CN102929435B - Body thoughts and feelings control operation system and method - Google Patents
Body thoughts and feelings control operation system and method Download PDFInfo
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- CN102929435B CN102929435B CN201110238225.7A CN201110238225A CN102929435B CN 102929435 B CN102929435 B CN 102929435B CN 201110238225 A CN201110238225 A CN 201110238225A CN 102929435 B CN102929435 B CN 102929435B
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Abstract
A kind of body thoughts and feelings control operation system, in order to differentiate whether an image display curtain is touched, with performing an action of producing that a correspondence touches.Body thoughts and feelings control operation system comprises a specified wavelength light projecting apparatus, an image capture unit, a selectivity filter element, a data processing equipment.Specified wavelength light projecting apparatus, in order to project a specified wavelength light towards image display curtain, makes specified wavelength light be reflected into specific wavelength image by image display curtain.Image capture unit is by selectivity filter element and towards image display curtain pick-up image, and selectivity filter element can make image capture unit only obtain specific wavelength image.Data processing equipment drops on the shade image of image display curtain in order to be separated a prospect image and in specific wavelength image, when the shadow spots of character pair point in the unique point and shade image of prospect image is overlapping, what data processing equipment determined that image display curtain produces by touching that correspondence touches performs an action.
Description
Technical field
What present invention is directed to image display curtain touches interactive operation, particularly about a kind of body thoughts and feelings control operation system and a kind of body sense touch operation method.
Background technology
When carrying out bulletin with computer apparatus and projection arrangement, the normal problems faced of user is, between light pen and image display curtain, Bing, without interactive relationship, therefore cannot produce operational order by the movement of light pen in projected picture to computer apparatus.
In order to solve one of common method of foregoing problems, being be projected on a large-scale Trackpad in image display curtain, directly judging whether image display curtain is touched with Trackpad.But large-scale Trackpad cost is high, and it is arranged so that projection arrangement is unfavorable for that carrying uses between different places.
In other prior art, also have after obtaining sampling picture by image capture unit, analytical sampling picture and judge that whether user touches the technological means of image display curtain with hand or light pen.
Such as Republic of China's new patent M396446 system first defines a detection area, when the image of this detection area is interdicted, namely represent user and tap this region, but when detection area is interdicted, user Bing must not tap this region.China's Mainland patent CN 03102675.3 utilizes multiple image capture unit to obtain hand or light pen position, and Bing judges whether hand or light pen touch image display curtain; China's Mainland CN200510009897.5, US Patent No. 6,760,009 are also utilize multiple image capture unit to obtain hand or light pen position, but Bing cannot judge whether hand or light pen touch image display curtain.Aforementioned prior art all must use multiple image capture unit, and those image capture units all must pass through correction program, also must carry out correction program before touch control operation system is used, and is thus unfavorable for that carrying uses between different places.
Summary of the invention
In view of the above problems, the present invention proposes a kind of body thoughts and feelings control operation system and a kind of body sense touch operation method, is to differentiate whether image display curtain is touched with relatively simple technological means.
The present invention proposes a kind of body thoughts and feelings control operation system, in order to differentiate whether an image display curtain is touched, to produce performing an action of should touching for a pair.Body thoughts and feelings control operation system comprises a specified wavelength light projecting apparatus, an image capture unit, a selectivity filter element, a data processing equipment.
Specified wavelength light projecting apparatus, in order to project a specified wavelength light towards image display curtain, makes specified wavelength light be reflected into a specific wavelength image by image display curtain.Keep a spacing distance between image capture unit and specified wavelength light projecting apparatus and arrange.Image capture unit continues pick-up image by selectivity filter element towards image display curtain, and selectivity filter element makes image capture unit only obtain specific wavelength image; Wherein specific wavelength image comprises multiple pixel, and a coordinate in each pixel definable specific wavelength image.Data processing equipment, drops on the shade image of image display curtain in order to be separated a prospect image and in specific wavelength image, define a unique point in this prospect image simultaneously, and Bing defines the shadow spots that corresponds to unique point in shade image.
More set a range gate threshold value in data processing equipment, the relative distance between unique point coordinate and shadow spots coordinate is less than range gate threshold value, and what data processing equipment determined that image display curtain produces by touching that correspondence touches performs an action.
