CN111382468A - Anti-peeping device and method for display screen - Google Patents
Anti-peeping device and method for display screen Download PDFInfo
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- CN111382468A CN111382468A CN201910935259.8A CN201910935259A CN111382468A CN 111382468 A CN111382468 A CN 111382468A CN 201910935259 A CN201910935259 A CN 201910935259A CN 111382468 A CN111382468 A CN 111382468A
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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
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
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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
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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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
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/16—Human faces, e.g. facial parts, sketches or expressions
- G06V40/172—Classification, e.g. identification
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2125—Just-in-time application of countermeasures, e.g., on-the-fly decryption, just-in-time obfuscation or de-obfuscation
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Abstract
The invention discloses a device and a method for preventing peeping of a display screen, wherein the device comprises: the electric control glass is covered on the display screen; the image acquisition module is used for acquiring a video image of a peripheral area of the display screen in real time; the storage module is used for storing face feature samples of authorized personnel; the processing module is respectively connected with the image acquisition module and the storage module and is used for extracting the human face features from the video image, matching the human face features with the human face feature samples and generating a locking signal when the matching fails; and the control module is respectively connected with the processing module and the electric control glass and is used for cutting off the power supply of the electric control glass when receiving the locking signal. According to the invention, through identifying the face image of the personnel in the peripheral area of the display screen, when an unauthorized user exists, the electric control glass is controlled to be switched to the atomization state, so that the display screen is prevented from being peeped.
Description
Technical Field
The application relates to the technical field of information security, in particular to a display screen peep-proof device and method.
Background
At present, a computer is an indispensable tool for daily office work of users. However, when a common computer display screen is used for work, the displayed content is easy to be peeped by others, so that the risk of leakage of private information exists. Therefore, it is necessary to design a display screen for preventing peeping so as to avoid leakage of private information.
In the existing anti-peeping technical scheme, the method for judging whether unauthorized people exist in the people in front of the display screen to watch the content on the display screen through iris information is provided. In other aspects, prevention of peeping by employing a polarized display and polarized lenses is also provided. However, in the anti-peeping scheme through iris information, a high-precision camera is required for acquiring iris information, the cost is increased, and the acquired iris image is small, so that the recognition success rate is low; and the peep-proof system through polarisation display and polarized light lens need the people to wear the rotatory eyes of polaroid for a long time when using, may lead to visual fatigue, produces uncomfortable sense and even causes the damage to eyesight, simultaneously, has the eyesight problem to itself, and the user that needs to wear glasses is not friendly, leads to the user to use inconvenient.
Disclosure of Invention
The application provides a display screen peep-proof device and method, which aim to solve the problems that the existing peep-proof scheme is high in modification cost or inconvenient to use for users.
In order to solve the above technical problem, the present invention provides a display screen peep-proof device, which includes:
the electric control glass is covered on the display screen;
the image acquisition module is used for acquiring a video image of a peripheral area of the display screen in real time;
the storage module is used for storing face feature samples of authorized personnel;
the processing module is respectively connected with the image acquisition module and the storage module and is used for extracting the human face features from the video image, matching the human face features with the human face feature samples and generating a locking signal when the matching fails;
and the control module is respectively connected with the processing module and the electric control glass and is used for cutting off the power supply of the electric control glass when receiving the locking signal.
As a further improvement of the present invention, the processing module is further configured to generate a lock signal when no human face image is detected in the video image.
As a further improvement of the present invention, the processing module is further configured to obtain a size of a face image in the video image, and delete a face feature corresponding to the face image of which the size is smaller than a preset threshold.
As a further improvement of the invention, after the control module cuts off the power supply of the electric control glass, when the face features extracted by the processing module are matched with the face feature samples, an unlocking signal is generated and sent to the control module, and the control module is also used for switching on the power supply of the electric control glass according to the unlocking signal.
As a further improvement of the invention, the image acquisition module comprises a camera.
In order to solve the above problems, the present invention further provides a display screen peep-proof method, which is applied to one of the above display screen peep-proof devices, wherein the display screen peep-proof device comprises an electric control glass, an image acquisition module, a storage module, a processing module and a control module; the method comprises the following steps:
the image acquisition module acquires a video image of a peripheral area of a display screen in real time;
the processing module judges whether a face image exists in the video image or not;
if the human face feature exists, the processing module extracts the human face feature from the video image and matches the human face feature sample stored in the storage module, and if the matching fails, a locking signal is generated and sent to the control module;
and when the control module receives the locking signal, the power supply of the electric control glass is cut off.
