CN110223619A - Method for controlling projection, device, optical filter and optical projection system - Google Patents
Method for controlling projection, device, optical filter and optical projection system Download PDFInfo
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- CN110223619A CN110223619A CN201910501396.0A CN201910501396A CN110223619A CN 110223619 A CN110223619 A CN 110223619A CN 201910501396 A CN201910501396 A CN 201910501396A CN 110223619 A CN110223619 A CN 110223619A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
-
- 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
- G06F3/0488—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 using a touch-screen or digitiser, e.g. input of commands through traced gestures
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
Abstract
The embodiment of the present invention provides a kind of method for controlling projection, device, optical filter and optical projection system, this method comprises: obtaining the first band light of optical filter acquisition；According to first band light, RGB image is generated, determines whether that user is in the first predeterminable area according to RGB image；According to whether there is user to be in the first predeterminable area, the working condition of projection device and laser is controlled, the working condition of projection device includes: wake-up and suspend mode；The working condition of laser includes: on and off；In the case where laser is in the working condition opened, the second band light in the second predeterminable area of optical filter acquisition is obtained；The touch control operation of projected picture is realized according to second band light.The embodiment of the present invention realizes the automatic control of projection device and laser, is not necessarily to manual operation, improves user experience, saves power supply, extends the service life of projection device and laser.
Description
Technical field
The present embodiments relate to image capture device technology more particularly to a kind of method for controlling projection, device, optical filters
And optical projection system.
Background technique
Projection touch-control mainly uses laser image technology, and laser image technology is to emit laser using laser, transmitting
Laser is in planar, forms light film, and light film is higher than projection plane 1-3mm, thickness about 1mm.When finger or any opaque object
When contacting projection plane, light is reflected to an image capture device being arranged in above projector, passes through optoelectronic position
It accurately calculates, obtains the coordinate of touch-control, realize the operation to projected picture icon.
Currently, the projection device in touch-control is projected when unattended for a long time, it can not auto sleep projection and closing touching
Control, needs manual operation, cumbersome, wastes power supply, reduces the service life of projection device and laser.
Summary of the invention
The embodiment of the present invention provides a kind of method for controlling projection, device, optical filter and optical projection system, solves Current projection touching
Projection device in control auto sleep projection and can not close touch-control, need manual operation, operate when unattended for a long time
It is cumbersome, the problem of wasting power supply, reduce the service life of projection device and laser.
In a first aspect, the embodiment of the invention provides a kind of method for controlling projection, this method comprises:
Obtain the first band light of optical filter acquisition；
According to the first band light, RGB image is generated, it is default to determine whether that user is in first according to RGB image
In region；
According to whether there is user to be in the first predeterminable area, the working condition of projection device and laser is controlled, wherein
The working condition of the projection device includes: wake-up and suspend mode；The working condition of the laser includes: on and off；
In the case where laser is in the working condition opened, the second wave in the second predeterminable area of the optical filter acquisition is obtained
Duan Guang；
The touch control operation of projected picture is realized according to the second band light.
Wherein, the first band light is visible light, and the second band light is infrared light.
Wherein, first predeterminable area is the region of the default size other than projected picture predeterminated position.
Further, this method further include:
According to the brightness of image of RGB image, ambient brightness is determined；
Projection device parameter is adjusted according to ambient brightness to control the brightness of projected picture.
Wherein, second predeterminable area is projected picture region.
Further, the touch control operation that projected picture is realized according to the second band light includes:
Control instruction is generated according to the position of second band light, projected picture is controlled according to the control instruction.
Second aspect, the embodiment of the invention also provides a kind of projection controls, comprising:
First band light obtains module, for obtaining the first band light of optical filter acquisition；
Image generation module, for generating RGB image, being determined whether according to RGB image according to the first band light
User is in the first predeterminable area；
Working state control module, for according to whether there is user to be in the first predeterminable area, control projection device and
The working condition of laser, wherein the working condition of the projection device includes: wake-up and suspend mode；The work of the laser
State includes: on and off；
Second band light obtains module, in the case where laser is in the working condition opened, obtaining the optical filter acquisition
The second predeterminable area in second band light；
Touch-control module, for realizing the touch control operation of projected picture according to the second band light.
