CN107396076A - A kind of portable translucent correction system, equipment and its control method - Google Patents
A kind of portable translucent correction system, equipment and its control method Download PDFInfo
- Publication number
- CN107396076A CN107396076A CN201710718386.3A CN201710718386A CN107396076A CN 107396076 A CN107396076 A CN 107396076A CN 201710718386 A CN201710718386 A CN 201710718386A CN 107396076 A CN107396076 A CN 107396076A
- Authority
- CN
- China
- Prior art keywords
- camera
- paper
- light source
- portable translucent
- target area
- 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
- 238000012937 correction Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000013461 design Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 description 15
- 241000239290 Araneae Species 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000011221 initial treatment Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
- H04N9/3185—Geometric adjustment, e.g. keystone or convergence
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/317—Convergence or focusing systems
Abstract
The invention discloses a kind of portable translucent to correct system, including：Light source, camera, MCU, video flowing output module；Wherein, the output end of the MCU is connected with the input of the video flowing output module, and the output end of the camera is connected with the input of the MCU, and the light source is connected with the camera.A kind of portable translucent calibration equipment, including described projection correction's system, in addition to movable rod.A kind of control method of portable translucent correction, comprises the following steps：System controls light source to illuminate the target area of paper；Image variants are carried out, and controls camera adjustment focal length, interesting target window cut out and adjusted the angle of target area, make it full of video frequency output window to be shown.This programme structure design is simple, can quickly autonomously carry out the video window video recording correction of the collection of main target area image and size adjustment, very convenient, improves Consumer's Experience.It is widely used in projection art.
Description
Technical field
The present invention relates to projection field, specially teaching optical projection system and its control method.
Background technology
With the fast development of social economy and science and technology, the theory of Lifelong Learning and whole society's study is constantly accepted, especially
It is the popularization of smart mobile phone and computer, and substantially everyone can possess a smart mobile phone, and each family can possess
One desktop computer either notebook computer, intelligent terminal display device also play increasingly heavier in people live
The effect wanted.Consequentiality is that various internets are online or offline education, and educational undertaking of giving lessons on the spot flourishes.
But the debugging for video recording equipment and the accurate acquisition to camera picture make repeated attempts dependent on manually multiple always, this
Serious puzzlement and greatly inconvenience are brought to teacher, also the listen to the teacher perception experience poor to the student for participating in listening to the teacher,
It is especially fairly obvious in network direct broadcasting education and aspect of giving lessons on the spot, the problem of this equipment deficiency causes.Therefore, it is necessary to set
Count a kind of video window video recording correction system that can quickly autonomously carry out the collection of main target area image and size adjustment
And method.
The content of the invention
In order to solve the above-mentioned technical problem, it is an object of the invention to provide a kind of portable translucent correction system, equipment and
Its control method.
The technical solution adopted in the present invention is：
The present invention provides a kind of portable translucent correction system, including：Light source, camera, MCU, video flowing output module；
Wherein, the output end of the MCU is connected with the input of the video flowing output module, the output end of the camera with it is described
MCU input connection, the light source are connected with the camera.
As the improvement of the technical scheme, the light source is LED.
As the improvement of the technical scheme, the video flowing output module is used for shooting paper target area interested window
The mouth real-time Data Transmission of size and the display of picture.
On the other hand, the present invention also provides a kind of portable translucent calibration equipment, including described projection correction's system, also
Including movable rod, wherein, light source and camera are placed in one end of the movable rod.
Further, the light source be arranged in parallel with the camera.
Further, the movable rod includes a turn dop, and the turn dop is fixed on horizontal plane by screw
On.
Another further aspect, the present invention also provide a kind of control method of portable translucent correction, comprised the following steps：
System controls light source to illuminate the target area of paper；
Camera carries out IMAQ to target area；
Described image is handled, and controls camera adjustment focal length, interesting target window cut out and adjusted mesh
The angle in region is marked, makes it full of video frequency output window to be shown.
Further, the step also includes：Index point is provided with wherein three angles of paper, the camera collects
Paper information, and judge whether the paper profile index point is complete.
