CN103324281A - Filtering method of non-contact interactive display system - Google Patents
Filtering method of non-contact interactive display system Download PDFInfo
- Publication number
- CN103324281A CN103324281A CN2013101365107A CN201310136510A CN103324281A CN 103324281 A CN103324281 A CN 103324281A CN 2013101365107 A CN2013101365107 A CN 2013101365107A CN 201310136510 A CN201310136510 A CN 201310136510A CN 103324281 A CN103324281 A CN 103324281A
- Authority
- CN
- China
- Prior art keywords
- filtering
- noncontact
- noise
- filtering method
- point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Image Analysis (AREA)
- Image Processing (AREA)
Abstract
The invention discloses a filtering method of a non-contact interactive display system. The filtering method is characterized by comprising the following steps: classifying noise generated by a laser scanner in the non-contact interactive display system into longitudinal vibration noise and transverse vibration noise; then filtering the longitudinal vibration noise and the transverse vibration noise respectively. Through combination of transverse filtering and longitudinal filtering, the filtering method greatly reduces influence on human-machine interaction caused by a noise source generated by operational vibration of the motor of a laser sensor, realizes real-time interaction between customers and advertisement contents, enhances product impression and popularity, has excellent advertising effect and entertainment effect, and meanwhile reduces bacterium infection caused by contact owing to non-contact communication so as to be more humanized.
Description
Technical field
The invention belongs to multimedia, human-computer interaction field, be specifically related to a kind of filtering method of noncontact interactive exhibition system.
Background technology
Multimedia technology is to use computer interactive formula complex art and digital communication technology to handle medium text, image, figure, video and sound, makes multiple information set up logic and connects, and is integrated into a personal-machine interaction systems.Interaction multimedia then has stronger real-time interactive, is the interactive communication of integrated " video, voice, literal, data ", has changed existing communication way greatly, be widely used in all kinds of exhibition rooms, as: museum, science and technology center, enterprise's exhibition room etc.The interaction multimedia display systems aspect experience mode and innovative design big quantum jump traditional broadcasting media mode, its fast development allows multimedia mode of propagation gradually from art up technicalization and art up mutual fusion, the mode that sets off mutually moved towards.The interaction multimedia display systems has changed conventional bulk proved recipe formula, the receiver no longer only be the passive information of accepting multimedia propagation, but allow the client have directization, selectivity and recreational more by a kind of active interaction experience, can predict in the near future, the innovation mode of propagation of noncontact interactive exhibition system will be more and more rich and varied.Existing noncontact interactive exhibition system has influence on the accuracy of human-computer interaction because there are various noise in scanner, and interactive experience feels bad.
Summary of the invention
The present invention seeks to: provide a kind of and can break through interference noise to the influence of multimedia system and realize the filtering method of the noncontact interactive exhibition system of man-machine contactless interaction naturally.
Technical scheme of the present invention is: a kind of filtering method of noncontact interactive exhibition system, it is characterized in that, the noise that laser scanner in the noncontact interactive exhibition system produces is classified, be divided into longitudinal judder noise and transverse judder noise, respectively described longitudinal judder noise and transverse judder noise carried out filtering again.Find that after deliberation the noise source that the noncontact interactive exhibition system mainly exists has a variety of: stablize because scanner is installed inadequately, or hang on floor, or draw perpendicular to wall, may make the concussion aggravation of scanner motor internal to cause noise.In all noises, what have the greatest impact is divided into two classes: the first kind, and for each bundle infrared signal, because the vibrations of motor, even make that can there be millimetre-sized subtle change in its length of surveying, is referred to as longitudinal judder herein when measuring the object of fixed range; Second class, all need to proofread again start angle removal skew though motor whenever turns around, the data of every circle the inside institute scanning survey still have minor deviations, are embodied on the concrete measurement target, can there be shake in the rim value of the object of surveying exactly, is referred to as transverse judder herein.Therefore the noise source that needs only this two class carries out filtering separately, just can obtain good effect.The filtering that the transverse judder noise is carried out can be average value filtering, cluster filtering etc.; Can be that it is transformed into frequency domain to the longitudinal judder noise filtering, the High frequency filter of high-frequency signal elimination, cluster filtering etc.
