CN105847690A - Method for switching photographing modes and camera - Google Patents
Method for switching photographing modes and camera Download PDFInfo
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- CN105847690A CN105847690A CN201610221517.2A CN201610221517A CN105847690A CN 105847690 A CN105847690 A CN 105847690A CN 201610221517 A CN201610221517 A CN 201610221517A CN 105847690 A CN105847690 A CN 105847690A
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- illuminance
- scope
- photograph mode
- video camera
- effective
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/667—Camera operation mode switching, e.g. between still and video, sport and normal or high- and low-resolution modes
Abstract
The invention relates to a method for switching photographing modes and a camera with the object of effectively and accurately switching photographing modes. The method is carried out by a camera under a first photographing mode, which can either be a colored photographing mode or a black-and-white photographing mode. The method comprises the following steps: acquiring a first illuminance at a first time; determining whether the first illuminance is effective illuminance or not; if the first illuminance is effective illuminance, determining further whether the first illuminance is within the scope of a second illuminance of a second photographing mode wherein the second photographing mode is either a colored photographing mode or a black-and-white photographing mode that differs from the one adopted by the first photographing mode; and if the first illuminance is within the scope of the second illuminance of the second photographing mode, switching to the second photographing mode.
Description
Technical field
The present invention relates to electronic technology field, particularly to a kind of method switching photograph mode and video camera.
Background technology
Can be affected by non-visible light and be produced colour cast during video camera imaging by day, need image is carried out
Colour turns the process of black and white.Otherwise, it is as dark as a stack of black cats because infrared ray is filtered during video camera imaging at night,
Need to carry out the process that black and white turns colored.
Due to outdoor or the difference of indoor scene, the difference of intensity of illumination, common camera needs technical staff
Colour is set according to site environment and turns black and white startup relevant parameter.Arrange the sensitiveest, outside if colour turns black and white
In the case of boundary's illuminance change frequently, colour turns black and white and will frequently switch；Arrange not if colour turns black and white
Sensitive, when conversion, the image blackout time is the longest.Therefore, prior art lacks effective switching machine
System.
Summary of the invention
The application provides a kind of method switching photograph mode and video camera, to provide one effectively, accurately
Photograph mode handover mechanism.
First aspect, the embodiment of the present invention provides a kind of method switching photograph mode, and described method is by being in
The video camera of the first photograph mode performs, and described first photograph mode is colour phhotograpy pattern and black-and-white photography mould
Any one in formula, described method includes:
In the first moment, it is thus achieved that the first illuminance；
Judge whether described first illuminance is effective illuminance；
If described first illuminance is effective illuminance, then judge that whether described first illuminance is in the second photography
Within the scope of second illuminance of pattern, described second photograph mode is described colour phhotograpy pattern and described black
White photograph mode is different from the another kind of described first photograph mode；
The most then switch to described second photograph mode.
In the implementation that some are possible, it is judged that whether described first illuminance is effective illuminance, including:
Obtain multiple illuminance in the range of preset duration before described first moment；
Obtain in the plurality of illuminance the illuminance between each illuminance and described first illuminance poor, obtain
Obtain multiple illuminance poor；
Judge whether described first illuminance is effective illuminance based on the plurality of illuminance difference.
In the implementation that some are possible, judge described first illuminance be whether effective illuminance it
After, described method also includes:
If described first illuminance is effective illuminance, take the photograph described first according to described first illuminance
The first illuminance scope and described second illuminance scope that shadow pattern is corresponding are updated.
In the implementation that some are possible, according to described first illuminance to described first photograph mode
The first corresponding illuminance scope and described second illuminance scope are updated, including:
Described first illuminance is added illuminance database；
Illuminance expectation is calculated according to the database after updating, and with the expectation of new described illuminance updates described the
One illuminance scope and described second illuminance scope.
In the implementation that some are possible, it is thus achieved that the first illuminance, including:
Obtain optical parametric by sensor, and determine described first illuminance according to described optical parametric.