Further, if the paper profile index point is imperfect, by adjusting focal length, and then make it that paper areas is complete
Entirely in camera view.
Further, if the paper profile index point is complete, the index point area image is cut out, and it is right
Image does the adjustment at corresponding angle of inclination so that interesting target region is full of projection screen.
The beneficial effects of the invention are as follows：Portable translucent correction system and equipment provided by the invention, it includes light source, taken the photograph
As head, MCU, video flowing output module, and the movable connecting rod rack equipment of multi-joint；It is pending paper that the light source, which is used for,
Part provides necessary light source requirements；Camera is used to gather the desktop picture to be shot, and is collected through MCU processing cameras
Image, and send instruction control adjustment of camera focal length size, make message part to be collected all exposed to camera coverage
It is interior；Then judge paper region, and information extraction is carried out to its area-of-interest, complete target window and cut out, and calculate
The relative dip angle of the paper target area interested gone out after image processor is cut out, respective angles are carried out to target area
Adjustment after, it is amplified operation cause interesting target be partially filled with whole projection screen；The movable connecting rod rack system of multi-joint
Unite for fastening and supporting video camera and light supply apparatus, and be connected with data line wherein, it is good by acquisition process to be easy to
Video stream information real-time Transmission is gone out.This programme structure design is simple, can quickly autonomously carry out main target area image
Collection and the video window video recording correction of size adjustment, it is very convenient, improve Consumer's Experience.
Brief description of the drawings
The embodiment of the present invention is described further below in conjunction with the accompanying drawings：
Fig. 1 is the equipment schematic diagram of first embodiment of the invention；
Fig. 2 is that a kind of portable translucent of the present invention corrects system, the mark paper that equipment and its control method use and phase
Machine visual field relative status schematic diagram；
Fig. 3 is the workflow diagram that a kind of portable translucent of the present invention corrects system, equipment and its control method；
Fig. 4 is the paper areas position adjustment that a kind of portable translucent of the present invention corrects system, equipment and its control method
Control flow chart；
Fig. 5 is the module connection diagram of another embodiment of the present invention.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.
Reference picture 1, it is the equipment schematic diagram of first embodiment of the invention.The portable translucent calibration equipment, including：It is main
Dynamic LED light source device, smart camera processing system, video flowing output control system and the movable connecting rod rack system of multi-joint
System；
Wherein described active LED light source device is parallel with cam device, necessary for being provided to pending paper portions
Light source requirements；
The smart camera processing system, including：
Camera, for gathering the desktop field-of-view image to be shot in real time；
Image processor, the image collected for handling camera, send instruction control adjustment of camera focal length size
Cut out with to interesting target window, and calculate the relative of the paper target area interested after image processor is cut out and incline
Rake angle, after the adjustment that respective angles are carried out to target area, amplified operation causes interesting target to be partially filled with entirely throwing
Shadow screen；
The video flowing output control system is used to realize to shooting paper target area interested fixed window size
Real-time Data Transmission and display；
The movable connecting rod rack system of multi-joint is used to fastening and supporting video camera and light supply apparatus, and by collection
Video stream information is gone out by data wire real-time Transmission.
The present invention also provides a kind of control method of portable translucent correction, comprises the following steps：
System controls light source to illuminate the target area of paper；
Camera carries out IMAQ to target area；
Described image is handled, and controls camera adjustment focal length, interesting target window cut out and adjusted mesh
The angle in region is marked, makes it full of video frequency output window to be shown.
Further, the step also includes：Index point is provided with wherein three angles of paper, the camera collects
Paper information, and judge whether the paper profile index point is complete.
Further, if the paper profile index point is imperfect, by adjusting focal length, and then make it that paper areas is complete
Entirely in camera view.
Further, if the paper profile index point is complete, the index point area image is cut out, and it is right
Image does the adjustment at corresponding angle of inclination so that interesting target region is full of projection screen.
Wherein, the active light source is LED；The hardcore of the smart camera processing system is camera, totally one
Set, is placed in parallel with LED light source and is installed on fixed support front end.
