CN109495685A - A kind of video camera day and night method for handover control, device and storage medium - Google Patents
A kind of video camera day and night method for handover control, device and storage medium Download PDFInfo
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- CN109495685A CN109495685A CN201811495779.3A CN201811495779A CN109495685A CN 109495685 A CN109495685 A CN 109495685A CN 201811495779 A CN201811495779 A CN 201811495779A CN 109495685 A CN109495685 A CN 109495685A
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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
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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
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/71—Circuitry for evaluating the brightness variation
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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
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
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- Studio Devices (AREA)
Abstract
The invention discloses a kind of web camera day and night method for handover control, device and storage mediums, to solve the problems, such as that web camera day mode/night mode switches repeatedly.Web camera day and night method for handover control, comprising: after being switched to night mode, obtain the first brightness of image evaluation parameter of real-time image acquisition；According to the image analysis period of setting, the second brightness of image evaluation parameter of acquired image in described image analytical cycle is obtained；Determine the difference between the second brightness of image evaluation parameter and the first image brightness evaluation parameter；It is determined the need for executing day and night pattern switching according to the difference.
Description
Technical field
The present invention relates to web camera technical field more particularly to a kind of video camera day and night method for handover control, device
And storage medium.
Background technique
Web camera, using day mode, can export color image, in ambient brightness when ambient brightness is high
In the case where low, the scene of monitoring can not be seen, so having to switch over night mode, and use infrared lamp light filling, and defeated
Black white image out.
Web camera carries out scheme there are two types of day and night switchings at present.One is judged by hard photosensitive perception natural light
Light intensity；One is analyzed by the way that soft light is quick based on brightness of image.Hard photosensitive occupancys hardware cost and unstable, therefore use
The IP Camera ratio of the quick scheme of soft light is gradually increased.But under certain particular surroundings, soft light is quick, and there is day mode/nights
The problem of late mode switches repeatedly.As shown in Figure 1, using the application scenarios of the object outside camera supervised glass, in the scene
Under, when entering night, in order to which the night vision effect in evening can utilize infrared lamp light filling, at this moment, due to the reflected light of infrared lamp
Source is stronger, and the scene for causing web camera to analyze is daytime and is switched to day mode, infrared lamp is closed, because of infrared lamp
Closing, without reflection source, scene that web camera analyzes again is night, is switched to night mode, is opened infrared
Lamp, web camera just will appear day mode/night mode and switch repeatedly as a result,.
Summary of the invention
The embodiment of the present invention provides a kind of web camera day and night method for handover control, device and storage medium, to solve
The problem of certainly web camera day mode/night mode switches repeatedly.
In a first aspect, providing a kind of web camera day and night method for handover control, comprising:
After being switched to night mode, the first brightness of image evaluation parameter of real-time image acquisition is obtained；
According to the image analysis period of setting, the second brightness of image of acquired image in described image analytical cycle is obtained
Evaluation parameter；
Determine the difference between the second brightness of image evaluation parameter and the first image brightness evaluation parameter；
It is determined the need for executing day and night pattern switching according to the difference.
Optionally, it is determined the need for executing day and night pattern switching according to the difference, be specifically included:
If the difference is greater than preset threshold, it is determined that execute day and night pattern switching；
If the difference is not more than preset threshold, it is determined that do not execute day and night pattern switching.
Alternatively, if it is determined that execute day and night pattern switching, then the method also includes:
After executing day and night pattern switching, updating the first image brightness evaluation parameter is to cut in execution diurnal pattern
The brightness of image evaluation parameter of real-time image acquisition after alternatively.
Optionally, web camera provided in an embodiment of the present invention day and night method for handover control, further includes:
When each new image analysis period starts, updating the first image brightness evaluation parameter is image analysis week
The brightness of image evaluation parameter of real-time image acquisition when phase starts.
Optionally, described image brightness evaluation parameter includes at least one of the following: exposure value and white balance.