Among the present invention, to the concrete steps of longitudinal judder noise filtering be:
Step 1: get array and the array in preceding n cycle of current period scanning, the n value is between 3 ~ 6;
Step 2: judge whether current point is in the operational zone of setting, if be in the operational zone that sets, judge the coordinate range of this point of former cycles again, if not in the operational zone, then it is compensated;
Step 3: at last it is carried out filtering and handle.
Further, described concrete steps to the transverse judder noise filtering are: elimination enters the distance value of operational zone at first, at first removes the point that top n enters, and all the other some weightings are averaging, get the N+1 point then and carry out filtering as first point of weighted calculation, (N gets: 2,3 or 4).
Can also also carry out deletion to two points that enter at last, can obtain better effect.
Further, further comprising the steps of: as to analyze identifying the continuous effective distance value, it is asked weighted mean value, calculate coordinate points to be sent, namely be used for the coordinate of the hand of operation.
Further, n is 3.
Further, N is 3.
Advantage of the present invention is:
Contactless interactive multimedia system, by the horizontal filtering method that combines with vertical filtering, reduced greatly because laser sensor motor operation shake produces noise source to the influence of human-computer interaction, allow client and promotional content real-time interactive, deepened product impression and popularity, had good demonstration effect and amusement effect, simultaneously contactless interchange, reduced because contact produces bacterial infection hommization more.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described:
Fig. 1 is noncontact interactive exhibition system hardware block diagram.
Fig. 2 is noncontact interactive exhibition system software interface design drawing.
Fig. 3 is the coordinate points of weighted calculation operator.
Embodiment
Embodiment: in this interactive exhibition system, sensor adopts the laser sensor of 100M ethernet communication port, have hypervelocity transmission data, gather 25 secondary data p.s., per 0.36 ° has 1 measurement data in each two field picture, can obtain and handle measurement data in real time, and can more handle or control task.The composition of native system as shown in Figure 1.The data that this system adopts laser sensor to gather target information, come processes sensor to collect by computing machine and serial monitoring circuit, thus realize that the noncontact multiple spot controls.Wherein, this interactive exhibition system chief component is as follows:
Data acquisition subsystem: mainly be to gather target image in real time by laser sensor, this image is represented the degree of depth of distance or spatial positional information.
Data process subsystem: mainly formed by the serial ports duplicate circuit.By monitoring that serial ports obtains the information that laser sensor collects, and according to the agreement of laser sensor, resolve these information extraction active datas, it is carried out analyzing and processing.
Assistant subsystem: formed by power supply, power control circuit, fixed equipment.Wherein, power supply is that power control circuit can be realized opening, close, restart system, and the measurement range of selective system to system's power supply.Fixed equipment is used for fixing laser sensor.
Software adopts the Microsoft Visual studio C# exploitation of Microsoft, function software has user interface intuitively, and its main functional modules comprises: filtering processing and coordinate analysis, network settings, the master data of the delimitation of raw data filtering analysis, effective perform region, the identification of available point, available point are preserved, are transmitted by the coordinate between related protocol and the terminal software.The laser beam that laser sensor sends can cover its interior all objects of whole working range, and frame data that measure are exactly the range information of all objects that are scanned in this workspace.By the data of order read sensor consecutive frame, just can realize monitoring and control to the surrounding environment target.The design of interaction systems software interface as shown in Figure 2, can be divided into following four modules: serial communication modular.Realize the serial communication task, with the data transmission of scanner scanning to PC.Receive the echo module.Be responsible for the data that the demonstration serial ports receives.The graphical data display module.The graphical data that measure that show.The large screen display module.Be responsible for showing interactive picture and image.
