CN109040761A - A kind of monitoring on-wall system with encrypted watermark - Google Patents
A kind of monitoring on-wall system with encrypted watermark Download PDFInfo
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- CN109040761A CN109040761A CN201811082874.0A CN201811082874A CN109040761A CN 109040761 A CN109040761 A CN 109040761A CN 201811082874 A CN201811082874 A CN 201811082874A CN 109040761 A CN109040761 A CN 109040761A
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- watermark
- decoder
- dot matrix
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- monitoring
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/46—Embedding additional information in the video signal during the compression process
- H04N19/467—Embedding additional information in the video signal during the compression process characterised by the embedded information being invisible, e.g. watermarking
-
- 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
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Editing Of Facsimile Originals (AREA)
- Image Processing (AREA)
Abstract
The invention discloses a kind of monitoring on-wall system with encrypted watermark, including main control unit, watermarking images generation unit, storage unit, database module, network module and decoder, watermarking images generation unit, storage unit, database module is separately connected main control unit, main control unit connects network module by dot matrix server, decoder is bi-directionally connected with network module, working principle of the present invention is simple, after generating watermark by way of dot matrix server and watermark patterns generation unit, it is superimposed upon on video monitoring, achieve the purpose that occur to track when pirates shoot to trace to the source, solves the problems, such as the source retrospect of illegal video, convenient for users to fast finding source and the person liable of image leakage.
Description
Technical field
The present invention relates to technical field of video monitoring, specially a kind of monitoring on-wall system with encrypted watermark.
Background technique
Applying for video monitoring is more more and more universal in today's society, covers each and every one corner in city and various facilities.Video
The problem of life that safety also has become topic concerned by people and the people, which produces, to be closely connected, individual privacy is slowly convex
Reveal and.
Video monitoring shows that the cryptographic means of various video monitoring images do not have substantially at present, also studies without professional institution
And research and development.And video user gradually increases, public security, traffic, prison, municipal administration, community, school and enterprises and institutions etc. are in video
Aspect is using more and more extensive.As city intelligent management level improves, each department shares the case of camera review increasingly
Extensively.A large amount of staff's contact and video image is applied, is related to the security risk of unit secret and individual privacy also increasingly
Increase.The improper leakage of image and outflow in order to prevent, increase encrypted watermark on the image, can trace the improper of image and let out
The source of dew and outflow, encrypted watermark effectively prevention work personnel can pass through mobile phone or other capture apparatus shooting image or view
Frequently, the improper leakage and outflow of image or video can effectively be taken precautions against.
Summary of the invention
The purpose of the present invention is to provide a kind of monitoring on-wall system with encrypted watermark, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the invention provides the following technical scheme: a kind of monitoring on-wall system with encrypted watermark,
Including main control unit, watermarking images generation unit, storage unit, database module, network module and decoder, the watermark figure
As generation unit, storage unit, database module are separately connected main control unit, the main control unit is connected by dot matrix server
Network module, the decoder are bi-directionally connected with network module.
Preferably, the decoder includes code stream abnormal determination module and hidden processing module；The code stream abnormal determination
Module, it is different for determination after during decoder is decoded video image compression data flow, detecting code stream exception
The normal macro block and abnormal macro block determined is as unit of data packet, and by the position informing of abnormal macro block to the hidden processing
Module；The hidden processing module be used for from the data from the abnormal macro block position that the code stream abnormal determination module is known into
The hidden processing of row.
Preferably, the main control unit uses the single-chip microcontroller of model N76E003.
Preferably, watermark superposition method the following steps are included:
A, watermarking images generation unit generates dynamic dot matrix watermark information；
B, watermark information is sent to decoder by network module by dot matrix server；
C, watermark information is added to and shows on image by decoder；
D, decoder will be superimposed successful watermark information and feed back to dot matrix server, and is transmitted in storage unit and stores；
E, dot matrix server does not receive feedback information at the appointed time, then retransmits watermark information coding.
Preferably, watermark retroactive method is as follows:
A, leakage image frame is imported into watermarking images generation unit；
B, by watermarking images generation unit, the watermark information coding of image is identified；
C, watermark information coding is compared by dot matrix server, finds out time, the location information of image；
D, pass through time, location information, the source of retrospect image leakage.
