CN109996061A - The method for detecting abnormality and device of IR-CUT - Google Patents
The method for detecting abnormality and device of IR-CUT Download PDFInfo
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- CN109996061A CN109996061A CN201711469544.2A CN201711469544A CN109996061A CN 109996061 A CN109996061 A CN 109996061A CN 201711469544 A CN201711469544 A CN 201711469544A CN 109996061 A CN109996061 A CN 109996061A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/002—Diagnosis, testing or measuring for television systems or their details for television cameras
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/02—Diagnosis, testing or measuring for television systems or their details for colour television signals
Abstract
The present invention relates to monitoring technology fields, more particularly to the method for detecting abnormality and device of a kind of IR-CUT, the IR-CUT is installed in monitoring camera, the monitoring camera is placed in the adjustable lamp box of intensity of infrared light and visible light, this method comprises: the working condition of the operation setting monitoring camera of response user is black and white state or color state, and the color total value of each color in the three primary colors of all pixels point on image is calculated separately according to the image that monitoring camera acquires under black and white state or color state, and then determine whether the IR-CUT is abnormal according to the ratio between the color total value of different colours.In this programme, the working condition for only needing user setting monitoring camera is black and white state or color state, ratio of the monitoring camera on the image acquired under black and white state or color state in the three primary colors of all pixels point between different colours total value can independently be analyzed, and then judge whether the IR-CUT is abnormal, the workload of people is considerably reduced, is improved work efficiency.
Description
Technical field
The present invention relates to monitoring technology fields, in particular to the method for detecting abnormality and device of a kind of IR-CUT.
Background technique
The application range of today's society, monitoring camera is very extensive, and scene is also very complicated, in order to guarantee that monitoring camera is being drawn
Still have good monitoring effect when face is very dark, using infrared light filling, the wavelength of infrared light mainly in 800~1000nm, for
Human eye is invisible, but the photosensitive wave band of the imaging sensor of monitoring camera is full wave, it is seen that light and infrared light all can be by
Perception.When picture is colored, the entrance of infrared light will lead to picture color distortion, when picture is black and white, infrared light into
Membership promotes picture brightness, promotes user's impression.
IR-CUT is a kind of filter switching device, when exterior light is artwork master according to the image that weaker and monitoring camera exports
When picture, IR-CUT can make infrared light enter carry out light filling；When exterior light is cromogram according to relatively strong and monitoring camera output image
When picture, IR-CUT can completely cut off infrared light, so that the color of image of monitoring camera acquisition is closer regardless of external circumstances
Really.In the prior art, usually judge whether IR-CUT can work normally by human eye, need to put into a large amount of people
Power and time, therefore it provides the automatic method for detecting abnormality of IR-CUT a kind of is very necessary.
Summary of the invention
The purpose of the present invention is to provide the method for detecting abnormality of IR-CUT a kind of, to pass through simpler method pair
IR-CUT is carried out abnormality detection, to improve working efficiency.
Another object of the present invention is to provide the abnormal detectors of IR-CUT a kind of, to pass through simpler method
IR-CUT is carried out abnormality detection, to improve working efficiency.
To achieve the goals above, technical solution used in the embodiment of the present invention is as follows:
In a first aspect, the IR-CUT is installed on the embodiment of the invention provides the method for detecting abnormality of IR-CUT a kind of
In monitoring camera, the monitoring camera is placed in adjustable infrared light and the lamp box of visible light relative intensity, the method packet
Include: the working condition for responding monitoring camera described in the operation setting of user is black and white state or color state；According to the monitoring
The image that camera acquires under the black and white state or color state calculates separately every in the three primary colors of all pixels point on image
The color total value of kind color；Determine whether the IR-CUT is abnormal according to the ratio between the color total value of the different colours.