Because the scanner scanning measurement data relies on its motor internal, so the vibrations that motor brought when moving become its inevitable noise source, the interference that brings can be divided into two classes.The first kind, for each bundle infrared signal, because the vibrations of motor, even make that can there be millimetre-sized subtle change in its length of surveying, is referred to as longitudinal judder herein when measuring the object of fixed range; Second class, all need to proofread again start angle removal skew though motor whenever turns around, the data of every circle the inside institute scanning survey still have minor deviations, are embodied on the concrete measurement target, can there be shake in the rim value of the object of surveying exactly, is referred to as transverse judder herein.Therefore carry out vertical filtering respectively separately and obtain good effect with horizontal filtering meeting.
Vertically filtering: at first kind shake, this product carries out filtering to it in the numerical analysis of software handles.Get array and the array in preceding 3 cycles of current period scanning, judge whether current point is in the operational zone of setting earlier, if be in the operational zone that sets, judge the coordinate range of this point of former cycles again, if not in the operational zone, then it is compensated.Also can get 4 cycles or 5 cycles, but can be influential slightly on the time, reaction velocity is slack-off.Specific as follows:
Only have one inside, (x y) is as the criterion with current point;
Have two outside, two inside, with closing on the value compensation;
X, x1 outside, two are inside, with closing on value compensation;
X, x2 outside, two are inside, with closing on value compensation;
X, x3 outside, two are inside, with closing on value compensation;
X2, x3, closes on the compensate for residual value inside;
X1, x3, closes on the compensate for residual value inside;
X1, x2, closes on the compensate for residual value inside;
Have one outside, three inside, with closing on the value compensation;
There is one outside, repays current some x, y with closing on value benefit 1;
There is one outside, repays x1, y1 with closing on value benefit 1;
There is one outside, repays x2, y2 with closing on value benefit 1;
There is one outside, repays x3, y3 with closing on value benefit 1;
Need not alternative compensating all inside.
At last it is carried out filtering, correlation formula is as follows:
x=μx+μ1x1+μ2x2+μ3x3;
y=μy+μ1y1+μ2y2+μ3y3;
In the expression formula on equal sign the right, x is the x axial coordinate that current period and distance value that this angle is surveyed are converted into rectangular coordinate, and y is the y axial coordinate that current period distance value that this angle is surveyed is converted into rectangular coordinate.The calculated value of three these points of cycle before x1, x2, x3, y1, y2, y3 are respectively.The x on the equal sign left side, y are this calculated value of current period, i.e. updating value.μ, μ 1, μ 2, μ 3 are coefficient.The span of μ, μ 1, μ 2, μ 3 is greater than 0, smaller or equal to 1/2, and μ 〉=μ 1 〉=μ 2 〉=μ 3, μ, μ 1 summation are greater than 1/2.μ in the present embodiment=1/3, μ 1=1/4, μ 2=1/4, μ 3=1/6.
At the shake of second class, this product carries out filtering to it in the numerical analysis of software handles, and may further comprise the steps:
1. because during the distance value of inspected object, the error at edge is bigger, so elimination enters the distance value (being that velamen laser beam that object blocks in the operational zone) of operational zone at first.At first remove preceding two points that enter, and all the other some weightings are averaging, get the 3rd first point as weighted calculation then and carry out filtering.Present embodiment can also also be carried out deletion to two points that enter at last, can obtain better effect.
Analyze identifying the continuous effective distance value, it is asked weighted mean value, calculate coordinate points to be sent, namely be used for the coordinate of the hand of operation, as shown in Figure 3, the valid function district of its Smalt frame for setting.Select normal available point (thirdly, and having a few later on), show that in display interface invalid distance value PenOut represents that with green PenIn is coverage value (redness), calculate the x of available point, the summation of y is added up effectively counting.When operator leaves sweep limit, leave sweep limit for the first time, the computation of mean values coordinate, after this group data scanning finishes, parameter reconfiguration ' ThirdPoint ', ' InNumber '.