Second aspect, the embodiment of the present invention provides a kind of video camera, including:
Obtain unit, for obtaining the first illuminance in the first moment；
First judging unit, is used for judging whether described first illuminance is effective illuminance；
At described first judging unit, second judging unit, for determining that described first illuminance is effective illumination
When spending, it is judged that whether described first illuminance is within the scope of the second illuminance of the second photograph mode；Wherein,
The current photograph mode of described video camera is the first mode of operation, and described first photograph mode is colour phhotograpy mould
Any one in formula and black-and-white photography pattern, described second photograph mode is described colour phhotograpy pattern and described
Black-and-white photography pattern is different from the another kind of described first photograph mode；
At described second judging unit, switch unit, for determining that described first illuminance is in described second illumination
Time within the scope of degree, by described camera switching to described second photograph mode.
In the implementation that some are possible, described first judging unit specifically for: obtain described first
Multiple illuminance in the range of preset duration before moment；Obtain each illuminance and institute in the plurality of illuminance
State the illuminance between the first illuminance poor, it is thus achieved that multiple illuminance are poor；Sentence based on the plurality of illuminance difference
Whether disconnected described first illuminance is effective illuminance.
In the implementation that some are possible, described video camera also includes:
Updating block, for described first judging unit determine described first illuminance be effective illuminance it
After, according to described first illuminance to the first illuminance scope corresponding to described first photograph mode and
Described second illuminance scope is updated.
In the implementation that some are possible, described updating block specifically for:
Described first illuminance is added illuminance database；
Illuminance expectation is calculated according to the database after updating, and with the expectation of new described illuminance updates described the
One illuminance scope and described second illuminance scope.
In the implementation that some are possible, described acquisition unit specifically for: obtain optics by sensor
Parameter, and determine described first illuminance according to described optical parametric.
The one or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or excellent
Point:
Video camera is when being in the first mode of operation, after the first illuminance scope of acquisition, first has to checking
The validity of the first illuminance, only when the first illuminance is effective, just determines whether according to the first illuminance
Carry out the switching of photograph mode, it is to avoid cause taking the photograph because the illuminance vibration that produced by disturbance when photographing
The frequent switching of the photograph mode of camera, the switching mode of photograph mode is the most reasonable and accurate.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present application, institute in embodiment being described below
The accompanying drawing used is needed to briefly introduce, it should be apparent that, the accompanying drawing in describing below is only the present invention's
Some embodiments, from the point of view of those of ordinary skill in the art, in the premise not paying creative work
Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet switching photograph mode method in the embodiment of the present application；
Fig. 2 is another schematic flow sheet switching photograph mode method in the embodiment of the present application；
Fig. 3 is the another schematic flow sheet switching photograph mode method in the embodiment of the present application；
Fig. 4 is the structural schematic block diagram cutting video camera in the embodiment of the present application.
Detailed description of the invention
Below by accompanying drawing and specific embodiment, technical solution of the present invention is described in detail, it should be understood that
Specific features in the embodiment of the present application and embodiment is the detailed description to technical solution of the present invention, and
It not the restriction to technical solution of the present invention, in the case of not conflicting, the embodiment of the present application and embodiment
In technical characteristic can be mutually combined.
Below the part concept in the embodiment of the present invention is introduced.
Colour phhotograpy pattern, refers to when low irradiance environment is photographed, the colour tint in enhancing image
Mode of operation, is also called black and white and turns color mode.
Black-and-white photography pattern, refers to when high illuminance environment is photographed, the colour tint in minimizing image
Mode of operation, to reduce the color offset of image, is also called colour and turns white-black pattern.
First photograph mode is the one in above-mentioned colour phhotograpy pattern and black-and-white photography pattern, and the second photography
Pattern is another kind of.Such as, the first mode of operation is colour phhotograpy pattern, and the second mode of operation is that black and white is taken the photograph
Shadow pattern；Or, the first mode of operation is black-and-white photography pattern, and the second mode of operation is colour phhotograpy pattern.
