CN108664197A - The localization method and device of interaction point in interactive projection system - Google Patents
The localization method and device of interaction point in interactive projection system Download PDFInfo
- Publication number
- CN108664197A CN108664197A CN201711309655.7A CN201711309655A CN108664197A CN 108664197 A CN108664197 A CN 108664197A CN 201711309655 A CN201711309655 A CN 201711309655A CN 108664197 A CN108664197 A CN 108664197A
- Authority
- CN
- China
- Prior art keywords
- axis
- projection screen
- polar
- coordinate system
- range radar
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0425—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Projection Apparatus (AREA)
Abstract
The present invention provides a kind of localization method and device of interaction point in interactive projection system, and wherein method includes：It is divided by respectively with length of the projection screen in X-axis and Y-axis according to distance of the interaction point to projection screen coordinate system origin in X-axis and Y-axis, Scale Translate of the acquisition interaction point in projection screen；According to the interaction point in the product of the Scale Translate and projection screen resolution ratio of projection screen, coordinate of the acquisition interaction point in projection screen.The present invention by obtain interaction point projection screen Scale Translate, in conjunction with the resolution ratio of projection screen, interactive projection system is enabled to adapt to the projection screen of arbitrary size, convenient for users to according to actual scene and demand, freely adjust the installation site for swashing range radar so that interaction systems can be compatible with more scenes.
Description
Technical field
The present invention relates to human-computer interaction technique fields, more particularly, to the positioning side of interaction point in interactive projection system
Method and device.
Background technology
With the high speed development of computer science and technology, human-computer interaction technology is gradually shifted from centered on computer
To human-centred, the interactive mode of people and computer is still confined to mouse and keyboard, this single transmission mode at present
The further development of human-computer interaction is constrained within a very long time.And the appearance of human-computer interaction technology substantially improves this
Present situation, human-computer interaction bring stronger feeling of immersion and experience sense that it is made to have obtained quick hair due to its naturality and to user
Exhibition.This technology can be widely used for various metopes and ground interactive scene.
In interactive projection system, the actual coordinate for acquiring interaction point is key problem, if collected data are inaccurate
The interactive experience of user will really be largely effected on.In the prior art, traditional radar angular resolution is low, distance resolution is low, fast
Degree resolution ratio is low, measurement range is small, anti-interference ability is weak, volume and weight is big, uses inconvenience.In addition, the peace of radar
Holding position is fixed so that it can not which compatible various scenes, constrain the universal and development of human-computer interaction technology significantly.
Invention content
The present invention is provided in a kind of interactive projection system for overcoming the above problem or solving the above problems at least partly
The localization method and device of interaction point.
According to an aspect of the present invention, a kind of localization method of interaction point in interactive projection system is provided, including：
S1, according to distance of the interaction point to projection screen coordinate system origin in X-axis and Y-axis respectively with projection screen in X
Length on axis and Y-axis is divided by, Scale Translate of the acquisition interaction point in projection screen；
S2, according to the interaction point in the product of the Scale Translate and projection screen resolution ratio of projection screen, interacted
The rectangular co-ordinate of point on the projection screen.
Preferably, further include before the step S1：
S0, according to range radar and relative position and interaction point of the projection screen coordinate system origin in X-axis and Y-axis
Polar coordinates obtain distance of the interaction point to projection screen coordinate system origin in X-axis and Y-axis；
Wherein, polar pole is range radar, and polar diameter is air line distance of the interaction point to range radar；The pole is sat
Target polar angle by by Y-axis be rotated clockwise to the range radar to interaction dot at line segment projection on the projection screen
Angle obtain.
Preferably, the step S0 is specifically included：
Polar polar diameter is multiplied with the sine value of polar angle, obtains projected length of the polar diameter in X-axis；
Determine first position parameter, wherein when the range radar is located at the X-axis negative direction of projection screen coordinate system,
The first position parameter is 1, and when the range radar is located at projection screen coordinate system origin, the location parameter is 0,
When the range radar is located at the X-axis positive direction of projection screen, the first position parameter is -1；
When the product of sine value and the first position parameter of the polar angle is less than 0, know the range radar extremely
The absolute value of the sum of distance of the projection screen coordinate system origin in X-axis and projected length of the polar diameter in X-axis, as friendship
Mutually distance of the point to projection screen coordinate system origin in X-axis；
When the product of sine value and the first position parameter of the polar angle is not less than 0, know the range radar
To the absolute value of the difference of the projection screen coordinate system origin distance in X-axis and projected length of the polar diameter in X-axis, as
Distance of the interaction point to projection screen coordinate system origin in X-axis.