The present invention more proposes a kind of body sense touch operation method, in order to differentiate whether an image display curtain is touched, to produce performing an action of should touching for a pair, comprises the following step:
Project a specified wavelength light towards image display curtain, specified wavelength light is reflected by this image display curtain;
Continue acquisition towards image display curtain and reflect by this specified wavelength light the specific wavelength image formed;
On specific wavelength image, a coordinate system is set up with the picture element matrix of specific wavelength image;
The shade image that a prospect image and drops on image display curtain is separated in specific wavelength image;
In prospect image, define a unique point, Bing defines the shadow spots that corresponds to unique point in shade image;
Set a range gate threshold value, the relative distance between the coordinate of comparison unique point and the coordinate of shadow spots, judges whether relative distance is less than range gate threshold value; And
When relative distance is less than range gate threshold value, determine that the unique point of prospect image has touched image display curtain in three dimensions, and produce corresponding touch perform an action.
Effect of the present invention is, image display curtain does not need arrange sensor, but utilizes the mode of image analysing computer, and detecting human body touching for image display curtain, simplifies the technological means required for touch control operation.In addition, when the present invention judges coordinate, be using the picture element matrix of specific wavelength image itself as coordinate system, Bing does not need to carry out correction program to outside coordinate system, significantly simplifies the preposition program of operating body thoughts and feelings control operation system yet.
Accompanying drawing explanation
Fig. 1 and Fig. 2 is the schematic diagram of the body thoughts and feelings control operation system of first embodiment of the invention.
Fig. 3 and Fig. 4 is in first embodiment of the invention, the schematic diagram of specific wavelength image.
Fig. 5 and Fig. 6 is in first embodiment of the invention, the change case of body thoughts and feelings control operation system.
Fig. 7 is the schematic diagram of the body thoughts and feelings control operation system of second embodiment of the invention.
Fig. 8 is the schematic diagram of the body thoughts and feelings control operation system of third embodiment of the invention.
Fig. 9, Figure 10 and Figure 11 are the process flow diagram of the body sense touch operation method of optical projection system of the present invention.
Main element symbol description
100 body thoughts and feelings control operation systems
110 specified wavelength light projecting apparatus
120 image capture units
130 selectivity filter elements
140 data processing equipments
150 projection arrangements
160 display device
170 frameworks
F image display curtain
I specified wavelength light
G spacing distance
S specific wavelength image
O prospect image
B shade image
C unique point
C " shadow spots
Embodiment
Refer to shown in " Fig. 1 ", a kind of body thoughts and feelings control operation system 100 disclosed by first embodiment of the invention, in order to differentiate whether an image display curtain F is touched, to produce performing an action of should touching for a pair.Body thoughts and feelings control operation system 100 comprises specified wavelength light projecting apparatus 110, image capture unit 120, selectivity filter element 130, data processing equipment 140.
Refer to shown in " Fig. 1 ", the image frame that specific embodiment comprises liquid crystal projection apparatus 150, DLP projection arrangement 150 projects of image display curtain F, or be the display surface of the non-projecting display 160 such as liquid crystal display, plasma display panel, and with large scale person for the best.
Refer to shown in " Fig. 1 " and " Fig. 2 ", specified wavelength light projecting apparatus 110 is in order to project a specified wavelength light I towards this image display curtain F, makes this specified wavelength light I be reflected into specific wavelength image S by this image display curtain F.Specified wavelength light I is the wavelength light that image display curtain F can not send, to avoid the display action interfering bodies thoughts and feelings control operation system 100 of image display curtain F itself; Preferably, specified wavelength light I is invisible light, thus avoids specified wavelength light I to disturb user to watch image display curtain F; The specific embodiment of specified wavelength light I is infrared ray, its middle infrared (Mid-IR) wavelength light that to be image display curtain F can not send under normal display operation, and is invisible light Bing and harmless to human eye.