(English: lux) represents and is subject on shot subject surface unit area for illuminance, also known as Lux degree
Luminous flux.1 Lux be equivalent to 1 lumen/square metre, i.e. on the area of shot subject every square metre, be subject to
Distance one meter, luminous intensity are the light source of 1 candle light, the luminous flux of vertical irradiation.Illuminance is to weigh shooting
One important indicator of environment.
In the embodiment of the present invention, illuminance can be by direct for measuring the sensor of illuminance on video camera
Measure；Illuminance can also according to video camera measurement to other optical parametrics calculate acquisition, such as, take the photograph
Camera obtains the parameter values such as current automatic gain, aperture, exposure, and calculates according to above-mentioned parameter value and work as
Front illuminance.
Effectively illuminance, refers to truly to reflect the illuminance of shooting environmental, gets rid of because of disturbance factor
The abnormal illuminance produced.Such as, during video camera transient jitter, the meeting drastic change of illuminance data, or shake
Swinging, in embodiments of the present invention, this illuminance because obtaining during video camera instant jitter is not effective illumination
Degree.
Illuminance database, for the database of the history illuminance numerical value of video camera storage.Optionally, illumination
Degrees of data storehouse can be divided into high illuminance database and low irradiance database, the most corresponding black-and-white photography mould
Formula and colour phhotograpy pattern.Optionally, video camera after the illuminance determining acquisition is effective illuminance,
This illuminance is added into illuminance database.Optionally, video camera is (English: hash) to calculate by Hash
Method is tabled look-up and is detected the illuminance data repeated, and merges it.Optionally, video camera is to this illuminance
Data in database are updated, and in addition to increasing new effective illuminance, also delete partial history light
Illumination data, such as, video camera uses recent minimum use (English: least recently used, LRU)
Algorithm or first in first out displacement (English: first input first output, FIFO) algorithm delete the illumination number of degrees
According to legacy data in storehouse.
High illuminance scope, refers to use the set of the illuminance of black-and-white photography pattern.In like manner, low light
Illumination range, refers to use the set of the illuminance of colour phhotograpy pattern.In other words, when working as of obtaining
When front illuminance is within the scope of high illuminance, video camera works based on black-and-white photography pattern；When working as of obtaining
When front illuminance is within the scope of low irradiance, video camera works based on colour phhotograpy pattern.The present invention implements
In example, above-mentioned high illuminance scope can be come according to the statistical distribution of the illuminance data of high illuminance database
Determine；In like manner, low irradiance scope can be according to the statistical distribution of the illuminance data of low irradiance database
Determine.Such as, video camera can analyze high illuminance database and low irradiance database obeys discrete type
Stochastic variable bi-distribution, calculates high illuminance data and low irradiance data respective bi-distribution phase
Prestige value, and adjust respective illuminance scope according to this desired value.
First illuminance scope is the illuminance scope corresponding with the first photograph mode, and the second illuminance scope is
The illuminance scope corresponding with the second photograph mode.Such as, it is black-and-white photography pattern at the first photograph mode,
When second photograph mode is colour phhotograpy pattern, the first illuminance scope is high illuminance scope, the second illumination
Degree scope is low irradiance scope.
In the embodiment of the present invention, video camera includes special picture pick-up device, such as digital camera；Video camera is also
Including having the electronic equipment of camera function, including: smart mobile phone, panel computer, etc..
Fig. 1 is the schematic flow sheet switching photograph mode method in the embodiment of the present invention, and the method includes as follows
Step:
Step 101: in the first moment, the video camera being in the first photograph mode obtains the first illuminance；
Step 102: video camera judges whether the first illuminance is effective illuminance；
Step 103: when the first illuminance is effective illuminance, video camera judges that whether the first illuminance exists
Within the scope of second illuminance；
Step 104: when the first illuminance is within the scope of the second illuminance, camera switching is taken the photograph to second
Shadow pattern.