Preferably, the step S0 further includes：
Polar polar diameter is multiplied with the cosine value of polar angle, obtains projected length of the polar diameter in Y-axis；
Determine second position parameter, wherein when the range radar is located at the Y-axis negative direction of projection screen coordinate system,
The second position parameter is 1, and when the range radar is located at projection screen coordinate system origin, the location parameter is 0,
When the range radar is located at the Y-axis positive direction of projection screen, the first position parameter is -1；
When the product of cosine value and the second position parameter of the polar angle is less than 0, know the range radar extremely
The absolute value of the sum of distance of the projection screen coordinate system origin in Y-axis and projected length of the polar diameter in Y-axis, as friendship
Mutually distance of the point to projection screen coordinate system origin in Y-axis；
When the product of cosine value and the second position parameter of the polar angle is not less than 0, know the range radar
To the absolute value of the difference of the projection screen coordinate system origin distance in Y-axis and projected length of the polar diameter in Y-axis, as
Distance of the interaction point to projection screen coordinate system origin in Y-axis.
Preferably, when projection screen is metope, polar polar angle is to rotate clockwise axis to Y by vertical direction
The angle of axis with by Y-axis be rotated clockwise to the range radar to interact dot at line segment projection on the projection screen
The sum of angle；Wherein, the straight line where the Y-axis is located on the projection screen, both perpendicular to horizontal line.
According to another aspect of the present invention, a kind of positioning device of interaction point in interactive projection system is also provided, including：
Scale Translate module, for being distinguished according to distance of the interaction point to projection screen coordinate system origin in X-axis and Y-axis
With the quotient of length of the projection screen in X-axis and Y-axis, Scale Translate of the acquisition interaction point in projection screen；
Projection coordinate's module is used for Scale Translate and projection screen resolution ratio in projection screen according to the interaction point
Product, coordinate of the acquisition interaction point in projection screen.
Preferably, the positioning device further includes：
Radar fix module, for according to distance of the range radar to projection screen coordinate system origin in X-axis and Y-axis with
And the polar coordinates of interaction point, obtain distance of the interaction point to projection screen coordinate system origin in X-axis and Y-axis；
Wherein, polar polar diameter is air line distance of the interaction point to radar；Polar polar angle with by Y-axis
Be rotated clockwise to the range radar to interaction dot at line segment projection on the projection screen angle it is related.
Preferably, the radar fix module specifically includes：
First projected length unit obtains the pole for polar polar diameter to be multiplied with the sine value of polar angle
Projected length of the diameter in X-axis；
First position parameter module, for determining first position parameter, wherein when the range radar is located at projection screen
When the X-axis negative direction of coordinate system, the first position parameter is 1, when the range radar is located at projection screen coordinate system origin
When, the location parameter is 0, when the range radar is located at the X-axis positive direction of projection screen, the first position parameter
It is -1；
First spacing module is known for being less than 0 when the sine value of the polar angle and the product of the first position parameter
By distance of the range radar to projection screen coordinate system origin in X-axis and projected length of the polar diameter in X-axis it
The absolute value of sum, the distance as interaction point to projection screen coordinate system origin in X-axis；Sine value when the polar angle and institute
The product for stating first position parameter is not less than 0, know the range radar to projection screen coordinate system origin in X-axis away from
Absolute value of the difference from the projected length with the polar diameter in X-axis, as interaction point to projection screen coordinate system origin in X-axis
On distance.
Preferably, the radar fix module further includes：
Second projected length unit obtains the pole for polar polar diameter to be multiplied with the cosine value of polar angle
Projected length of the diameter in Y-axis；
Second position parameter module, for determining second position parameter, wherein when the range radar is located at projection screen
When the Y-axis negative direction of coordinate system, the second position parameter is 1, when the range radar is located at projection screen coordinate system origin
When, the location parameter is 0, when the range radar is located at the Y-axis positive direction of projection screen, the first position parameter
It is -1；
Second distance module is known for being less than 0 when the cosine value of the polar angle and the product of the second position parameter
By distance of the range radar to projection screen coordinate system origin in Y-axis and projected length of the polar diameter in Y-axis it
The absolute value of sum, the distance as interaction point to projection screen coordinate system origin in Y-axis；Cosine value when the polar angle and institute
The product for stating second position parameter is not less than 0, know the range radar to projection screen coordinate system origin in Y-axis away from
Absolute value of the difference from the projected length with the polar diameter in Y-axis, as interaction point to projection screen coordinate system origin in Y-axis
On distance.
According to another aspect of the present invention, a kind of interactive projection system is also provided, including：
Projecting apparatus, for that will show image projection to projection screen, so that organism contacts on the projection screen
Display picture；
Range radar is arranged on the projection screen, and the range radar is for detecting the city object and the throwing
The polar coordinates of the interaction point of shadow screen；
Positioning device as described above is connect with the projecting apparatus and range radar, and the positioning device is for obtaining institute
State the rectangular co-ordinate of interaction point on the projection screen.
The localization method and device of interaction point in interactive projection system proposed by the present invention is being projected by obtaining interaction point
The Scale Translate of screen enables to interactive projection system to adapt to the projection screen of arbitrary size in conjunction with the resolution ratio of projection screen
Curtain, convenient for users to according to actual scene and demand, freely adjusting the installation site of sharp range radar so that interaction systems can be with
Compatible more scenes.
