CN105847743A - Video monitoring device and monitoring method - Google Patents
Video monitoring device and monitoring method Download PDFInfo
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- CN105847743A CN105847743A CN201610183266.3A CN201610183266A CN105847743A CN 105847743 A CN105847743 A CN 105847743A CN 201610183266 A CN201610183266 A CN 201610183266A CN 105847743 A CN105847743 A CN 105847743A
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- China
- Prior art keywords
- frame
- gray value
- video
- contrast images
- image
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/183—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
- H04N7/185—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source from a mobile camera, e.g. for remote control
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
- G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
Abstract
The invention relates to monitoring equipment optimization, and discloses a video monitoring device. The video monitoring device (1) comprises a camera device (1) for shooting video images, and a processing device (2) which is connected with the camera device (1) for processing and analyzing the video images from the camera device (1) to give off alarm by determining the change of gray values. The video monitoring device and monitoring method and are applicable to mobile devices and have the advantages of simple usage and portability.
Description
Technical field
The present invention relates to monitoring device optimization, in particular it relates to a kind of video monitoring apparatus and a kind of video frequency monitoring method.
Background technology
Traditional monitoring system includes front-end camera, transmission cable, video monitoring platform.Along with Intelligent mobile equipment
Universal, we can be with mobile device by realizing this function.A video monitoring equipment inconvenience (example is increased in some occasion
As wanted to monitor whether patient revives in hospital), so need mobile device to be served as supervising device temporarily.Therefore for movement
What becomes supervising device and how mobile device monitors and become the problem needing to solve in equipment utilization.
Summary of the invention
It is an object of the invention to provide a kind of video monitoring apparatus and a kind of video frequency monitoring method, this video monitoring apparatus and
Video frequency monitoring method may apply in mobile device, simple portable easy of use.
To achieve these goals, the present invention provides a kind of video monitoring apparatus, and this video monitoring apparatus includes: shooting dress
Put, be used for shooting video image；And processing means, it is connected with described camera head, for from described camera head
Video image carries out Treatment Analysis and reports to the police will pass through the change judging gray value.
Preferably, described processing means is for obtaining base image frame from described video image；Calculate and store described
The gray value of base image frame；Contrast images frame is obtained from described video image；Calculate the gray value of described contrast images frame；
Compare gray value and the gray value of described contrast images frame of described base image frame；And the gray scale at described base image frame
Value is reported to the police time different with the gray value of described contrast images frame.
Preferably, when the gray value of described base image frame is identical with the gray value of described contrast images frame again from institute
State acquisition contrast images frame in video image, and perform described comparison.
Preferably, obtain contrast images frame to include: the interval scheduled time obtains picture frame with picture frame as a comparison.
Preferably, described base image frame is the I frame of first group of image of described video image, obtains contrast images frame bag
Include: obtain the I frame of next group image with picture frame as a comparison.
The present invention also provides for a kind of video frequency monitoring method, and this video frequency monitoring method includes: shooting video image；And to regarding
Frequently image carries out Treatment Analysis and reports to the police will pass through the change judging gray value.
Preferably, video image is carried out Treatment Analysis with will pass through the change that judges gray value to carry out warning include with
Lower step: obtain base image frame from described video image；Calculate and store the gray value of described base image frame；From described
Video image obtains contrast images frame；Calculate the gray value of described contrast images frame；The relatively gray scale of described base image frame
Value and the gray value of described contrast images frame；And in the gray value of described base image frame and the gray scale of described contrast images frame
Value is reported to the police time different.
Preferably, when the gray value of described base image frame is identical with the gray value of described contrast images frame again from institute
State acquisition contrast images frame in video image, and perform described comparison.
Preferably, obtain contrast images frame to include: the interval scheduled time obtains picture frame with picture frame as a comparison.
Preferably, described base image frame is the I frame of first group of image of described video image, obtains contrast images frame bag
Include: obtain the I frame of next group image with picture frame as a comparison.