Concrete, when video camera is in the first mode of operation, after the first illuminance scope of acquisition, first
First to verify the validity of the first illuminance, only when the first illuminance is effective, just according to the first illuminance
Determine whether to carry out the switching of photograph mode, it is to avoid the illuminance because being produced by disturbance when photographing is vibrated
And causing the frequent switching of the photograph mode of video camera, the switching mode of photograph mode is the most reasonable and accurate.
Optionally, in the embodiment of the present invention, with reference to Fig. 2, step 102: video camera judges the first illuminance
Whether it is effective illuminance, comprises the steps:
Step 1021: video camera obtains multiple illuminance in the range of preset duration before the first moment；
Step 1022: video camera obtains the illumination in multiple illuminance between each illuminance and the first illuminance
It is poor to spend, it is thus achieved that multiple illuminance are poor；
Step 1023: based on multiple illuminance differences, video camera judges whether the first illuminance is effective illuminance.
Concrete, video camera compares with recent illumination value according to the first current illumination value, it is judged that the first light
According to the disturbed value that value is big ups and downs, or normal effectively illumination value.
Optionally, in the embodiment of the present invention, reference such as Fig. 3, in step 102: judge that the first illuminance is
No for effective illuminance after, also comprise the steps:
Step 105: when the first illuminance is effective illuminance, video camera according to the first illuminance to first
Illuminance scope and the second illuminance scope are updated.
Concrete, video camera is after the first illumination value determining current acquisition is effective illumination value, by first
Illumination value is added into illuminance database, and carries out illuminance scope according to the illuminance database after updating
Update, it is ensured that the dynamic renewal of illuminance scope so that illuminance scope adapts to current shooting environmental.
Optionally, in the embodiment of the present invention, step 105 can perform before step 103, i.e. uses
New illuminance scope considers the switching currently whether carrying out photograph mode.It addition, step 105 can also be
Perform after step 104, i.e. consider currently whether to enter according to the illuminance scope before obtaining the first illuminance
The switching of row photograph mode, and update illuminance scope later.
Optionally, in the embodiment of the present invention, step 105: video camera is photographed to first according to the first illuminance
The first illuminance scope and the second illuminance scope that pattern is corresponding are updated, and comprise the steps:
First illuminance is added illuminance database by video camera；
Video camera calculates illuminance expectation according to the database after updating, and with new illuminance expects renewal first
Illuminance scope and the second illuminance scope.
Optionally, in the embodiment of the present invention, step 101: video camera obtains the first illuminance, including:
Video camera obtains optical parametric by sensor, and determines the first illuminance according to optical parametric.
The embodiment of the present invention also provides for a kind of video camera, and with reference to Fig. 4, video camera includes:
Obtain unit 201, for obtaining the first illuminance in the first moment；
First judging unit 202, for judging whether the first illuminance is effective illuminance；
At the first judging unit 202, second judging unit 203, for determining that the first illuminance is effective illumination
When spending, it is judged that whether the first illuminance is within the scope of the second illuminance；Wherein, the photography that video camera is current
Pattern is the first mode of operation, and the first photograph mode is arbitrary in colour phhotograpy pattern and black-and-white photography pattern
Kind, the second photograph mode is to be different from the another of the first photograph mode in colour phhotograpy pattern and black-and-white photography pattern
A kind of；
At the second judging unit 203, switch unit 204, for determining that the first illuminance is at the second illuminance model
Time within enclosing, by camera switching to the second photograph mode.
Optionally, in the embodiment of the present invention, the first judging unit 202 specifically for: obtain in the first moment
Multiple illuminance in the range of preset duration before；Obtain each illuminance and the first illuminance in multiple illuminance
Between illuminance poor, it is thus achieved that multiple illuminance are poor；Whether the first illuminance is judged based on multiple illuminance differences
For effective illuminance.
Optionally, in the embodiment of the present invention, video camera also includes:
Updating block 205, for the first judging unit 202 determine the first illuminance be effective illuminance it
After, according to the first illuminance to the first illuminance scope corresponding to the first photograph mode and the second illuminance model
Enclose and be updated.