The third aspect, the embodiment of the invention also provides a kind of optical filters, comprising: has acquisition first band light and second
The function of band of light, wherein the first band light is visible light, and the second band light is infrared light.
Fourth aspect, the embodiment of the invention also provides a kind of optical projection systems, comprising: image capture device, described image
Acquisition equipment includes the optical filter as described in the third aspect of the embodiment of the present invention, laser, projection device and the embodiment of the present invention
Projection control described in second aspect, the projection device are used to form projected picture.
Further, the infrared band bandwidth of the laser and the infrared band bandwidth of image capture device meet default
Bandwidth condition.
Filter method for controlling projection provided in an embodiment of the present invention, by the first band light for obtaining optical filter acquisition；According to
The first band light generates RGB image, determines whether that user is in the first predeterminable area according to RGB image；According to being
It is no to there is user to be in the first predeterminable area, control the working condition of projection device and laser；The work opened is in laser
Make under state, obtains the second band light of the optical filter acquisition；The touch-control of projected picture is realized according to the second band light
Operation, the embodiment of the present invention is when no user is in the first predeterminable area, control projection device suspend mode and closing laser,
Power supply is saved, the service life of projection device and laser is extended；When there is user to be in the first predeterminable area, projection device is controlled
It wakes up and laser is opened, realize the automatic control of projection device and laser, be not necessarily to manual operation, improve user experience.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing does one and simply introduces, it should be apparent that, drawings in the following description are some embodiments of the invention, for this
For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others
Attached drawing.
Fig. 1 is a kind of flow diagram for method for controlling projection that the embodiment of the present invention one provides；
Fig. 2 is a kind of structural schematic diagram of projection control provided by Embodiment 2 of the present invention；
Fig. 3 a is a kind of structural schematic diagram for optical filter that the embodiment of the present invention three provides；
Fig. 3 b is a kind of structural schematic diagram for optical filter that the embodiment of the present invention three provides；
Fig. 3 c is a kind of structural schematic diagram for optical filter that the embodiment of the present invention three provides；
Fig. 4 is a kind of structural schematic diagram for optical projection system that the embodiment of the present invention four provides.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, hereinafter with reference to attached in the embodiment of the present invention
Figure, clearly and completely describes technical solution of the present invention by embodiment, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
Embodiment one
Fig. 1 is a kind of flow chart for method for controlling projection that the embodiment of the present invention one provides.The technical solution of the present embodiment
It can be adapted for projecting the case where being controlled in touch-control.This method can be by a kind of projection control provided in an embodiment of the present invention
Device executes, which can be realized by the way of software and/or hardware, and be configured in projection device and apply.The party
Method specifically includes following operation:
S110, the first band light for obtaining optical filter acquisition.
Projection device is for generating projected picture, and to touch interface, user is right in projected picture for projection in projected picture
Touch control operation is carried out to touch interface.It include optical filter in image capture device, there are two types of function, a kind of function is optical filter tool
First band light can be acquired, another function is can to acquire second band light.Wherein, first band light can be visible
Light.
S120, according to the first band light, generate RGB image, determine whether that user is in first according to RGB image
In predeterminable area.
Illustratively, optical filter acquires the first band light in the first predeterminable area, optionally, first predeterminable area
For the region of the default size other than projected picture predeterminated position.Illustratively, predeterminated position is the surrounding of projected picture
Boundary, first predeterminable area are the region of the default size other than projected picture surrounding boundary.Pass through collected first
Band of light generates RGB image, determines in the first predeterminable area whether there is user according to RGB image.Illustratively, according to RGB
Image determines whether that user is in the first predeterminable area, can use difference method, obtain two prefixed time intervals
RGB image can determine in the first predeterminable area there is user if there are difference images for two RGB images, if there is no
Difference image, it is determined that do not have user in the first predeterminable area.