As a further improvement of the present invention, after the step of determining whether a face image exists in the video image by the processing module, the method further comprises:
if the locking signal does not exist, the processing module directly generates a locking signal and sends the locking signal to the control module.
As a further improvement of the present invention, before the step of extracting the facial features from the video image, the processing module further comprises:
the processing module acquires the size of the face image;
the processing module judges whether the size is smaller than a preset threshold value or not;
if yes, the processing module deletes the face image;
if not, the processing module extracts the human face features from the video image and carries out the subsequent steps.
As a further improvement of the present invention, after the step of cutting off the power supply of the electric control glass when the control module receives the locking signal, the method further comprises:
when the facial features extracted by the processing module are matched with facial feature samples in a preset database, an unlocking signal is generated and sent to the control module;
the control module is connected with the power supply of the electric control glass.
The beneficial effect of this application is: the method comprises the steps of acquiring a video image of a peripheral area of a display screen, identifying the face image when the face image exists in the video image, determining whether an unauthorized user watches the display screen, if so, controlling the electric control glass to be powered off, and switching the electric control glass to be in an atomization state, so that the content of the display screen is prevented from being peeped.
Drawings
Fig. 1 is a schematic structural diagram of a display screen peep-preventing device according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a display screen peeping prevention method according to a first embodiment of the present invention;
fig. 3 is a schematic flow chart of a display screen peeping prevention method according to a second embodiment of the present invention;
fig. 4 is a schematic flow chart of a display screen peeping prevention method according to a third embodiment of the present invention;
fig. 5 is a schematic flow chart of a display screen peeping prevention according to a fourth embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first", "second" and "third" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. All directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Fig. 1 shows a schematic structural diagram of a display screen peep-preventing device according to an embodiment of the present invention. In the present embodiment, as shown in fig. 1, the display screen peep-proof device includes an electric control glass 1, an image acquisition module 2, a storage module 3, a processing module 4 and a control module 5. The processing module 4 is respectively connected with the image acquisition module 2 and the storage module 3; and the control module 5 is respectively connected with the processing module 4 and the electric control glass 1, and the electric control glass 1 is covered on the display screen.
It should be noted that, the liquid crystal film is compounded into the middle of two-layer glass by the electric control glass 1, and the transparent and opaque states of the glass are controlled by controlling the on-off of the current through the novel special photoelectric glass product of the sandwich structure integrally formed after high-temperature and high-pressure gluing, so that the glass has the characteristics of all safety glass and has the privacy protection function of controlling the transparency of the glass, and the principle is as follows: when the power supply of the electric control glass is switched on, the liquid crystal molecules in the electric control glass are in a transparent and opaque appearance state, and when the power supply of the electric control glass is switched on, the liquid crystal molecules in the electric control glass are arranged in order, light can penetrate freely, and the electric control glass is in a transparent state.
Specifically, the image acquisition module 2 acquires video images of a peripheral area of the display screen in real time, and sends the video images to the processing module 4, in this embodiment, it is preferable to acquire video images of an area in front of the display screen, after the processing module 4 receives the video images, the processing module 4 extracts face features from the video images, and matches the face features with face feature samples of authorized persons stored in the storage module 3, when matching fails, the processing module generates a locking signal, and sends the locking signal to the control module 5, the control module 5 cuts off a power supply of the electric control glass 1 according to the locking signal, so that the electric control glass 1 is switched to an atomization state, and a peeper cannot continue to peep contents displayed on the display screen.
This embodiment is through the video image who acquires the peripheral region of display screen, and when there is the face image in the video image, discern this face image, thereby confirm whether there is unauthorized user watching the display screen, if, then control automatically controlled glass outage, make automatically controlled glass switch to the atomizing state, thereby avoid the content of display screen to be peeped, it is as independent device, do not need to install other software additional in the computer, avoid occupying computer resources, and, compare in the mode of iris information identification user identity, its discernment rate of accuracy is higher, and need not use polarized light display screen and polarized light lens, the injury to user's eyes has been avoided.