Optionally, in the embodiment of the present invention, updating block 205 specifically for:
First illuminance is added illuminance database；
Illuminance expectation is calculated according to the database after updating, and with the expectation of new illuminance updates the first illuminance
Scope and the second illuminance scope.
Optionally, in the embodiment of the present invention, it is thus achieved that unit 201 specifically for: obtain optics by sensor
Parameter, and determine the first illuminance according to optical parametric.
The specific implementation of the performed operation of each functional module that above video camera comprises is referred to Fig. 1-3
Embodiment in the corresponding step that performed by video camera, the embodiment of the present invention repeats no more.
The one or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or excellent
Point:
Video camera is when being in the first mode of operation, after the first illuminance scope of acquisition, first has to checking
The validity of the first illuminance, only when the first illuminance is effective, just determines whether according to the first illuminance
Carry out the switching of photograph mode, it is to avoid cause taking the photograph because the illuminance vibration that produced by disturbance when photographing
The frequent switching of the photograph mode of camera, the switching mode of photograph mode is the most reasonable and accurate.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or meter
Calculation machine program product.Therefore, the present invention can use complete hardware embodiment, complete software implementation or knot
The form of the embodiment in terms of conjunction software and hardware.And, the present invention can use and wherein wrap one or more
Computer-usable storage medium containing computer usable program code (include but not limited to magnetic disc store,
CD-ROM, optical memory etc.) form of the upper computer program implemented.
The present invention is with reference to method, equipment (system) and the computer program product according to the embodiment of the present application
The flow chart of product and/or block diagram describe.It should be understood that can by computer program instructions flowchart and
/ or block diagram in each flow process and/or flow process in square frame and flow chart and/or block diagram and/
Or the combination of square frame.These computer program instructions can be provided to all-purpose computer, special-purpose computer, embedding
The processor of formula processor or other programmable data processing device is to produce a machine so that by calculating
The instruction that the processor of machine or other programmable data processing device performs produces for realizing at flow chart one
The device of the function specified in individual flow process or multiple flow process and/or one square frame of block diagram or multiple square frame.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention
Bright spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.
Claims (10)
1. the method switching photograph mode, it is characterised in that described method is by being in the first photography mould
The video camera of formula performs, and described first photograph mode is arbitrary in colour phhotograpy pattern and black-and-white photography pattern
Kind, described method includes:
In the first moment, it is thus achieved that the first illuminance；
Judge whether described first illuminance is effective illuminance；
If described first illuminance is effective illuminance, then judge that whether described first illuminance is in the second photography
Within the scope of second illuminance of pattern, described second photograph mode is described colour phhotograpy pattern and described black
White photograph mode is different from the another kind of described first photograph mode；
The most then switch to described second photograph mode.
2. the method for claim 1, it is characterised in that judge that whether described first illuminance is
Effectively illuminance, including:
Obtain multiple illuminance in the range of preset duration before described first moment；
Obtain in the plurality of illuminance the illuminance between each illuminance and described first illuminance poor, obtain
Obtain multiple illuminance poor；
Judge whether described first illuminance is effective illuminance based on the plurality of illuminance difference.
3. method as claimed in claim 1 or 2, it is characterised in that judging described first illuminance
After whether being effective illuminance, described method also includes:
If described first illuminance is effective illuminance, take the photograph described first according to described first illuminance
The first illuminance scope and described second illuminance scope that shadow pattern is corresponding are updated.
4. method as claimed in claim 3, it is characterised in that according to described first illuminance to described
The first illuminance scope and described second illuminance scope that described first photograph mode is corresponding are updated,
Including:
Described first illuminance is added illuminance database；
Illuminance expectation is calculated according to the database after updating, and with the expectation of new described illuminance updates described the
One illuminance scope and described second illuminance scope.
5. method as claimed in claim 1 or 2, it is characterised in that obtain the first illuminance, including:
Obtain optical parametric by sensor, and determine described first illuminance according to described optical parametric.