Second aspect, the embodiment of the invention also provides the abnormal detector of IR-CUT a kind of, the IR-CUT installation
In monitoring camera, the monitoring camera is placed in adjustable infrared light and the lamp box of visible light relative intensity, described device
It include: setup module, the working condition for responding monitoring camera described in the operation setting of user is black and white state or colored shape
State；Computing module, the image for being acquired under the black and white state or color state according to the monitoring camera calculate separately
On image in the three primary colors of all pixels point each color color total value；Analysis module, for according to the different colours
Ratio between color total value determines whether the IR-CUT is abnormal.
The method for detecting abnormality and device of a kind of IR-CUT provided in an embodiment of the present invention, the IR-CUT are installed on monitoring phase
In machine, the monitoring camera is placed in the adjustable lamp box of intensity of infrared light and visible light, this method comprises: response is used
The working condition of the operation setting monitoring camera at family is black and white state or color state, and according to monitoring camera in black and white state or
The image acquired under color state calculates separately the color total value of each color in the three primary colors of all pixels point on image, in turn
Determine whether the IR-CUT is abnormal according to the ratio between the color total value of different colours.
In the present solution, only need user setting monitoring camera working condition be black and white state or color state, can from
Different colours in the three primary colors of all pixels point on the image that main analysis monitoring camera acquires under black and white state or color state
Ratio between total value, and then judge whether the IR-CUT is abnormal, considerably reduces the workload of people, improve work effect
Rate.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows a kind of flow diagram of the method for detecting abnormality of IR-CUT provided in an embodiment of the present invention.
Fig. 2 shows the flow diagrams of first embodiment provided in an embodiment of the present invention.
Fig. 3 shows the flow diagram of second embodiment provided in an embodiment of the present invention.
Fig. 4 shows a kind of the functional block diagram of the abnormal detector of IR-CUT provided in an embodiment of the present invention.
Diagram: the abnormal detector of 100-IR-CUT；110- setup module；120- computing module；130- analysis module.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, is not intended to limit claimed invention to the detailed description of the embodiment of the present invention provided in the accompanying drawings below
Range, but it is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.Meanwhile of the invention
In description, term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
The IR-CUT is filter switching device comprising two wave plates, respectively color piece and white tiles, the coloured silk piece can only penetrate
Visible light, the white tiles visible light and infrared light can enter.The IR-CUT is usually mounted in monitoring camera, for according to reality
The light of environment is to switch white tiles or color piece, so as to be more clear color truer for the image of monitoring camera acquisition.Tool
Body is, if monitoring camera exports black white image, which stops at white tiles to promote picture brightness, work as ring through infrared light
When border light is become by force to a certain degree, illustrate that picture collection effect is good, then IR-CUT will switch to color piece to filter out infrared light, keep away
The entrance for exempting from infrared light causes picture color to be distorted；If monitoring camera exports color image, which stops at color piece with saturating
Cross visible light, stop infrared light, when ambient light it is dimmed to a certain degree when, illustrate through visible light collection image effect variation,
Then IR-CUT will switch to white tiles to promote brightness of image through infrared light.
It can be seen that the IR-CUT is worked normally, can to acquire clearly image to monitoring camera particularly significant, therefore,
Usually require whether normally switching detects to IR-CUT during the volume production of monitoring camera, even monitoring camera just
During being often used, it is also desirable to which to IR-CUT, normally whether switching is inspected periodically.In consideration of it, the embodiment of the present invention provides one
The method for detecting abnormality of kind IR-CUT, whether to be detected extremely by the realization of simple means to IR-CUT.
Before whether detecting extremely to IR-CUT, need to construct automatic detection environment, specifically: placement one is red
The intensity size of the adjustable lamp box of the intensity of outer light and visible light, infrared light and visible light in the lamp box can be according to reality
It needs to be adjusted, such as by the intensity adjustment of the intensity of infrared light and visible light is consistent.In addition, the background in the lamp box is excellent
It is selected as grey or white, to reduce the influence to background colour to infrared luminous intensity and visual intensity.Since IR-CUT is installation
In monitoring camera, therefore, when carrying out abnormality detection IR-CUT, need for monitoring camera to be placed in lamp box.
