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CN-121980629-A - Screen privacy control method and system, readable storage medium and electronic equipment

CN121980629ACN 121980629 ACN121980629 ACN 121980629ACN-121980629-A

Abstract

The invention discloses a screen privacy control method, a system, a readable storage medium and electronic equipment, wherein the method comprises the steps of obtaining video streams through a camera, detecting and screening a close-range user set; the method comprises the steps of carrying out identity verification and grading on a user, judging whether an automatic clear permission signal is output or not based on a verification result, providing a manual cooperation option and generating a manual coverage instruction with high priority when a master authorized person is continuously present if the automatic signal is negative, and finally controlling screen state switching by combining an anti-shake delay mechanism according to a rule of the priority of the manual instruction. The invention realizes the dynamic balance of single-user privacy protection and multi-user security collaboration, only needs general hardware, and improves the intelligence and user experience of privacy protection.

Inventors

  • OUYANG XIAOHUI

Assignees

  • 冠捷显示科技（中国）有限公司

Dates

Publication Date
20260505
Application Date
20260120

Claims (10)

  1. 1. A screen privacy control method is characterized by comprising the following steps: acquiring a video stream in real time through a camera; detecting and tracking human faces of all users in a video stream, and screening a close-range user set U positioned in a preset collaboration distance; the method comprises the steps that identity verification is conducted on users in a close-range user set U, and the users are divided into main authorized personnel, common authorized personnel and unauthorized personnel; Judging whether the automatic clear display condition is met according to the result of the identity verification, and outputting an automatic clear permission signal; When the automatic clear permission signal is no and the duration of the presence time of the master authority is detected to be not less than a first preset time threshold, providing a manual cooperation confirmation option, outputting a manual coverage instruction after receiving the confirmation of the master authority, and forcing the screen to be clearly displayed; And controlling the screen display state according to the automatic clear permission signal and the manual override instruction according to the priority logic, wherein the manual override instruction has the highest priority.
  2. 2. The method for controlling screen privacy according to claim 1, wherein the automatically clear display condition comprises that no unauthorized person exists in the close-range user set U, and the number of users in the close-range user set U is within a preset range.
  3. 3. The method for screen privacy control of claim 1, wherein the T_manual timer is started after the manual override instruction is output, and the manual override instruction is immediately turned off when any of the following occurs: The timing time exceeds a second preset time threshold; the master authorized personnel disappear from the close-range user set U; the master authorized personnel actively triggers the exiting of the collaborative operation.
  4. 4. The method of claim 1, wherein the authentication method comprises at least one of face recognition, iris recognition, voiceprint recognition, or fingerprint recognition.
  5. 5. The screen privacy control method of claim 1, wherein: the specific steps for controlling the screen display state according to the priority logic comprise: When the manual coverage instruction is on, the screen is controlled to enter and keep a clear state; When the manual coverage instruction is closed, the control is performed according to the automatic clear permission signal, wherein if the automatic clear permission signal is yes, the control screen is switched from the fuzzy state to the clear state, and if the automatic clear permission signal is no, the control screen is switched from the clear state to the fuzzy state.
  6. 6. The method for screen privacy control as defined in claim 5, further comprising an anti-shake delay step when the manual override command is off and controlled according to the auto-clear enable signal: And if the automatic clear permission signal is negative, the screen is controlled to be switched from the clear state to the fuzzy state after the second anti-shake delay.
  7. 7. A screen privacy control method as defined in claim 1, wherein the manual collaboration confirmation is triggered by a graphical interface button, gesture, voice, or physical key.
  8. 8. The screen privacy control system is used for realizing the control method of any one of claims 1 to 7 and is characterized by comprising a video acquisition module, a user detection and tracking module, a user selection module and a user selection module, wherein the video acquisition module is used for acquiring video streams in real time through a camera; The identity and authority verification module is used for carrying out identity verification on the users in the close-range user set U and is divided into a main authorized person, a common authorized person and an unauthorized person; the collaboration judging module is used for judging whether the automatic clear display condition is met or not according to the authentication result and outputting an automatic clear permission signal; The manual cooperation control module is used for providing a manual cooperation confirmation option when the automatic clear permission signal is no and the duration of the presence time of the master authorized person is not less than a first preset time threshold value, outputting a manual coverage instruction after receiving the confirmation of the master authorized person, and forcing the screen to be clearly displayed; The display control module is used for controlling the display state of the screen according to the automatic clear permission signal and the manual coverage instruction, and controlling the display state of the screen according to the preset priority logic, wherein the manual coverage instruction has the highest priority.
  9. 9. A readable storage medium, on which a computer program is stored, characterized in that the computer program, when executed by a processor, implements the control method according to any one of claims 1 to 7.
  10. 10. An electronic device characterized by comprising a camera, a processor and a memory, wherein the memory stores a computer program, and the processor implements the control method according to any one of claims 1 to 7 when executing the computer program.

