CN110161792A - Focusing parameter method of adjustment, Atomatic focusing method, device and electronic equipment - Google Patents
Focusing parameter method of adjustment, Atomatic focusing method, device and electronic equipment Download PDFInfo
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- CN110161792A CN110161792A CN201810141830.4A CN201810141830A CN110161792A CN 110161792 A CN110161792 A CN 110161792A CN 201810141830 A CN201810141830 A CN 201810141830A CN 110161792 A CN110161792 A CN 110161792A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/28—Systems for automatic generation of focusing signals
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- 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
- G03B21/53—Means for automatic focusing, e.g. to compensate thermal effects
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Abstract
The embodiment of the present application provides a kind of Focusing parameter method of adjustment, Atomatic focusing method, device and electronic equipment.Wherein, in current focus operation, control focusing power mechanism is rotated since baseline position, until the clarity of projected image meets projection requirements；Count the time assessment data of current focus operation；Data are assessed based on the time, adjust the baseline position；Wherein, the baseline position after adjusting is used to control the focus operation next time of the focusing power mechanism.Technical solution provided by the embodiments of the present application ensure that focusing efficiency.
Description
Technical field
The invention relates to electronic technology field more particularly to a kind of Focusing parameter method of adjustment and devices, one kind
Atomatic focusing method and device and a kind of electronic equipment.
Background technique
In order to be projected out clear image, projection device using when be also required to focus, current most projection device
Auto-focusing can be supported, so as to simplify focus operation.
Currently, supporting the projection device of auto-focusing mainly to pass through control focusing power mechanism rotation, to drive projection
Camera lens rotation is focused to realize, focusing power mechanism can be for example motor etc..When projection device carries out auto-focusing, first will
Focusing power mechanism turns to baseline position, later by camera acquired projections picture, and according to the shadowgraph currently acquired
The clarity in face decides whether that control focusing power mechanism is primary to the rotation of focusing direction, until finding focus position.
Due to the limitation that hardware generates in the prior art, the focus position of different projection devices be cannot keep unanimously, and
Baseline position is the same, therefore is had from the step pitch that baseline position reaches focus position with short, may cause certain projections
The focusing time of equipment is longer, and influences focusing efficiency.
Summary of the invention
The embodiment of the present application provides a kind of Focusing parameter method of adjustment, Atomatic focusing method, device and electronic equipment, to
The technical issues of focusing time is long in the prior art for solution, low efficiency of focusing.
In a first aspect, providing a kind of Focusing parameter method of adjustment in the embodiment of the present application, comprising:
Count the time assessment data of current focus operation；
Data, the baseline position of adjustment focusing power mechanism are assessed based on the time；
Wherein, the baseline position after adjusting is used to control the focus operation next time of the focusing power mechanism.
Second aspect provides a kind of Atomatic focusing method in the embodiment of the present application, comprising:
Control focusing power mechanism is rotated since baseline position, until the clarity of projected image meets projection and wants
It asks；
Count the time assessment data of current focus operation；
Data are assessed based on the time, adjust the baseline position；
Wherein, the baseline position after adjusting is used to control the focus operation next time of the focusing power mechanism.
The third aspect provides a kind of Focusing parameter adjustment device in the embodiment of the present application, comprising:
Statistical module, the time for counting current focus operation assess data；
Module is adjusted, for assessing data, the baseline position of adjustment focusing power mechanism based on the time；
Wherein, the baseline position after adjusting is used to control the focus operation next time of the focusing power mechanism.
Fourth aspect provides a kind of automatic focusing mechanism in the embodiment of the present application, comprising:
Focusing module is rotated for controlling focusing power mechanism since baseline position, until projected image is clear
Clear degree meets projection requirements；
Statistical module, the time for counting current focus operation assess data；
Module is adjusted, for assessing data based on the time, adjusts the baseline position；
Wherein, the baseline position after adjusting is used to control the focus operation next time of the focusing power mechanism.
In terms of 5th, a kind of electronic equipment is provided in the embodiment of the present application, including processing component, the processing component connect
The focusing power mechanism and storage assembly connect；
The storage assembly stores one or more computer program instructions；One or more computer instruction is for institute
It states processing component and calls execution.
The processing component is used for:
It controls the focusing power mechanism to be rotated since baseline position, be thrown until the clarity of projected image meets
Shadow requirement；
Count the time assessment data of current focus operation；
Data are assessed based on the time, adjust the baseline position；
Wherein, the baseline position after adjusting is used to control the focus operation next time of the focusing power mechanism.
In the embodiment of the present application, in current focus operation, control focusing power mechanism is turned since baseline position
It is dynamic, until the clarity of projected image meets projection requirements；Count the time assessment data that current focus operation generates；Based on institute
Time assessment data are stated, the baseline position is adjusted；Wherein, the baseline position after adjusting is dynamic for controlling the focusing
The focus operation next time of force mechanisms.By adjusting baseline position, under the premise of guaranteeing focusing successfully, so that focus next time
Operation can shorten focusing time as far as possible, improve focusing efficiency.
These aspects or other aspects of the application can more straightforward in the following description.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this Shen
Some embodiments please for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 shows a kind of flow chart of Focusing parameter method of adjustment one embodiment provided by the present application；
Fig. 2 shows a kind of flow charts of Atomatic focusing method one embodiment provided by the present application；
Fig. 3 shows a kind of flow chart of another embodiment of Atomatic focusing method provided by the present application；
Fig. 4 shows a kind of structural schematic diagram of Focusing parameter adjustment device one embodiment provided by the present application；
Fig. 5 shows a kind of structural schematic diagram of automatic focusing mechanism one embodiment provided by the present application；
Fig. 6 shows the structural schematic diagram of a kind of electronic equipment one embodiment provided by the present application；
Fig. 7 shows the structural schematic diagram of another embodiment of a kind of electronic equipment provided by the present application.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described.