The present invention can break through interference noise that motor operation produces to the influence of multimedia show system and realize man-machine natural non-contact type interaction.The present invention utilizes the advanced computers vision technique, design proposal in conjunction with interactive experience technology, circulation ways such as figure, image, literal, sound have been integrated, from a series of not exclusively and comprise the measurement data of noise and analyze and filtering, adopt the horizontal filtering method that combines with vertical filtering, allow multiple information propagate the non-contact type man-machine interactive system that element set becomes completeization, transmit the new sensation of a kind of brand-new interaction and new experience with a kind of visualize, mode three-dimensional, many people real-time interactive.
Claims (7)
1. the filtering method of a noncontact interactive exhibition system is characterized in that, in the noncontact interactive exhibition system
The noise that produces of laser scanner classify, be divided into longitudinal judder noise and transverse judder noise, respectively described longitudinal judder noise and transverse judder noise are carried out filtering again.
2. the filtering method of noncontact interactive exhibition system according to claim 1 is characterized in that, described concrete steps to the longitudinal judder noise filtering are:
Step 1: array and the array in preceding n cycle of getting current period scanning;
Step 2: judge whether current point is in the operational zone of setting, if be in the operational zone that sets, judge the coordinate range of this point of former cycles again, if not in the operational zone, then it is compensated;
Step 3: at last it is carried out filtering and handle.
3. the filtering method of noncontact interactive exhibition system according to claim 1, it is characterized in that, described concrete steps to the transverse judder noise filtering are: elimination enters the distance value of operational zone at first, at first remove the point that top n enters, and all the other some weightings are averaging, get the N+1 point then and carry out filtering as first point of weighted calculation.
4. the filtering method of noncontact interactive exhibition system according to claim 3 is characterized in that, after removing the point that top n enters, removes N the point that enters in back again, and all the other some weightings are averaging.
5. according to the filtering method of claim 3 or 4 described noncontact interactive exhibition systems, it is characterized in that, further comprising the steps of: as to analyze identifying the continuous effective distance value, it is asked weighted mean value, calculate coordinate points to be sent, namely be used for the coordinate of the hand of operation.
6. the filtering method of noncontact interactive exhibition system according to claim 2 is characterized in that, n is 3.
7. according to the filtering method of claim 3 or 4 described noncontact interactive exhibition systems, it is characterized in that N is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310136510.7A CN103324281B (en) | 2013-04-18 | 2013-04-18 | Filtering method of non-contact interactive display system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310136510.7A CN103324281B (en) | 2013-04-18 | 2013-04-18 | Filtering method of non-contact interactive display system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103324281A true CN103324281A (en) | 2013-09-25 |
| CN103324281B CN103324281B (en) | 2017-02-08 |
Family
ID=49193080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310136510.7A Active CN103324281B (en) | 2013-04-18 | 2013-04-18 | Filtering method of non-contact interactive display system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103324281B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142730A (en) * | 2014-07-04 | 2014-11-12 | 华南理工大学 | Method for mapping gesture tracking results to mouse events |
| CN105445719A (en) * | 2015-11-13 | 2016-03-30 | 中国人民解放军空军装备研究院雷达与电子对抗研究所 | 3D laser scanner data filtering method |
| CN109540464A (en) * | 2018-09-11 | 2019-03-29 | 重庆惠科金渝光电科技有限公司 | A kind of measurement method and measuring device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776952A (en) * | 2010-01-29 | 2010-07-14 | 联动天下科技（大连）有限公司 | Novel interactive projection system |
| JP2010283623A (en) * | 2009-06-04 | 2010-12-16 | Panasonic Corp | Image processor, image processing method, program, recording medium and integrated circuit |