Description of the drawings
Fig. 1 is the flow diagram according to the localization method of the embodiment of the present invention；
Fig. 2 is the functional block diagram according to the positioning device of the embodiment of the present invention.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is described in further detail.Implement below
Example is not limited to the scope of the present invention for illustrating the present invention.
In order to overcome the drawbacks described above of the prior art, an embodiment of the present invention provides interaction points in a kind of interactive projection system
Localization method.The each embodiment of the present invention mainly illustrates to interaction point in interactive projection system in the position of projection screen coordinate system
Set the method positioned.Interactive interactive system involved by the embodiment of the present invention is suitable for ground or metope.
In one embodiment, interactive projection system includes range radar and projecting apparatus, and projecting apparatus will be for that will show picture
Face is projected to floor/wall (as display screen), and human body can contact the picture (place of contact for projecting to floor/wall
As interaction point), and subsequently generating a series of interactive results.
Range radar is arranged on floor/wall, and radar wave, real-time tracking human body and wall are sent to surrounding by 360 °
The actual coordinate of the interaction point on face/ground, it is clear that the actual coordinate is a polar coordinates.
Range radar obtains actual coordinate by laser triangulation technology, and range radar emits infrared laser signal, should
Laser signal generated after being irradiated to target object it is reflective will be received by radar, pass through and determine and emit signal and receive signal
The triangle shape parameter of time interval and 3 points of launch point, receiving point and object reflective spot drivings, you can obtain illuminated object
Polar coordinates between body and radar.
In conjunction with Fig. 1, be the embodiment of the present invention a kind of interactive projection system in interaction point localization method flow signal
Figure, This embodiment describes a kind of determining interaction points based on the present invention in the seat calibration method of projection screen coordinate system, the party
Method includes：
S101, existed respectively with projection screen according to interaction point to distance of the projection screen coordinate system origin in X-axis and Y-axis
The quotient of length in X-axis and Y-axis, Scale Translate of the acquisition interaction point in projection screen.
It should be noted that in interactive projection system, the coordinate of interaction point is to be directly obtained by range radar, but survey
The coordinate of interaction point away from radar acquisition is marked under the coordinate system of range radar, in order to enable in interactive projection system
The installation site of range radar is no longer harsh.Projection screen be one it is two-dimensional, have X-direction length and Y direction length
Plane, the present embodiment calculates interaction point in the Scale Translate of projection screen first, and Scale Translate is clearly a two-dimensional coordinate,
The X axis coordinate of the two-dimensional coordinate be interaction point to distance of the projection screen coordinate system origin in X-axis with projection screen in X-axis
Length quotient, Y axis coordinate be interaction point to distance of the projection screen coordinate system origin in Y-axis with projection screen in Y-axis
Length quotient, it follows that Scale Translate is a relative value.
S102, according to interaction point the Scale Translate and projection screen resolution ratio of projection screen product, obtain interaction point
In the coordinate of projection screen.
Specifically, the Scale Translate by interaction point in projection screen is indicated with (a, b), and wherein a indicates Scale Translate in X-axis
On coordinate value, b indicates coordinate value of the Scale Translate in Y-axis, if resolution ratio of the projection screen in X-axis and Y-axis is respectively m
And n, then interaction point is (a*m, b*n) in the coordinate of projection screen.By by the resolution ratio of Scale Translate and projection screen
It is combined, you can obtain interaction point accurate coordinate on the projection screen.
It should be noted that the embodiment of the present invention by obtain interaction point projection screen Scale Translate, in conjunction with projection
The resolution ratio of screen enables to interactive projection system to adapt to the projection screen of arbitrary size, convenient for users to according to actual field
Scape and demand freely adjust the installation site for swashing range radar so that interaction systems can be compatible with more scenes.
On the basis of the above embodiments, further include before step S1：
S0, according to range radar and projection screen coordinate system origin in the pole of the relative position and interaction point of X-axis and Y-axis
Coordinate obtains distance of the interaction point to projection screen coordinate system origin in X-axis and Y-axis；
Wherein, polar pole is range radar, and polar diameter is air line distance of the interaction point to range radar；It is polar
Polar angle by by Y-axis be rotated clockwise to range radar to interaction dot at the angle of line segment projection on the projection screen obtain
.
It should be noted that in order to obtain position of the range radar with respect to projection screen coordinate system origin, the present invention is implemented
Example obtains distance of the range radar to projection screen coordinate system origin in X-axis and Y-axis respectively, and the polar coordinates of interaction point embody
The air line distance of interaction point distance ranging radar and the deflection angle of interaction point can be obtained by combining above-mentioned parameter
Orientation of the interaction point with respect to projection screen coordinate system origin is obtained, which is existed by interaction point with respect to projection screen coordinate system origin
Distance in X-axis and Y-axis embodies.
On the basis of the various embodiments described above, polar polar angle is to rotate clockwise axis to the angle of Y-axis by vertical direction
Spend with by Y-axis be rotated clockwise to range radar to interact dot at line segment the sum of the angle of projection on the projection screen.