The method for detecting abnormality of IR-CUT provided in an embodiment of the present invention a kind of is applied in monitoring camera, by monitoring camera
In current detection environment whether IR-CUT is detected extremely, and will test result and be sent to and connect with the monitoring camera
Terminal device, such as computer carry out being displayed for testing staff to check.Fig. 1 is please referred to, is one kind provided in an embodiment of the present invention
The flow diagram of the method for detecting abnormality of IR-CUT.This method comprises:
Step S110, the working condition for responding monitoring camera described in the operation setting of user is black and white state or colored shape
State.
It specifically, is black and white state and color state, the black and white state respectively there are two types of the working conditions of the monitoring camera
The image for referring to monitoring camera output is black white image, and usually in the case where ambient light is darker, monitoring camera will export black
White image；The color state refers to that the image of monitoring camera output is color image, feelings usually more sufficient in ambient light
Under condition, monitoring camera will export color image.Before detect automatically, user can be according to oneself testing requirement, in advance
The working condition that monitoring camera is arranged is black and white state or color state.
Step S120 is calculated separately according to the image that the monitoring camera acquires under the black and white state or color state
On image in the three primary colors of all pixels point each color color total value.
No matter the working condition of the monitoring camera is set as color state or black and white state, which is both needed to acquire
Image, therefore the image of monitoring camera acquisition is analyzed.Specifically, the tristimulus values of each pixel are respectively on image
R value G value B value, wherein R characterization is red, G characterization green, B characterization blue, then counts the every of all pixels point on the image respectively
The color total value of kind color, is to respectively obtain R color total value on the image, G color total value, B color total value.
Step S130 determines whether the IR-CUT is abnormal according to the ratio between the color total value of the different colours.
It should be noted that can arbitrarily choose in three kinds of color total values two kinds of the ratio are determined, in other words,
Three kinds of color total values can random combine, and by each color combine in two kinds of color total values between ratio determine the IR-
Whether CUT is abnormal.In embodiments of the present invention, there are two ways to whether IR-CUT is abnormal is determined by ratio, below by
Two embodiments are illustrated respectively.It is emphasized that two embodiments of the invention are to monitoring camera working condition respectively
Whether the work of IR-CUT is detected extremely under black and white state or color state, when IR-CUT is in the working condition of monitoring camera
When to be detected as normal under black and white state and color state, just prove that the IR-CUT is working properly.
In addition, the noun of appearance is explained in next embodiment, wherein the first standard value and the second standard
Value is respectively the monitoring camera working condition when being black and white state, and when IR-CUT can be worked normally, acquires to monitoring camera
Image analyzed after obtained data, first standard value and the second standard value are IR-CUT in monitoring camera as a result,
Referential data when to be worked normally under black and white state.Third standard value and the 4th standard value are that the monitoring camera working condition is
Color state, and when IR-CUT can be worked normally, the data obtained after analyzing the image of monitoring camera acquisition, by
This, the third standard value and the 4th standard value are reference number of the IR-CUT when working normally under monitoring camera is color state
Value.
It should be noted that first standard value, the second standard value, third standard value and the 4th standard value are by lamp box
The influence of infrared light and visible light relative intensity, in other words, when the relative intensity of infrared light and visible light in lamp box occurs
When variation, the first standard value for being provided with reference, the second standard value, third mark need to be obtained to the image analysis of monitoring camera again
Quasi- value and the 4th standard value.Readily comprehensible, in the embodiment of the present invention, working condition same for monitoring camera has chosen two
A reference value, if reference value is the first standard value and the second standard value under black and white state, the reference value of color state is third mark
Quasi- value and the 4th standard value, the quantity of the reference value of the selection can also be chosen according to actual needs, as in monitoring camera
Same working condition one reference value of lower selection etc..