Second aspect provides a kind of web camera day and night switching control, comprising:
First acquisition unit, for after being switched to night mode, obtaining the first brightness of image of real-time image acquisition
Evaluation parameter；
Second acquisition unit was obtained and is acquired in described image analytical cycle for the image analysis period according to setting
Second brightness of image evaluation parameter of image；
First determination unit, for determine the second brightness of image evaluation parameter that the second acquisition unit obtains with it is described
The difference between the first brightness of image evaluation parameter that first acquisition unit obtains；
Second determination unit, the difference for being determined according to first determination unit determine the need for executing day and night
Pattern switching.
Optionally, second determination unit, if being specifically used for the difference is greater than preset threshold, it is determined that the execution day
Night pattern switching；If the difference is not more than preset threshold, it is determined that do not execute day and night pattern switching.
Optionally, web camera provided in an embodiment of the present invention day and night switching control, further includes:
Updating unit executes day and night pattern switching if determined for second determination unit, day and night switches executing
After mode, the figure that the first image brightness evaluation parameter is the real-time image acquisition after executing day and night pattern switching is updated
Image brightness evaluation parameter；Or when each new image analysis period starts, the first image brightness evaluation parameter is updated
The brightness of image evaluation parameter of real-time image acquisition when starting for the image analysis period.
The third aspect provides a kind of computing device, including at least one processor and at least one processor, wherein
The memory is stored with computer program, when described program is executed by the processor, so that the processor executes
State web camera day and night either step described in method for handover control.
Fourth aspect provides a kind of computer-readable medium, is stored with the computer program that can be executed by computing device,
When described program is run on the computing device, so that the computing device executes above-mentioned web camera day and night switching control side
Either step described in method.
Web camera provided in an embodiment of the present invention day and night method for handover control, device and storage medium, take the photograph in network
Camera is switched to after night mode, obtains the first brightness of image evaluation parameter for acquiring image at this time, subsequent, in each image
In analytical cycle, the second brightness of image evaluation parameter of acquisition image in the period is obtained, is evaluated and is joined by the first brightness of image
Several differences between the second brightness of image evaluation parameter judge whether to execute day and night pattern switching, in the above process, due to
It is switched to after night mode, infrared lamp has turned on, and the brightness of image evaluation parameter for obtaining acquired image at this time is that unlatching is red
After outer lamp, therefore, in each image analysis period, only when external environment change Shi Caihui execution pattern switching,
Switching problem repeatedly caused by so as to avoid being opened due to infrared lamp.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is in the prior art, to utilize the application scenarios schematic diagram of the object outside camera supervised glass；
Fig. 2 is the implementation process diagram of web camera day and night method for handover control in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of web camera day and night switching control in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of computing device in the embodiment of the present invention.
Specific embodiment
In order to solve the problems, such as that web camera day mode/night mode switches repeatedly, the embodiment of the invention provides
A kind of web camera day and night method for handover control, device and storage medium.
Specification and claims in the embodiment of the present invention and the term " first " in above-mentioned attached drawing, " second " etc. are
It is used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that the data used in this way
It is interchangeable under appropriate circumstances, so that the embodiments described herein can be other than the content for illustrating or describing herein
Sequence implement.
Referenced herein " multiple or several " refer to two or more."and/or" describes affiliated partner
Incidence relation, indicate may exist three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B,
These three situations of individualism B.Character "/" typicallys represent the relationship that forward-backward correlation object is a kind of "or".
Below in conjunction with Figure of description, preferred embodiment of the present invention will be described, it should be understood that described herein
Preferred embodiment only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention, and in the absence of conflict, this hair
The feature in embodiment and embodiment in bright can be combined with each other.
As shown in Fig. 2, its implementing procedure for web camera provided in an embodiment of the present invention day and night method for handover control
Schematic diagram may comprise steps of:
S21, after being switched to night mode, obtain the first brightness of image evaluation parameter of real-time image acquisition.