In order to enhance the protection of the content displayed on the display screen, in other embodiments based on the above embodiment, the processing module 4 is further configured to generate a locking signal when detecting that no human face image exists in the video image, and send the locking signal to the control module 5, and the control module 5 cuts off the power supply of the electric control glass 1 according to the locking signal.
Whether the face image exists in the video image is detected through the processing module 4, if the face image does not exist, it is indicated that no person uses the display screen at present, and therefore a locking signal is generated and sent to the control module 5, and the power supply of the electric control glass 1 is cut off through the control module 5, so that peeping by other people is prevented.
In order to avoid the interference of people who are far away and cannot observe the display screen, on the basis of the above embodiment, in other embodiments, the processing module 4 obtains the size of each face image in the video image after receiving the video image, and deletes the face feature corresponding to the face image whose size is smaller than the preset threshold.
Specifically, the size of the video image is a fixed size, the preset threshold is set according to the size of the video image, when the size of the face image in the video image is smaller than the preset threshold, it is indicated that a person corresponding to the face image is farther from the display screen, content displayed on the display screen cannot be peeped, and the peep-proof processing is not required to be executed, and when the size of the face image in the video image is larger than or equal to the preset threshold, it is indicated that the person corresponding to the face image is closer to the display screen, and the peep-proof processing is required to be executed, so that leakage of private information is prevented.
Further, after the control module 5 cuts off the power supply of the electric control glass 1, if the face features extracted from the video image by the processing module 4 are matched with the face feature samples, it indicates that the current person is an authorized person, an unlocking signal is generated and sent to the control module 5, the control module 5 switches on the power supply of the electric control glass 1 according to the unlocking signal, and the electric control glass 1 is switched to a transparent state for the authorized person to use.
Further, the image acquisition module 2 includes a camera, preferably a wide-angle camera, so as to facilitate the acquisition of video images in a wide range.
Fig. 2 shows a schematic flow chart of a display screen peeping prevention method according to a first embodiment of the present invention. In this embodiment, the display screen peeping method is applied to the display screen peeping prevention device described in the above embodiment, and the display screen peeping prevention device includes an electronic control glass, an image acquisition module, a storage module, a processing module, and a control module.
As shown in fig. 1, the display screen peeping prevention method includes:
in step S1, the image obtaining module obtains a video image of the peripheral area of the display screen in real time.
In step S2, the processing module determines whether a face image exists in the video image. If so, go to step S3.
And step S3, the processing module extracts the face features from the video image, matches the face features with the face feature samples stored in the storage module, and if the matching fails, generates a locking signal and sends the locking signal to the control module.
And step S4, cutting off the power supply of the electric control glass when the control module receives the locking signal.
This embodiment is through the video image who acquires the peripheral region of display screen, and when there is the face image in the video image, discern this face image, thereby confirm whether there is unauthorized user watching the display screen, if, then control automatically controlled glass outage, make automatically controlled glass switch to the atomizing state, thereby avoid the content of display screen to be peeped, it is as independent device, do not need to install other software additional in the computer, avoid occupying computer resources, and, compare in the mode of iris information identification user identity, its discernment rate of accuracy is higher, and need not use polarized light display screen and polarized light lens, the injury to user's eyes has been avoided.
Further, in order to enhance the protection of the content displayed on the display screen, in another embodiment, as shown in fig. 3, if there is no human face image in the video image, after step S2, the method further includes:
in step S10, the processing module directly generates a lock signal and sends it to the control module.
When the processing module detects that no face image exists in the video image, the locking signal is generated and sent to the control module, and the power supply of the electric control glass is cut off through the control module, so that peeping by other people is prevented.
Further, in order to avoid the interference of the person who is far away and cannot observe the display screen, in another embodiment based on the above embodiment, as shown in fig. 4, step S3 further includes:
in step S20, the processing module obtains the size of the face image.
In step S21, the processing module determines whether the size is smaller than a preset threshold. If yes, go to step S22; if not, step S3 is executed.
In step S22, the processing module deletes the face image.
Whether the distance between the person corresponding to the face image and the display screen is short is determined according to the size of the face image in the video image, and the subsequent peeping-preventing processing operation is executed when the distance is short, so that the influence of distant irrelevant persons on the display screen is avoided.