It referring to figure 2., is a kind of flow diagram of first embodiment provided in an embodiment of the present invention, step includes:
Step S131, if the working condition of the monitoring camera be color state, the first color combination color total value it
Between ratio and the first standard value between difference be less than first threshold；And/or second color combination color total value between
The difference of ratio and the second standard value is less than second threshold, and characterizing the IR-CUT is to switch to color piece through visible light, institute
State IR-CUT exception.
Wherein, it in monitoring camera is black and white state that the first standard value and the second standard value, which are the IR-CUT that measures in advance,
Referential data when lower normal work, in addition, under normal circumstances, when the working condition of monitoring camera is black and white state, IR-CUT
White tiles should be rested on, to promote brightness of image through infrared light.In embodiments of the present invention, the first standard value passes through (R/G)wbTable
Show, the second standard value passes through (B/G)wbIt indicating, the ratio between the color total value of the first color combination is indicated by (R/G), the
Ratio between the color total value of second colors combination indicates that first threshold is indicated by Thd1 by (B/G), and second threshold passes through
Thd2 is indicated, if meeting | (R/G)-(R/G)wb| < Thd1 and/or (B/G)-(B/G)wbThen IR-CUT is abnormal by | < Thd2.It needs
It is bright, since the first standard value and the second standard value are the parameter that IR-CUT is worked normally in the case where monitoring camera is black and white state
Numerical value, then when the working condition to monitoring camera is color state, the image that acquires is analyzed, if its color total value it
Between ratio and standard value between difference be not much different, then illustrate IR-CUT when monitoring camera is color state to be switched to
White tiles, therefore illustrate that exception occurs in the IR-CUT.In addition, readily comprehensible, the ratio which combines with the color of selection
Value corresponds to, and is the ratio of two same color total values, and the embodiment of the present invention is in order to improve accuracy, it is determined that two standards
It is worth (the first standard value and the second standard value), while has been determined that two colors corresponding with standard value combine, it is readily appreciated that, it should
Standard value and the quantity of color combination can customize setting.
Step S132, if the working condition of the monitoring camera be color state, the first color combination color total value it
Between ratio and third standard value between difference be less than between the color total value that third threshold value and/or the second color combine
The difference of ratio and the 4th standard value characterizes the IR-CUT and switches to color piece with through visible light less than the 4th threshold value, described
IR-CUT is normal.
Similarly, third standard value and the 4th standard value are IR-CUT when working normally under monitoring camera is color state
Referential data, in addition, under normal circumstances, when the working condition of monitoring camera is color state, IR-CUT should rest on color piece,
To penetrate visible light, while infrared light being stopped to enter.In embodiments of the present invention, third standard value passes through (R/G)colorIt indicates,
4th standard value passes through (B/G)colorIt indicating, the ratio between the color total value of the first color combination is indicated by (R/G), second
Ratio between the color total value of color combination indicates that third threshold value is indicated by Thd3 by (B/G), and the 4th threshold value passes through
Thd4 is indicated, if meeting | (R/G)-(R/G)color| < Thd3 and/or (B/G)-(B/G)color| < Thd4, then IR-CUT is normal.
It should be noted that being that IR-CUT is working properly under color state since third standard value and the 4th standard value are monitoring camera
Referential data shows that IR-CUT exists then when the ratio between the color total value in color combination is not much different with standard figures
When monitoring camera working condition is color state, color piece has been switched to, it is working properly.
It referring to figure 3., is the flow diagram of second embodiment provided in an embodiment of the present invention, step includes:
Step S133, if the working condition of the monitoring camera be black and white state, the first color combination color total value it
Between ratio and third standard value between difference between difference be less than the color that third threshold value and/or the second color combine
The difference of ratio and the 4th standard value between total value characterizes the IR-CUT and does not switch to white tiles to penetrate less than the 4th threshold value
Infrared light, the IR-CUT are abnormal.
