CN110163100B - Anti-photographing display - Google Patents
Anti-photographing display Download PDFInfo
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- CN110163100B CN110163100B CN201910308248.7A CN201910308248A CN110163100B CN 110163100 B CN110163100 B CN 110163100B CN 201910308248 A CN201910308248 A CN 201910308248A CN 110163100 B CN110163100 B CN 110163100B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/82—Protecting input, output or interconnection devices
- G06F21/84—Protecting input, output or interconnection devices output devices, e.g. displays or monitors
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/10—Terrestrial scenes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/20—Movements or behaviour, e.g. gesture recognition
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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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
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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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
- H04N23/80—Camera processing pipelines; Components thereof
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Abstract
The invention discloses a photographing-proof display, which comprises a built-in camera shooting acquisition module, a built-in identification judgment module and a built-in control module, wherein: the built-in camera shooting acquisition module adopts a camera to shoot and capture a front image of the display screen in real time and transmits the front image of the display screen to the built-in recognition judgment module; the built-in identification judgment module carries out identification judgment on the photographing equipment and the photographing action, records the photographing action and outputs a judgment result to the built-in control module; and the built-in control module controls the power supply circuit of the display screen according to the judgment result, so that the automatic arming and disarming functions are realized. Compared with the prior art, the invention has the following positive effects: the invention can monitor and automatically identify photographing equipment such as mobile phones and photographing actions in real time, and record the photographing actions. The invention effectively prevents the problem of information leakage caused by photographing the display screen, protects the screen information in real time, and improves the safety of the information, the accuracy of threat early warning and the timeliness of protection.
Description
Technical Field
The invention belongs to the technical field of computer information security, and particularly relates to an anti-photographing display.
Background
With the popularization of portable devices such as mobile phones with a photographing function, photographing and stealing information on computer screen contents through devices such as mobile phones is the most common and easiest way to cause information leakage. However, means for preventing screen shooting is relatively lacking at present, and the practicability is not strong.
At present, a protection means for preventing photo taking is to add watermarks to confidential contents displayed on a screen, and the method reduces the risk of information stealing to a certain extent, but because some files have special formats, the embedding of watermarks is inconvenient. In addition, the method is relatively passive for preventing the information from being stolen by photographing, and the occurrence of an event of stealing the information by photographing cannot be actively prevented.
How to provide more universal photographing-proof application, ensure that screen information is not illegally photographed or stolen, and realize long-time monitoring, active protection and real-time early warning of the screen information, which becomes a problem to be solved urgently in the field of information security.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a photographing-proof display which mainly comprises a built-in camera shooting acquisition module, a built-in identification judgment module and a control module, can monitor and automatically identify photographing equipment such as a mobile phone and photographing actions in real time, records the photographing actions, and has an active fortification function and an automatic disarming function. In addition, the display can be internally provided with an automatic alarm module to carry out stand-alone alarm and can also be sent to a monitoring center to realize a remote alarm function. The anti-photographing display can effectively prevent the problem of information leakage caused by photographing the display screen, and can protect screen information in real time, so that the safety of the information, the accuracy of threat early warning and the timeliness of protection are improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a prevent display of shooing, includes built-in collection module of making a video recording, built-in discernment decision module and built-in control module, wherein: the built-in camera shooting acquisition module adopts a camera to shoot and capture a front image of the display screen in real time and transmits the front image of the display screen to the built-in recognition judgment module; the built-in identification judgment module carries out identification judgment on the photographing equipment and the photographing action, records the photographing action and outputs a judgment result to the built-in control module; and the built-in control module controls the power supply circuit of the display screen according to the judgment result, so that the automatic arming and disarming functions are realized.
Compared with the prior art, the invention has the following positive effects:
the anti-shooting display can monitor and automatically identify shooting equipment such as a mobile phone and shooting actions in real time, record the shooting actions, and simultaneously has an active arming function and an automatic disarming function. In addition, the display can be internally provided with an automatic alarm module to carry out stand-alone alarm and can also be sent to a monitoring center to realize a remote alarm function. The invention effectively prevents the problem of information leakage caused by photographing the display screen, protects the screen information in real time, and improves the safety of the information, the accuracy of threat early warning and the timeliness of protection.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of functional modules of an anti-theft display;
FIG. 2 is a schematic diagram of a decision process of the recognition decision module;
FIG. 3 is a schematic diagram of a control process of the control module.
Detailed Description
An anti-shoot display, as shown in fig. 1, comprising: built-in collection module of making a video recording, built-in discernment judgement module, built-in control module, alarm module etc. wherein:
(1) the built-in camera shooting acquisition module acquires images by adopting a camera and provides the acquired images for the built-in recognition judgment module.
(2) The built-in recognition judgment module recognizes photographing equipment such as a mobile phone and the like by adopting a deep learning and image recognition method, recognizes photographing actions and records the photographing actions.
(3) The built-in control module is a built-in program control module of the display, and the module realizes the automatic arming and disarming functions by controlling the brightness or the power supply of the display screen according to the result judged by the identification and judgment module. The added anti-photographing circuit and the added module are completely independent from the display screen display information transmission and processing circuit, and only control the display screen power supply circuit.