By technique scheme, use video monitoring apparatus and the video frequency monitoring method of present invention offer, by shooting
Device shooting video image, utilizes the video image that processing means Treatment Analysis camera head shoots, and by judging gray value
Change judge whether to report to the police.Video monitoring apparatus and video frequency monitoring method that the present invention provides may apply to mobile
In equipment, simple portable easy of use.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of description, with following tool
Body embodiment is used for explaining the present invention together, but is not intended that limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the video monitoring apparatus that the present invention provides；
Fig. 2 is the flow chart of the first embodiment of the video frequency monitoring method that the present invention provides；
Fig. 3 is the flow chart of the second embodiment of the video frequency monitoring method that the present invention provides.
Description of reference numerals
1 camera head 2 processing means
Detailed description of the invention
Below in conjunction with accompanying drawing, the detailed description of the invention of the present invention is described in detail.It should be appreciated that this place is retouched
The detailed description of the invention stated is merely to illustrate and explains the present invention, is not limited to the present invention.
Fig. 1 is the structural representation of the video monitoring apparatus that the present invention provides.As it is shown in figure 1, the present invention provides one to regard
Frequently supervising device, this video monitoring apparatus includes: camera head 1, is used for shooting video image；And processing means 2, with described
Camera head 1 connects, for the video image from described camera head 1 is carried out Treatment Analysis will pass through judgement gray value
Change report to the police.
This video monitoring apparatus can apply in mobile device, this video monitoring certainly such as such as mobile phone, palm PC etc.
Device can also be individually present and not depend on mobile device.The principle that above-mentioned processing means 2 carries out Treatment Analysis is picture frame
Comparison, the present invention can be to use in the way of movement images frame gray value, if gray scale is identical, illustrate that working as the first two time point does not has
There is image change, it is not necessary to report to the police；If the gray scale of two time points is different, image change is described, has needed to report to the police.
Above-mentioned processing mode is described as follows:
Processing means (2) is used for: obtain base image frame from video image；Calculate and store described base image frame
Gray value；Contrast images frame is obtained from video image；Calculate the gray value of described contrast images frame；And compare described basis
The gray value of picture frame and the gray value of described contrast images frame, in gray value and the described contrast images of described base image frame
Again obtain contrast images frame when the gray value of frame is identical and perform described comparison；Gray value and institute at described base image frame
Report to the police when stating the gray value difference of contrast images frame.
As this video monitoring apparatus is applied in mobile phone, by very convenient use.Needs when, by mobile phone (with
The video monitoring apparatus of the present invention) alignment needs the region of monitoring, and opens the video monitoring function of mobile phone, now camera head
1 starts to shoot video image.Processing means 2 obtains base image frame from the video image that camera head 1 shoots, and calculates this base
The gray value of plinth picture frame, stores the gray value of this base image frame in buffer (buffer).Then, processing means 2 from
Video image obtains contrast images frame, calculates the gray value of this contrast images frame, and by the gray value of this contrast images frame with
In buffer, the gray value contrast of the base image frame of storage, if gray value is different, then reports to the police；If gray value phase
With, processing means 2 obtains contrast images frame again from video image, calculates gray value and the gray value with base image frame
Contrast, until finding that gray value difference carries out reporting to the police or video monitoring order is stopped.When gray value is identical, process
Device 2 can also select the gray value storing this contrast images frame identical with the gray value of base image frame in buffer.
Owing to base image frame is identical with the gray value of contrast images frame, therefore upper once contrast time, with storage foundation drawing
As the gray value contrast of the gray value of frame or the contrast images frame of storage can realize the purpose of the present invention.
For acquisition base image frame mentioned above and acquisition contrast images frame, hereafter will be described in detail.In order to just
In the description below, at this it is to be understood that picture (i.e. frame) is divided into I, P, B tri-kinds by mpeg encoded, I is in-line coding
Frame, P is forward predicted frame, and B is two-way interpolation frame.Simply, I frame is a complete picture, and P frame and B frame recording
It it is the change relative to I frame.Do not have I frame, P frame and B frame just cannot decode.If static I frame mode, GOP (Group of
Pictures) form is it has been determined that the interval of I frame is fixed；And dynamic I frame technique refers at picture geo-stationary, do not have
The when of occurring mobile object, video camera I frame period increases automatically.After there is mobile object, the I frame period of video camera is automatic
Reduce.