Wherein, third standard value and the 4th standard value are IR-CUT when working normally under monitoring camera is color state
Referential data, in addition, under normal circumstances, when the working condition of monitoring camera is color state, IR-CUT should rest on color piece, with
Through visible light, while infrared light being stopped to enter.In embodiments of the present invention, third standard value passes through (R/G)colorIt indicates, the
Four standard values pass through (B/G)colorIt indicates, the ratio between the color total value of the first color combination is indicated by (R/G), the second face
The ratio between color total value that colour cell is closed indicates that third threshold value is indicated by Thd3 by (B/G), and the 4th threshold value passes through Thd4
It indicates, if meeting | (R/G)-(R/G)color| < Thd3 and/or (B/G)-(B/G)color| < Thd4, then IR-CUT is abnormal.It needs
Illustrate, the working condition of monitoring camera is black and white state at this time, and under normal circumstances, IR-CUT will stay on white tiles through red
Outer light, but color total value in the combination of the first color and the combination of the second color is shown to the image analysis of monitoring camera acquisition at this time
Between ratio be not much different with third standard value and the 4th standard value, illustrate the IR-CUT monitoring camera be black and white state under
Color piece has been switched to, has only penetrated visible light, therefore, it was demonstrated that the IR-CUT operation irregularity.
Step S134, if the working condition of the monitoring camera be black and white state, the first color combination color total value it
Between ratio and the difference of the first standard value be less than the ratio between the color total value that first threshold and/or the second color combine
It is less than second threshold with the difference of the second standard value, characterizes the IR-CUT and switch to white tiles through infrared light, the IR-
CUT is normal.
Wherein, it in monitoring camera is black and white state that the first standard value and the second standard value, which are the IR-CUT that measures in advance,
Referential data when lower normal work, in addition, under normal circumstances, when the working condition of monitoring camera is black and white state, IR-CUT
White tiles should be rested on, to promote brightness of image through infrared light.In embodiments of the present invention, the first standard value passes through (R/G)wbTable
Show, the second standard value passes through (B/G)wbIt indicating, the ratio between the color total value of the first color combination is indicated by (R/G), the
Ratio between the color total value of second colors combination indicates that first threshold is indicated by Thd1 by (B/G), and second threshold passes through
Thd2 is indicated, if meeting | (R/G)-(R/G)wb| < Thd1 and/or (B/G)-(B/G)wbThen IR-CUT is normal by | < Thd2.It is easy reason
Solution, when the image acquired under black and white state to monitoring camera is analyzed, ratio and the standard value phase of color total value
It is poor little, illustrate that the IR-CUT meets standard of the IR-CUT when working normally under monitoring camera is black and white state, and then prove
The IR-CUT is working properly.
It should be noted that in embodiments of the present invention, first threshold, second threshold, third threshold value, the 4th threshold value are more excellent
Ground is 0.05.
It can be seen that the IR-CUT method for detecting abnormality provided through the embodiment of the present invention, it is right in a variety of situations to be suitable for
Whether IR-CUT, which works normally, is detected, and detection means is simple and convenient, greatly improves working efficiency.
In addition, it should be noted that, during to IR-CUT producing line volume production, it is quasi- using this automatic detection environment (lamp box)
Whether normal really detect IR-CUT.But in actual use, monitoring camera is all hung on bar, can not construct the detection ring
Border (lamp box), therefore, in the case where the working condition of monitoring camera is color state, if R/G and B/G are greater than 80%, then it is assumed that
In this case, infrared light enters, IR-CUT is abnormal；Monitoring camera working condition be black and white state under and infrared lamp open very
In the case where strong, if R/G B/G one of both is less than 60%, then it is assumed that IR-CUT is abnormal.Individual complex scenes need people
Member's auxiliary confirmation, to improve the accuracy rate of detection.
It referring to figure 4., is that the functional module of abnormal detector 100 of IR-CUT provided in an embodiment of the present invention a kind of is shown
It is intended to, the abnormal detector 100 of the IR-CUT is applied in monitoring camera, which includes setup module 110, computing module
120 and analysis module 130.
Setup module 110, for respond monitoring camera described in the operation setting of user working condition be black and white state or
Color state.
