touch point, then judge whether the position coordinates of touch point is positioned at 3D hologram projection In object conversion zone on the touchscreen, the most then using the position coordinates of touch point that obtains in real time as touch track also Terminate, the most directly terminate；Conversion zone refers to 3D hologram projected objects is converted into viewing area when showing on the touchscreen Territory；

S14, obtain in real time the position coordinates of multiple touch points, and multiple touched according to what two or more obtained the most in the same time Touch position coordinates a little, it may be judged whether have fixing point, if having, then perform step S15, otherwise perform step S16；

Specifically, the position coordinates of the multiple touch points obtained the most in the same time according to two or more, it may be judged whether have solid Fixed point, it is particularly as follows: the position coordinates of multiple touch points two or more obtained the most in the same time carries out comparison one by one respectively, If abscissa difference and vertical coordinate difference in two touch points obtained the most in the same time are respectively less than predetermined threshold value, then judging should Two touch points are fixing point, and select the position coordinates position coordinates as fixing point of any of which touch point；

S15, calculate in multiple touch points of synchronization other touch point in addition to fixing point to the distance of fixing point, And using farthest for a distance fixing point touch point as relative touch point, and then calculate the relative touch point in adjacent two moment Between the direction of motion and motion amplitude, and as after touch track terminate, specifically include:

S151, calculate other touch point in addition to fixing point in multiple touch points of synchronization to fixing point away from From, and using farthest for a distance fixing point touch point as relative touch point；

S152, according to the position coordinates of the relative touch point in adjacent two moment and the position coordinates of fixing point, calculate Go out two relative touch points relative to the direction of rotation of fixing point and the anglec of rotation, i.e. obtain the relative touch in adjacent two moment The direction of motion between point and motion amplitude, and terminate as after touch track；

Here consider the situation of two touch, use the method mentioned in step S11, continuous two moment will obtain 8 groups Coordinate figure, as illustrated in fig. 2, it is assumed that four touch points that the first moment obtained are A, A1, A2, O, four of the acquisition of the second moment are touched Touch a little for B, B1, B2, O, because there is identical point O, so O is the fixing point mentioned in step S14, the position coordinates of fixing point Coordinate (x for O point_O, y_O)；With reference to shown in Fig. 3, according to the position coordinates of A, A1, A2 use following formula calculate A, A1, A2 3 with The distance of fixing point:

$\left\{\begin{array}{c}\mathrm{OA}=\sqrt{{(x_A-x_O)}^2+{(y_A-y_O)}^2}\\ \mathrm{OA}1=\sqrt{{(x_{A1}-x_O)}^2+{(y_{A1}-y_O)}^2}\\ \mathrm{OA}2=\sqrt{{(x_{A2}-x_O)}^2+{(y_{A2}-y_O)}^2}\end{array}\right.$

Can calculate OA ＞ OA1 and OA ＞ OA2 according to Fig. 3, therefore A point is the relative touch point in the first moment, notably , calculate according to the method for step S11,4 touch points will be obtained at synchronization, the most only 2 is correct Touch point, correct touch point can be extracted by this method, be defined herein as relative touch point.Same, after calculating Obtain the relative touch point that some B was the second moment, therefore according to the position coordinates of O, A, B 3, can set up as shown in Figure 4 Triangle, therefore can obtain A, B point anglec of rotation relative to fixing point O according to calculating following formula:

$\cos \mathrm{\θ}=\frac{{\mathrm{OB}}^2+{\mathrm{OA}}^2-{\mathrm{AB}}^2}{2\×\mathrm{OB}\×\mathrm{OA}}$

Because the position coordinates that O, A, B are 3 is it is known that the most also can obtain the rotation relative to fixing point O of A, B point rapidly Turn direction, i.e. obtain the relative touch point in the first adjacent moment and the second moment direction of motion between A, B and motion amplitude, Therefore as touch track.

S16, the direction of motion obtained between multiple touch points in adjacent two moment are as touch track: judge adjacent two Whether do relatively close motion between multiple touch points in individual moment or be relatively distant from motion, the most then judging that touch track has Effect, obtains its relative motion trend as touch track, otherwise terminates；

When the touch situation of touch screen is multiple point touching and when not having fixing point, generally scale motion, multiple touch points Point-blank carry out stretching and near action, equally as a example by two touch, obtaining 8 groups of seats according to the method for step S11 Scale value, it is judged that whether these 8 groups of coordinate figures are distributed evenly on two straight lines, i.e. calculates often group coordinate figure and the angle of coordinate axes, If there being 4 angles identical, it is determined that for scaling motion, here, the definition upper left corner is zero, calculates two moment respectively i.e. Distance between two touch points detected in twice touch, if the distance during twice touch between two touch points Reduce, it is judged that for reduction operation, if instead distance increases, be then judged as amplifieroperation.