In the first embodiment, obtain contrast images frame to include: the interval scheduled time obtains picture frame with as a comparison
Picture frame.In this kind of embodiment, processing means 2 only considers that being spaced the scheduled time (can set) obtains contrast images frame,
And not considering other problem, if such as base image frame is I frame, then contrast images frame can be that P frame can also be for B frame.
So it is understood that processing means 2 obtains a contrast images frame at predetermined time intervals and calculates gray value, with basis
The gray value contrast of picture frame.
In this second embodiment, described base image frame is the I frame of first group of image of described video image, and it is right to obtain
Include than picture frame: obtain the I frame of next group image with picture frame as a comparison.In this kind of embodiment, contrast images frame
Being all I frame (intra-coded frame, majority is the first frame of this group image) with base image frame, processing means 2 is obtaining first group
After the I frame of image, only obtain after I frame picture frame as a comparison and calculate gray value, with the gray scale with base image frame
Value contrast.
When gray value difference, video monitoring apparatus can use pre-set type of alarm to report to the police, therefore
This video monitoring apparatus can also comprise alarm device, to carry out sound and light alarm etc..If it addition, video monitoring apparatus is applied to
In mobile phones etc., type of alarm for making a phone call and/or can also be sent short messages.
The present invention also provides for a kind of video frequency monitoring method, and this video frequency monitoring method includes: shooting video image；And to regarding
Frequently image carries out Treatment Analysis and reports to the police will pass through the change judging gray value.
Video image is carried out Treatment Analysis and comprises the following steps to carry out warning will pass through the change judging gray value:
Base image frame is obtained from video image；Calculate and store the gray value of described base image frame；Obtain from video image
Contrast images frame；Calculate the gray value of described contrast images frame；And the relatively gray value of described base image frame and described right
The ratio gray value of picture frame, obtains again when the gray value of described base image frame is identical with the gray value of described contrast images frame
Take contrast images frame and perform described comparison；The gray value of described base image frame and described contrast images frame gray value not
Report to the police simultaneously.
Said method is particularly as follows: shoot video image；From the video image of shooting, obtain base image frame, calculate this base
The gray value of plinth picture frame, stores the gray value of this base image frame in buffer (buffer).Then, from the video of shooting
Image obtains contrast images frame, calculates the gray value of this contrast images frame, and by the gray value of this contrast images frame and caching
In device, the gray value contrast of the base image frame of storage, if gray value is different, then reports to the police；If gray value is identical, then
The secondary contrast images frame that obtains from video image, calculating gray value and the gray value with base image frame contrast, until finding
Till gray value difference carries out reporting to the police or video monitoring order is stopped.
Fig. 2 is the flow chart of the first embodiment of the video frequency monitoring method that the present invention provides.As in figure 2 it is shown, first
In embodiment, obtain contrast images frame and include: the interval scheduled time obtains picture frame with picture frame as a comparison.
This embodiment method particularly includes:
Shooting video image；From the video image of shooting, obtain base image frame, calculate the gray scale of this base image frame
Value, stores the gray value of this base image frame in buffer (buffer).Then, the interval scheduled time obtains contrast images
Frame, calculates the gray value of this contrast images frame, and by the gray value of this contrast images frame and the base image of storage in buffer
The gray value contrast of frame, if gray value is different, then reports to the police；If gray value is identical, the interval scheduled time is again from regarding
Image obtains contrast images frame frequently, calculates gray value and the gray value with base image frame contrasts, until finding gray value
Till difference carries out reporting to the police or video monitoring order is stopped.
Fig. 3 is the flow chart of the second embodiment of the video frequency monitoring method that the present invention provides.As it is shown on figure 3, second
In embodiment, described base image frame is the I frame of first group of image of video image, obtains contrast images frame and includes: obtains
The I frame of next group image is with picture frame as a comparison.
This embodiment method particularly includes:
Shooting video image；(the in-line coding of first group of image of base image frame is obtained from the video image of shooting
Frame), calculate the gray value of this base image frame, store the gray value of this base image frame in buffer (buffer).Then,
Obtain I frame of next group image with picture frame as a comparison, calculate the gray value of this contrast images frame, and by this contrast images frame
Gray value and buffer in the gray value contrast of base image frame of storage, if gray value is different, then report to the police；If
Gray value is identical, again obtains the I frame of next group image from video image, calculates gray value and the ash with base image frame
Angle value contrasts, until finding that gray value difference carries out reporting to the police or video monitoring order is stopped.