Description

Screen privacy control method and system, readable storage medium and electronic equipment Technical Field The present invention relates to the field of information privacy security technologies, and in particular, to a screen privacy control method and system, a readable storage medium, and an electronic device. Background Currently, screen privacy protection techniques prevent sensitive information from being peeked by unauthorized persons, mainly by detecting the presence or identity of a user. The mainstream scheme includes automatically blurring, masking or switching display modes of screen content when an unauthorized user or a primary user is detected to leave based on a face recognition, eye tracking or device binding manner. However, these schemes generally assume a single user usage scenario, equating "multi-person presence" directly to "privacy disclosure risk", and lack support for a legitimate collaboration scenario. Such as the following prior patents: CN113791708a (viwa mobile communication limited, 2021) proposes a screen privacy protection method based on face recognition, in which the system automatically blurs the display content when it is detected that a non-registered user is present in front of the screen. The scheme only supports single person authorization verification, once a second person (whether authorized or not) is detected, the second person is triggered to be fuzzy, illegal peeping and legal cooperation cannot be distinguished, and experience is interrupted in multi-user scenes such as conferences, joint offices and the like. US20210096725A1 (Microsoft, 2021) describes a "bystander detection" system that recognizes by means of a front-facing camera whether there is a face other than the main user, and if so activates the privacy mode. The scheme does not verify the identity of bystanders, does not define the cooperation distance or the limit of the number of people, and is not suitable for a team cooperation working environment because any multi-person co-located scene is regarded as a threat. US20200073421A1 (Microsoft, 2020) uses special eye tracking hardware to determine whether a user looks at a sensitive area, and local blur content is not watched, and can trigger full screen protection in combination with face detection. However, the scheme relies on a high-cost eye tracker, is not suitable for a built-in camera of a common office computer, and also does not support a collaboration mode that a plurality of authorized users view clearly at the same time. The prior art mainly has the following technical defects: only a single user model is supported, and legal cooperation requirements that a plurality of authorized users are simultaneously present cannot be processed; Lack of identity admission mechanism-most schemes only detect "whether there is a person" rather than "whether it is an authorized user"; no viewing distance and people number constraint, namely, the effective space range of cooperation is not considered (such as that only close-range users need to be verified); the state switching is frequent, namely, the screen flicker is caused by the influence of detection jitter due to lack of a delay anti-shake mechanism; The lack of a security bypass mechanism based on the continued presence of master authorities, existing schemes cannot safely temporarily open collaboration in a multi-person scenario, either completely prohibited or unconditionally allowed, with the dilemma of security and experience. The hardware dependence is strong, and part of the schemes need special sensors (such as an eye tracker) and are difficult to deploy on general equipment. Disclosure of Invention The invention aims to provide a screen privacy control method, a system, a readable storage medium and electronic equipment, which can seamlessly support multi-person collaborative viewing of authorized users within a limited distance while guaranteeing that sensitive information is not peeped by unauthorized persons, and avoid frequent switching of display states through a configurable delay mechanism. The technical scheme adopted by the invention is as follows: a screen privacy control method, comprising the steps of: acquiring a video stream in real time through a camera; detecting and tracking human faces of all users in a video stream, and screening a close-range user set U positioned in a preset collaboration distance; the method comprises the steps that identity verification is conducted on users in a close-range user set U, and the users are divided into main authorized personnel, common authorized personnel and unauthorized personnel; Judging whether the automatic clear display condition is met according to the result of the identity verification, and outputting an automatic clear permission signal; And when the automatic clear permission signal is negative and the duration of the presence time of the master authority is detected to be not less than a first preset time threshold, prov