The calculation formula of polar polar angle is：A=B+C；Wherein, A indicates that polar polar angle, B are indicated by vertical side
To rotating clockwise angle of the axis to Y-axis, C indicate by Y-axis be rotated clockwise to range radar to interaction dot at line segment exist
The angle of projection on projection screen.
It should be noted that the present invention is not intended to limit perspective plane and horizontal plane or vertical relation of plane, the perspective plane is only needed
It is a plane, rather than a curved surface or rough face, pole is sat when the embodiment of the present invention is using perspective plane as metope
Target polar angle is illustrated.Due to being by manually installing when actual disposition range radar, this process is inevitably
Generating error so that the Y direction of range radar is not that vertically upward, can influence the accuracy of collected data, in order to
Solve the problems, such as this, the embodiment of the present invention introduces the concept of error angle, for making up the manually installed error brought, error angle
The actual Y-axis positive direction (Y i.e. above of range radar is moved clockwise to for positive direction vertically upward (vertical direction i.e. above)
Axis) angle that is turned over, experiments verify that, the embodiment of the present invention introduces after error angle the registration that can improve interaction point
Degree, illustrates that this method is effective to interactive projection system.
On the basis of the various embodiments described above, further include before step S0：
The origin of projection screen coordinate system, the direction of X-axis and Y-axis are selected on the projection screen.
In a specific embodiment, the origin of projection screen coordinate system is the vertex of view field, for example, left end point,
X-axis is horizontal line, and the direction of Y-axis is the straight line on projection screen perpendicular to X-direction, when perspective plane is vertical metope, Y-axis
It is directed toward the earth's core, when perspective plane is ground, then Y-axis is also horizontal line, but direction is perpendicular to X-direction.
On the basis of the various embodiments described above, step S0 is specifically included：
Polar polar diameter is multiplied with the sine value of polar angle and cosine value respectively, projection of the polar diameter in X-axis is obtained and grows
The projected length of degree and polar diameter in Y-axis.
Specifically, l=| ρ sin θs |, d=| ρ cos θ |.Wherein, ρ indicates that polar polar diameter, θ indicate polar
Polar angle, l indicate that projected length of the polar diameter in X-axis, d indicate projected length of the polar diameter in Y-axis.
The calculating of distance of the interaction point to projection screen coordinate system origin in X-axis, Y-axis and polar angle sine value, cosine value
And range radar is related with the relative position of projection screen coordinate system origin, such as：
Determine first position parameter, wherein when range radar is located at the X-axis negative direction of projection screen coordinate system, first
Location parameter is 1, and when range radar is located at projection screen coordinate system origin, location parameter is 0, is thrown when range radar is located at
When the X-axis positive direction of shadow screen, first position parameter is -1；
When the product of sine value and the first position parameter of polar angle is less than 0, know range radar to projection screen coordinate
It is the absolute value of the sum of distance of the origin in X-axis and projected length of the polar diameter in X-axis, is sat as interaction point to projection screen
Distance of the mark system origin in X-axis；
When the product of sine value and the first position parameter of polar angle is not less than 0, knows and sit range radar to projection screen
The absolute value of the difference of mark system the origin distance in X-axis and projected length of the polar diameter in X-axis, as interaction point to projection screen
Distance of the coordinate origin in X-axis.
Determine second position parameter, wherein when the range radar is located at the Y-axis negative direction of projection screen coordinate system,
The second position parameter is 1, and when the range radar is located at projection screen coordinate system origin, the location parameter is 0,
When the range radar is located at the Y-axis positive direction of projection screen, the first position parameter is -1.
When the product of cosine value and the second position parameter of polar angle is less than 0, know range radar to projection screen coordinate
It is the absolute value of the sum of distance of the origin in Y-axis and projected length of the polar diameter in Y-axis, is sat as interaction point to projection screen
Distance of the mark system origin in Y-axis；
When the product of cosine value and the second position parameter of polar angle is not less than 0, knows and sit range radar to projection screen
The absolute value of the difference of mark system the origin distance in Y-axis and projected length of the polar diameter in Y-axis, as interaction point to projection screen
Distance of the coordinate origin in Y-axis.
According to another aspect of the present invention, a kind of positioning device of interaction point in interactive projection system, such as Fig. 2 are also provided
Shown, which is used in foregoing embodiments to interaction point in interactive projection system in the position of projection screen coordinate system
It sets and is positioned.Therefore, the description and definition in the Method of Commodity Recommendation in each embodiment of preamble can be used for of the invention real
Apply the understanding of each execution module in example.
As shown, positioning device includes：
Scale Translate module 201, for the distance according to interaction point to projection screen coordinate system origin in X-axis and Y-axis
The quotient of length with projection screen in X-axis and Y-axis respectively, Scale Translate of the acquisition interaction point in projection screen.