When it is implemented, web camera can be switched to night mode, and open when judging external environment is night
Open infrared lamp light filling.Specifically, web camera can detect the brightness of external environment by built-in brightness impression module, such as
Fruit brightness is lower than certain threshold value, it is determined that is switched to night mode, and opens infrared lamp；Alternatively, web camera can lead to
The brightness of image parameter of the image of analysis acquisition is crossed to identify whether external environment is night etc., the embodiment of the present invention to this not into
Row limits.
Web camera obtains the first brightness of image evaluation ginseng of real-time image acquisition after being switched to night mode
Number.
In the embodiment of the present invention, the first brightness of image evaluation parameter may include at least one of following: exposure value and Bai Ping
Weighing apparatus.
S22, the image analysis period according to setting obtain the second image of acquired image in described image analytical cycle
Brightness evaluation parameter.
In this step, web camera obtains institute in each image analysis period according to the image analysis period of setting
Acquire the second brightness of image evaluation parameter of image.
Wherein, the second brightness of image evaluation parameter may include at least one of following: exposure value and white balance.
S23, difference between the second brightness of image evaluation parameter and the first brightness of image evaluation parameter is determined.
In this step, web camera is determined between the second brightness of image evaluation parameter and the first brightness of image evaluation parameter
Difference.
S24, it is determined the need for executing day and night pattern switching according to difference.
Web camera is determining the difference between the second brightness of image evaluation parameter and the first brightness of image evaluation parameter
After value, judge whether the difference is greater than preset threshold, if it is greater than preset threshold, web camera can determine external environment
It changes, needs to be implemented diurnal pattern switching at this time, for example, being currently night mode, then switch to day mode；If poor
Value is not more than preset threshold, then web camera can determine that external environment does not change, then does not execute and day and night switch.
According to embodiments of the present invention, whether can be changed with accurate judgement external environment, web camera is day and night
Whether it is unrelated whether pattern switching opens with infrared lamp, only change to the external environment judged related.
When it is implemented, web camera after executing day and night pattern switching, updates the first brightness of image evaluation parameter
For the brightness of image evaluation parameter of the real-time image acquisition after executing day and night pattern switching.
In one embodiment, in order to improve the accuracy of web camera day and night switching control, in the embodiment of the present invention,
When each new image analysis period starts, it is real-time when starting in the image analysis period for updating the first brightness of image evaluation parameter
Acquire the brightness of image evaluation parameter of image.For example, being cut within the present image analysis period even if being not carried out diurnal pattern
It changes, when next image analytical cycle starts, it is also desirable to update the first brightness of image evaluation parameter.
In the embodiment of the present invention, external environment is identified by exposure value and white balance, in night environment, by adjacent
The brightness of image evaluation parameter of two image analysis period acquisition images compares to judge whether external environment changes, and avoids
Because the switching repeatedly phenomenon that the infrared external reflection light source that external environment occurs may cause generates.It is provided in an embodiment of the present invention
Web camera day and night method for handover control photosensitive saved hardware cost, improves switching stability compared to hard；Compared to
General soft light is quick, and provides the quick adaptability to environment of soft light, improves the accuracy of day and night switching control.
Based on the same inventive concept, a kind of web camera is additionally provided in the embodiment of the present invention, and day and night switching control fills
It sets, day and night method for handover control is similar to web camera for the principle solved the problems, such as due to above-mentioned apparatus, above-mentioned apparatus
Implementation may refer to the implementation of method, and overlaps will not be repeated.