The movable connecting rod rack system of multi-joint can be made up of a fixed turn dop and three connecting rods, turn
Dop is by screwdriver fastener on table angle.Three connecting rods extended out are by the bar of two pitching functions and a rotation
The bar composition of function, it is possible to achieve cam device freely converting of putting of orientation on the table.
Pixel letter is shown in the image-region of the camera collection of the smart camera processing system in digitlization
Breath, the paper on desktop is shown in the camera and pixel information, making contrast using both borders collected can be with
Angle of inclination between the two is analyzed, the paper image information for then making to collect carries out corresponding angle rotation.
The smart camera processing system can also determine whether to change paper in addition to specific objective is acquired.Take the photograph
The continuous refresh picture of camera, if present frame and former frame are judged as changing paper, weight there occurs the variable quantity more than threshold value
It is new to carry out paper position and size judgement.
The video flowing output control system is cut out through smart camera processing system and postrotational paper receiving
After opening information, now need to compare the paper size after cutting out and normal video output window size, if after cutting out
Antiquarian is less than normal video output window size, then does corresponding enhanced processing.Final purpose is to make the paper after cutting out
Open region and be full of whole video frequency output window just.In smart camera processing system, video camera and image processor are carried out
Data real-time, interactive.
Preferably, index point is provided with wherein three angles of paper, the camera collects paper information, and judges institute
Whether complete state paper profile index point.Three index points are portrayed in three corners of paper with specific seal, between this index point
Line be to characterize paper region feature.This approach avoid caused by paper and desktop color are close can not
Error extraction caused by differentiation, while reduce the dependence to certain paper.
Described image processing operation is divided into two stages, and the first stage includes initial treatment image and sent to instruct control to take the photograph
Camera adjusts focal length size；Second stage：Interesting target region is cut out and carried out accordingly to cutting back zone area image
Angle rotation and enhanced processing.
Compared by the image to paper areas and video camera boundary pixel, so calculate now paper relative to regarding
The angle of inclination of field border, corresponding angle rotation is made according to this.
It also includes making cut out areas size adjustment.If the paper information after cutting out is less than normal video output window
Size, then do corresponding enhanced processing.Final purpose be to make the paper information after cutting out lucky be full of whole video frequency output
Window, the perception effect best to spectators.
Reference picture 2, correct system for a kind of portable translucent of the present invention, the mark paper that equipment and its control method use
With camera fields of view relative status schematic diagram.Wherein outside solid box represents camera fields of view, and middle solid box represents paper position.Its
It can be made marks respectively in the upper left of plain paper, upper right, lower-left with spider seal so that plain paper meets specific figure
As detection needs.Using image detection correlation technique, the center intersection point of spider is found, and respectively by upper left and upper right
The connection of heart point is in alignment 1, the central point connection in alignment 2 of upper left and lower-left, is then based on upper right spider intersection point
The parallel lines of straight line 1 and 2 is done in position, that is, obtains area-of-interest.Interesting target region is with camera coverage relative angle
θ.Pixel information, desktop is shown in the image-region of the camera collection of the smart camera processing system in digitlization
On paper show in the camera and pixel information, two can be analyzed by making contrast using both borders collected
Angle of inclination between person, the paper image information for then making to collect carry out corresponding angle rotation.
Reference picture 3, the workflow diagram of system, equipment and its control method is corrected for a kind of portable translucent of the present invention.
Hardware unit is built activation system after completion, and now LED light source lights for being illuminated to target area, and camera work is right
Whether target area carries out video flowing collection, and opened according to image overall intensity effect detection light source or whether illumination is sufficient,
Otherwise LED light source will be restarted or improve light source power.Camera collects desktop paper information, whether judges paper profile index point
Completely, if imperfect will adjust camera focus so that paper areas is all in camera fields of view；Start if normal to mark
Image is cut out in will point region, and the adjustment of corresponding angle of inclination and size is done to it, and video information is passed through into projection
Device is transferred out for showing.This process will do whether change paper judgement to collection image in real time, if not changing paper,
Camera parameter adjustment is not made；Otherwise, then refresh parameter, re-searches for desktop paper.