S130, according to whether there is user to be in the first predeterminable area, control the working condition of projection device and laser,
Wherein, the working condition of the projection device includes: wake-up and suspend mode, and the working condition of the laser includes: on and off.
Specifically, when there is user to be in the first predeterminable area, the working condition for controlling projection device is wake-up states,
The working condition of laser is to open；When not having user to be in the first predeterminable area, the working condition for controlling projection device is
Dormant state, the working condition of laser is to close, it is possible thereby to realize control according to whether user is in the first predeterminable area
The working condition of projection device and laser, control projection device is stopped when realization does not have user in the first predeterminable area
Sleep, laser close, save power supply, extend projection device and laser service life, have in the first predeterminable area user when
It waits the wake-up of control projection device and laser is opened, it is user-friendly, improve user experience.
S140, in the case where laser is in the working condition opened, in the second predeterminable area for obtaining the optical filter acquisition
Second band light.
When laser is under the working condition opened, the optical filter passed through in image capture device acquires the second predeterminable area
In second band light.Optionally, the first band light is visible light, and the second band light is infrared light, laser hair
The light penetrated is identical as the second band light that optical filter acquires.That is, laser can be infrared laser, correspondingly, infrared light is
Infrared laser.Preferably, second predeterminable area is projected picture region.
Further, this method further include: according to the brightness of image of RGB image, determine ambient brightness；According to ambient brightness
Projection device parameter is adjusted to control the brightness of projected picture.When ambient brightness is more than predetermined luminance threshold value, control improves projection
The brightness of picture, when ambient brightness is lower than predetermined luminance threshold value, control reduces the brightness of projected picture, it is possible thereby to guarantee to throw
The brightness of shadow picture and ambient brightness are adapted, and improve user's operation comfort level.
S150, the touch control operation that projected picture is realized according to the second band light.
Specifically, the touch control operation that projected picture is realized according to the second band light includes: according to second band
The position of light generates control instruction, controls projected picture according to the control instruction.When user operates in projected picture, it can incite somebody to action
Second band light is reflected back in optical filter, and optical filter acquires the second band light reflected, according to the position of second band light, really
Determine the operating position of user, position generates control instruction depending on the user's operation, realizes by control instruction to projected picture
Touch-control.
Filter method for controlling projection provided in an embodiment of the present invention, by the first band light for obtaining optical filter acquisition；According to
The first band light generates RGB image, determines whether that user is in the first predeterminable area according to RGB image；According to being
It is no to there is user to be in the first predeterminable area, control the working condition of projection device and laser；The work opened is in laser
Make under state, obtains the second band light of the optical filter acquisition；The touch-control of projected picture is realized according to the second band light
Operation, the embodiment of the present invention is when no user is in the first predeterminable area, control projection device suspend mode and closing laser,
Power supply is saved, the service life of projection device and laser is extended；When there is user to be in the first predeterminable area, projection device is controlled
It wakes up and laser is opened, realize the automatic control of projection device and laser, be not necessarily to manual operation, improve user experience.
Embodiment two
Fig. 2 is a kind of structural block diagram of projection control provided by Embodiment 2 of the present invention.The device is for executing
State a kind of method for controlling projection provided by any embodiment.The device includes:
First band light obtains module 210, for obtaining the first band light of optical filter acquisition；
Image generation module 220, for generating RGB image, being according to RGB image determination according to the first band light
It is no to there is user to be in the first predeterminable area；
Working state control module 230, for controlling projection device according to whether there is user to be in the first predeterminable area
With the working condition of laser, wherein the working condition of the projection device includes: wake-up and suspend mode；The work of the laser
Include as state: on and off；
Second band light obtains module 240, for obtaining the optical filter and adopting in the case where laser is in the working condition opened
Second band light in second predeterminable area of collection；
Touch-control module 250, for realizing the touch control operation of projected picture according to the second band light.
Wherein, the first band light is visible light, and the second band light is infrared light.