It should be noted that Scale Translate of the calculating interaction point of Scale Translate module 201 in projection screen, Scale Translate are aobvious
It is so a two-dimensional coordinate, the X axis coordinate of the two-dimensional coordinate is distance of the interaction point to projection screen coordinate system origin in X-axis
With the quotient of length of the projection screen in X-axis, Y axis coordinate is distance of the interaction point to projection screen coordinate system origin in Y-axis
With the quotient of length of the projection screen in Y-axis, it follows that Scale Translate is a relative value.
Projection coordinate's module 202 is used for Scale Translate and projection screen resolution ratio in projection screen according to interaction point
Product, rectangular co-ordinate of the acquisition interaction point in projection screen.
Specifically, Scale Translate of the projection coordinate's module 202 by interaction point in projection screen is indicated with (a, b), wherein a tables
Show coordinate value of the Scale Translate in X-axis, b indicates coordinate value of the Scale Translate in Y-axis, if projection screen is in X-axis and Y-axis
Resolution ratio be respectively m and n, then interaction point is (a*m, b*n) in the coordinate of projection screen.By by Scale Translate with throw
The resolution ratio of shadow screen is combined, you can obtains interaction point accurate coordinate on the projection screen.
It should be noted that the positioning device of the embodiment of the present invention is sat by obtaining interaction point in the ratio of projection screen
Mark enables to interactive projection system to adapt to the projection screen of arbitrary size in conjunction with the resolution ratio of projection screen, convenient for users to
According to actual scene and demand, the installation site for swashing range radar is freely adjusted so that interaction systems can be compatible with more fields
Scape.
On the basis of the above embodiments, positioning device further includes：
Radar fix module, for according to range radar to the relative position and interaction point of projection screen coordinate system origin
Polar coordinates, obtain distance of the interaction point to projection screen coordinate system origin in X-axis and Y-axis；
Wherein, polar polar diameter is air line distance of the interaction point to radar；Polar polar angle passes through clockwise by Y-axis
Rotate to range radar to interaction dot at the angle of line segment projection on the projection screen obtain.
It should be noted that in order to obtain position of the range radar with respect to projection screen coordinate system origin, the present invention is implemented
The radar fix module of example obtains distance of the range radar to projection screen coordinate system origin in X-axis and Y-axis respectively, and interacts
The polar coordinates of point embody the air line distance of interaction point distance ranging radar and the deflection angle of interaction point, by by above-mentioned ginseng
Amount combines, and can obtain orientation of the interaction point with respect to projection screen coordinate system origin, the orientation is by interaction point with respect to projection screen
Distance of the curtain coordinate origin in X-axis and Y-axis embodies.
On the basis of the various embodiments described above, polar polar angle is to rotate clockwise axis to the angle of Y-axis by vertical direction
Spend with by Y-axis be rotated clockwise to range radar to interact dot at line segment the sum of the angle of projection on the projection screen.
The calculation formula of polar polar angle is：A=B+C；Wherein, A indicates that polar polar angle, B are indicated by vertical side
To rotating clockwise angle of the axis to Y-axis, C indicate by Y-axis be rotated clockwise to range radar to interaction dot at line segment exist
The angle of projection on projection screen.
It should be noted that the positioning device of the embodiment of the present invention is not intended to limit the pass on perspective plane and horizontal plane or vertical plane
System, it is a plane only to need the perspective plane, rather than a curved surface or rough face, and the embodiment of the present invention is to project
Polar polar angle is illustrated when face is metope.Due to be when actual disposition range radar by manually installing, this
Process unavoidably will produce error so that the Y direction of range radar is not that vertically upward, can influence collected data
Accuracy, in order to solve this problem, the embodiment of the present invention introduces the concept of error angle, for making up manually installed bring
Error, error angle moves clockwise to the angle that the actual Y-axis positive direction of range radar is turned over for positive direction vertically upward, passes through
Experimental verification, the embodiment of the present invention can improve the setting accuracy of interaction point after introducing error angle, illustrate this method to interaction
Optical projection system is effective.
On the basis of the above embodiments, radar fix module specifically includes：
First projected length unit obtains polar diameter in X-axis for polar polar diameter to be multiplied with the sine value of polar angle
Projected length；
First position parameter module, for determining first position parameter, wherein when the range radar is located at projection screen
When the X-axis negative direction of coordinate system, the first position parameter is 1, when the range radar is located at projection screen coordinate system origin
When, the location parameter is 0, when the range radar is located at the X-axis positive direction of projection screen, the first position parameter
It is -1；
First spacing module is known for being less than 0 when the sine value of polar angle and the product of first position parameter by ranging thunder
The absolute value for reaching the sum of distance of the projection screen coordinate system origin in X-axis and projected length of the polar diameter in X-axis, as friendship
Mutually distance of the point to projection screen coordinate system origin in X-axis；When the sine value and the product of first position parameter of polar angle be not small
In 0, know distance by range radar to projection screen coordinate system origin in X-axis and projected length of the polar diameter in X-axis it
Absolute value of the difference, the distance as interaction point to projection screen coordinate system origin in X-axis.