Reference picture 4, the paper areas position of system, equipment and its control method is corrected for a kind of portable translucent of the present invention
The control flow chart of adjustment.After camera acquisition to video image, mark point in image-region will be marked in advance
Feature spider is detected, after angle point grid is carried out to position of intersecting point in spider, accurately find out the picture of spider intersection point
Plain coordinate position, and count；If three spider position of intersecting point extract successfully, as shown in Figure 2, to three position of intersecting point phases
Connect, determine area-of-interest, and the region is contrasted with camera fields of view, calculate the relative tilt angle of area-of-interest
Degree and visual field scaling, after corresponding angle adjustment and enhanced processing are done to interesting target region, most at last adjust after
Image projection is gone out.
Reference picture 5, the present invention provide a kind of portable translucent correction system, including：Light source, camera, MCU, video flowing
Output module；Wherein, the output end of the MCU is connected with the input of the video flowing output module, the camera it is defeated
Go out end to be connected with the input of the MCU, the light source is connected with the camera.Wherein, the light source can be LED.
As the improvement of the technical scheme, the video flowing output module is used for shooting paper target area interested window
The mouth real-time Data Transmission of size and the display of picture.
On the other hand, the present invention also provides a kind of portable translucent calibration equipment, including described projection correction's system, also
Including movable rod, wherein, light source and camera are placed in one end of the movable rod.
Further, the light source be arranged in parallel with the camera.
Further, the movable rod includes a turn dop, and the turn dop is fixed on horizontal plane by screw
On.
Portable translucent correction system and equipment provided by the invention, it includes light source, camera, MCU, video flowing output
Module, and the movable connecting rod rack equipment of multi-joint；The light source is used to provide necessary light source for pending paper portions
Demand；Camera is used to gather the desktop picture to be shot, the image collected through MCU processing cameras, and sends instruction
Adjustment of camera focal length size is controlled, makes message part to be collected all in camera coverage；Then paper institute is judged
Information extraction is carried out in region, and to its area-of-interest, target window is completed and cuts out, and calculate and cut out through image processor
The relative dip angle of paper target area interested afterwards, after the adjustment that respective angles are carried out to target area, amplified behaviour
Make to cause interesting target to be partially filled with whole projection screen；The movable connecting rod rack system of multi-joint is used to fasten and support is taken the photograph
Camera and light supply apparatus, and data line is connected with wherein, it is easy to the good Video stream information real-time Transmission of acquisition process
Go out.This programme structure design is simple, can quickly autonomously carry out the collection of main target area image and be regarded with what size adjusted
The video recording correction of frequency window, it is very convenient, improve Consumer's Experience.
Above is the preferable implementation to the present invention is illustrated, but the invention is not limited to the implementation
Example, those skilled in the art can also make a variety of equivalent variations on the premise of without prejudice to spirit of the invention or replace
Change, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (10)
1. a kind of portable translucent corrects system, it is characterised in that including：Light source, camera, MCU, video flowing output module；
Wherein, the output end of the MCU is connected with the input of the video flowing output module, the output end of the camera with it is described
MCU input connection, the light source are connected with the camera.
2. portable translucent according to claim 1 corrects system, it is characterised in that：The light source is LED.
3. portable translucent according to claim 1 corrects system, it is characterised in that：The video flowing output module is used for
To shooting the real-time Data Transmission of paper target area interested window size and the display of picture.
4. a kind of portable translucent calibration equipment, it is characterised in that including the projection correction described in any one of claims 1 to 3
System, in addition to movable rod, wherein, light source and camera are placed in one end of the movable rod.
5. portable translucent calibration equipment according to claim 4, it is characterised in that：The light source is put down with the camera
Row is set.
6. portable translucent calibration equipment according to claim 4, it is characterised in that：The movable rod includes a turn
Dop, the turn dop are fixed on horizontal plane by screw.
7. a kind of control method of portable translucent correction, it is characterised in that comprise the following steps：
System controls light source to illuminate the target area of paper；
Camera carries out IMAQ to target area；
Described image is handled, and controls camera adjustment focal length, interesting target window cut out and adjusted target area
The angle in domain, make it full of video frequency output window to be shown.