(4) And an alarm module. The display can be internally provided with an automatic alarm module to carry out stand-alone alarm and can also be sent to a monitoring center to realize the remote alarm function. In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in detail below with reference to the accompanying drawings.
1 shooting collection module
The built-in camera shooting acquisition module acquires images by adopting a camera and provides the acquired images for the built-in recognition judgment module.
2 identification and judgment module
The built-in identification judgment module realizes the intelligent identification function of judging whether the information stealing situation by photographing exists or not by adopting a deep learning and image identification method.
The identification and judgment module mainly comprises two parts: one part is the training process and one part is the recognition process. The training process comprises the steps of inputting training pictures after sample label classification, repeatedly learning, deep network training and forming a classification model; the identification process comprises the steps of inputting test pictures which are shot and captured randomly by a camera, comparing the test pictures with a label sample library, judging whether the information stealing condition is caused by shooting exists or not, and outputting the result.
As shown in fig. 2, the decision process of the recognition decision module includes the following steps:
step one, classifying and preprocessing picture labels under the condition of photographing:
in the invention, the photographing device takes a mobile phone as an example, and the image label classification preprocessing mainly comprises two methods, one is direct classification under the condition of photographing or not, and the other is labeling classification.
The method I includes the steps that photos of mobile phones of different brands and shooting behaviors of the mobile phones from different shooting angles are classified into a 'mobile phone' category, and pictures of non-mobile phones are classified into a 'no mobile phone' category. In order to improve the recognition rate, the non-mobile phone selects a comparison sample with higher similarity to the mobile phone sample, such as sports goods, daily necessities, food, stationery and the like.
And in the second method, the non-mobile phone pictures are not needed, and only the pictures with the mobile phone need to be marked. In the process of marking, three marking modes are provided, namely, only marking a rear camera of the mobile phone, marking the whole mobile phone, combining the camera with the whole mobile phone, and combining the mobile phone with the hand under the condition that a person holds the mobile phone to take a picture.
Step two, establishing a photographing sample library:
the method comprises the steps of storing 'mobile phone' photos and 'no-mobile phone' photos containing mobile phones of different brands and shooting behaviors from different shooting angles by using the mobile phones under different folders respectively, and establishing a 'mobile phone' sample library and a 'no-mobile phone' sample library.
And secondly, after the pictures with the mobile phones are marked according to the four modes in the step one, storing the pictures with the mobile phones in a folder with the mobile phones, and establishing a sample library with the mobile phones.
Step three, training process:
the method I comprises the steps of inputting 'mobile phone' samples and 'no mobile phone' samples after label classification into a training process as training pictures, calling a training program to train the training pictures, and forming accurate 'mobile phone' and 'no mobile phone' template classification result models through repeated learning and deep network training.
And secondly, inputting the 'mobile phone' sample formed after marking as a training picture into a training process, calling a training program to train the training picture, and forming an accurate training result model through repeated learning and deep network training of the picture marking part.
Step four, identification process:
the method comprises the steps of taking a captured picture shot by a camera in real time as input, operating an identification program to identify the picture through a contour, judging by adopting a trained template classification result model, giving similarity for two conditions of 'mobile phone presence' and 'mobile phone absence', and outputting a similarity result. And if the similarity judgment result exceeds the set percentage threshold, recording and storing the called and judged picture.
And secondly, taking a captured picture shot by a camera in real time as input, operating an identification program to quickly identify a target of the picture through color, edge, texture and the like, judging by adopting a trained result model, quickly positioning and framing the identified one or more mobile phones in real time, giving a similarity result, and simultaneously recording and storing the current picture.
The photographing device in the process is only preferably a mobile phone, but is not limited in meaning, and the method is also applicable to other devices with photographing functions.
3 control module
And the control module is used for realizing the automatic arming and disarming functions by controlling the brightness of a display screen or a power supply according to the result judged by the built-in board card identification module, and the specific flow is shown in fig. 3.
If some shooting devices such as mobile phones and the like are close to the display or suspicious behaviors and actions of shooting appear, the display screen becomes dark or is powered off. If the camera does not have the photographing condition, the control module controls the change of the display screen according to whether a person appears in front of the camera or not, the screen is bright when the person is in front of the camera, and the screen is dark or powered off when the person is not in front of the camera. The added anti-photographing circuit and the added module are completely independent from the display screen display information transmission and processing circuit, and only control the display screen power supply circuit.
4 alarm module
When illegal equipment (mobile phone) or photographing behavior in a scene is identified, the alarm module can sound an alarm to play an alarm role. The display can be internally provided with an automatic alarm module for stand-alone alarm and can also be sent to a monitoring center for realizing a remote alarm function, as shown in figure 1.
The above is only one embodiment of the present invention, and it should be noted that the present invention is applicable to different platforms (CPU/GPU) and different operating systems (Windows/Linux/android), and it is obvious for those skilled in the art that several modifications can be made without departing from the principle of the present invention, and these modifications should be regarded as the protection measures of the present invention.