As shown in figure 3, its structural representation for web camera provided in an embodiment of the present invention day and night switching control
Figure, comprising:
First acquisition unit 31, the first image for after being switched to night mode, obtaining real-time image acquisition are bright
Spend evaluation parameter；
Second acquisition unit 32 was obtained and is adopted in described image analytical cycle for the image analysis period according to setting
Collect the second brightness of image evaluation parameter of image；
First determination unit 33, for determining the second brightness of image evaluation parameter and the institute of the second acquisition unit acquisition
State the difference between the first brightness of image evaluation parameter of first acquisition unit acquisition；
Second determination unit 34, the difference for being determined according to first determination unit determine the need for the execution day
Night pattern switching.
Optionally, second determination unit, if being specifically used for the difference is greater than preset threshold, it is determined that the execution day
Night pattern switching；If the difference is not more than preset threshold, it is determined that do not execute day and night pattern switching.
Optionally, web camera provided in an embodiment of the present invention day and night switching control, further includes:
Updating unit executes day and night pattern switching if determined for second determination unit, day and night switches executing
After mode, the figure that the first image brightness evaluation parameter is the real-time image acquisition after executing day and night pattern switching is updated
Image brightness evaluation parameter；Or when each new image analysis period starts, the first image brightness evaluation parameter is updated
The brightness of image evaluation parameter of real-time image acquisition when starting for the image analysis period.
For convenience of description, above each section is divided by function describes respectively for each module (or unit).Certainly, exist
Implement to realize the function of each module (or unit) in same or multiple softwares or hardware when the present invention.
After the web camera for describing exemplary embodiment of the invention day and night method for handover control and device, connect
Get off, introduces the computing device of another exemplary embodiment according to the present invention.
Person of ordinary skill in the field it is understood that various aspects of the invention can be implemented as system, method or
Program product.Therefore, various aspects of the invention can be embodied in the following forms, it may be assumed that complete hardware embodiment, complete
The embodiment combined in terms of full Software Implementation (including firmware, microcode etc.) or hardware and software, can unite here
Referred to as circuit, " module " or " system ".
In some possible embodiments, computing device according to the present invention can include at least at least one processing
Device and at least one processor.Wherein, the memory is stored with program code, when said program code is by the processing
When device executes, so that the processor executes the net of the illustrative embodiments various according to the present invention of this specification foregoing description
The network video camera day and night step in method for handover control.For example, the processor can execute step S21 as shown in Figure 2,
After being switched to night mode, obtain real-time image acquisition the first brightness of image evaluation parameter and step S22, according to setting
The fixed image analysis period obtains the second brightness of image evaluation parameter of acquired image in described image analytical cycle；And
Step S23, the difference between the second brightness of image evaluation parameter and the first brightness of image evaluation parameter is determined；Step S24, basis
Difference determines the need for executing day and night pattern switching.
The computing device 40 of this embodiment according to the present invention is described referring to Fig. 4.The calculating dress that Fig. 4 is shown
Setting 40 is only an example, should not function to the embodiment of the present invention and use scope bring any restrictions.
As shown in figure 4, computing device 40 is showed in the form of universal computing device.The component of computing device 40 may include
But it is not limited to: at least one above-mentioned processor 41, above-mentioned at least one processor 42, (including the storage of the different system components of connection
Device 42 and processor 41) bus 43.
Bus 43 indicates one of a few class bus structures or a variety of, including memory bus or Memory Controller,
Peripheral bus, processor or the local bus using any bus structures in a variety of bus structures.
Memory 42 may include the readable medium of form of volatile memory, such as random access memory (RAM)
421 and/or cache memory 422, it can further include read-only memory (ROM) 423.
Memory 42 can also include program/utility 425 with one group of (at least one) program module 424, this
The program module 424 of sample includes but is not limited to: operating system, one or more application program, other program modules and journey
It may include the realization of network environment in ordinal number evidence, each of these examples or certain combination.