6. a video camera, it is characterised in that including:
Obtain unit, for obtaining the first illuminance in the first moment；
First judging unit, is used for judging whether described first illuminance is effective illuminance；
At described first judging unit, second judging unit, for determining that described first illuminance is effective illumination
When spending, it is judged that whether described first illuminance is within the scope of the second illuminance of the second photograph mode；Wherein,
The current photograph mode of described video camera is the first mode of operation, and described first photograph mode is colour phhotograpy mould
Any one in formula and black-and-white photography pattern, described second photograph mode is described colour phhotograpy pattern and described
Black-and-white photography pattern is different from the another kind of described first photograph mode；
At described second judging unit, switch unit, for determining that described first illuminance is in described second illumination
Time within the scope of degree, by described camera switching to described second photograph mode.
7. video camera as claimed in claim 6, it is characterised in that described first judging unit is specifically used
In: obtain multiple illuminance in the range of preset duration before described first moment；Obtain the plurality of illumination
In degree, the illuminance between each illuminance and described first illuminance is poor, it is thus achieved that multiple illuminance are poor；Based on
The plurality of illuminance difference judges whether described first illuminance is effective illuminance.
Video camera the most as claimed in claims 6 or 7, it is characterised in that described video camera also includes:
Updating block, for described first judging unit determine described first illuminance be effective illuminance it
After, according to described first illuminance to the first illuminance scope corresponding to described first photograph mode and
Described second illuminance scope is updated.
9. video camera as claimed in claim 8, it is characterised in that described updating block specifically for:
Described first illuminance is added illuminance database；
Illuminance expectation is calculated according to the database after updating, and with the expectation of new described illuminance updates described the
One illuminance scope and described second illuminance scope.
Video camera the most as claimed in claims 6 or 7, it is characterised in that described acquisition unit is specifically used
In: obtain optical parametric by sensor, and determine described first illuminance according to described optical parametric.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610221517.2A CN105847690B (en) | 2016-04-11 | 2016-04-11 | A kind of method and video camera switching photograph mode |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610221517.2A CN105847690B (en) | 2016-04-11 | 2016-04-11 | A kind of method and video camera switching photograph mode |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108093183A (en) * | 2018-02-11 | 2018-05-29 | 普联技术有限公司 | A kind of video camera diurnal pattern switching method and terminal device |
| CN108556738A (en) * | 2018-03-30 | 2018-09-21 | 深圳市元征科技股份有限公司 | The display device and method of automobile A-column blind area |
| CN108710825A (en) * | 2018-04-11 | 2018-10-26 | 广州市交通委员会 | Comprehensive passenger transport hub passenger flow analysing and prediction technique |
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| CN104580896A (en) * | 2014-12-25 | 2015-04-29 | 深圳市锐明视讯技术有限公司 | Method and device for switching day and night modes of camera |
| US20150281657A1 (en) * | 2014-04-01 | 2015-10-01 | Samsung Techwin Co., Ltd. | Surveillance camera |
| CN105049731A (en) * | 2015-08-26 | 2015-11-11 | 北京奇虎科技有限公司 | Intelligent camera device and video mode switching method thereof |
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| US20150281657A1 (en) * | 2014-04-01 | 2015-10-01 | Samsung Techwin Co., Ltd. | Surveillance camera |
| CN104580896A (en) * | 2014-12-25 | 2015-04-29 | 深圳市锐明视讯技术有限公司 | Method and device for switching day and night modes of camera |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108093183A (en) * | 2018-02-11 | 2018-05-29 | 普联技术有限公司 | A kind of video camera diurnal pattern switching method and terminal device |
| CN108093183B (en) * | 2018-02-11 | 2020-10-23 | 普联技术有限公司 | Camera day and night mode switching method and terminal equipment |
| CN108556738A (en) * | 2018-03-30 | 2018-09-21 | 深圳市元征科技股份有限公司 | The display device and method of automobile A-column blind area |
| CN108710825A (en) * | 2018-04-11 | 2018-10-26 | 广州市交通委员会 | Comprehensive passenger transport hub passenger flow analysing and prediction technique |
Also Published As
| Publication number | Publication date |
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| CN105847690B (en) | 2019-06-25 |
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