8. the control method of portable translucent correction according to claim 7, it is characterised in that the step also includes：
Index point is provided with wherein three angles of paper, the camera collects paper information, and judges the paper profile mark
Whether point is complete.
9. the control method of portable translucent correction according to claim 8, it is characterised in that：If the paper delineator
Will point is imperfect, then by adjusting focal length, and then paper areas is completely exposed in camera view.
10. the control method of portable translucent correction according to claim 8, it is characterised in that：If the paper profile
Index point is complete, then the index point area image is cut out, and the adjustment at corresponding angle of inclination is done to image so that sense
Targets of interest region is full of projection screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710718386.3A CN107396076A (en) | 2017-08-21 | 2017-08-21 | A kind of portable translucent correction system, equipment and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710718386.3A CN107396076A (en) | 2017-08-21 | 2017-08-21 | A kind of portable translucent correction system, equipment and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107396076A true CN107396076A (en) | 2017-11-24 |
Family
ID=60352788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710718386.3A Pending CN107396076A (en) | 2017-08-21 | 2017-08-21 | A kind of portable translucent correction system, equipment and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107396076A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1799252A (en) * | 2003-06-02 | 2006-07-05 | 卡西欧计算机株式会社 | Captured image projection apparatus and captured image correction method |
| TW200812371A (en) * | 2006-08-30 | 2008-03-01 | Avermedia Tech Inc | Interactive document camera and system of the same |
| CN203363588U (en) * | 2013-06-21 | 2013-12-25 | 淄博云极教学设备有限公司 | Real object projector |
-
2017
- 2017-08-21 CN CN201710718386.3A patent/CN107396076A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1799252A (en) * | 2003-06-02 | 2006-07-05 | 卡西欧计算机株式会社 | Captured image projection apparatus and captured image correction method |
| TW200812371A (en) * | 2006-08-30 | 2008-03-01 | Avermedia Tech Inc | Interactive document camera and system of the same |
| CN203363588U (en) * | 2013-06-21 | 2013-12-25 | 淄博云极教学设备有限公司 | Real object projector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105049764B (en) | A kind of geography teaching map based on multiple positioning shooting heads is as tracking and system | |
| CN103716594B (en) | Panorama splicing linkage method and device based on moving target detecting | |
| CN103763479B (en) | The splicing apparatus and its method of real time high-speed high definition panorama video | |
| CN103729981B (en) | A kind of child sitting gesture monitoring intelligent terminal | |
| CN101576771B (en) | Scaling method for eye tracker based on nonuniform sample interpolation | |
| CN105578044A (en) | Panoramic view adaptive teacher image analysis method | |
| WO2018171041A1 (en) | Moving intelligent projection system and method therefor | |
| CN106791485A (en) | The changing method and device of video | |
| CN104615978B (en) | Direction of visual lines tracking and device | |
| CN102043576A (en) | System and method for automatically adjusting display picture | |
| CN102724449A (en) | Interactive TV and method for realizing interaction with user by utilizing display device | |
| CN103247260B (en) | LED display automatic brightness-regulating system and method | |
| KR20100016696A (en) | Student learning attitude analysis systems in virtual lecture | |
| CN113591703B (en) | Method for locating personnel in classroom and classroom integrated management system | |
| CN106162203A (en) | Panoramic video player method, player and wear-type virtual reality device | |
| CN106558103A (en) | Augmented reality image processing system and augmented reality image processing method | |
| CN202306329U (en) | Television system capable of adjusting angle based on human eye viewing direction | |
| CN108960002A (en) | A kind of movement adjustment information reminding method and device | |
| CN207117843U (en) | A kind of portable translucent correction system and equipment | |
| CN108415493A (en) | A kind of classroom environment intelligent control system | |
| CN114938556A (en) | Automatic adjusting method and device for light of desk lamp, electronic equipment and storage medium | |
| CN104363399A (en) | Projection angle adjustment method of adaptive projection system | |
| CN111083368A (en) | Simulation physics cloud platform panoramic video display system based on high in clouds | |
| CN104360567A (en) | Projection brightness adjustment method of adaptive projection system | |
| CN107396076A (en) | A kind of portable translucent correction system, equipment and its control method |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171124 |