CN102523460A - Method and system for displaying confidential content through encryption - Google Patents
Method and system for displaying confidential content through encryption Download PDFInfo
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- CN102523460A CN102523460A CN2011103710189A CN201110371018A CN102523460A CN 102523460 A CN102523460 A CN 102523460A CN 2011103710189 A CN2011103710189 A CN 2011103710189A CN 201110371018 A CN201110371018 A CN 201110371018A CN 102523460 A CN102523460 A CN 102523460A
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Abstract
The invention discloses a method and a system for displaying confidential content through encryption. The method comprises the followings steps of: receiving a command displayed through encryption; generating an interferential frame image aiming at a needed confidential frame image displayed through encryption; carrying out frame interpolation on the confidential frame image and the interferential frame image to generate a final display output image; recording a time of displaying the confidential frame image and sending the time to a pair of time-division eyeglasses; and enabling the time-division eyeglasses to be only opened when the confidential frame image is displayed but closed at other times. Through the cooperation of a specific display manner, the effect that: a user can normally browse the confidential image while other people around the user cannot see the confidential image or even see a disguised image, can be achieved, so that the problem that: the safety of access to a computer or other display equipment in public places by safety personnel and other personnel who hopes to keep secrets, is solved.
Description
Technical field
The present invention relates to a kind of method and system that show secure content of encrypting, relate in particular to and utilize time division type or polarising glass to realize the method and system that the secure content encryption shows.
Background technology
Along with popularizing of computer and other mobile display devices, use a computer or other display equipment in each occasion, carry out secret thing and handle, become the Security Officer or other hope one of problem that secret personnel are worried.They need to handle as early as possible affairs at hand on the one hand; The environment of public place can't provide the secret guarantee of display frame in real time to them on the other hand.The secret display message processing of public place has become the Security Officer or other hope that secret personnel hope one of safety problem that solves most.
One Chinese patent application CN 102200644A discloses a kind of 3 D image display device, comprising: liquid crystal panel, this liquid crystal panel are used for showing left-eye image frame data and eye image frame data with the mode of time-division; Back light unit, this back light unit are divided into a plurality of and carried out sequential scanning for each piece, to provide light to liquid crystal panel; And shutter glasses; This shutter glasses comprises left eye filter and right eye filter; The left eye filter only transmits the light of left-eye image, and the right eye filter only transmits the light of eye image, wherein; Order makes the luminous time cycle of first piece to last piece of back light unit, is smaller than the cycle of walking to last column addressing left-eye image frame data or eye image frame data from first of liquid crystal panel.
One Chinese patent application CN 102063880A discloses a kind of 3 D image display device and driving method thereof.This 3 D image display device comprises: the liquid crystal board of Alternation Display first image and second image, and said first image and the every frame of said second image changed in first transition period; Be arranged in the Polarization Control plate that changes polarization state on the said liquid crystal board and in second transition period; Make it possible to watch first image that shown and the polarising glass of second image through said Polarization Control plate; And light is provided and has the back light unit that be not provided to said liquid crystal board the black period of light to said liquid crystal board.
One Chinese patent application CN 102053406A discloses a kind of three-dimensional display; Wherein three-dimensional display comprises LCD liquid crystal display screen, polarizer backlight, LED-backlit source A, LED-backlit source B, control unit; Display control method be with stereo camera clap picture through the LCD liquid crystal display screen with the alternate mode Alternation Display of images of left and right eyes picture; It is luminous at left eye picture and right eye picture respectively to control LED-backlit source A, LED-backlit source B simultaneously; The light that LED-backlit source A, LED-backlit source B send is respectively through the orthogonal linear polarization piece element in polarization direction in the polarizer backlight; The polarised light that forms sees through the LCD liquid crystal display screen; The observer is through wearing the orthogonal linear polarizer glasses in images of left and right eyes polarization direction, and images of left and right eyes is alternately seen the images of left and right eyes picture that stereo camera is taken respectively, after human brain is handled, sees stereo-picture.