In some processes of the description in the description and claims of this application and above-mentioned attached drawing, contain according to
Multiple operations that particular order occurs, but it should be clearly understood that these operations can not be what appears in this article suitable according to its
Sequence is executed or is executed parallel, and serial number of operation such as 101,102 etc. is only used for distinguishing each different operation, serial number
It itself does not represent and any executes sequence.In addition, these processes may include more or fewer operations, and these operations can
To execute or execute parallel in order.It should be noted that the description such as " first " herein, " second ", is for distinguishing not
Same message, equipment, module etc., does not represent sequencing, does not also limit " first " and " second " and be different type.
The technical solution of the embodiment of the present application is mainly used in focusing scene, is especially focused to projection device
In scene.
In order to facilitate understanding, respective explanations are carried out to the technical term being likely to occur in the embodiment of the present application first below:
Focusing power mechanism: the equipment by own rotation to drive camera lens to rotate, such as can be (also known as electric for motor
Motivation, engine, stepper)；
Baseline position: when carrying out focus operation, the initial rotation position for power mechanism of focusing；
Focusing step-length: focusing power mechanism rotates primary rotation step number；
Focus position: when projected image meets projection requirements, power mechanism present position of focusing；
Initial position: baseline position and the corresponding origin position of focus position；
Focusing time: focusing power mechanism turns to focus position the time it takes from baseline position；
Focusing number: focusing power mechanism turns to the number of revolutions of focus position from baseline position；
Time assesses data: for assessing the supplemental characteristic of focusing time, time assessment data can in the embodiment of the present application
To include focusing number or focusing time；
Focus operation: starting turning including focusing power mechanism from baseline position, until focus position is reached, so that projection
Image meets a series of of projection requirements and executes movement, and the power mechanism of focus operation focusing each time needs to rotate primary or more
It is secondary.
Projector distance: the distance of the camera lens of projection device to projection screen.
Due to having the projection device of automatic focusing function at present, use is fixed base position, is being focused every time
Focus position is found by way of repeatedly focusing in operation, due to the inconsistency of different projection device focus position, just
The focusing time that will lead to certain projection devices is very long.
In order to reduce focusing time, focusing efficiency is improved, inventor passes through a series of technologies for having researched and proposed the application
Scheme by counting the time assessment data to indicate focusing time, and then is commented in the embodiment of the present application based on the time
Estimate data, the baseline position of adjustable focusing power mechanism；The time assessment that baseline position is generated based on each focus operation
Data can be with dynamic change, under the premise of guaranteeing focusing successfully, by shortening baseline position and focus position, to shorten pair
The burnt time, and for each equipment, it can determine relatively suitable baseline position, realize personal settings, so that not
Focus operation can be completed within a short period of time with equipment, improve focusing efficiency.
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, those skilled in the art's every other implementation obtained without creative efforts
Example, shall fall in the protection scope of this application.
Fig. 1 is a kind of flow chart of Focusing parameter method of adjustment one embodiment provided by the embodiments of the present application, this method
May include following steps:
101: counting the time assessment data of current focus operation.
In the embodiment of the present application, the time assessment data may include that focusing number or focusing time etc. can be assessed
The characteristic of focusing time.
Wherein, in the case where step-length of focusing is constant, focusing number is more, that is, shows that focusing time is longer, therefore right
In the case that burnt step-length is constant, the time is assessed data and can be indicated using focusing number.
It is of course also possible to which directly statistics focusing time is as time assessment data.
102: data, the baseline position of adjustment focusing power mechanism are assessed based on the time.
In the embodiment of the present application, Focusing parameter is baseline position.
The initial position of baseline position can preset or can be the initial position of focusing power mechanism.
The length of current focusing time can be determined by assessing data according to the time, can adjust focusing power mechanism accordingly
Baseline position, if it is determined that focusing time is longer, illustrate baseline position and focus position distance farther out, then can increase baseline
Position allows to shorten the distance between baseline position and focus position and shortens focusing time when focus operation next time.
Wherein, baseline position can be indicated at a distance from focus position interval using the step number at interval.
Wherein, the baseline position after adjusting is used to control the behaviour of focusing next time of the focusing power mechanism
Make, namely controls burnt power mechanism and execute focus operation next time based on the baseline position after adjustment.
In the embodiment of the present application, baseline position is adjusted by dynamic, to find suitable baseline position, thus based on adjustment
Baseline position later executes focus operation, allows to shorten focusing time, improves focusing efficiency.
Alternatively, if focused, the focusing step-length that power mechanism rotates each time is constant, and the time comments
Estimating data can be using focusing number；
Therefore, in certain embodiments, described to be based on the Focusing parameter, the baseline position of adjustment focusing power mechanism can
To include:
If the focusing number is greater than or equal to the first frequency threshold value, increase baseline value.
Wherein, the baseline value turns to step-length needed for baseline position from initial position for the focusing power mechanism.
If step-length of focusing is constant, focusing power mechanism rotation is primary to spend the time identical, and therefore, focusing number is more,
Show that focusing time is longer.Therefore can based on focusing number number come determine whether adjust baseline value.
In the present embodiment, if focusing number is greater than or equal to the first frequency threshold value, show that focusing time is longer, quasi- coke position
Set apart from each other with baseline position, therefore adjustable baseline position is to shorten the spacing of focus position and baseline position.