Wherein, first predeterminable area is the region of the default size other than projected picture predeterminated position.
Further, device further include: brightness control module is used for:
According to the brightness of image of RGB image, ambient brightness is determined；
Projection device parameter is adjusted according to ambient brightness to control the brightness of projected picture.
Wherein, second predeterminable area is projected picture region.
Further, the touch-control module, is used for:
Control instruction is generated according to the position of second band light, projected picture is controlled according to the control instruction.The present invention
The projection control that embodiment two provides realizes the automatic control of projection device and laser, is not necessarily to manual operation, improves and uses
Family experience, saves power supply, extends the service life of projection device and laser.
Projection control provided by any embodiment of the invention can be performed in projection control provided by the embodiment of the present invention
Method processed has the corresponding functional module of execution method and beneficial effect.
Embodiment three
Fig. 3 a is a kind of structural schematic diagram for optical filter that the embodiment of the present invention three provides.The optical filter includes: to have to adopt
Collect the function of first band light and second band light, wherein the first band light is visible light, and the second band light is red
Outer light.Optical filter can be designed with distinguishable region, to realize the function of two kinds of light of acquisition.Optical filter can not also distinguishable region
It is designed, it is only necessary to the function of two kinds of band of light of acquisition can be realized using specific technique.The filter designed with subregion
It is a kind of structural schematic diagram of optical filter provided in an embodiment of the present invention as shown in Figure 3a for mating plate.In order to realize optical filter
Not only first band light can have been acquired but also second band light can be acquired, it can be by filter designs at including: the visible light region RGB
310 and infrared region 320；The visible light region RGB 310 penetrates RGB visible light, and the infrared region 320 penetrates infrared light；
The visible light region RGB 310 and infrared region 320 cover entire optical filter.
The shape of the optical filter can be rectangle, round or ellipse, be set according to actual needs, does not do have herein
Shape limits.Optical filter includes the visible light region RGB and infrared region, two entire optical filters of area filling, two regions
Concrete shape be not construed as limiting, can be that horizontal median axis along optical filter is setting up and down or vertical central axis line left and right settings.Two
A region is also possible to nested setting, such as in the form of concentric circles, and one of two kinds of filtered regions are inner circle region, another
Kind filtered region is the circle ring area among outer circle and inner circle；It can also be in the form of concentric rectangles, in two kinds of filtered regions
One kind is interior rectangular area, and another filtered region is the rectangle ring region among interior rectangle and outer rectangle.
Optionally, the visible light region RGB and the infrared region are divided into the horizontal median axis of the optical filter
It sets or vertical central axis line left and right settings.
Optionally, Fig. 3 b is the structural schematic diagram of optical filter, wherein optical filter includes the visible light region RGB 310 and infrared
Region 320, wherein the visible light region RGB 310 includes the first visible light region RGB 311 and the 2nd visible light region RGB
312, wherein the area of the first visible light region RGB 311 and the 2nd visible light region RGB 312 can be equal, can not also phase
Deng.Optionally, the area equation of the first visible light region RGB 311 and the 2nd visible light region RGB 312, and it is less than infrared region
320 area.The optical filter includes: along optical filter horizontal median axis successively the first visible light region RGB setting up and down
311, infrared region 320 and the 2nd visible light region RGB 312.Or, as shown in Figure 3c, it is successively left along optical filter vertical central axis line
The first visible light region RGB 311, infrared region 320 and the 2nd visible light region RGB 312 of right setting.By with different filters
The filtered region of light function, optical filter can acquire the light of different-waveband, and the visible light region RGB can acquire RGB visible light, red
Exterior domain can acquire infrared light, guarantee when needing to acquire two kinds of light, do not need to configure multiple optical filters, not need more more
It is switched between a optical filter, acquisition while can realizing two kinds of light, is not necessarily to user's manual switching, improve user's body
It tests.
Optical filter provided in an embodiment of the present invention has the function through two kinds of band of light, adopts while realizing two kinds of light
Collection is not necessarily to user's manual switching, improves user experience.