One Chinese patent application CN 101900889A discloses a kind of stereoscopic display device.In this image display device, display unit shows first view data and second view data with time division way.Switchable retarder panel is configured to control from the light of display unit emission and by electrically conerolled birefringence ECB liquid crystal to be processed.Polarising glass makes from the light polarization of said switchable retarder panel emission.Polarising glass comprises left eyeglass lens and right eye eyeglass, and left eyeglass lens comprises the polarizer that becomes 45 degree inclinations angle about the light absorption axle, and the right eye eyeglass comprises the polarizer that becomes 135 degree inclinations angle about the light absorption axle.
Above-mentioned prior art all relates to time-division or the application of polarization technology in stereo display, but the equal normal display program content of all these prior art display devices, has no one can realize content maintained secrecy and show.
Summary of the invention
Target of the present invention is to provide a kind of Security Officer or other of can letting hope that secret personnel utilize time division type or polarising glass to realize the method and system that the content of computer or other display equipment is maintained secrecy and shown in each occasion.Cooperation through specific display mode; Reaching oneself can the secret picture of normal browsing; And people on every side can't see secret picture; Even see the effect of camouflage picture, hope the secret personnel problem of secure access computer or other display equipment in public thereby solved the Security Officer with other.
On the one hand, the present invention utilizes the time division type glasses to realize the method that the secure content encryption shows, comprises step: receive and encrypt the instruction that shows; Encrypt the secret frame picture that shows to needs, generate and disturb the frame picture; Secret frame picture is carried out interleave with interference frame picture handle, generate final demonstration output picture; The moment that record security frame picture shows also sends it to the time division type glasses; The time division type glasses are only opened in the moment that secret frame picture shows, and closed constantly at other.
On the other hand, the present invention utilizes the time division type glasses to realize the system that the secure content encryption shows, this system comprises display, and this system also comprises: receiver module is used to receive the instruction of encrypting demonstration; Disturb the picture generation module, be used for encrypting the secret frame picture generation that shows and disturb the frame picture to needs; Encrypt driver module, be used for that secret frame picture is carried out interleave with interference frame picture and handle, generate final demonstration output picture and export to display; Fast gate control and transport module are used for the moment of record security frame picture demonstration and send it to the time division type glasses; Time division type glasses, these time division type glasses are only opened in the moment that secret frame picture shows, and close constantly at other.
On the other hand, the present invention utilizes polarising glass to realize the method that the secure content encryption shows, comprises step: receive and encrypt the instruction that shows; Encrypt the secret frame picture that shows to needs, generate and disturb the frame picture; Make secret frame picture and disturb the frame picture to be projected to mutually perpendicular complete polarised light; Make the polarization direction of polarized lenses of polarising glass identical with the polarization direction of secret frame picture, polarising glass only sees through the light of secret frame picture.
On the other hand, the present invention utilizes polarising glass to realize the system that the secure content encryption shows, this system comprises display, and this system also comprises: receiver module is used to receive the instruction of encrypting demonstration; Disturb the picture generation module, be used for encrypting the secret frame picture generation that shows and disturb the frame picture to needs; Encrypt driver module, be used to make secret frame picture and disturb the frame picture to be projected to mutually perpendicular complete polarised light and to export to display; Polarising glass, wherein the polarization direction of the polarized lenses of polarising glass is identical with the polarization direction of secret frame picture, and polarising glass only sees through the light of secret frame picture.
Only if spell out, the step of any method disclosed herein must accurately not carried out by disclosed order.
Description of drawings
The present invention will illustrate in greater detail with reference to accompanying drawing, combination preferred implementation below.
Fig. 1 is the sketch map that utilizes the time division type glasses to realize the method that the secure content encryption shows according to the present invention.
Fig. 2 generates sketch map for disturbing picture.
Fig. 3 is the block diagram that utilizes the time division type glasses to realize the system that the secure content encryption shows according to the present invention.
Fig. 4 is the sketch map that utilizes polarising glass to realize the method that the secure content encryption shows according to the present invention.