When touch track point is situation as shown in Figure 5, calculate 8 groups of coordinate figures and the folder of X-axis that two moment obtain Angle, as a example by the point of A1 in scheming, it with the tangent value of the angle of X-axis isCalculate 8 representated by 8 groups of coordinate figures The angle of individual touch point and X-axis, it may be judged whether there are 4 angles identical, and specific to each moment exist 2 points with The angle of X-axis is identical, if it does, i.e. judge that user does zoom operations, first calculate first the moment obtain two touch points it Between distance, then calculate second the moment obtain two touch points between distance.As shown in FIG., after calculating, figure is judged These four points of touch point A2, B2 that touch point A1, B1 and the second moment that first moment of midpoint obtains obtains and the angle phase of X-axis With, therefore judge that user does scaling motion, the most first calculate the distance between touch point A1, B1 of the first moment acquisition $L1=\sqrt{{(x_{A1}-x_{B1})}^2+{(y_{A1}-y_{B1})}^2},$ Calculate the distance between touch point A2, B2 of the second moment acquisition again $L2=\sqrt{{(x_{A2}-x_{B2})}^2+{(y_{A2}-y_{B2})}^2},$ If L1 > L2, it is judged that for reduction operation, resolve to control instruction and perform I.e. correspond to control that holographic object is proportional reduces, if L1 < L2, it is judged that for amplifieroperation, would resolve to control instruction and perform I.e. correspond to control holographic object to the proportional amplification of surrounding.It should be noted that in zoom operations, it is not necessary to consider to remove The situation of pseudo-touch point, because touch point is symmetrical existence, as shown in Figure 5, because touch point C1, D1 are and A1, B1 couple Claiming to exist, touch point C2, D2 and A2, B2 symmetry exist, no matter A1, B1, A2, B2 be true touch point or C1, D1, C2, D2 are true touch points, and L1, L2 of calculating are constant, do not affect the judgement reduced and amplify, so only need to calculate and X Direction of principal axis becomes the movement tendency of 4 touch points on the straight line of fixed angle.

It addition, as shown in Figure 6, when touch track point moves along X-direction, the first moment measured and obtains two touch points The ordinate value of A1, B1 is equal.y_A1=y_B1, the measurement of the second moment obtains two touch point A2, and the ordinate value of B2 is equal.y_A2=y_B2, And two the ordinate value equal acquisition coordinate figures obtained with a upper moment are the most equal, and i.e. four touch points are along the X direction On straight line, y_A1=y_B1=y_A2=y_B2.At this moment judge that user is to control 3D hologram projected objects to zoom in and out action, by meter Calculate judgement to be by amplifying or reduction operation, calculate respectively the distance of 2 that two moment detect: A1, B1 2 away from From for $L1=\sqrt{{(x_{A1}-x_{B1})}^2+{(y_{A1}-y_{B1})}^2},$ The distance that A2, B2 are 2 is $L2=\sqrt{{(x_{A2}-x_{B2})}^2+{(y_{A2}-y_{B2})}^2},$ If L1 > L2, it is judged that user carries out reduction operation, resolve to control instruction and perform i.e. to correspond to control 3D hologram projection thing Body is proportional to be reduced, if L1 < L2, it is judged that user would be amplified operation, resolves to control instruction and performs i.e. to correspond to control The proportional amplification of 3D hologram projected objects.

Same, during as it is shown in fig. 7, touch track point moves along the y-axis direction, the first moment measured and obtains two touch points The abscissa value of A1, B1 is equal, x_A1=x_B1.Second moment measured and obtains two touch point A2, and the ordinate value of B2 is equal, x_A2=x_B2。 And with upper one the moment obtain two ordinate values equal, i.e. four touch points on the straight line along x direction, x_A1=x_B1 =x_A2=x_B2.Judge that user zooms in and out operation the most equally, put by calculating judgement 3D hologram to be controlled projected objects Still work is reduced greatly, same, use the distance calculating apart from computing formula respectively at 2 that two moment detect, enter Row judges.

It should be noted that what Fig. 2～Fig. 7 represented is the schematic diagram of different touch situation, actual removable is divided into difference more For detailed embodiment, these figures represent touch point by same mark and does not results in misunderstanding, therefore these figures have one Partial touch point have employed same mark and represents.