Refer to shown in " Fig. 1 " and " Fig. 2 ", keep a spacing distance G between image capture unit 120 and specified wavelength light projecting apparatus 110, Bing is towards image display curtain F pick-up image.Selectivity filter element 130 is between image capture unit 120 and specified wavelength light projecting apparatus 110, and selectivity filter element 130 can make image capture unit 120 only obtain specific wavelength image.Implement in aspect in concrete, image capture unit 120 can be complementary type metal-oxide-semiconductor (MOS) (COMPLEMENTARY METAL-OXIDE SEMICONDUCTOR, CMOS) or photosensitive coupling element (CHARGE COUPLED DEVICE, CCD).
Refer to shown in " Fig. 1 " and " Fig. 2 ", image capture unit 120 is electrically connected at data processing equipment 140, this data processing equipment 140 is made to receive specific wavelength image S acquired by image capture unit 120, this specific wavelength image S comprises multiple pixel, and a coordinate in this specific wavelength image of each pixel definable S.
Consult shown in " Fig. 3 " and " Fig. 4 ", data processing equipment 140 is after obtaining specific wavelength image S, the shade image B that a prospect image O and drops on this image display curtain F is separated in this specific wavelength image S, in this prospect image O, define a unique point C, Bing defines the shadow spots C that corresponds to this unique point C in this shade image B simultaneously ".
The mode system of separation prospect image O judges it by the reflection strength of specified wavelength light I.Generally speaking, the reflection strength of the specified wavelength light I that image display curtain F reflects, can drop in an average reflection intensity interval, and prospect image O system is by a barrier, such as one stand in image display curtain F before user formed, the reflection strength of the specified wavelength light I that it reflects, then can drop on outside this average reflection intensity interval, and be greater than a reflection strength lower limit; Thus, this data processing equipment 140 just can isolate this prospect image O by specific wavelength image S.Shade image B is then because be projected to the specified wavelength light I of image display curtain F by this barrier obstruction, and the dark portion region be formed on image display curtain F, the reflection strength of the specified wavelength light I of its reflection, can drop on outside this average reflection intensity interval, and be less than this reflection strength lower limit; Thus, data processing equipment 140 just can isolate shade image B by specific wavelength image S.Aforesaid reflection strength lower limit is less than the minimum value of average reflection intensity interval.
Consult shown in " Fig. 3 " and " Fig. 4 ", the unique point C defined in this prospect image O, can be the hand of user.Find out the mode of this unique point C, lie in preservative feature model in data processing equipment 140, this characteristic model of comparison and this prospect image O, can find out the pixel group meeting characteristic model in prospect image O, using as unique point C.Similarly, take hand as the application examples of unique point C, the shadow spots C corresponding to this unique point C " be the shade of hand, therefore also can this characteristic model of comparison and this shade image B; and in this shade image B, find out the pixel group meeting characteristic model, using as shadow spots C ".Aforementionedly find out unique point C and shadow spots C " mode be only an example, in image processing field, have and usually know that the knowledgeable is when can according to unique point C and shadow spots C " explanation, complete feature points C and shadow spots C " technological means.Aforesaid unique point C Bing must not be the hand of user, also can be pen, the body of rod etc.
When unique point C is constantly mobile in specific wavelength image S, shadow spots C " also can change location thereupon.As previously mentioned, this specific wavelength image S comprises multiple pixel, and a coordinate in this specific wavelength image of each pixel definable S.Therefore data processing equipment 140 can by analytical characteristic point C and shadow spots C " be positioned at the position of specific wavelength image S, and produce unique point Building C mark and shadow spots C respectively " coordinate.
A range gate threshold value is more set, as unique point Building C mark and shadow spots C in data processing equipment 140 " relative distance between coordinate is less than this range gate threshold value, then by unique point Building C mark and shadow spots C " coordinate is considered as overlap.
As shown in figure 4, as unique point Building C mark and shadow spots C " coordinate relative distance is less than this range gate threshold value; even equal zero and overlapping time; the user representing generation prospect image O contacts this image display curtain F with hand; now; data processing equipment 140 just determines that the unique point C of this prospect image O has touched image display curtain F in three dimensions, and produces performing an action of should touching.
Such as, in time using transparency to carry out bulletin, user can adopt and touch, as the operation of " changing one page ", data processing equipment 140 is performed " changing one page ", and changes the transparency of image display curtain F display; Or user can adopt and touches continuously, as the operation of " returning page up ", data processing equipment 140 is performed " returning page up ".