Fig. 5 is the block diagram that utilizes polarising glass to realize the system that the secure content encryption shows according to the present invention.
For the purpose of clear, the figure that these accompanying drawings are schematically and simplify, they have only provided for understanding the necessary details of the present invention, and omit other details.In institute's drawings attached, identical Reference numeral and title are used in reference to same or corresponding part.
Through detailed description given below, the further scope of application of the present invention will be obvious.Yet; Be to be understood that; When describing in detail and object lesson shows the preferred embodiment of the present invention, they are merely illustration purpose and provide, because; For a person skilled in the art, be described in detail in through these that to make variations and modifications in spirit and scope of the invention be conspicuous.
Embodiment
Fig. 1 shows the sketch map that utilizes the time division type glasses to realize the method that the secure content encryption shows according to of the present invention.When the user had secure content to show, the user can open the encryption Presentation Function of computer.Computer shows that output after receiving unlatching information, switches to the encryption display mode.The secret frame picture that need show to the user; Interference picture like Fig. 2 generates shown in the sketch map; Disturb picture generation module real-time working; Multiframe picture (being generally 30 frames) to being shown in 1 second at first obtains each secret frame picture, then it is carried out algorithm process and generates multiframe and disturb picture (having generated 30 frames in the preferred embodiment).The inverse or the interference picture that wherein disturb the frame picture to generate through an algorithm for the secret frame picture of pure color picture, noise picture, dynamic video picture or encryption demonstration at random.In a preferred embodiment, the noise algorithm generates to disturb picture to use the inverse algorithm to add at random.
Then the secret picture of 30 frames and the interference picture of 30 frames are carried out the interleave processing, the interleave processing can be the interspersed processing of frame at interval of simple equal portions, also can be uncertain or interspersed processing of the moment of variation.And the going out now of record security picture.As shown in fig. 1, encrypt the interspersed mode of equal portions at interval that adopted that shows, the picture of the secret picture heel 1 frame interference of 1 frame just, the per second symbiosis becomes 60 frame display frames.Video card outputs to display to mixed 60 frame picture unifications, reaches secret picture and mixes with the confusion of disturbing picture, makes it under common display mode, presents pseudo-picture chaotic or that change, can't see the display picture content clearly, as shown in Figure 2.
The existing ripe wired or wireless mode that goes out to utilize now of secret frame picture is sent to the time division type glasses.The time division type glasses are after receiving the synchronization point signal, and the frame that only occurs at secret picture is opened the glasses shutter constantly, all close the glasses shutter constantly at other.Like this, the user is after wearing these time division type glasses, and the display picture content of watching from glasses is the content of secret picture.Do not wear other masses of these glasses, the display picture of seeing then is a picture chaotic or camouflage, and the Security Officer who has worn these time division type glasses but can see real secure content.Make under the environment that The more people, the more eyes, also can the relieved safely secure content of checking.
Fig. 3 shows the block diagram that utilizes the time division type glasses to realize the system that the secure content encryption shows according to of the present invention.Shown in figure, after the receiver module of computer receives the request of need to be keep secret demonstration, to secret picture; Transfer to and disturb the picture generation module; Disturb the picture generation module to be responsible for selecting specific algorithm for use, generate and disturb image frame according to current secret frame picture; Make it under common display mode, present pseudo-picture chaotic or that change.Disturb picture and secret picture itself to be sent to the encryption driver module then, it is responsible for through interting, generating final display frame to current secret frame picture and interference frame picture, is sent to display output.Write down synchronization point simultaneously and be sent to shutter control and transport module.Fast gate control and transport module are responsible for sending through wired or wireless mode encrypting the corresponding synchronization point of driver module.Time division type glasses synchronization control module receives the signal of above-mentioned fast gate control and transport module transmission, according to synchronization point, only opens glasses in the moment that secret picture shows, and closes glasses constantly at other.Thereby reach the effect of only seeing secret picture.