| CN102339463A (en) * | 2010-07-22 | 2012-02-01 | 首都师范大学 | System and method for calibrating linear array camera based on laser scanner |
| CN202828099U (en) * | 2012-08-20 | 2013-03-27 | 浙江大学 | Transitional connection device between airborne laser scanner and aircraft |
-
2013
- 2013-04-18 CN CN201310136510.7A patent/CN103324281B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010283623A (en) * | 2009-06-04 | 2010-12-16 | Panasonic Corp | Image processor, image processing method, program, recording medium and integrated circuit |
| CN101776952A (en) * | 2010-01-29 | 2010-07-14 | 联动天下科技（大连）有限公司 | Novel interactive projection system |
| CN102339463A (en) * | 2010-07-22 | 2012-02-01 | 首都师范大学 | System and method for calibrating linear array camera based on laser scanner |
| CN202828099U (en) * | 2012-08-20 | 2013-03-27 | 浙江大学 | Transitional connection device between airborne laser scanner and aircraft |
Non-Patent Citations (1)
| Title |
|---|
| 李建新: "大屏幕多媒体互动展示系统实现技术与设计", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142730A (en) * | 2014-07-04 | 2014-11-12 | 华南理工大学 | Method for mapping gesture tracking results to mouse events |
| CN104142730B (en) * | 2014-07-04 | 2017-06-06 | 华南理工大学 | A kind of method that gesture tracking result is mapped to mouse event |
| CN105445719A (en) * | 2015-11-13 | 2016-03-30 | 中国人民解放军空军装备研究院雷达与电子对抗研究所 | 3D laser scanner data filtering method |
| CN109540464A (en) * | 2018-09-11 | 2019-03-29 | 重庆惠科金渝光电科技有限公司 | A kind of measurement method and measuring device |
| WO2020051990A1 (en) * | 2018-09-11 | 2020-03-19 | 重庆惠科金渝光电科技有限公司 | Measurement method and measurement device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103324281B (en) | 2017-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6424510B2 (en) | Moving object detection method and system | |
| Purushwalkam et al. | Audio-visual floorplan reconstruction | |
| CN109084746A (en) | Monocular mode for the autonomous platform guidance system with aiding sensors | |
| Chi et al. | A methodology for object identification and tracking in construction based on spatial modeling and image matching techniques | |
| CN105744218A (en) | Garbage cleaning method and apparatus | |
| CN109116374A (en) | Determine the method, apparatus, equipment and storage medium of obstacle distance | |
| CN106802655A (en) | Indoor map generation method and device | |
| JP2021530821A (en) | Methods, equipment and computer programs for performing 3D wireless model construction | |
| CN108198044A (en) | Methods of exhibiting, device, medium and the electronic equipment of merchandise news | |
| CA2970343C (en) | Apparatus and method for centrally managing human interface sensors and actuators in interactive machines | |
| WO2011091868A1 (en) | System and method for 2d occupancy sensing | |
| CN108196258B (en) | Method and device for determining position of external device, virtual reality device and system | |
| CN103914129A (en) | Man-machine interactive system and method | |
| CN103324281A (en) | Filtering method of non-contact interactive display system | |
| Guan et al. | DeepMix: mobility-aware, lightweight, and hybrid 3D object detection for headsets | |
| CN111968247A (en) | Method and device for constructing three-dimensional house space, electronic equipment and storage medium | |
| Mayer et al. | A magic lens for revealing device interactions in smart environments | |
| CN104267380A (en) | Associated display method for full-pulse signal multidimensional parameters | |
| JP6770464B2 (en) | Manufacturing control method and manufacturing control system | |
| JP7224592B2 (en) | Information processing device, information processing method, and program | |
| CN104731659A (en) | Apparatus and method for mapping position information of virtual resources | |
| CN104182052A (en) | Fast interaction method for multimedia devices within effective spatial range | |
| CN105739690A (en) | Double-client control method, device and system | |
| CN206236172U (en) | A kind of scanning 2D becomes the imaging system of 3D | |
| CN105988916B (en) | Visualization method, device and system are carried out to the touch locus of points of touch panel device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191017 Address after: 215000 village committee of shangmingdian village, Zhangpu Town, Kunshan City, Suzhou City, Jiangsu Province Patentee after: Suzhou chenernuo Photoelectric Technology Co., Ltd. Address before: 215000, room 2, building 10, No. 102, lane house, Suzhou, Jiangsu Patentee before: Ihly Show System Technology (Suzhou) Co., Ltd. |