Example IV
Fig. 4 is a kind of structural schematic diagram for optical projection system that the embodiment of the present invention four provides, as shown in figure 4, the projection system
System includes image capture device 410, described image acquisition equipment 410 including such as optical filter provided by the above embodiment, laser
420, projection device 430 and the projection control 440 such as the offer of above-mentioned any embodiment, the projection device 430 are used for shape
At projected picture.
Laser is by taking infrared laser as an example, laser transmitting infrared laser to view field, and manpower is anti-in view field
Infrared laser is penetrated, by using infrared filtering function to can capture the reflective of manpower reflection in the optical filter of image capture device
Point determines the position of reflective spot, according to the position of reflective spot, carries out touch-control.Projection control is provided according to above-described embodiment
Method for controlling projection projection device is controlled.
Further, the infrared band bandwidth of the laser and the infrared band bandwidth of image capture device meet default
Bandwidth condition.Preset condition can be the corresponding infrared band bandwidth of saturating infrared function in the optical filter of image capture device
The difference of the infrared band bandwidth issued with infrared laser is less than preset threshold, i.e. two bandwidth are very close, while red
Outer transmitance reduces.
Optical projection system provided in this embodiment includes image capture device, laser, projection device and projection control,
Projection device and laser are controlled by projection control, realize the automatic control of projection device and laser, nothing
Manual operation is needed, user experience is improved, saves power supply, extends the service life of projection device and laser.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of method for controlling projection characterized by comprising
Obtain the first band light of optical filter acquisition；
According to the first band light, RGB image is generated, determines whether that user is in the first predeterminable area according to RGB image
In；
According to whether there is user to be in the first predeterminable area, the working condition of projection device and laser is controlled, wherein described
The working condition of projection device includes: wake-up and suspend mode；The working condition of the laser includes: on and off；
In the case where laser is in the working condition opened, the second band in the second predeterminable area of the optical filter acquisition is obtained
Light；
The touch control operation of projected picture is realized according to the second band light.
2. the method according to claim 1, wherein the first band light is visible light, the second band
Light is infrared light.
3. the method according to claim 1, wherein first predeterminable area is to preset position positioned at projected picture
The region of default size other than setting.
4. according to the method described in claim 2, it is characterized by further comprising:
According to the brightness of image of RGB image, ambient brightness is determined；
Projection device parameter is adjusted according to ambient brightness to control the brightness of projected picture.
5. the method according to claim 1, wherein second predeterminable area is projected picture region.
6. the method according to claim 1, wherein described realize projected picture according to the second band light
Touch control operation includes:
Control instruction is generated according to the position of second band light, projected picture is controlled according to the control instruction.
7. a kind of projection control characterized by comprising
First band light obtains module, for obtaining the first band light of optical filter acquisition；
Image generation module, for generating RGB image, determining whether user according to RGB image according to the first band light
In the first predeterminable area；
Working state control module, for controlling projection device and laser according to whether there is user to be in the first predeterminable area
The working condition of device, wherein the working condition of the projection device includes: wake-up and suspend mode, the working condition of the laser
Include: on and off；
Second band light obtains module, in the case where laser is in the working condition opened, obtaining the of the optical filter acquisition
Second band light in two predeterminable areas；
Touch-control module, for realizing the touch control operation of projected picture according to the second band light.
8. a kind of optical filter characterized by comprising have the function of acquiring first band light and second band light, wherein institute
Stating first band light is visible light, and the second band light is infrared light.
9. a kind of optical projection system characterized by comprising image capture device, it includes that right such as is wanted that described image, which acquires equipment,
Optical filter described in asking 8, laser, projection device and projection control as claimed in claim 7, the projection device are used
In formation projected picture.
10. optical projection system according to claim 9, which is characterized in that the infrared band bandwidth and image of the laser
The infrared band bandwidth of acquisition equipment meets pre-set bandwidths condition.
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Application publication date: 20190910 |