Computing device 40 can also be communicated with one or more external equipments 44 (such as keyboard, sensing equipment etc.), may be used also
Enable a user to the equipment interacted with computing device 40 communication with one or more, and/or with enable the computing device 40
Any equipment (such as router, modem etc.) communicated with one or more of the other calculating equipment communicates.This
Kind communication can be carried out by input/output (I/O) interface 45.Also, computing device 40 can also pass through network adapter 46
With one or more network (such as local area network (LAN), wide area network (WAN) and/or public network, such as internet) communication.
As shown, network adapter 46 is communicated by bus 43 with other modules for computing device 40.It will be appreciated that though figure
In be not shown, can in conjunction with computing device 40 use other hardware and/or software module, including but not limited to: microcode, equipment
Driver, redundant processor, external disk drive array, RAID system, tape drive and data backup storage system
Deng.
In some possible embodiments, each side of web camera provided by the invention day and night method for handover control
Face is also implemented as a kind of form of program product comprising program code, when described program product on a computing device
When operation, said program code is shown for making the computer equipment execute the various according to the present invention of this specification foregoing description
The web camera of the example property embodiment day and night step in method for handover control, for example, the computer equipment can execute
Step S21 as shown in Figure 2, after being switched to night mode, obtain the first brightness of image evaluation of real-time image acquisition
Parameter and step S22, the image analysis period according to setting obtain second of acquired image in described image analytical cycle
Brightness of image evaluation parameter；And step S23, determine the second brightness of image evaluation parameter and the first brightness of image evaluation parameter it
Between difference；Step S24, it is determined the need for executing day and night pattern switching according to difference.
Described program product can be using any combination of one or more readable mediums.Readable medium can be readable letter
Number medium or readable storage medium storing program for executing.Readable storage medium storing program for executing for example may be-but not limited to-electricity, magnetic, optical, electromagnetic, red
The system of outside line or semiconductor, device or device, or any above combination.The more specific example of readable storage medium storing program for executing
(non exhaustive list) includes: the electrical connection with one or more conducting wires, portable disc, hard disk, random access memory
(RAM), read-only memory (ROM), erasable programmable read only memory (EPROM or flash memory), optical fiber, portable compact disc
Read memory (CD-ROM), light storage device, magnetic memory device or above-mentioned any appropriate combination.
The program product for web camera day and night switching control of embodiments of the present invention can use portable
Compact disk read-only memory (CD-ROM) and including program code, and can run on the computing device.However, journey of the invention
Sequence product is without being limited thereto, and in this document, readable storage medium storing program for executing can be any tangible medium for including or store program, the journey
Sequence can be commanded execution system, device or device use or in connection.
Readable signal medium may include in a base band or as the data-signal that carrier wave a part is propagated, wherein carrying
Readable program code.The data-signal of this propagation can take various forms, including --- but being not limited to --- electromagnetism letter
Number, optical signal or above-mentioned any appropriate combination.Readable signal medium can also be other than readable storage medium storing program for executing it is any can
Read medium, the readable medium can send, propagate or transmit for by instruction execution system, device or device use or
Program in connection.
The program code for including on readable medium can transmit with any suitable medium, including --- but being not limited to ---
Wirelessly, wired, optical cable, RF etc. or above-mentioned any appropriate combination.
The program for executing operation of the present invention can be write with any combination of one or more programming languages
Code, described program design language include object oriented program language-Java, C++ etc., further include conventional
Procedural programming language-such as " C " language or similar programming language.Program code can be fully in user
It calculates and executes in equipment, partly executes on a user device, being executed as an independent software package, partially in user's calculating
Upper side point is executed on a remote computing or is executed in remote computing device or server completely.It is being related to far
Journey calculates in the situation of equipment, and remote computing device can pass through the network of any kind --- including local area network (LAN) or extensively
Domain net (WAN)-be connected to user calculating equipment, or, it may be connected to external computing device (such as utilize Internet service
Provider is connected by internet).
It should be noted that although being referred to several unit or sub-units of device in the above detailed description, this stroke
It point is only exemplary not enforceable.In fact, embodiment according to the present invention, it is above-described two or more
The feature and function of unit can embody in a unit.Conversely, the feature and function of an above-described unit can
It is to be embodied by multiple units with further division.