Fig. 4 is the sketch map that utilizes polarising glass to realize the method that the secure content encryption shows according to the present invention.When the user had secure content to show, the user can open the encryption Presentation Function of computer.Computer shows that output after receiving unlatching information, switches to the encryption display mode.Need picture displayed to the user; As shown in Figure 2; Disturb picture generation module real-time working; Multiframe picture (being generally 30 frames) to being shown in 1 second at first obtains each secret frame picture, then it is carried out algorithm process and generates multiframe and disturb picture (having generated 30 frames in the preferred embodiment).Computer monitor makes secret frame picture and disturbs the frame picture to be projected to mutually perpendicular complete polarised light.Make the polarization direction of polarized lenses of polarising glass identical with the polarization direction of secret frame picture, polarising glass only sees through the light of secret frame picture.When the user wore this polarising glass, the display picture content of watching from glasses was the content of secret frame picture; And other masses that do not wear this polarising glass, what see but is the chaotic picture that vertical two-way polarization direction blends; Thereby make under the environment that The more people, the more eyes, also can the relieved safely secure content of checking.In the above-described embodiments, make secret frame picture and disturb the frame picture to be projected to mutually perpendicular complete polarised light to comprise and be projected to approximately perpendicular complete polarised light.
Fig. 5 is the block diagram that utilizes polarising glass to realize the system that the secure content encryption shows according to the present invention.Shown in figure; After the receiver module of computer receives the request of need to be keep secret demonstration, secret picture is transferred to interference picture generation module, disturb the picture generation module to be responsible for according to current secret frame picture; Select specific algorithm for use; Generate and disturb image frame, make it under common display mode, present pseudo-picture chaotic or that change.To disturb picture and secret picture itself to be sent to the encryption driver module then, this module is responsible for dividing two-way output current secret frame picture and interference frame picture, based on the path of display, is projected to mutually perpendicular complete polarised light respectively and gets final product.And corresponding polarising glass eyeglass optical filtering angle keeps disturbing picture light with consistent can the filtering out of angle of secret picture polarization output, thereby reaches the effect of only seeing secret picture.
Preferred embodiments more of the present invention have been described above, but what should stress is that the present invention does not receive the restriction of these embodiment, but the alternate manner in the theme that can the present invention limits is realized.
Claims (10)
1. one kind is utilized the time division type glasses to realize the method that the secure content encryption shows, comprises step:
Receive and encrypt the instruction that shows;
Encrypt the secret frame picture that shows to needs, generate and disturb the frame picture;
Secret frame picture is carried out interleave with interference frame picture handle, generate final demonstration output picture;
The moment that record security frame picture shows also sends it to the time division type glasses;
The time division type glasses are only opened in the moment that secret frame picture shows, and closed constantly at other.
2. according to the process of claim 1 wherein that said interference frame picture is inverse or the interference picture of the secret frame picture of pure color picture, noise picture, dynamic video picture or encryption demonstration at random through algorithm generation.
3. based on the process of claim 1 wherein that said interleave is treated to equal portions interspersed processing of frame or interspersed constantly processing the at interval.
4. one kind is utilized the time division type glasses to realize the system that the secure content encryption shows, said system comprises display, it is characterized in that said system also comprises:
Receiver module is used to receive the instruction of encrypting demonstration;
Disturb the picture generation module, be used for encrypting the secret frame picture generation that shows and disturb the frame picture to needs;
Encrypt driver module, be used for that secret frame picture is carried out interleave with interference frame picture and handle, generate final demonstration output picture and export to display;
Fast gate control and transport module are used for the moment of record security frame picture demonstration and send it to the time division type glasses;
Time division type glasses, these time division type glasses are only opened in the moment that secret frame picture shows, and close constantly at other.
5. according to the system of claim 4, wherein said interference frame picture is inverse or the interference picture that the secret frame picture of pure color picture, noise picture, dynamic video picture or encryption demonstration at random generates through an algorithm.
6. based on the system of claim 4, wherein said interleave is treated to equal portions interspersed processing of frame or interspersed constantly processing the at interval.
