CN102663277A - Photos prevention method based on fluctuation refresh rate - Google Patents
Photos prevention method based on fluctuation refresh rate Download PDFInfo
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- CN102663277A CN102663277A CN2012100606084A CN201210060608A CN102663277A CN 102663277 A CN102663277 A CN 102663277A CN 2012100606084 A CN2012100606084 A CN 2012100606084A CN 201210060608 A CN201210060608 A CN 201210060608A CN 102663277 A CN102663277 A CN 102663277A
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Abstract
The invention discloses a photos prevention method based on fluctuation refresh rate which divides a computer screen into a plurality of pieces, and each piece employs random frequency to display images. Different black and white spots appear in the photos, because the frequency of each piece is different from each other when taking photos. As a result, the taken photos can not display the taken contents effectively. The method realizes the protection for the enterprise internal important files which need to be protected from being leaked out, so that effective photos cannot be taken out of the company even by taking pictures. The method guarantees the information safety of enterprise effectively.
Description
Technical field
The invention belongs to the computer information safety technique field, relate in particular to a kind of anti-method of taking pictures based on the fluctuation refresh rate.
Background technology
Along with the development of society, information security is more and more paid attention to by people, no matter be enterprises and institutions or private life, seems particularly important for company and individual privacy protection.With regard to enterprise; Inner classified papers etc. generally all adopt encrypts safeguard procedures to guarantee the information security of enterprise; Prevent that company information from divulging a secret; Therefore, inevitably have and steal taker and through means such as take pictures information is taken out of, make the leakage of a state or party secret take place through the authority of content use instruments such as mobile phone or high definition camera and partly have to(for) enterprise.
Summary of the invention
The present invention provides a kind of anti-method of taking pictures based on the fluctuation refresh rate; Having realized that the enterprises vital document needs protection is not leaked; Even through the form of taking pictures, thereby can not effective picture band be caused divulging a secret from company, effectively guarantee the information security of enterprise.
To achieve these goals, the present invention adopts following technical scheme:
A kind of anti-method of taking pictures based on the fluctuation refresh rate, wherein, said method comprises the steps:
A1: the keeper sets for file type, file, the file of need to be keep secret, and strategy is saved on the server;
A2: user installation also starts client, client download policy from the server;
A3: client carries out encryption for the file of tactful appointment;
A4: when the user opens encrypt file; System will start a video card and drive the seizure engine; Call video card and drive, drive for display memory and viewing area through video card and set a grid, and carry out the field scan and the line scanning of different frequency for each grid;
A5: because visual persistence effect can not found the flicker of display epigraph, still, then can form the spot that black and white differs, thereby cause picture to lose efficacy for the daylighting and the exposure of camera.
A kind of anti-method of taking pictures based on the fluctuation refresh rate provided by the invention is divided into several fritters with computer screen, and each fritter adopts the random frequency display image; When taking pictures; Because the frequency of each fritter is inequality, the different spot of black and white appears in the figure sector-meeting of shooting, and causes picture shot can not effectively demonstrate the content of shooting; Having realized that the enterprises vital document needs protection is not leaked; Even through the form of taking pictures, thereby can not effective picture band be caused divulging a secret from company, effectively guarantee the information security of enterprise.
Description of drawings
Fig. 1 is a method step synoptic diagram provided by the invention.
Embodiment
Specify the present invention below in conjunction with accompanying drawing, it explains principle of the present invention as the part of this instructions through embodiment, other aspects of the present invention, and characteristic and advantage thereof will become very clear through this detailed description.
As shown in Figure 1, a kind of anti-method of taking pictures based on the fluctuation refresh rate, wherein, said method comprises the steps:
A1: the keeper sets for file type, file, the file of need to be keep secret, and strategy is saved on the server;
A2: user installation also starts client, client download policy from the server;
A3: client carries out encryption for the file of tactful appointment;
A4: when the user opens encrypt file; System will start a video card and drive the seizure engine; Call video card and drive, drive for display memory and viewing area through video card and set a grid, and carry out the field scan and the line scanning of different frequency for each grid;
A5: because visual persistence effect can not found the flicker of display epigraph, still, then can form the spot that black and white differs, thereby cause picture to lose efficacy for the daylighting and the exposure of camera.
A kind of anti-method of taking pictures based on the fluctuation refresh rate provided by the invention is divided into several fritters with computer screen, and each fritter adopts the random frequency display image; When taking pictures; Because the frequency of each fritter is inequality, the different spot of black and white appears in the figure sector-meeting of shooting, and causes picture shot can not effectively demonstrate the content of shooting; Having realized that the enterprises vital document needs protection is not leaked; Even through the form of taking pictures, thereby can not effective picture band be caused divulging a secret from company, effectively guarantee the information security of enterprise.
The above disclosed the preferred embodiments of the present invention that are merely can not limit the present invention's interest field certainly with this, so according to the equivalent variations that claim of the present invention is done, still belong to the scope that the present invention is contained.
Claims (1)
1. the anti-method of taking pictures based on the fluctuation refresh rate is characterized in that said method comprises the steps:
A1: the keeper sets for file type, file, the file of need to be keep secret, and strategy is saved on the server;
A2: user installation also starts client, client download policy from the server;
A3: client carries out encryption for the file of tactful appointment;
A4: when the user opens encrypt file; System will start a video card and drive the seizure engine; Call video card and drive, drive for display memory and viewing area through video card and set a grid, and carry out the field scan and the line scanning of different frequency for each grid;
A5: because visual persistence effect can not found the flicker of display epigraph, still, then can form the spot that black and white differs, thereby cause picture to lose efficacy for the daylighting and the exposure of camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100606084A CN102663277A (en) | 2012-03-09 | 2012-03-09 | Photos prevention method based on fluctuation refresh rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100606084A CN102663277A (en) | 2012-03-09 | 2012-03-09 | Photos prevention method based on fluctuation refresh rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102663277A true CN102663277A (en) | 2012-09-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100606084A Pending CN102663277A (en) | 2012-03-09 | 2012-03-09 | Photos prevention method based on fluctuation refresh rate |
Country Status (1)
| Country | Link |
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| CN (1) | CN102663277A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104778417A (en) * | 2015-03-20 | 2015-07-15 | 惠州Tcl移动通信有限公司 | Method and mobile terminal for preventing personal fingerprint information from leaking through photo |
| CN104980617A (en) * | 2014-04-14 | 2015-10-14 | 华为技术有限公司 | Anti-photographing auditing method and device |
| CN106407827A (en) * | 2016-11-24 | 2017-02-15 | 合肥工业大学 | Frequency difference-based screen secret photography prevention device |
| CN111754704A (en) * | 2019-03-26 | 2020-10-09 | 东芝泰格有限公司 | Monitoring system and monitoring method |
-
2012
- 2012-03-09 CN CN2012100606084A patent/CN102663277A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104980617A (en) * | 2014-04-14 | 2015-10-14 | 华为技术有限公司 | Anti-photographing auditing method and device |
| CN104980617B (en) * | 2014-04-14 | 2018-05-04 | 华为技术有限公司 | Anti- take pictures auditing method and device |
| CN104778417A (en) * | 2015-03-20 | 2015-07-15 | 惠州Tcl移动通信有限公司 | Method and mobile terminal for preventing personal fingerprint information from leaking through photo |
| CN106407827A (en) * | 2016-11-24 | 2017-02-15 | 合肥工业大学 | Frequency difference-based screen secret photography prevention device |
| CN111754704A (en) * | 2019-03-26 | 2020-10-09 | 东芝泰格有限公司 | Monitoring system and monitoring method |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120912 |