Wherein, due to baseline position and focus position be with respect to focusing power mechanism initial position and determination,
Therefore when focus position is constant, baseline value is bigger, baseline position i.e. can further away from initial position, and closer to focus position,
Therefore the adjustment to baseline position can be thus achieved by increasing baseline value, realizes the spacing for shortening focus position and baseline position
Purpose.
Further, since the focus position of projection device is different, and usual projector distance is bigger under different projector distances, it is quasi- burnt
It position can be closer to initial position.If under a certain projector distance, adjustment by multiple focus operation to baseline position, so that
Baseline position is more and more far away from initial position, at this time if projector distance is elongated, so that focus position changes, it may
The spacing for bright baseline position and focus position occur is too small or even the case where focus position is less than baseline position, to occur pair
The case where burnt inaccuracy or focusing failure.
Therefore, in certain embodiments, the method can also include:
If the focusing number is less than or equal to the second frequency threshold value, reduce the baseline value.
That is, focusing number is smaller, it is possible to show that the spacing of baseline position and focus position is smaller or baseline position
Greater than focus position, it may result in focusing inaccuracy or focusing failure, baseline value can be reduced, at this time to increase baseline
The spacing of position and focus position, so that baseline position is focused successfully closer to initial position with guarantee with respect to focus position
Rate.
Wherein, the second frequency threshold value can be less than or equal to first frequency threshold value.
In a practical application, projection device is the Repetitive controller coke power mechanism rotation focusing since baseline position
It, can be by camera acquired projections image, if currently acquiring the projected image obtained when step-length is once to be focused
Clarity is less than the clarity for the projected image that preceding one acquisition obtains, then controls opposite direction and rotate the focusing step-length, to return
Focus position is retreated to, focus operation is terminated.At this point, the case where being greater than focus position if there is baseline position, 1 i.e. meeting of focusing
Terminate focus operation, when can be confirmed that focusing number is 1, i.e., can focus and fail, expression can not find focus position.Therefore, exist
In some embodiments, which can specifically be 1.
Wherein, the first frequency threshold value can be set in conjunction with actual conditions, such as first frequency threshold value can be 6,
If number of focusing is greater than or equal to 6 times, it can think that focusing time is long, can be adjusted to baseline position income.
Optionally, in certain embodiments, which can be greater than second frequency threshold value, therefore, described
Method can also include:
If the focusing number keeps current baseline value not less than the first frequency threshold value and when being greater than the second frequency threshold value
Become.
In addition, can be greater than 0 in order to improve focusing efficiency by baseline value, guarantee that baseline position is different from initial position, because
This, in certain embodiments, if the focusing number is less than or equal to the second frequency threshold value, reducing the baseline value can
To include:
If the focusing number is less than or equal to the second frequency threshold value, reducing the baseline value includes:
If the focusing number is less than or equal to the second frequency threshold value, judge whether the baseline value is less than pre-determined lower limit
Value；
If so, keeping the baseline value constant；
If not, reducing the baseline value.
Namely it can reduce baseline value, but be the need to ensure that baseline value is greater than or equal to preset lower limit value.
Wherein, which can be for 0.
In addition, increasing baseline value can execute according to preset incremental value and increase operation.Also i.e. by incremental value
It is added on current baseline value, with the baseline value after being increased.
Certainly, incremental value can also be obtained by calculating, therefore the increase baseline value may include:
The product that the focusing number subtracts difference and focusing step-length that first frequency threshold value obtains is calculated, is passed
Increase numerical value；
Based on the incremental value, increase the baseline value.
By taking the first frequency threshold value is 6 as an example, focusing number is 8, and for focusing step-length is 3, current baseline value is 3, then
Incremental value is (8-6) * 3=6, then the baseline value after increasing is 3+6=9.
In addition, reducing baseline value can execute according to preset decreasing values, also decreasing values are superimposed to and are worked as
On preceding baseline value, with the baseline value after being reduced, such as the decreasing values are 9, and current baseline value 3 then reduces it
Baseline value afterwards is 9-3=6.
As another optional way, the time assessment data can use focusing time, and focusing time can pass through
Timer is in focusing power mechanism timing since when baseline position starts turning, naturally it is also possible to according to focusing number and right
Burnt power mechanism is every to rotate the time calculating acquisition once spent.
Described to assess data based on the time, the baseline position of adjustment focusing power mechanism may include:
If the focusing time is greater than or equal to first time threshold, increase baseline value；Wherein, the baseline value is institute
It states focusing power mechanism and turns to step-length needed for baseline position from initial position
In addition, in certain embodiments, the method can also include:
If the focusing time is less than or equal to second time threshold, reduce the baseline value.
The second time threshold can rotate the time once spent for focusing power mechanism.
It is alternatively possible to be based on preset incremental value, increase baseline value；And it can be passed based on preset
Subtrahend value reduces baseline value.
Wherein, step number needed for the every rotation of focusing power mechanism is primary is focusing step-length, which can preset,
To guarantee accurately obtain focus position.
If focusing time is longer, show that baseline position is apart from each other with focus position, therefore in certain embodiments, institute
The method of stating can also include:
Based on the focusing time, the focusing step-length of adjustment focusing power mechanism；
Wherein, the focus operation next time that the focusing step-length after adjusting is used to control the focusing power mechanism is pressed
It rotates according to the focusing step-length after adjustment once to be focused.
Optionally, it is based on the focusing time, the focusing step-length of adjustment focusing power mechanism may include:
If focusing time is greater than or equal to third time threshold, increase focusing step-length, to reduce focusing power mechanism
Number of revolutions, to improve the performance of focusing power mechanism.