In embodiments of the present invention, step S110 can be executed by setup module 110.
Computing module 120, the image for being acquired under the black and white state or color state according to the monitoring camera
Calculate separately the color total value of each color in the three primary colors of the above-mentioned all pixels point of image.
In embodiments of the present invention, step S120 can be executed by computing module 120.
Determining module 130 determines that the IR-CUT is for the ratio between the color total value according to the different colours
No exception
In embodiments of the present invention, step S130~S134 can be executed by determining module 130.
Since the method for detecting abnormality part in IR-CUT has been described in, details are not described herein.
In conclusion the method for detecting abnormality and device of a kind of IR-CUT provided in an embodiment of the present invention, IR-CUT peace
Loaded in monitoring camera, the monitoring camera is placed in the adjustable lamp box of intensity of infrared light and visible light, this method
The working condition for including: the operation setting monitoring camera of response user is black and white state or color state, and according to monitoring camera
The image acquired under black and white state or color state calculates separately on image each color in the three primary colors of all pixels point
Color total value, and then determine whether the IR-CUT is abnormal according to the ratio between the color total value of different colours.
In the present solution, only need user setting monitoring camera working condition be black and white state or color state, can from
Different colours in the three primary colors of all pixels point on the image that main analysis monitoring camera acquires under black and white state or color state
Ratio between total value, and then judge whether the IR-CUT is abnormal, considerably reduces the workload of people, improve work effect
Rate.
In several embodiments provided herein, it should be understood that disclosed device and method can also pass through
Other modes are realized.The apparatus embodiments described above are merely exemplary, for example, flow chart and block diagram in attached drawing
Show the device of multiple embodiments according to the present invention, the architectural framework in the cards of method and computer program product,
Function and operation.In this regard, each box in flowchart or block diagram can represent the one of a module, section or code
Part, a part of the module, section or code, which includes that one or more is for implementing the specified logical function, to be held
Row instruction.It should also be noted that function marked in the box can also be to be different from some implementations as replacement
The sequence marked in attached drawing occurs.For example, two continuous boxes can actually be basically executed in parallel, they are sometimes
It can execute in the opposite order, this depends on the function involved.It is also noted that every in block diagram and or flow chart
The combination of box in a box and block diagram and or flow chart can use the dedicated base for executing defined function or movement
It realizes, or can realize using a combination of dedicated hardware and computer instructions in the system of hardware.
In addition, each functional module in each embodiment of the present invention can integrate one independent portion of formation together
Point, it is also possible to modules individualism, an independent part can also be integrated to form with two or more modules.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to an entity or behaviour
Make with another entity or operate distinguish, without necessarily requiring or implying between these entities or operation there are it is any this
The actual relationship of kind or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to nonexcludability
Include so that include a series of elements process, method, article or equipment not only include those elements, but also
Including other elements that are not explicitly listed, or further include for this process, method, article or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described want
There is also other identical elements in the process, method, article or equipment of element.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should also be noted that similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and explained.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of method for detecting abnormality of IR-CUT, which is characterized in that the IR-CUT is installed in monitoring camera, the monitoring
Camera is placed in adjustable infrared light and the lamp box of visible light relative intensity, which comprises
The working condition for responding monitoring camera described in the operation setting of user is black and white state or color state；
All pictures on image are calculated separately according to the image that the monitoring camera acquires under the black and white state or color state
The color total value of each color in the three primary colors of vegetarian refreshments；
Determine whether the IR-CUT is abnormal according to the ratio between the color total value of different colours.
2. the method as described in claim 1, which is characterized in that the IR-CUT includes color piece, and the coloured silk piece is for only penetrating
Visible light,
Ratio between the color total value according to the different colours determines whether Yi Chang step includes: the IR-CUT
If the working condition of the monitoring camera is color state, the ratio and first between the color total value of the first color combination
Difference between standard value is less than first threshold；And/or second color combination color total value between ratio and the second standard
The difference of value is less than second threshold, characterizes the IR-CUT and does not switch to color piece only to penetrate visible light, the IR-CUT is abnormal.