7. one kind is utilized polarising glass to realize the method that the secure content encryption shows, comprises step:
Receive and encrypt the instruction that shows;
Encrypt the secret frame picture that shows to needs, generate and disturb the frame picture;
Make secret frame picture and disturb the frame picture to be projected to mutually perpendicular complete polarised light;
Make the polarization direction of polarized lenses of polarising glass identical with the polarization direction of secret frame picture, polarising glass only sees through the light of secret frame picture.
8. according to the method for claim 7, wherein said interference frame picture is inverse or the interference picture that the secret frame picture of pure color picture, noise picture, dynamic video picture or encryption demonstration at random generates through an algorithm.
9. one kind is utilized polarising glass to realize the system that the secure content encryption shows, said system comprises display, it is characterized in that said system also comprises:
Receiver module is used to receive the instruction of encrypting demonstration;
Disturb the picture generation module, be used for encrypting the secret frame picture generation that shows and disturb the frame picture to needs;
Encrypt driver module, be used to make secret frame picture and disturb the frame picture to be projected to mutually perpendicular complete polarised light and to export to display;
Polarising glass, wherein the polarization direction of the polarized lenses of polarising glass is identical with the polarization direction of secret frame picture, and polarising glass only sees through the light of secret frame picture.
10. according to the system of claim 9, wherein said interference frame picture is inverse or the interference picture that the secret frame picture of pure color picture, noise picture, dynamic video picture or encryption demonstration at random generates through an algorithm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103710189A CN102523460A (en) | 2011-11-21 | 2011-11-21 | Method and system for displaying confidential content through encryption |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103710189A CN102523460A (en) | 2011-11-21 | 2011-11-21 | Method and system for displaying confidential content through encryption |
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| CN102523460A true CN102523460A (en) | 2012-06-27 |
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| CN2011103710189A Pending CN102523460A (en) | 2011-11-21 | 2011-11-21 | Method and system for displaying confidential content through encryption |
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| CN103841262A (en) * | 2014-02-17 | 2014-06-04 | 宇龙计算机通信科技(深圳)有限公司 | Method and device for displaying privacy information |
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| CN107039005A (en) * | 2015-07-23 | 2017-08-11 | 达意科技股份有限公司 | Display device of electronic paper, the information transfer system and its method |
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| CN107786861A (en) * | 2017-09-22 | 2018-03-09 | 广州骏霖文化科技有限公司 | A kind of stealthy developing method, equipment and its system |
| CN107767828A (en) * | 2017-09-22 | 2018-03-06 | 广州骏霖文化科技有限公司 | A kind of stealthy display methods based on light field compensation |
| CN108563029A (en) * | 2018-01-19 | 2018-09-21 | 北京航星机器制造有限公司 | A kind of anti-shooting system of screen peep-proof |
| CN112150940A (en) * | 2020-09-22 | 2020-12-29 | 郑州胜龙信息技术股份有限公司 | Grating type screen display system for information safety protection |
| CN112150940B (en) * | 2020-09-22 | 2024-05-14 | 郑州胜龙信息技术股份有限公司 | Grating type screen display system for information safety protection |
| CN114615490A (en) * | 2020-12-08 | 2022-06-10 | 军事科学院系统工程研究院网络信息研究所 | Hidden peep-proof safety display method based on polarization synchronous modulation |
| CN114615490B (en) * | 2020-12-08 | 2023-07-14 | 军事科学院系统工程研究院网络信息研究所 | Concealed peep-proof safety display method with polarization synchronous modulation |
| CN113267910A (en) * | 2021-07-19 | 2021-08-17 | 军事科学院系统工程研究院网络信息研究所 | Peep-proof display method based on picture covering polarization filtering |
| CN113267910B (en) * | 2021-07-19 | 2022-03-04 | 军事科学院系统工程研究院网络信息研究所 | Peep-proof display method based on picture covering polarization filtering |
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Application publication date: 20120627 |