In addition, although describing the operation of the method for the present invention in the accompanying drawings with particular order, this do not require that or
Hint must execute these operations in this particular order, or have to carry out shown in whole operation be just able to achieve it is desired
As a result.Additionally or alternatively, it is convenient to omit multiple steps are merged into a step and executed by certain steps, and/or by one
Step is decomposed into execution of multiple steps.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer journeys
Sequence instruct to general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices processor with
A machine is generated, so that the instruction generation executed by computer or the processor of other programmable data processing devices is used for
Realize the dress for the function of specifying in one or more flows of the flowchart and/or one or more blocks of the block diagram
It sets.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of web camera day and night method for handover control characterized by comprising
After being switched to night mode, the first brightness of image evaluation parameter of real-time image acquisition is obtained；
According to the image analysis period of setting, the second brightness of image evaluation of acquired image in described image analytical cycle is obtained
Parameter；
Determine the difference between the second brightness of image evaluation parameter and the first image brightness evaluation parameter；
It is determined the need for executing day and night pattern switching according to the difference.
2. the method as described in claim 1, which is characterized in that determine the need for execution diurnal pattern according to the difference and cut
It changes, specifically includes:
If the difference is greater than preset threshold, it is determined that execute day and night pattern switching；
If the difference is not more than preset threshold, it is determined that do not execute day and night pattern switching.
3. method according to claim 2, which is characterized in that if it is determined that execute day and night pattern switching, then the method is also
Include:
Executing day and night after pattern switching, update the first image brightness evaluation parameter be execute day and night pattern switching it
The brightness of image evaluation parameter of real-time image acquisition afterwards.
4. the method as described in claim 1, which is characterized in that further include:
When each new image analysis period starts, updating the first image brightness evaluation parameter is to open in the image analysis period
The brightness of image evaluation parameter of real-time image acquisition when the beginning.
5. the method as described in Claims 1 to 4 any claim, which is characterized in that the first image brightness evaluation ginseng
Number includes at least one of the following: exposure value and white balance.
6. a kind of web camera day and night switching control characterized by comprising
First acquisition unit, the first brightness of image for after being switched to night mode, obtaining real-time image acquisition are evaluated
Parameter；
Second acquisition unit obtains acquired image in described image analytical cycle for the image analysis period according to setting
The second brightness of image evaluation parameter；
First determination unit, the second brightness of image evaluation parameter and described first obtained for determining the second acquisition unit
The difference between the first brightness of image evaluation parameter that acquiring unit obtains；
Second determination unit, the difference for being determined according to first determination unit determine the need for executing diurnal pattern
Switching.
7. device as claimed in claim 6, which is characterized in that
Second determination unit, if being specifically used for the difference is greater than preset threshold, it is determined that execute day and night pattern switching；
If the difference is not more than preset threshold, it is determined that do not execute day and night pattern switching.
8. device as claimed in claim 7, which is characterized in that further include:
Updating unit executes day and night pattern switching if determined for second determination unit, is executing day and night switch mode
Later, it is bright to update the image that the first image brightness evaluation parameter is the real-time image acquisition after executing day and night pattern switching
Spend evaluation parameter；Or when each new image analysis period starts, updating the first image brightness evaluation parameter is figure
The brightness of image evaluation parameter of real-time image acquisition when starting as analytical cycle.
9. a kind of computing device, which is characterized in that including at least one processor and at least one processor, wherein described
Memory is stored with computer program, when described program is executed by the processor, so that the processor perform claim is wanted
The step of seeking 1~5 any claim the method.
10. a kind of computer-readable medium, which is characterized in that it is stored with the computer program that can be executed by computing device, when
When described program is run on the computing device, so that the computing device perform claim requires the step of 1~5 any the method
Suddenly.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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