Fig. 2 is a kind of flow chart of Atomatic focusing method one embodiment provided by the embodiments of the present application, and this method can be with
Including the following steps:
201: control focusing power mechanism is rotated since baseline position, is thrown until the clarity of projected image meets
Shadow requirement.
It is alternatively possible to which control focusing power mechanism turns to baseline position first；
Focusing power mechanism described in Repetitive controller is primary according to focusing step-length rotation, until the clarity of projected image meets
Projection requirements.
In order to guarantee efficiency of focusing, optionally, control focusing power mechanism turns to baseline position and may include:
It controls the focusing power mechanism and is reset to initial position；
It controls the focusing power mechanism and turns to baseline position from the initial position.
Wherein it is possible to be in response to control the focusing power mechanism when focusing request and be reset to initial position.
Optionally, focusing request can be generation when projection device receives projection request.
As a kind of possible implementation, the initial position of baseline position can be the initial position, certainly
It can be the preset and predetermined step number of starting position interval (or preset distance) any position.
202: counting the time assessment data of current focus operation.
203: data being assessed based on the time, adjust the baseline position；
Wherein, the baseline position after adjusting is used to control the focus operation next time of the focusing power mechanism.
The operation of step 202~step 203 may refer to Focusing parameter method of adjustment described in above-described embodiment.
In the embodiment of the present application, focus operation of every execution, it can data are assessed based on the time that statistics obtains, it is right
Baseline position is adjusted so that next time focus operation when can be controlled according to the baseline position after adjustment pair
The rotation of burnt power mechanism, allow next time focus operation optimize focusing time, can not only guarantee to focus efficiency but also can be with
Guarantee is focused successfully.
Alternatively, the time assessment data may include focusing number；
Described to be based on the focusing number, adjusting the baseline position may include:
If the focusing number is greater than or equal to first threshold, increase baseline value；Wherein, the baseline value is described right
Burnt power mechanism turns to step-length needed for baseline position from initial position；
Exist in some embodiments, the method can also include:
If the focusing number is less than or equal to second threshold, reduce the baseline value.
Optionally, if the focusing number is less than or equal to second threshold, reducing the baseline value may include:
If the focusing number is less than or equal to second threshold, reducing the baseline value includes:
If the focusing number is less than or equal to second threshold, judge whether the baseline value is less than or equal to pre- set
Limit value；
If so, keeping the baseline value constant；
If not, reducing the baseline value.
In certain embodiments, the increase baseline value may include:
The product that the focusing number subtracts difference and focusing step-length that the first threshold obtains is calculated, obtains and is incremented by number
Value；
Based on the incremental value, increase the baseline value.
In certain embodiments, the reduction baseline value may include:
Based on preset decreasing values, the baseline value is reduced.
As another optional way, the time assessment packet includes focusing time；
Described to assess data based on the time, the baseline position of adjustment focusing power mechanism may include:
If the focusing time is greater than or equal to first time threshold, increase baseline value；Wherein, the baseline value is institute
It states focusing power mechanism and turns to step-length needed for baseline position from initial position
In certain embodiments, the method can also include:
If the focusing time is less than or equal to second time threshold, reduce the baseline value.
Wherein, if focusing time is longer, show that baseline position is apart from each other with focus position, therefore in some embodiments
In, the method can also include:
Based on the focusing time, the focusing step-length of adjustment focusing power mechanism；
Wherein, the focus operation next time that the focusing step-length after adjusting is used to control the focusing power mechanism is pressed
It rotates according to the focusing step-length after adjustment once to be focused.
Optionally, it is based on the focusing time, the focusing step-length of adjustment focusing power mechanism may include:
If focusing time is greater than or equal to third time threshold, increase focusing step-length, to reduce focusing power mechanism
Number of revolutions, to improve the performance of focusing power mechanism.
Wherein, judge projected image whether meet projection requirements can there are many implementation, alternatively,
Can be by camera acquired projections image in projection device, and the clarity of projected image is analyzed, to determine projected image
Clarity meet projection requirements；
Therefore, in certain embodiments, focusing power mechanism described in the Repetitive controller is primary according to focusing step-length rotation,
Include: up to the clarity of projected image meets projection requirements
It is primary according to focusing step-length rotation along focusing direction to control the focusing power mechanism；
Acquired projections image, and calculate the clarity for the projected image that current acquisition obtains；
Whether the clarity for the projected image that the current acquisition of judgement obtains is greater than the projected image that preceding one acquisition obtains
Clarity；
It is rotated once if so, returning to the execution focusing power mechanism edge focusing direction that controls according to focusing step-length
The step of；
If not, opposite direction of the control focusing power mechanism along the focusing direction turns according to the focusing step-length
It is dynamic primary, to retract to focus position.
Wherein, focusing power mechanism can be with from the clarity that baseline position rotation once acquires the projected image obtained later
The clarity that the projected image obtained is acquired after turning to baseline position with focusing power mechanism is compared.
Namely focusing power mechanism turns to and acquires the clarity of the projected image obtained after baseline position and can be used as
Initial reference value, focusing power mechanism can have from the clarity that baseline position rotation once acquires the projected image obtained later
Body is compared with the initial reference value.
Wherein, focusing direction is the rotation direction of focusing power mechanism, and focusing step-length is the every rotation of power mechanism of focusing
Primary step number used.The focusing step-length can be preset.
According to above-mentioned projection requirements, it is, if focusing number is 1, to show that focusing is dynamic when focusing number that the time, which assesses data,
Force mechanisms only rotate primary i.e. progress rollback operation, and retract to baseline position, show focusing failure at this time.