As shown in " Fig. 5 ", the specific embodiment of data processing equipment 140 can be a host computer, and be loaded into Bing and perform an operating system, Bing according to the operation of user, and is loaded into Bing and performs an application.Data processing equipment 140 produces a display.As previously mentioned, the image frame that projects for a projection arrangement 150 of the specific embodiment of image display curtain F.Projection arrangement 150 receives the display of this data processing equipment 140, thus carries out projecting and producing the image frame on this image display curtain F.
As shown in " Fig. 6 ", another specific embodiment of image display curtain F is the display surface of a display device 160.Display device 160 receives the display of this data processing equipment 140, thus produces image frame with display surface and become this image display curtain F.
Consult " Fig. 5 " and " Fig. 6 ", as aforementioned applications example, data processing equipment 140 performs " changing one page ", or during the performing an action of " return to page up ", just can change its display exported, thus make projection arrangement 150 or display device 160 change the content of image display curtain F.
Refer to shown in " Fig. 7 ", a kind of body thoughts and feelings control operation system 100 disclosed by second embodiment of the invention, in order to differentiate whether an image display curtain F is touched, to produce performing an action of should touching for a pair.Body thoughts and feelings control operation system 100 comprises specified wavelength light projecting apparatus 110, image capture unit 120, selectivity filter element 130, data processing equipment 140.
As shown in " Fig. 7 ", between image capture unit 120 and this specified wavelength light projecting apparatus 110, keep a spacing distance G.Therefore the body thoughts and feelings control operation system 100 of the second embodiment comprises a framework 170 further, this image capture unit 120 is arranged on this framework 170 with this specified wavelength light projecting apparatus 110, and maintains this spacing distance G.
Refer to shown in " Fig. 8 ", a kind of body thoughts and feelings control operation system 100 disclosed by third embodiment of the invention, comprises specified wavelength light projecting apparatus 110, selectivity filter element 130, image capture unit 120, data processing equipment 140, projection arrangement 150 and a framework 170.Image capture unit 120, specified wavelength light projecting apparatus 110 and projection arrangement 150, be arranged on this framework 170, and maintain this spacing distance G.
As shown in " Fig. 9 ", be a kind of body sense touch operation method proposed by the invention, in order to differentiate whether an image display curtain F is touched, to produce performing an action of should touching for a pair.
The embodiment of the coordinate positioning method of the instruction luminous point proposed according to the present invention is provide a source code, is loaded into Bing and performs, and perform the following step for data processing equipment 140; Described source code is stored in a computer-readable storage medium, or by a computer program product transmission.
With a specified wavelength light projecting apparatus 110, project a specified wavelength light I towards this image display curtain F, make this specified wavelength light I be reflected into a specific wavelength image S, as shown in step Step 110 by this image display curtain F.
This specified wavelength light I is projeced into this image display curtain F constantly, and mode frequently of dodging also can be adopted to be projeced into this image display curtain F intermittently.As previously mentioned, the special wavelength light that specified wavelength light I preferably can not send for image display curtain F, and be invisible light, such as infrared ray.
Then, data processing equipment 140 with image capture unit 120 towards this image display curtain F continue acquisition reflect the specific wavelength image S formed, as shown in step Step 120 by specified wavelength light I.
The mode of the specific wavelength image S formed is reflected in acquisition by specified wavelength light I, lie between image capture unit 120 and image display curtain F and arrange a selectivity filter element 130; Wherein, selectivity filter element 130 can make image capture unit 120 only obtain specific wavelength image S.
Data processing equipment 140 receives this specific wavelength image S, and Bing, with the picture element matrix of this specific wavelength image S, sets up a coordinate system, as shown in step Step 130 on this specific wavelength image S.
Then, data processing equipment 140 is separated the shade image B that a prospect image O and drops on this image display curtain F in this specific wavelength image S, as shown in step Step 140.
As shown in " Figure 10 ", in step Step 140, the mode being separated prospect image O and this shade image B comprises the following step.