Compared with prior art, the beneficial effects of the present invention are:
(1) working principle of the present invention is simple, generates watermark by way of dot matrix server and watermark patterns generation unit
Afterwards, it is superimposed upon on video monitoring and achievees the purpose that occur to track when pirates shoot to trace to the source, solve the source retrospect of illegal video
Problem, convenient for users to fast finding source and the person liable of image leakage.
(2) decoder that uses of the present invention can effectively inhibit position be connected or position similar in exception macro block to it is adjacent just
The adverse effect of the adverse effect of the decoding process of normal macro block and abnormal macro block to the decoding process of subsequent normal macro block, is improved
The whole viewing effect of decoding video.
Detailed description of the invention
Fig. 1 is invention's principle block diagram；
Fig. 2 is inventive decoder schematic diagram；
Fig. 3 is watermark superposition method flow diagram of the present invention；
Fig. 4 is watermark retroactive method flow chart of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution referring to FIG. 1-2: a kind of monitoring on-wall system with encrypted watermark, packet
Include main control unit 1, watermarking images generation unit 2, storage unit 3, database module 4, network module 5 and decoder 6, the water
Watermark image generation unit 2, storage unit 3, database module 4 are separately connected main control unit 1, and the main control unit 1 passes through dot matrix
Server 7 connects network module 5, and the decoder 6 is bi-directionally connected with 5 pieces of network mould；Wherein, main control unit 1 uses model
The single-chip microcontroller of N76E003, N76E003 may operate at two kinds of low-power consumption mode-idle modes and power-down mode, can pass through software
Which kind of mode selection operates in.When idle mode, chip master clock is closed, but partial function module is still run.Power-down mode
Lower chip whole clock closing ensures that chip power-consumption reaches minimum.In the normal mode of operation, master clock frequency elimination side also may be selected
Formula work, it is ensured that flexibly used between power consumption and performance.Functional module high-effect, abundant and configuration, N76E003 can be flexible
For various applications.
In the present invention, decoder 6 includes code stream abnormal determination module 8 and hidden processing module 9；The code stream abnormal determination
Module 8, it is different for determination after during decoder is decoded video image compression data flow, detecting code stream exception
Normal macro block, and the abnormal macro block determined is as unit of data packet, and by the position informing of abnormal macro block to the shelter
Manage module；The hidden processing module 9 is used for the number from the abnormal macro block position that the code stream abnormal determination module is known
According to the hidden processing of progress.The decoder that the present invention uses can effectively inhibit position be connected or position similar in exception macro block to phase
The adverse effect of the decoding process of adjacent normal macro block, and abnormal macro block is to the bad shadow of the decoding process of subsequent normal macro block
It rings, improves the whole viewing effect of decoding video.
Increase dynamic point-like matrix watermark on image or video by dot matrix server and corresponding decoder, uniformly
The main positions of video image are distributed in, the watermark of each image is done different watermarks according to different screens and time and is arranged.
It is just logged together together with watermark when this sampled images is ingested, the lattice arrangement information of watermark is inputted when tracing the leakage of a state or party secret,
Computer can find out when the image in which platform display equipment is by pirates shoot by dot matrix server.
The point-like matrix watermark that dot matrix server is transmitted to decoder is 8 byte datas of 16 systems, and decoder is according to point
The information of battle array watermark setting shows dot matrix watermark；Watermark data is described using 8 bytes, 16 points of every a line, 2 bytes
The data of 16 systems indicate that display dot matrix is 1, be not shown as 0, in total 4 row, 8 bytes.
As shown in figure 3, watermark superposition method of the invention the following steps are included:
A, watermarking images generation unit generates dynamic dot matrix watermark information；
B, watermark information is sent to decoder by network module by dot matrix server；
C, watermark information is added to and shows on image by decoder；
D, decoder will be superimposed successful watermark information and feed back to dot matrix server, and is transmitted in storage unit and stores；
E, dot matrix server does not receive feedback information at the appointed time, then retransmits watermark information coding.
As shown in figure 4, watermark retroactive method of the invention is as follows:
A, leakage image frame is imported into watermarking images generation unit；
B, by watermarking images generation unit, the watermark information coding of image is identified；
C, watermark information coding is compared by dot matrix server, finds out time, the location information of image；
D, pass through time, location information, the source of retrospect image leakage.
Watermarking images generation module is installed by server, the watermark superposition of generation is to realize encryption water on monitor video
A kind of method of the monitoring on-wall system of print.The watermark patterns of installation on the server generate software can be raw in the different periods
At different watermark informations, realizes and distinguish different time and different displays.