Therefore, in certain embodiments, opposite direction of the control focusing power mechanism along the focusing direction
It is primary according to focusing step-length rotation, may include: to focus position to retract
If the focusing number is greater than the second frequency threshold value, the focusing power mechanism is controlled along the focusing direction
Opposite direction rotates once according to the focusing step-length, to retract to focus position.
Namely if it is dynamic to control the focusing less than the first frequency threshold value, and when being greater than the second frequency threshold value for burnt number
Opposite direction of the force mechanisms along the focusing direction rotates once according to the focusing step-length, to retract to focus position；Otherwise
Focusing failure prompt information etc. can be exported.
Certainly alternatively, described to be based on the focusing number, after adjusting the baseline position, if institute
It states focusing number and is less than or equal to second frequency threshold value, the control focusing power mechanism can be returned and turn to baseline position
The step of setting re-executes.Since baseline position has been updated, can guarantee to look for by re-executing auto-focusing operation
To focus position, to improve focusing success rate.
In a practical application, focusing power mechanism can be motor (also known as motor or stepper), the application
The technical solution of embodiment can be adapted for projection device, realizes auto-focusing when projection, is with power mechanism of focusing below
Motor, time assess data by taking number of focusing as an example, the technical solution of the application are described in detail.
Fig. 3 is a kind of flow chart of another embodiment of Atomatic focusing method provided by the embodiments of the present application, and this method can
With including the following steps:
301: control motor is reset to initial position.
It is alternatively possible to be when receiving focusing request, control motor is reset to initial position.
Focusing request can be to be generated when receiving projection request.Projection request can be user's triggering.
302: control motor turns to baseline position.
303: acquired projections image, and calculate the clarity of the projected image.
Motor turns to after baseline position, can acquired projections image first, and record the clarity of projected image, with
Facilitate subsequent judgement.
304: control motor is primary according to focusing step-length rotation along focusing direction.
Wherein, which presets, and in the present embodiment, which can be fixed.
305: acquired projections image, and calculate the clarity of the projected image.
306: whether the clarity for the projected image that the current acquisition of judgement obtains is greater than the perspective view that preceding one acquisition obtains
The clarity of picture, if so, step 307 is executed, if not, executing step 308.
During motor is started turning from baseline position, the clarity of projected image can be from obscuring to clearly again to fuzzy
Process shows that motor shortly past focus position, can control accordingly when the clarity that clarity once obtains before being lower than
Motor rotation.
307: accumulative focusing number, and return step 304 continues to execute.
308: judging whether focusing number is greater than the second frequency threshold value, if so, executing step 309；If not, executing step
Rapid 312.
309: judge whether focusing number is greater than or equal to the first frequency threshold value, if so, step 310 and 311 is executed,
If not, executing step 311.
310: increasing baseline value.
By increasing baseline value, baseline position can be updated.
311: opposite direction of the control motor along the focusing direction rotates once according to the focusing step-length, to retract extremely
Focus position.
312: reducing baseline value, and return step 302 continues to execute.
Wherein, which can be specially 1.
Namely motor only rotates 1 time, the clarity of projected image declines, namely obtained lower than acquisition at baseline position
The clarity of projected image shows that focus position is less than baseline position at this time, and focusing failure can reduce baseline value at this time, and
An auto-focusing operation is re-executed, since baseline position has updated, it can be ensured that focus successfully.
By the embodiment of the present application, either projector distance variation or hardware device difference itself, any one projection is set
Standby to pass through after multiple focus operation, baseline position can be in a relatively suitable position, guarantee successful premise of focusing
Under, it is ensured that focusing time is as short as possible, to improve focusing efficiency.
Fig. 4 is the structural schematic diagram that a kind of Focusing parameter provided by the embodiments of the present application adjusts device one embodiment, should
Device may include:
Statistical module 401, the time for counting current focus operation assess data；
Module 402 is adjusted, for assessing data, the baseline position of adjustment focusing power mechanism based on the time；
Wherein, the baseline position after adjusting is used to control the focus operation next time of the focusing power mechanism.
In the embodiment of the present application, baseline position is adjusted by dynamic, to find suitable baseline position, thus based on adjustment
Baseline position later executes focus operation, allows to shorten focusing time, improves focusing efficiency.
Alternatively, the time assessment packet includes focusing number；
Adjustment module 402 can be specifically used for: if the focusing number is greater than or equal to the first frequency threshold value, increase base
Line value；Wherein, the baseline value turns to step-length needed for baseline position from initial position for the focusing power mechanism.
In certain embodiments, if the adjustment module 402 can be also used for the focusing number and be less than or equal to the
Two frequency threshold values reduce the baseline value.
Optionally, if the focusing number of the adjustment module 402 is less than or equal to the second frequency threshold value, described in reduction
Baseline value can be specifically:
If the focusing number is less than or equal to the second frequency threshold value, reducing the baseline value includes:
If the focusing number is less than or equal to the second frequency threshold value, judge whether the baseline value is less than pre-determined lower limit
Value；
If so, keeping the baseline value constant；
If not, reducing the baseline value.
Wherein, optionally, it can be specifically to calculate the focusing number to subtract institute that the adjustment module 402, which increases baseline value,
The product for stating difference and focusing step-length that the first frequency threshold value obtains, obtains incremental value；Based on the incremental value, increase institute
State baseline value.
It can be specifically to reduce the base based on preset decreasing values that the adjustment module 402, which reduces the baseline value,
Line value.