After S2, the touch track obtaining identification resolve, it is thus achieved that corresponding control instruction；Here, touch track with The corresponding relation of control instruction is predefined and stores in the controller, after recognizing touch track, directly resolves It is achieved with corresponding control instruction.According to description above, when the touch situation of touch screen is single-touch, touch Track is the position coordinates of single touch point, and the corresponding control instruction of general definition is touched for 3D hologram projected objects is moved to this Touch position a little；When the touch situation of touch screen is multiple point touching and when having fixing point, and touch track is adjacent two moment The direction of motion between relative touch point and motion amplitude, i.e. two relative touch points are relative to the direction of rotation of fixing point and rotation Gyration, the control instruction of definition correspondence is carried out according to this direction of rotation and the anglec of rotation for controlling 3D hologram projected objects Rotate；When the touch situation of touch screen is multiple point touching and when not having fixing point, and generally zoom operations, now touch track is Relative motion trend between multiple touch points, the most close to each other or be located remotely from each other, define movement tendency pair close to each other The control instruction answered is to control the instruction that 3D hologram projected objects reduces, on the contrary, the movement tendency being located remotely from each other is corresponding Control instruction is to control the instruction that 3D hologram projected objects is amplified.Make it should be noted that the present embodiment only lists to meet Main several touch situations of user's operating habit, using other touch operation as illegal operation process, if it practice, with The progress of society, user operating habit changes, then the touch track that redefinable is legal, the invention is not restricted to protect Protect several touch track being previously mentioned in presents.

S3, according to obtain control instruction, control 3D hologram projected objects perform corresponding action.

Embodiment two

With reference to shown in Fig. 8, a kind of based on track identification the 3D hologram of the control method in Application Example one is interactive System, including control rack 1, touch screen 2, for providing the laid out flat source 3 of 3D hologram stereo-picture, for plane exhibition Show the image that source provides carry out reflecting and the holographic imaging plate 4 of phantom imaging and for perform embodiment one based on track The controller of the control method of the 3D hologram interaction systems identified；

Described touch screen 2 is combined by transparent capacitive touch control film and clear glass and is formed, described touch screen 2 and laid out flat source 3 are all connected with controller, and described controller is arranged in control rack 1；

The showroom 5 being arranged over square shape of described control rack 1, described laid out flat source 3 is flatly arranged In the bottom surface of showroom 5, described holographic imaging plate 4 be arranged on laid out flat source 3 upside and with the upper surface in laid out flat source 3 Becoming 45 degree of angles, the inner side of front side and touch screen 2 that described touch screen 2 is arranged on holographic imaging plate 4 becomes 45 degree with holographic imaging plate 4 Angle, described touch screen 2 constitutes the one side of showroom 5.

With reference to shown in Fig. 9, holographic imaging plate 4 be arranged on laid out flat source 3 upside and with the upper surface in laid out flat source 3 Angulation θ is 45 degree, and holographic imaging plate 4 also becomes 45 degree of angles, touch screen 2 and laid out flat with the inner side of touch screen 2 simultaneously Source 3 is vertical.As shown in FIG., when the distance on 3D hologram stereo-picture that laid out flat source 3 provides is L1, it corresponds to entirely Distance on breath imaging plate 4 isBecause angle formed by holographic imaging plate 4 and laid out flat source 3 and touch screen 2 Degree is all 45 degree, so the distance corresponded on touch screen is L3=L1, therefore carries out operating actual being equivalent on touch screen 2 The 3D hologram stereo-picture that laid out flat source 3 provides operates, and the 3D hologram interaction systems of this structure, make User can operate in the optional position of touch screen 2, and the 3D hologram being equivalent to provide in laid out flat source 3 is three-dimensional Optional position on image operates.

Controller includes:

First module, for the capacitance variations of detection touch screen in real time, thus identifies touch track；

Second module, after to identifying that the touch track obtained resolves, it is thus achieved that corresponding control instruction；

Three module, for according to the control instruction obtained, controls 3D hologram projected objects and performs corresponding action.

About the concrete function of the modules of controller, can refer to the description of embodiment one, be not repeated here and retouch State.

It is above the preferably enforcement of the present invention is illustrated, but the invention is not limited to described enforcement Example, those of ordinary skill in the art it may also be made that all equivalent variations on the premise of spirit of the present invention or replacing Changing, modification or the replacement of these equivalents are all contained in the application claim limited range.