Further, after the electric control glass is switched to the atomizing state, if an authorized person needs to use the electric control glass, the electric control glass needs to be switched to the transparent state, so that, on the basis of the foregoing embodiment, as shown in fig. 5, in another embodiment, after step S4, the method further includes:
and step S30, when the facial features extracted by the processing module are matched with the facial feature samples in the preset database, an unlocking signal is generated and sent to the control module.
And step S31, the control module is connected with the power supply of the electric control glass.
In the embodiment, after the power supply of the electric control glass is switched on, whether the face image of the authorized person exists in the video image is detected, and when the face image of the authorized person is detected, the transparent state is switched to be used by the authorized person.
The embodiments of the present invention have been described in detail, but the present invention is only exemplary and is not limited to the embodiments described above. It will be apparent to those skilled in the art that any equivalent modifications or substitutions can be made within the scope of the present invention, and thus, equivalent changes and modifications, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the scope of the present invention.
Claims (9)
1. A display screen peep-proof device, which is characterized by comprising:
the electric control glass is arranged on the display screen in a covering manner;
the image acquisition module is used for acquiring a video image of a peripheral area of the display screen in real time;
the storage module is used for storing face feature samples of authorized personnel;
the processing module is respectively connected with the image acquisition module and the storage module and is used for extracting the human face features from the video image, matching the human face features with the human face feature samples, and generating a locking signal when the matching fails;
and the control module is respectively connected with the processing module and the electric control glass and is used for cutting off the power supply of the electric control glass when receiving the locking signal.
2. The display screen peep-proof device according to claim 1, wherein the processing module is further configured to generate the lock signal when no face image is detected in the video image.
3. The display screen peep-proof device according to claim 1, wherein the processing module is further configured to obtain a size of a face image in the video image, and delete a face feature corresponding to the face image of which the size is smaller than a preset threshold.
4. The display screen peep-proof device according to claim 1, wherein after the control module cuts off the power supply of the electric control glass, when the face features extracted by the processing module are matched with the face feature samples, an unlocking signal is generated and sent to the control module, and the control module is further configured to switch on the power supply of the electric control glass according to the unlocking signal.
5. The display screen privacy device of claim 1, wherein the image acquisition module comprises a camera.
6. A display screen peep-proof method, which is applied to the display screen peep-proof device according to any one of claims 1 to 5, wherein the display screen peep-proof device comprises an electric control glass, an image acquisition module, a storage module, a processing module and a control module; the method comprises the following steps:
the image acquisition module acquires a video image of a peripheral area of the display screen in real time;
the processing module judges whether a human face image exists in the video image;
if the human face feature exists, the processing module extracts the human face feature from the video image and matches the human face feature sample stored in the storage module, and if the matching fails, a locking signal is generated and sent to the control module;
and when the control module receives the locking signal, the power supply of the electric control glass is cut off.
7. The method for preventing peeping on a display screen according to claim 6, wherein after the step of determining whether the face image exists in the video image by the processing module, the method further comprises:
and if the locking signal does not exist, the processing module directly generates the locking signal and sends the locking signal to the control module.
8. The method for preventing peeping on a display screen according to claim 6, wherein before the step of extracting human face features from the video image, the processing module further comprises:
the processing module acquires the size of the face image;
the processing module judges whether the size is smaller than a preset threshold value;
if yes, deleting the face image by the processing module;
if not, the processing module extracts the human face features from the video image and carries out the subsequent steps.
9. The display screen peeping prevention method according to claim 6, wherein after the step of cutting off the power supply of the electrically controlled glass when the control module receives the locking signal, the method further comprises the following steps:
when the facial features extracted by the processing module are matched with the facial feature samples in the preset database, an unlocking signal is generated and sent to the control module;
and the control module is connected with the power supply of the electric control glass.
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| CN201910935259.8A CN111382468A (en) | 2019-09-29 | 2019-09-29 | Anti-peeping device and method for display screen |
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| CN201910935259.8A CN111382468A (en) | 2019-09-29 | 2019-09-29 | Anti-peeping device and method for display screen |
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| CN116523241A (en) * | 2023-05-05 | 2023-08-01 | 江苏鑫翊翔智能化工程有限公司 | Digital service management system and method based on artificial intelligence |
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Inventor after: Lou Hongwei Inventor after: Li Zirui Inventor before: Li Zirui |
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Application publication date: 20200707 |