As another optional way, the time assessment data may include focusing time；
If the adjustment module 402 can be specifically used for the focusing time and be greater than or equal to first time threshold, increase
Add baseline value；Wherein, the baseline value turns to step-length needed for baseline position from initial position for the focusing power mechanism
In addition, in certain embodiments, if the adjustment module 402 can be also used for the focusing time and be less than or wait
In second time threshold, reduce the baseline value.
In addition, in certain embodiments, the adjustment module 402 can be also used for based on the focusing time, adjustment pair
The focusing step-length of burnt power mechanism；
Wherein, the focus operation next time that the focusing step-length after adjusting is used to control the focusing power mechanism is pressed
It rotates according to the focusing step-length after adjustment once to be focused.
In a possible design, Focusing parameter adjustment device can be configured in electronic equipment, can integrate
A function into the processing component of electronic equipment may be implemented as processing component, naturally it is also possible to as stand-alone assembly
It is connect with processing component.
The electronic equipment for example can be projection device, which can be various projectors, or have projection
The smart machines such as mobile phone, tablet computer, notebook, the personal computer of function.
For the Focusing parameter adjustment device in above-described embodiment, wherein modules, unit execute the concrete mode operated
It is described in detail in the embodiment of the method, no detailed explanation will be given here.
Fig. 5 is a kind of structural schematic diagram of automatic focusing mechanism one embodiment provided by the embodiments of the present application, the device
May include:
Focusing module 501 is rotated since baseline position for controlling focusing power mechanism, until projected image
Clarity meets projection requirements.
Optionally, Focusing module can turn to baseline position specifically for control focusing power mechanism；
Focusing power mechanism described in Repetitive controller is primary according to focusing step-length rotation, until the clarity of projected image meets
Projection requirements.
Wherein, it may include: the control focusing power that Focusing module control focusing power mechanism, which turns to baseline position,
Reset is to initial position；And the control focusing power mechanism turns to baseline position from the initial position.
Wherein, focusing power mechanism described in Focusing module Repetitive controller is primary according to focusing step-length rotation, until perspective view
The clarity of picture meets projection requirements
It is primary according to focusing step-length rotation along focusing direction to control the focusing power mechanism；
Acquired projections image, and calculate the clarity of the projected image；
Whether the clarity for the projected image that the current acquisition of judgement obtains is greater than the projected image that preceding one acquisition obtains
Clarity；
It is rotated once if so, returning to the execution focusing power mechanism edge focusing direction that controls according to focusing step-length
The step of；
If not, opposite direction of the control focusing power mechanism along the focusing direction turns according to the focusing step-length
It is dynamic primary, to retract to focus position.
Statistical module 502, the time for counting current focus operation assess data；
Wherein, adjustment module can be greater than preceding one acquisition in the clarity for the projected image for determining current acquisition acquisition and obtain
After the clarity of the projected image obtained, i.e. triggering statistical module is once calculated, with accumulative focusing number.
Module 503 is adjusted, for assessing data based on the time, adjusts the baseline position；
Wherein, the baseline position after adjusting is used to control the focus operation next time of the focusing power mechanism.
In the embodiment of the present application, focus operation of every execution, it can data are assessed based on the time that statistics obtains, it is right
Baseline position is adjusted so that next time focus operation when can be controlled according to the baseline position after adjustment pair
The rotation of burnt power mechanism, allow next time focus operation optimize focusing time, can not only guarantee to focus efficiency but also can be with
Guarantee is focused successfully.
Wherein, the functions of modules of statistical module 502 may refer to the correlation of the statistical module 401 in embodiment illustrated in fig. 4
The functions of modules of description, adjustment module 503 may refer to the associated description of the adjustment module 402 in embodiment illustrated in fig. 4.
Alternatively, the time assessment packet includes focusing number；
The adjustment module 503 can be specifically used for: if the focusing number is greater than or equal to the first frequency threshold value, increase
Add baseline value；Wherein, the baseline value turns to step-length needed for baseline position from initial position for the focusing power mechanism.
In certain embodiments, if the adjustment module 503 can be also used for the focusing number and be less than or equal to the
Two frequency threshold values reduce the baseline value.
Optionally, if the focusing number of the adjustment module 503 is less than or equal to the second frequency threshold value, described in reduction
Baseline value can be specifically:
If the focusing number is less than or equal to the second frequency threshold value, reducing the baseline value includes:
If the focusing number is less than or equal to the second frequency threshold value, judge whether the baseline value is less than pre-determined lower limit
Value；
If so, keeping the baseline value constant；
If not, reducing the baseline value.
Wherein, optionally, it can be specifically to calculate the focusing number to subtract institute that the adjustment module 503, which increases baseline value,
The product for stating difference and focusing step-length that the first frequency threshold value obtains, obtains incremental value；Based on the incremental value, increase institute
State baseline value.
It can be specifically to reduce the base based on preset decreasing values that the adjustment module 503, which reduces the baseline value,
Line value.
As another optional way, the time assessment data may include focusing time；
If the adjustment module 503 can be specifically used for the focusing time and be greater than or equal to first time threshold, increase
Add baseline value；Wherein, the baseline value turns to step-length needed for baseline position from initial position for the focusing power mechanism.
In addition, in certain embodiments, if the adjustment module 503 can be also used for the focusing time and be less than or wait
In second time threshold, reduce the baseline value.
In addition, in certain embodiments, the adjustment module 503 can be also used for based on the focusing time, adjustment pair
The focusing step-length of burnt power mechanism；
Wherein, the focus operation next time that the focusing step-length after adjusting is used to control the focusing power mechanism is pressed
It rotates according to the focusing step-length after adjustment once to be focused.