3. the method as described in claim 1, which is characterized in that the IR-CUT includes color piece, and the coloured silk piece is for only penetrating
Visible light,
Ratio between the color total value according to the different colours determines whether Yi Chang step includes: the IR-CUT
If the working condition of the monitoring camera is color state, ratio and third between the color total value of the first color combination
Difference between standard value is less than ratio and the 4th standard between the color total value that third threshold value and/or the second color combine
The difference of value characterizes the IR-CUT and switches to color piece only to penetrate visible light, the IR-CUT is normal less than the 4th threshold value.
4. the method as described in claim 1, which is characterized in that the IR-CUT includes white tiles, and the white tiles is used for through red
Outer light and visible light,
Ratio between the color total value according to the different colours determines whether Yi Chang step includes: the IR-CUT
If the working condition of the monitoring camera is black and white state, ratio and third between the color total value of the first color combination
The difference between difference between standard value is less than the ratio between the color total value that third threshold value and/or the second color combine
Difference with the 4th standard value characterizes the IR-CUT and does not switch to white tiles through infrared light, the IR- less than the 4th threshold value
CUT is abnormal.
5. the method as described in claim 1, which is characterized in that the IR-CUT includes white tiles, and the white tiles is used for through red
Outer light and visible light,
Ratio between the color total value according to the different colours determines whether Yi Chang step includes: the IR-CUT
If the working condition of the monitoring camera is black and white state, the ratio and first between the color total value of the first color combination
The difference of standard value is less than ratio between the color total value that first threshold and/or the second color combine and the second standard value
Difference is less than second threshold, characterizes the IR-CUT and switches to white tiles so that through infrared light, the IR-CUT is normal.
6. the method as described in claim 2-5 any one, which is characterized in that first standard value and the second standard value are
When the working condition of the monitoring camera is black and white state, the numerical value that the IR-CUT is acquired when working normally, the third mark
Quasi- value and the 4th standard value are the working condition of the monitoring camera when being color state, and when IR-CUT normal work acquires
Numerical value.
7. a kind of abnormal detector of IR-CUT, which is characterized in that the IR-CUT is installed in monitoring camera, the monitoring
Camera is placed in adjustable infrared light and the lamp box of visible light relative intensity, and described device includes:
Setup module, the working condition for responding monitoring camera described in the operation setting of user are black and white state or colored shape
State；
Computing module, the image for being acquired under the black and white state or color state according to the monitoring camera calculate separately
On image in the three primary colors of all pixels point each color color total value；
Analysis module determines whether the IR-CUT is abnormal for the ratio between the color total value according to the different colours.
8. device as claimed in claim 7, which is characterized in that the IR-CUT includes color piece, and the coloured silk piece is for only penetrating
Visible light,
If the analysis module is color state, the color total value of the first color combination for the working condition of the monitoring camera
Between ratio and the first standard value between difference be less than first threshold；And/or second color combination color total value between
Ratio and the difference of the second standard value be less than second threshold, characterize the IR-CUT and do not switch to color piece only through visible
Light, the IR-CUT are abnormal.
9. device as claimed in claim 7, which is characterized in that the IR-CUT includes white tiles, and the white tiles is used for through red
Outer light and visible light,
If the analysis module is black and white state, the color total value of the first color combination for the working condition of the monitoring camera
Between ratio and third standard value between difference be less than between the color total value that third threshold value and/or the second color combine
Ratio and the 4th standard value difference less than the 4th threshold value, characterize the IR-CUT and do not switch to white tiles with through infrared light,
The IR-CUT is abnormal.
10. device as claimed in claim 8 or 9, which is characterized in that first standard value and the second standard value are the prison
When the working condition for controlling camera is black and white state, the numerical value that the acquires when IR-CUT is worked normally, the third standard value and
4th standard value is the working condition of the monitoring camera when being color state, the number that the IR-CUT is acquired when working normally
Value.
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