By technique scheme, use video monitoring apparatus and the video frequency monitoring method of present invention offer, by shooting
Device shooting video image, utilizes the video image that processing means Treatment Analysis camera head shoots, and by judging gray value
Change judge whether to report to the police.Video monitoring apparatus and video frequency monitoring method that the present invention provides may apply to mobile
In equipment, simple portable easy of use.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention is not limited to above-mentioned reality
Execute the detail in mode, in the technology concept of the present invention, technical scheme can be carried out multiple letter
Monotropic type, these simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, at not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to various can
The compound mode of energy illustrates the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as it is without prejudice to this
The thought of invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. a video monitoring apparatus, it is characterised in that this video monitoring apparatus includes:
Camera head (1), is used for shooting video image；And
Processing means (2), is connected with described camera head (1), for carrying out the video image from described camera head (1)
Treatment Analysis is reported to the police will pass through the change judging gray value.
Video monitoring apparatus the most according to claim 1, it is characterised in that described processing means (2) is used for:
Base image frame is obtained from described video image；
Calculate and store the gray value of described base image frame；
Contrast images frame is obtained from described video image；
Calculate the gray value of described contrast images frame；
Compare gray value and the gray value of described contrast images frame of described base image frame；And
Report to the police when the gray value of described base image frame is different with the gray value of described contrast images frame.
Video monitoring apparatus the most according to claim 2, it is characterised in that in gray value and the institute of described base image frame
State the gray value of contrast images frame identical time from described video image, again obtain contrast images frame, and perform described comparison.
Video monitoring apparatus the most according to claim 3, it is characterised in that
Obtain contrast images frame to include: the interval scheduled time obtains picture frame with picture frame as a comparison.
Video monitoring apparatus the most according to claim 3, it is characterised in that described base image frame is described video image
The I frame of first group of image,
Obtain contrast images frame to include: obtain the I frame of next group image with picture frame as a comparison.
6. a video frequency monitoring method, it is characterised in that this video frequency monitoring method includes:
Shooting video image；And
Video image is carried out Treatment Analysis report to the police will pass through the change judging gray value.
Video frequency monitoring method the most according to claim 1, it is characterised in that video image is carried out Treatment Analysis to lead to
Cross the change judging gray value and comprise the following steps to carry out warning:
Base image frame is obtained from described video image；
Calculate and store the gray value of described base image frame；
Contrast images frame is obtained from described video image；
Calculate the gray value of described contrast images frame；
Compare gray value and the gray value of described contrast images frame of described base image frame；And
Report to the police when the gray value of described base image frame is different with the gray value of described contrast images frame.
Video frequency monitoring method the most according to claim 7, it is characterised in that in gray value and the institute of described base image frame
State the gray value of contrast images frame identical time from described video image, again obtain contrast images frame, and perform described comparison.
Video frequency monitoring method the most according to claim 8, it is characterised in that
Obtain contrast images frame to include: the interval scheduled time obtains picture frame with picture frame as a comparison.
Video frequency monitoring method the most according to claim 8, it is characterised in that described base image frame is described video figure
The I frame of first group of image of picture,
Obtain contrast images frame to include: obtain the I frame of next group image with picture frame as a comparison.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610183266.3A CN105847743A (en) | 2016-03-28 | 2016-03-28 | Video monitoring device and monitoring method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610183266.3A CN105847743A (en) | 2016-03-28 | 2016-03-28 | Video monitoring device and monitoring method |
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| CN105847743A true CN105847743A (en) | 2016-08-10 |
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| CN201610183266.3A Pending CN105847743A (en) | 2016-03-28 | 2016-03-28 | Video monitoring device and monitoring method |
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Cited By (1)
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| CN107085902A (en) * | 2017-04-26 | 2017-08-22 | 深圳先进技术研究院 | A kind of intelligent video multi-point monitoring method and system |
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