In certain embodiments, adjustment module 503 controls the focusing power mechanism along the phase negative side in the focusing direction
It is primary to being rotated according to the focusing step-length, can be specifically to focus position to retract:
If the focusing number is greater than the second frequency threshold value, the focusing power mechanism is controlled along the focusing direction
Opposite direction rotates once according to the focusing step-length, to retract to focus position.
At this point, described device can also include:
Trigger module is based on the focusing number for the adjustment module, after adjusting the Focusing parameter, if institute
It states focusing number and is less than or equal to second frequency threshold value, trigger the Focusing module and execute, to re-execute primary focusing
Operation.
In a possible design, which can be configured in electronic equipment, be desirably integrated into electricity
A function in the processing component of sub- equipment may be implemented as processing component, naturally it is also possible to as stand-alone assembly and place
Manage component connection.
The electronic equipment for example can be projection device.The projection device can be various projectors, or have projection
The smart machines such as mobile phone, tablet computer, notebook, the personal computer of function.
For the automatic focusing mechanism in above-described embodiment, wherein modules, unit have executed the concrete mode of operation
It is described in detail in the embodiment of the method, no detailed explanation will be given here.
The embodiment of the present application also provides a kind of electronic equipment, and as shown in Figure 6, which may include processing group
Part 601, the focusing power mechanism 602 being separately connected with the processing component 601 and storage assembly 603；
The storage assembly 603 stores one or more computer program instructions；
One or more computer instruction is called for the processing component 601 and is executed.
The processing component 601 is used for:
It controls the focusing power mechanism 602 to be rotated since baseline position, until the clarity of projected image is full
Sufficient projection requirements；
Count the time assessment data of current focus operation；
Data are assessed based on the time, adjust the baseline position；
Wherein, the baseline position after adjusting is used to control the focus operation next time of the focusing power mechanism.
Wherein, which can be specially motor.
Processing component 601 may include that one or more processors carry out computer instructions, to complete above-mentioned method
In all or part of the steps.Certain processing component may be one or more application specific integrated circuit (ASIC), number
Signal processor (DSP), digital signal processing appts (DSPD), programmable logic device (PLD), field programmable gate array
(FPGA), controller, microcontroller, microprocessor or other electronic components are realized, for executing the above method.
Storage assembly 603 is configured as storing various types of data to support the operation in electronic equipment.Memory can
By any kind of volatibility or non-volatile memory device or their combination realization, such as static random access memory
(SRAM), electrically erasable programmable read-only memory (EEPROM), Erasable Programmable Read Only Memory EPROM (EPROM) may be programmed
Read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, disk or CD.
In a practical application, which can be projection device, therefore as shown in Figure 7, the electronic equipment
It can also include lens assembly 604, by image projection into projection screen.
In addition, the electronic equipment can also include camera assembly 605, with acquired projections image；Processing component 601 can root
Determine whether to meet projection requirements etc. according to the clarity of projected image.
Certainly, electronic equipment necessarily can also include some other necessary parts, such as display component as projection device
To show image to be projected；Communication part, it is same as the prior art to be communicated etc. with external equipment, it is no longer superfluous herein
It states.
It when electronic equipment is projection device, can be various projectors, or have the mobile phone of projecting function, plate electricity
The smart machines such as brain, notebook, personal computer.
The embodiment of the present application also provides a kind of computer readable storage mediums, are stored with computer program, the calculating
The Focusing parameter method of adjustment of above-mentioned embodiment illustrated in fig. 1 may be implemented in machine program when being computer-executed.
The embodiment of the present application also provides a kind of computer readable storage mediums, are stored with computer program, the calculating
The Focusing parameter method of adjustment of above-mentioned Fig. 2 or embodiment illustrated in fig. 3 may be implemented in machine program when being computer-executed.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although
The application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (25)
1. a kind of Focusing parameter method of adjustment characterized by comprising
Count the time assessment data of current focus operation；
Data, the baseline position of adjustment focusing power mechanism are assessed based on the time；
Wherein, the baseline position after adjusting is used to control the focus operation next time of the focusing power mechanism.
2. the method according to claim 1, wherein the time assessment packet includes focusing number；
Described to assess data based on the time, the baseline position of adjustment focusing power mechanism includes:
If the focusing number is greater than or equal to the first frequency threshold value, increase baseline value；Wherein, the baseline value is described right
Burnt power mechanism turns to step-length needed for baseline position from initial position.
3. according to the method described in claim 2, it is characterized by further comprising:
If the focusing number is less than or equal to the second frequency threshold value, reduce the baseline value.
4. if according to the method described in claim 2, it is characterized in that, the focusing number is less than or equal to second
Number threshold value, reducing the baseline value includes:
If the focusing number is less than or equal to the second frequency threshold value, reducing the baseline value includes:
If the focusing number is less than or equal to the second frequency threshold value, judge whether the baseline value is less than preset lower limit value；
If so, keeping the baseline value constant；
If not, reducing the baseline value.
5. according to the method described in claim 2, it is characterized in that, the increase baseline value includes:
The product that the focusing number subtracts difference and focusing step-length that first frequency threshold value obtains is calculated, obtains and is incremented by number
Value；
Based on the incremental value, increase the baseline value.
6. the method according to claim 3 or 4, which is characterized in that described to reduce the baseline value and include:
Based on preset decreasing values, the baseline value is reduced.
7. the method according to claim 1, wherein the time assessment packet includes focusing time；
Described to assess data based on the time, the baseline position of adjustment focusing power mechanism includes:
If the focusing time is greater than or equal to first time threshold, increase baseline value；Wherein, the baseline value is described right
Burnt power mechanism turns to step-length needed for baseline position from initial position.