Data processing equipment 140 sets an average reflection intensity interval and a reflection strength lower limit, as shown in step Step141; Wherein this reflection strength lower limit is less than the minimum value of this average reflection intensity interval.
This data processing equipment 140 is by specific wavelength image S, and the reflection strength isolating specified wavelength light I to drop on outside this average reflection intensity interval and is greater than the pixel group of this reflection strength lower limit, is defined as this prospect image O, as shown in step Step 142.
Simultaneously, this data processing equipment 140 is by specific wavelength image S, the reflection strength isolating specified wavelength light I to drop on outside this average reflection intensity interval and is less than the pixel group of this reflection strength lower limit, is defined as this shade image B, as shown in step Step 143.
Consult shown in " Fig. 9 " again, data processing equipment 140 defines a unique point C in this prospect image O, and Bing defines the shadow spots C that corresponds to this unique point C in this shade image B ", as shown in step Step 150.
As shown in " Figure 11 ", in step Step 150, feature points C and shadow spots C " mode comprise the following step.
Data processing equipment 140 is loaded into characteristic model, as shown in step Step 151.This characteristic model system set up according to the gabarit of specific subject matter, the hand of such as user, pen, the body of rod.And aforementioned gabarit comprises and observes person acquired by specific subject matter by different visual angles.
This characteristic model of data processing equipment 140 comparison and this prospect image O, find out the pixel group meeting characteristic model in prospect image O, and defining this pixel group is unique point C, as shown in step Step 152.
This characteristic model of data processing equipment 140 comparison and this shade image B, find out the pixel group meeting characteristic model in shade image B, and defining this pixel group is shadow spots C ", as shown in step Step 153.
Consult shown in " Fig. 9 " again, data processing equipment 140 sets a range gate threshold value, as shown in step Step 160.
Data processing equipment 140 continues comparison unique point Building C mark and shadow spots C " relative distance between coordinate, judge whether this relative distance is less than this range gate threshold value, as shown in step Step 171 and step Step 172.
When whether this relative distance is less than this range gate threshold value, then this data processing equipment 140 determines that the unique point C of this prospect image O has touched image display curtain F in three dimensions, and produces performing an action of should touching, as shown in step Step 180.
The body proposed in the present invention is felt in control operation system 100 and body sense touch operation method, and image display curtain F does not need to arrange sensor.The present invention, by the mode of image analysing computer, can detect human body touching for image display curtain F, in aforesaid image analysing computer, also in conjunction with other analytical procedures, can further obtain information such as touching coordinate, simplifies the technological means required for touch control operation.In addition, when the present invention judges coordinate, be using the picture element matrix of specific wavelength image S itself as coordinate system, Bing does not need to carry out correction program to outside coordinate system, significantly simplifies the preposition program of operating body thoughts and feelings control operation system 100 yet.
Claims (10)
1. a body thoughts and feelings control operation system, in order to differentiate whether an image display curtain is touched, to produce performing an action of should touching for a pair, is characterized in that, this body thoughts and feelings control operation system comprises:
One specified wavelength light projecting apparatus, in order to project a specified wavelength light towards this image display curtain, makes this specified wavelength light be reflected into a specific wavelength image by this image display curtain;
One image capture unit, and keep a spacing distance between this specified wavelength light projecting apparatus, Bing is towards this image display curtain pick-up image;
One selectivity filter element, only obtains this specific wavelength image in order to make this image capture unit; Wherein this specific wavelength image comprises multiple pixel, and a coordinate in this specific wavelength image of each pixel definable; And
One data processing equipment, in order to be separated the shade image that a prospect image and drops on this image display curtain in this specific wavelength image, defines a unique point simultaneously in this prospect image, and Bing defines the shadow spots that corresponds to this unique point in this shade image;
Wherein, a range gate threshold value is more set in this data processing equipment, relative distance between this unique point coordinate and this shadow spots coordinate is less than this range gate threshold value, and this data processing equipment determines that this image display curtain is produced by touching performing an action of should touching.
2. body thoughts and feelings control operation system as claimed in claim 1, it is characterized in that, this specified wavelength light is infrared ray.