On the basis of the above embodiments, radar fix module further includes：
Second projected length unit obtains polar diameter in Y-axis for polar polar diameter to be multiplied with the cosine value of polar angle
Projected length；
Second position parameter module, for determining second position parameter, wherein when the range radar is located at projection screen
When the Y-axis negative direction of coordinate system, the second position parameter is 1, when the range radar is located at projection screen coordinate system origin
When, the location parameter is 0, when the range radar is located at the Y-axis positive direction of projection screen, the first position parameter
It is -1；
Second distance module is known for being less than 0 when the cosine value of polar angle and the product of second position parameter by ranging thunder
The absolute value for reaching the sum of distance of the projection screen coordinate system origin in Y-axis and projected length of the polar diameter in Y-axis, as friendship
Mutually distance of the point to projection screen coordinate system origin in Y-axis；When the cosine value and the product of second position parameter of polar angle be not small
In 0, know distance by range radar to projection screen coordinate system origin in Y-axis and projected length of the polar diameter in Y-axis it
Absolute value of the difference, the distance as interaction point to projection screen coordinate system origin in Y-axis.
According to another aspect of the present invention, a kind of interactive projection system is also provided, including：
Projecting apparatus, for that will show image projection to projection screen, so that organism contacts on the projection screen
Display picture；
Range radar is arranged on the projection screen, and the range radar is for detecting the city object and the throwing
The polar coordinates of the interaction point of shadow screen；
Positioning device as described in the various embodiments described above is connect with the projecting apparatus and range radar, the positioning device
For obtaining the rectangular co-ordinate of the interaction point on the projection screen.
The apparatus embodiments described above are merely exemplary, wherein can be as the unit that separating component illustrates
Or may not be and be physically separated, the component shown as unit may or may not be physical unit, i.e.,
A place can be located at, or may be distributed over multiple network units.It can select according to the actual needs therein
Some or all of module achieves the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creative labor
In the case of dynamic, you can to understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It is realized by the mode of software plus required general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be expressed in the form of software products in other words, should
Computer software product can store in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
The method of certain parts of example or embodiment.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. the localization method of interaction point in a kind of interactive projection system, which is characterized in that including：
S1, according to distance of the interaction point to projection screen coordinate system origin in X-axis and Y-axis respectively with projection screen in X-axis and Y
Length on axis is divided by, Scale Translate of the acquisition interaction point in projection screen；
S2, according to the interaction point the Scale Translate and projection screen resolution ratio of projection screen product, obtain interaction point exist
Rectangular co-ordinate on projection screen.
2. localization method as described in claim 1, which is characterized in that further include before the step S1：
S0, it is sat in the pole of the relative position and interaction point of X-axis and Y-axis according to range radar and projection screen coordinate system origin
Mark obtains distance of the interaction point to projection screen coordinate system origin in X-axis and Y-axis；
Wherein, polar pole is range radar, and polar diameter is air line distance of the interaction point to range radar；It is described polar
Polar angle by by Y-axis be rotated clockwise to the range radar to interaction dot at line segment projection on the projection screen angle
Degree obtains.
3. localization method as claimed in claim 2, which is characterized in that the step S0 is specifically included：
Polar polar diameter is multiplied with the sine value of polar angle, obtains projected length of the polar diameter in X-axis；
Determine first position parameter, wherein described when the range radar is located at the X-axis negative direction of projection screen coordinate system
First position parameter is 1, and when the range radar is located at projection screen coordinate system origin, the location parameter is 0, works as institute
When stating range radar and being located at the X-axis positive direction of projection screen, the first position parameter is -1；
When the product of sine value and the first position parameter of the polar angle is less than 0, know the range radar to projecting
The absolute value of the sum of distance of the screen coordinate system origin in X-axis and projected length of the polar diameter in X-axis, as interaction point
To distance of the projection screen coordinate system origin in X-axis；
When the product of sine value and the first position parameter of the polar angle is not less than 0, know the range radar to throwing
The absolute value of the difference of shadow screen coordinate system the origin distance in X-axis and projected length of the polar diameter in X-axis, as interaction
Distance of the point to projection screen coordinate system origin in X-axis.
4. localization method as claimed in claim 2, which is characterized in that the step S0 further includes：
Polar polar diameter is multiplied with the cosine value of polar angle, obtains projected length of the polar diameter in Y-axis；
Determine second position parameter, wherein described when the range radar is located at the Y-axis negative direction of projection screen coordinate system
Second position parameter is 1, and when the range radar is located at projection screen coordinate system origin, the location parameter is 0, works as institute
When stating range radar and being located at the Y-axis positive direction of projection screen, the first position parameter is -1；
When the product of cosine value and the second position parameter of the polar angle is less than 0, know the range radar to projecting
The absolute value of the sum of distance of the screen coordinate system origin in Y-axis and projected length of the polar diameter in Y-axis, as interaction point
To distance of the projection screen coordinate system origin in Y-axis；
When the product of cosine value and the second position parameter of the polar angle is not less than 0, know the range radar to throwing
The absolute value of the difference of shadow screen coordinate system the origin distance in Y-axis and projected length of the polar diameter in Y-axis, as interaction
Distance of the point to projection screen coordinate system origin in Y-axis.