8. the method according to the description of claim 7 is characterized in that further include:
If the focusing time is less than or equal to second time threshold, reduce the baseline value.
9. method according to claim 7 or 8, which is characterized in that further include:
Based on the focusing time, the focusing step-length of adjustment focusing power mechanism；
Wherein, when the focusing step-length after adjusting is for focus operation next time, control the focusing power mechanism according to
Focusing step-length rotation after adjustment.
10. a kind of Atomatic focusing method characterized by comprising
Control focusing power mechanism is rotated since baseline position, until the clarity of projected image meets projection requirements；
Count the time assessment data of current focus operation；
Data are assessed based on the time, adjust the baseline position；
Wherein, the baseline position after adjusting is used to control the focus operation next time of the focusing power mechanism.
11. according to the method described in claim 10, power mechanism is since baseline position it is characterized in that, the control is focused
It is rotated, includes: up to the clarity of projected image meets projection requirements
Control focusing power mechanism turns to baseline position；
Focusing power mechanism described in Repetitive controller is primary according to focusing step-length rotation, until the clarity of projected image meets projection
It is required that.
12. according to the method described in claim 10, it is characterized in that, the time assessment packet includes focusing number；
Described to be based on the focusing number, adjusting the baseline position includes:
If the focusing number is greater than or equal to first threshold, increase baseline value；Wherein, the baseline value is that the focusing is dynamic
Force mechanisms turn to step-length needed for baseline position from initial position.
13. according to the method for claim 12, which is characterized in that further include:
If the focusing number is less than or equal to second threshold, reduce the baseline value.
14. according to the method for claim 13, which is characterized in that if the focusing number is less than or equal to second
Threshold value, reducing the baseline value includes:
If the focusing number is less than or equal to second threshold, reducing the baseline value includes:
If the focusing number is less than or equal to second threshold, judge whether the baseline value is less than or equal to pre-determined lower limit
Value；
If so, keeping the baseline value constant；
If not, reducing the baseline value.
15. according to the method for claim 12, which is characterized in that the increase baseline value includes:
The product that the focusing number subtracts difference and focusing step-length that the first threshold obtains is calculated, incremental value is obtained；
Based on the incremental value, increase the baseline value.
16. method described in 3 or 14 according to claim 1, which is characterized in that described to reduce the baseline value and include:
Based on preset decreasing values, the baseline value is reduced.
17. according to the method described in claim 10, it is characterized in that, the time assessment packet includes focusing time；
Described to assess data based on the time, the baseline position of adjustment focusing power mechanism includes:
If the focusing time is greater than or equal to first time threshold, increase baseline value；Wherein, the baseline value is described right
Burnt power mechanism turns to step-length needed for baseline position from initial position.
18. according to the method for claim 17, which is characterized in that further include:
If the focusing time is less than or equal to second time threshold, reduce the baseline value.
19. according to the method for claim 11, which is characterized in that the control focusing power mechanism turns to baseline
Position includes:
It controls the focusing power mechanism and is reset to initial position；
It controls the focusing power mechanism and turns to baseline position from the initial position.
20. according to the method for claim 11, which is characterized in that focusing power mechanism is according to right described in the Repetitive controller
Burnt step-length rotation is primary, includes: up to the clarity of projected image meets projection requirements
It is primary according to focusing step-length rotation along focusing direction to control the focusing power mechanism；
Acquired projections image, and calculate the clarity of the projected image；
Whether the clarity for the projected image that the current acquisition of judgement obtains is greater than the clear of the projected image that preceding one acquisition obtains
Degree；
Primary step is rotated according to focusing step-length along focusing direction if so, returning and executing the control focusing power mechanism
Suddenly；
If not, opposite direction of the control focusing power mechanism along the focusing direction rotates one according to the focusing step-length
It is secondary, to retract to focus position.
21. according to the method for claim 20, which is characterized in that the control focusing power mechanism is along the focusing
The opposite direction in direction rotates once according to the focusing step-length, includes: to focus position to retract
If the focusing number is greater than the second frequency threshold value, the focusing power mechanism is controlled along the opposite of the focusing direction
Direction rotates once according to the focusing step-length, to retract to focus position.
22. according to the method for claim 21, which is characterized in that it is described to be based on the focusing number, adjust the focusing
After parameter, the method also includes:
If the focusing number is less than or equal to second frequency threshold value, returns to the control focusing power mechanism and turn to
The step of baseline position, re-executes.
23. a kind of Focusing parameter adjusts device characterized by comprising
Statistical module, the time for counting current focus operation assess data；
Module is adjusted, for assessing data, the baseline position of adjustment focusing power mechanism based on the time；
Wherein, the baseline position after adjusting is used to control the focus operation next time of the focusing power mechanism.
24. a kind of automatic focusing mechanism characterized by comprising
Focusing module is rotated for controlling focusing power mechanism since baseline position, until the clarity of projected image
Meet projection requirements；
Statistical module, the time for counting current focus operation assess data；
Module is adjusted, for assessing data based on the time, adjusts the baseline position；
Wherein, the baseline position after adjusting is used to control the focus operation next time of the focusing power mechanism.
25. a kind of electronic equipment, which is characterized in that including processing component, the processing component connect focusing power mechanism with
And storage assembly；
The storage assembly stores one or more computer program instructions；One or more computer instruction supplies the place
Component call is managed to execute.
The processing component is used for:
It controls the focusing power mechanism to be rotated since baseline position, until the clarity of projected image meets projection and wants
It asks；
Count the time assessment data of current focus operation；
Data are assessed based on the time, adjust the baseline position；
Wherein, the baseline position after adjusting is used to control the focus operation next time of the focusing power mechanism.
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