3. body thoughts and feelings control operation system as claimed in claim 1, it is characterized in that, this data processing equipment establishes an average reflection intensity interval and to be less than the reflection strength lower limit of the minimum value of average reflection intensity interval, this data processing equipment is by this specific wavelength image, the reflection strength isolating this specified wavelength light to drop on outside this average reflection intensity interval and is greater than the pixel group of this reflection strength lower limit, be defined as this prospect image, and this data processing equipment is by this specific wavelength image, the reflection strength isolating this specified wavelength light to drop on outside this average reflection intensity interval and is less than the pixel group of this reflection strength lower limit, be defined as this shade image.
4. body thoughts and feelings control operation system as claimed in claim 1, it is characterized in that, preservative feature model in this data processing equipment, in order to this characteristic model of comparison and this prospect image, to find out the pixel group meeting this characteristic model in this prospect image, using as this unique point; And this this characteristic model of data processing equipment comparison and this shade image, and find out the pixel group meeting characteristic model in this shade image, using as shadow spots.
5. body thoughts and feelings control operation system as claimed in claim 1, it is characterized in that, more comprise a framework, this image capture unit and this specified wavelength light projecting apparatus are arranged on this framework, and maintain this spacing distance.
6. a body sense touch operation method, in order to differentiate whether an image display curtain is touched, to produce performing an action of should touching for a pair, is characterized in that, comprise:
Project a specified wavelength light towards this image display curtain, this specified wavelength light is reflected by this image display curtain;
Continue acquisition towards this image display curtain and reflect by this specified wavelength light the specific wavelength image formed;
On this specific wavelength image, a coordinate system is set up with the picture element matrix of this specific wavelength image;
The shade image that a prospect image and drops on this image display curtain is separated in this specific wavelength image;
In this prospect image, define a unique point, and in this shade image, define the shadow spots that corresponds to this unique point;
Set a range gate threshold value, the relative distance between the coordinate of this unique point of comparison and the coordinate of this shadow spots, judges whether this relative distance is less than this range gate threshold value; And
When this relative distance is less than this range gate threshold value, determine that the unique point of this prospect image has touched image display curtain in three dimensions, and produce performing an action of should touching.
7. body sense touch operation method as claimed in claim 6, it is characterized in that, this specified wavelength light is projeced into this image display curtain constantly.
8. body sense touch operation method as claimed in claim 6, is characterized in that, this specified wavelength gloss dodges mode frequently and is projeced into this image display curtain intermittently.
9. body sense touch operation method as claimed in claim 6, is characterized in that, the mode being separated prospect image and this shade image comprises the following step:
Set an average reflection intensity interval one reflection strength lower limit; Wherein this reflection strength lower limit is less than the minimum value of this average reflection intensity interval;
By in this specific wavelength image, the reflection strength isolating this specified wavelength light to drop on outside this average reflection intensity interval and is greater than the pixel group of this reflection strength lower limit, is defined as this prospect image; And
By in this specific wavelength image, the reflection strength isolating this specified wavelength light to drop on outside this average reflection intensity interval and is less than the pixel group of this reflection strength lower limit, is defined as this shade image.
10. body sense touch operation method as claimed in claim 6, it is characterized in that, this fixed unique point and the mode of shadow spots comprise the following step:
Be loaded into characteristic model;
This characteristic model of comparison and this prospect image, find out the pixel group meeting this characteristic model in this prospect image, defines this pixel group for this unique point; And
This characteristic model of comparison and this shade image, find out the pixel group meeting this characteristic model in this shade image, defines this pixel group for this shadow spots.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001222375A (en) * | 2000-02-08 | 2001-08-17 | Seiko Epson Corp | Indicated position detection system and method, presentation system and information storage medium |
| WO2008108465A1 (en) * | 2007-03-08 | 2008-09-12 | Lunascape Co., Ltd. | Projector system |
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| TW201128486A (en) * | 2010-02-01 | 2011-08-16 | Acer Inc | Optical touch control display apparatus and method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001222375A (en) * | 2000-02-08 | 2001-08-17 | Seiko Epson Corp | Indicated position detection system and method, presentation system and information storage medium |
| WO2008108465A1 (en) * | 2007-03-08 | 2008-09-12 | Lunascape Co., Ltd. | Projector system |
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