Claims (6)

1. the control method of a 3D hologram interaction systems based on track identification, it is characterised in that comprise the following steps:

The capacitance variations of S1, in real time detection touch screen, thus identify touch track；

After S2, the touch track obtaining identification resolve, it is thus achieved that corresponding control instruction；

S3, according to obtain control instruction, control 3D hologram projected objects perform corresponding action；

Described step S1, including:

The capacitance variations of S11, in real time detection touch screen, uses clustering method to determine the position of touch point；

S12, judge that touch screen is single-touch or multiple point touching, if single-touch, then perform step S13, otherwise perform Step S14；

S13, the position coordinates of acquisition touch point, then judge whether the position coordinates of touch point is positioned at 3D hologram projected objects In conversion zone on the touchscreen, the most then the position coordinates of the touch point obtained in real time as touch track and is terminated, The most directly terminate；

The position coordinates of S14, the in real time multiple touch points of acquisition, and the multiple touch points obtained the most in the same time according to two or more Position coordinates, it may be judged whether have fixing point, if having, then perform step S15, otherwise perform step S16；

S15, calculate in multiple touch points of synchronization other touch point except fixing point in addition to the distance of fixing point, and general The farthest touch point of distance fixing point is as relative touch point, and then calculates between the relative touch point in adjacent two moment The direction of motion and motion amplitude, and as after touch track terminate；

S16, the direction of motion obtained between multiple touch points in adjacent two moment are as touch track.

The control method of 3D hologram interaction systems based on track identification the most according to claim 1, it is characterised in that Described step S11, including:

The capacitance variations of S111, in real time detection touch screen, it is thus achieved that the real-time capacitance variations value of each passage of touch screen, will simultaneously It is set to zero, respectively according to X passage and the capacitance variations value of Y passage of the touch screen obtained less than the capacitance variations value of change threshold Set up changing value sequence；

S112, calculate the variation tendency sequence of X passage and Y passage respectively according to below equation:

In above formula, j=1,2,3 ... j_max, and

Wherein, i and j is natural number, j_maxRepresenting X passage sum or the Y total number of channels of touch screen, C [j] represents changing value sequence The jth element of row, CC [j] represents the jth element of variation tendency sequence；

S113, combine below equation and calculate X passage and the sequence of differences of Y passage respectively:

CCC [j]=CC [j+1]-CC [j]

Wherein, CCC [j] represents the jth element of sequence of differences, works as j=j_maxTime, make CC [j+1]=0；

S114, true according to the sequence number of element that element value in the sequence of differences of X passage obtained and the sequence of differences of Y passage is-2 Determine the position of touch point.

The control method of 3D hologram interaction systems based on track identification the most according to claim 1, it is characterised in that The position coordinates of the multiple touch points obtained the most in the same time according to two or more described in described step S14, it may be judged whether have Fixing point, itself particularly as follows:

The position coordinates of multiple touch points two or more obtained the most in the same time carries out comparison one by one respectively, if when difference Abscissa difference and the vertical coordinate difference of carving two touch points obtained are respectively less than predetermined threshold value, then judge this two touch points For fixing point, and select the position coordinates position coordinates as fixing point of any of which touch point.

The control method of 3D hologram interaction systems based on track identification the most according to claim 1, it is characterised in that Described step S15, including:

S151, calculate in multiple touch points of synchronization other touch point in addition to fixing point to the distance of fixing point, and Using farthest for a distance fixing point touch point as relative touch point；

S152, according to the position coordinates of the relative touch point in adjacent two moment and the position coordinates of fixing point, calculate two Individual relative touch point relative to the direction of rotation of fixing point and the anglec of rotation, i.e. obtain adjacent two moment relative touch point it Between the direction of motion and motion amplitude, and as after touch track terminate.

The control method of 3D hologram interaction systems based on track identification the most according to claim 1, it is characterised in that Described step S16, itself particularly as follows:

Judge whether do relatively close motion between multiple touch points in adjacent two moment or be relatively distant from motion, the most then Judge that touch track is effective, obtain its relative motion trend as touch track, otherwise terminate.

6. a kind of based on track identification the 3D hologram interaction systems of the control method in application claim 1, its feature exists In, including control rack, touch screen, for providing the laid out flat source of 3D hologram stereo-picture, for laid out flat source The image provided carry out reflecting and the holographic imaging plate of phantom imaging and for perform claim 1 based on track identification The controller of control method of 3D hologram interaction systems；

Described touch screen is combined by transparent capacitive touch control film and clear glass and is formed, described touch screen and laid out flat source all with control Device processed connects, and described controller is arranged in control rack；

The showroom being arranged over square shape of described control rack, described laid out flat source is horizontally disposed at showroom Bottom surface, described holographic imaging plate is arranged on the upside in laid out flat source and becomes 45 degree of angles, institute with the upper surface in laid out flat source State touch screen to be arranged on the front side of holographic imaging plate and the inner side of touch screen and become 45 degree of angles, described touch screen structure with holographic imaging plate Become the one side of showroom.