In conclusion working principle of the present invention is simple, it is raw by way of dot matrix server and watermark patterns generation unit
After watermark, it is superimposed upon on video monitoring and achievees the purpose that occur to track when pirates shoot to trace to the source, solve coming for illegal video
Source traces problem, convenient for users to fast finding source and the person liable of image leakage.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of monitoring on-wall system with encrypted watermark, it is characterised in that: it is generated including main control unit (1), watermarking images
Unit (2), storage unit (3), database module (4), network module (5) and decoder (6), the watermarking images generation unit
(2), storage unit (3), database module (4) are separately connected main control unit (1), and the main control unit (1) passes through dot matrix service
Device (7) connects network module (5), and the decoder (6) is bi-directionally connected with network module (5).
2. a kind of monitoring on-wall system with encrypted watermark according to claim 1, it is characterised in that: the decoder
It (6) include code stream abnormal determination module (8) and hidden processing module (9)；The code stream abnormal determination module (8), for solving
During code device is decoded video image compression data flow, abnormal macro block is determined after detecting code stream exception, and really
The abnormal macro block made is as unit of data packet, and by the position informing of abnormal macro block to the hidden processing module；It is described hidden
It is hidden for carrying out to the data at the abnormal macro block position from the code stream abnormal determination module, known to cover processing module (9)
Processing.
3. a kind of monitoring on-wall system with encrypted watermark according to claim 1, it is characterised in that: the master control list
First (1) uses the single-chip microcontroller of model N76E003.
4. realizing a kind of application method of monitoring on-wall system with encrypted watermark described in claim 1, it is characterised in that:
Watermark superposition method the following steps are included:
A, watermarking images generation unit generates dynamic dot matrix watermark information；
B, watermark information is sent to decoder by network module by dot matrix server；
C, watermark information is added to and shows on image by decoder；
D, decoder will be superimposed successful watermark information and feed back to dot matrix server, and is transmitted in storage unit and stores；
E, dot matrix server does not receive feedback information at the appointed time, then retransmits watermark information coding.
5. a kind of application method of monitoring on-wall system with encrypted watermark according to claim 5, it is characterised in that:
Watermark retroactive method is as follows:
A, leakage image frame is imported into watermarking images generation unit；
B, by watermarking images generation unit, the watermark information coding of image is identified；
C, watermark information coding is compared by dot matrix server, finds out time, the location information of image；
D, pass through time, location information, the source of retrospect image leakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811082874.0A CN109040761A (en) | 2018-09-17 | 2018-09-17 | A kind of monitoring on-wall system with encrypted watermark |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811082874.0A CN109040761A (en) | 2018-09-17 | 2018-09-17 | A kind of monitoring on-wall system with encrypted watermark |
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| CN109040761A true CN109040761A (en) | 2018-12-18 |
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| CN201811082874.0A Pending CN109040761A (en) | 2018-09-17 | 2018-09-17 | A kind of monitoring on-wall system with encrypted watermark |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111294543A (en) * | 2018-11-21 | 2020-06-16 | 慧盾信息安全科技（苏州）股份有限公司 | System and method for video monitoring photographing protection |
| CN116506558A (en) * | 2023-06-26 | 2023-07-28 | 中科微点技术有限公司 | Method and device for communication based on dot matrix code and digital watermark image |
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| CN108040188A (en) * | 2017-10-31 | 2018-05-15 | 安徽四创电子股份有限公司 | A kind of video source tracing method based on dominant watermark |
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| WO2002023481A1 (en) * | 2000-09-15 | 2002-03-21 | Trustcopy Pte Ltd. | Optical watermark |
| CN1708084A (en) * | 2004-06-05 | 2005-12-14 | 三星电子株式会社 | Apparatus for identifying a photographer of an image |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111294543A (en) * | 2018-11-21 | 2020-06-16 | 慧盾信息安全科技（苏州）股份有限公司 | System and method for video monitoring photographing protection |
| CN116506558A (en) * | 2023-06-26 | 2023-07-28 | 中科微点技术有限公司 | Method and device for communication based on dot matrix code and digital watermark image |
| CN116506558B (en) * | 2023-06-26 | 2023-09-26 | 中科微点技术有限公司 | Method and device for communication based on dot matrix code and digital watermark image |
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