5. localization method as claimed in claim 2, which is characterized in that when projection screen is metope, polar pole
Angle be by vertical direction rotate clockwise axis to Y-axis angle with the range radar is rotated clockwise to interaction point by Y-axis
The sum of the angle of projection of the line segment of formation on the projection screen；
Wherein, the straight line where the Y-axis is located on the projection screen, both perpendicular to horizontal line.
6. the positioning device of interaction point in a kind of interactive projection system, which is characterized in that including：
Scale Translate module, for according to distance of the interaction point to projection screen coordinate system origin in X-axis and Y-axis respectively with throwing
The quotient of length of the shadow screen in X-axis and Y-axis, Scale Translate of the acquisition interaction point in projection screen；
Projection coordinate's module, for according to the interaction point in the Scale Translate of projection screen and multiplying for projection screen resolution ratio
Product, coordinate of the acquisition interaction point in projection screen.
7. positioning device as claimed in claim 6, which is characterized in that further include：
Radar fix module, for according to range radar to the relative position of projection screen coordinate system origin and the pole of interaction point
Coordinate obtains distance of the interaction point to projection screen coordinate system origin in X-axis and Y-axis；
Wherein, polar polar diameter is air line distance of the interaction point to radar；Polar polar angle passes through suitable by Y-axis
Hour hands rotate to the range radar to interaction dot at the angle of line segment projection on the projection screen obtain.
8. positioning device as claimed in claim 6, which is characterized in that the radar fix module specifically includes：
First projected length unit obtains the polar diameter in X for polar polar diameter to be multiplied with the sine value of polar angle
Projected length on axis；
First position parameter module, for determining first position parameter, wherein when the range radar is located at projection screen coordinate
When the X-axis negative direction of system, the first position parameter is 1, when the range radar is located at projection screen coordinate system origin, institute
It is 0 to state location parameter, and when the range radar is located at the X-axis positive direction of projection screen, the first position parameter is -1；
First spacing module is known for being less than 0 when the sine value of the polar angle and the product of the first position parameter by institute
Range radar is stated to distance of the projection screen coordinate system origin in X-axis and the sum of projected length of the polar diameter in X-axis
Absolute value, the distance as interaction point to projection screen coordinate system origin in X-axis；When the sine value and described the of the polar angle
The product of one location parameter is not less than 0, know distance by the range radar to projection screen coordinate system origin in X-axis with
The absolute value of the difference of projected length of the polar diameter in X-axis, as interaction point to projection screen coordinate system origin in X-axis
Distance.
9. positioning device as claimed in claim 6, which is characterized in that the radar fix module further includes：
Second projected length unit obtains the polar diameter in Y for polar polar diameter to be multiplied with the cosine value of polar angle
Projected length on axis；
Second position parameter module, for determining second position parameter, wherein when the range radar is located at projection screen coordinate
When the Y-axis negative direction of system, the second position parameter is 1, when the range radar is located at projection screen coordinate system origin, institute
It is 0 to state location parameter, and when the range radar is located at the Y-axis positive direction of projection screen, the first position parameter is -1；
Second distance module is known for being less than 0 when the cosine value of the polar angle and the product of the second position parameter by institute
Range radar is stated to distance of the projection screen coordinate system origin in Y-axis and the sum of projected length of the polar diameter in Y-axis
Absolute value, the distance as interaction point to projection screen coordinate system origin in Y-axis；When the cosine value and described the of the polar angle
The product of two location parameters is not less than 0, know distance by the range radar to projection screen coordinate system origin in Y-axis with
The absolute value of the difference of projected length of the polar diameter in Y-axis, as interaction point to projection screen coordinate system origin in Y-axis
Distance.