Claims (6)
1. An anti-photographing display, comprising: including built-in collection module of making a video recording, built-in discernment judgement module and built-in control module, wherein: the built-in camera shooting acquisition module adopts a camera to shoot and capture a front image of the display screen in real time and transmits the front image of the display screen to the built-in recognition judgment module; the built-in identification judgment module carries out identification judgment on the photographing equipment and the photographing action, records the photographing action and outputs a judgment result to the built-in control module; the built-in control module controls a power supply circuit of the display screen according to the judgment result, so that the automatic arming and disarming functions are realized; wherein:
the identification judgment process of the built-in identification judgment module comprises the following steps:
step one, establishing a photographing sample library or not:
(1) the method comprises the steps of classifying photos of mobile phones of different brands and shooting behaviors from different shooting angles by using the mobile phones into a 'mobile phone' category, classifying non-mobile phone pictures into a 'no-mobile phone' category, respectively storing the 'mobile phone' category photos and the 'no-mobile phone' category photos under different folders, and establishing a 'mobile phone' sample library and a 'no-mobile phone' sample library;
(2) marking the mobile phone in the picture with the mobile phone, storing the picture in a folder with the mobile phone after marking the picture according to a marking mode, and establishing a sample library with the mobile phone;
step two, inputting the pictures in the sample library as training pictures into a training process, and forming an accurate training result model through repeated learning and deep network training:
(1) taking a 'mobile phone' sample and a 'no mobile phone' sample as training pictures, and forming accurate 'mobile phone' and 'no mobile phone' template classification result models through repeated learning and deep network training;
(2) taking a 'mobile phone' sample formed after labeling as a training picture, and forming an accurate training result model through repeated learning and deep network training of a picture labeling part;
step three, taking the captured front image of the display screen shot in real time by the built-in camera shooting acquisition module as input, and judging by adopting the training result model obtained in the step two:
(1) the method comprises the steps that a built-in camera shooting and collecting module shoots and captures a front image of a display screen in real time to serve as input, an identification program is operated to identify the outline of the image, a trained template classification result model is adopted to judge, the similarity is respectively given for two conditions of 'mobile phone existence' and 'no mobile phone existence', and the similarity result is output; if the similarity judgment result exceeds the set percentage threshold, recording and storing the called and judged picture;
(2) the method comprises the steps of taking a captured image in front of a display screen by a built-in camera shooting and collecting module in real time as input, operating an identification program to quickly identify a target from the image through color, edge and texture, judging by adopting a trained result model, quickly positioning and framing the identified one or more mobile phones in real time, giving a similarity result, and simultaneously recording and storing a current picture.
2. The display of claim 1, wherein: the method for controlling the power supply circuit of the display screen by the built-in control module according to the judgment result comprises the following steps: if the judgment result is that the photographing equipment is close to the display, or suspicious behaviors and actions of photographing appear, the display screen is darkened or powered off; if the judgment result is that no picture is taken, the built-in control module controls the change of the display screen according to whether a person appears in front of the camera: the screen is bright when someone is in front of the camera, and the screen is dark or powered off when nobody is.
3. The display of claim 1, wherein: the pictures classified as 'no mobile phone' adopt a comparison sample with higher similarity to the pictures in the 'mobile phone' sample library.
4. The display of claim 1, wherein: the method for labeling the pictures with the mobile phone comprises the following steps: firstly, only marking a camera of the mobile phone, secondly, marking the whole mobile phone, thirdly, combining the camera with the whole mobile phone for marking, and fourthly, combining the mobile phone with the hand for marking under the condition that a person holds the mobile phone for taking a picture.
5. The display of claim 1, wherein: the display is provided with a built-in automatic alarm module for receiving the signal of the built-in control module to carry out single-machine alarm.
6. The display of claim 1, wherein: and the built-in control module sends the alarm signal to a monitoring center to realize remote alarm.
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| CN110572618B (en) * | 2019-09-24 | 2021-03-16 | 增长引擎（北京）信息技术有限公司 | Illegal photographing behavior monitoring method, device and system |
| CN111225187A (en) * | 2020-01-16 | 2020-06-02 | 厦门博海中天信息科技有限公司 | Intelligent monitoring method and device for recognizing photo taking prevention of mobile phone and readable medium |
| CN111639592A (en) * | 2020-05-28 | 2020-09-08 | 苏州深信达网络科技有限公司 | Electronic display screen anti-photographing system and method |
| CN111985331B (en) * | 2020-07-20 | 2024-05-10 | 中电天奥有限公司 | Detection method and device for preventing trade secret from being stolen |
| CN115529482A (en) * | 2021-06-25 | 2022-12-27 | 海信集团控股股份有限公司 | Screen recording prevention method and related device |
| CN114998086B (en) * | 2022-07-28 | 2022-10-21 | 合肥高维数据技术有限公司 | Method for manufacturing test sample of screen invisible watermark embedding program and test method |
| CN115795543B (en) * | 2022-12-02 | 2024-02-02 | 深圳智信方略工程咨询有限公司 | Computer information security sharing system and method based on big data |
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