10. a kind of interactive projection system, which is characterized in that including：
Projecting apparatus, for that will show image projection to projection screen, so that organism contacts showing on the projection screen
Show picture；
Range radar is arranged on the projection screen, and the range radar is for detecting the city object and the projection screen
The polar coordinates of the interaction point of curtain；
Positioning device as described in claim 6-9 any one, connect with the projecting apparatus and range radar, the positioning dress
It sets for obtaining the rectangular co-ordinate of the interaction point on the projection screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711309655.7A CN108664197A (en) | 2017-12-11 | 2017-12-11 | The localization method and device of interaction point in interactive projection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711309655.7A CN108664197A (en) | 2017-12-11 | 2017-12-11 | The localization method and device of interaction point in interactive projection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108664197A true CN108664197A (en) | 2018-10-16 |
Family
ID=63785106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711309655.7A Pending CN108664197A (en) | 2017-12-11 | 2017-12-11 | The localization method and device of interaction point in interactive projection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108664197A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109873995A (en) * | 2019-02-20 | 2019-06-11 | 北京当红齐天国际文化发展集团有限公司 | A kind of floor screen projection system and method interacted |
| CN109885228A (en) * | 2019-01-14 | 2019-06-14 | 珠海金山网络游戏科技有限公司 | A method of contact action is carried out to display device based on radar |
| CN110502129A (en) * | 2019-08-29 | 2019-11-26 | 王国梁 | Intersection control routine |
| CN110569788A (en) * | 2019-09-06 | 2019-12-13 | 南京象皮尼科技有限公司 | system and method for measuring and calculating intelligent training indexes of infant body |
| CN115243022A (en) * | 2022-08-22 | 2022-10-25 | 周口师范学院 | Laser projection interactive display system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103425409A (en) * | 2013-07-30 | 2013-12-04 | 华为终端有限公司 | Control method and device for projection display |
| CN103838437A (en) * | 2014-03-14 | 2014-06-04 | 重庆大学 | Touch positioning control method based on projection image |
| CN107452303A (en) * | 2017-09-07 | 2017-12-08 | 厦门奇翼科技有限公司 | A kind of 5D theme parks |
-
2017
- 2017-12-11 CN CN201711309655.7A patent/CN108664197A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103425409A (en) * | 2013-07-30 | 2013-12-04 | 华为终端有限公司 | Control method and device for projection display |
| CN103838437A (en) * | 2014-03-14 | 2014-06-04 | 重庆大学 | Touch positioning control method based on projection image |
| CN107452303A (en) * | 2017-09-07 | 2017-12-08 | 厦门奇翼科技有限公司 | A kind of 5D theme parks |
Non-Patent Citations (1)
| Title |
|---|
| 李志: "基于图像识别的大屏幕人机交互系统研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109885228A (en) * | 2019-01-14 | 2019-06-14 | 珠海金山网络游戏科技有限公司 | A method of contact action is carried out to display device based on radar |
| CN109873995A (en) * | 2019-02-20 | 2019-06-11 | 北京当红齐天国际文化发展集团有限公司 | A kind of floor screen projection system and method interacted |
| CN110502129A (en) * | 2019-08-29 | 2019-11-26 | 王国梁 | Intersection control routine |
| CN110569788A (en) * | 2019-09-06 | 2019-12-13 | 南京象皮尼科技有限公司 | system and method for measuring and calculating intelligent training indexes of infant body |
| CN115243022A (en) * | 2022-08-22 | 2022-10-25 | 周口师范学院 | Laser projection interactive display system |
| CN115243022B (en) * | 2022-08-22 | 2024-03-05 | 周口师范学院 | Laser projection interactive display system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108664197A (en) | The localization method and device of interaction point in interactive projection system | |
| US9041796B2 (en) | Method, tool, and device for determining the coordinates of points on a surface by means of an accelerometer and a camera | |
| CN111174799A (en) | Map construction method and device, computer readable medium and terminal equipment | |
| JP2020533721A5 (en) | ||
| CN105716582A (en) | Method and device for measuring field angle of vidicon and vidicon field angle measuring instrument | |
| CN108959173A (en) | A kind of calculation method and device of laser radar point cloud data | |
| KR20180102684A (en) | How to measure indoor distance | |
| Hakim et al. | Calculating point of origin of blood spatter using laser scanning technology | |
| CN109405829A (en) | Pedestrian's method for self-locating based on smart phone audio-video Multi-source Information Fusion | |
| CN105242252B (en) | Downward Trendline Spotlight SAR Imaging radar fix method based on images match | |
| CN108613625B (en) | Measuring method using augmented reality technology | |
| CN109100698B (en) | A kind of radar target spherical projection method for maritime formation | |
| CN104239678B (en) | A kind of method and apparatus for realizing interferometer direction finding positioning | |
| CN103995888A (en) | Path guide information expressing method and device based on live-action | |
| CN110672097A (en) | Indoor positioning and tracking method, device and system based on laser radar | |
| Azuma et al. | Performance analysis of an outdoor augmented reality tracking system that relies upon a few mobile beacons | |
| Nagymáté et al. | Motion capture system validation with surveying techniques | |
| KR20120058802A (en) | Apparatus and method for calibrating 3D Position in 3D position/orientation tracking system | |
| RU2309420C1 (en) | Time-difference method of finding coordinates of radio source and device for realization of the method | |
| CN209530065U (en) | A kind of coordinate location device based on image | |
| KR101404976B1 (en) | System for generating a walking route POI based on image using 3Ｄmatching | |
| Hagedorn et al. | Correction of location and orientation errors in electromagnetic motion tracking | |
| CN113900517B (en) | Route navigation method and device, electronic equipment and computer readable medium | |
| JP7220246B2 (en) | Position detection method, device, equipment and readable storage medium | |
| CN107861615A (en) | The tracking module of visitor's event trace is caught in numeral exhibition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181016 |
|
| RJ01 | Rejection of invention patent application after publication |