Camera Image Sharing Authentication and Position Estimation
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Solution Overview
Problem
Existing image sharing methods between multiple cameras often result in unintended image diffusion and privacy invasion, particularly when unknown users are involved, due to inaccurate camera position estimation and prolonged processing times, which degrade the accuracy of correspondence derivation and increase the risk of secret photography.
Innovation Solution
An image photographing method that employs an authentication mechanism on the server side to prevent unauthorized image diffusion by judging whether a target camera is photographing the subject and allowing users to browse shared images only during the relevant period, using a different method for deriving camera positional relationships to improve accuracy and prevent privacy invasion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If image sharing is enabled between multiple cameras without authentication, then image sharing functionality is improved, but privacy security deteriorates due to unintended image diffusion
Solution Approach 1:
The patent introduces a server as an intermediary between multiple cameras and users. The server authenticates users, manages camera position information, and controls image distribution. This intermediary structure enables image sharing functionality while preventing unauthorized access and unintended diffusion, thereby resolving the contradiction between sharing capability and privacy security.
2Productivity
If camera position estimation is performed without authentication, then processing speed is improved, but measurement precision deteriorates due to inaccurate position data
Solution Approach 1:
The patent performs camera position estimation and authentication in advance before image sharing. The server预先 obtains camera position information, estimates positions based on image data, and authenticates users before allowing image access. This preliminary action ensures accurate position data is available when needed, improving both precision and overall processing efficiency.
3Ease of operation
If browsing period is extended for shared images, then user convenience is improved, but image security deteriorates due to increased diffusion risk
Solution Approach 1:
The patent implements dynamic browsing period management where the server sets different time limits for different users based on their authentication results and camera position relationships. The browsing permission is granted for a specific time period that automatically expires, allowing convenient access during the period while ensuring security through automatic restriction afterward. This dynamic approach balances user convenience with image security.
Data Source
AI summary
A method controls access permission to an image including receiving session information from a first camera at a first position, the session information indicating a subject to be photographed and a session in which the first camera joins, receiving an image of the subject from the first camera, updating the session information such that a second camera, at a second position, joins the session, and monitoring whether the second camera joins the session. A first period is calculated in which the second camera joins the session, a second period is calculated based on the first period, and access permission to a shared image is controlled such that the second camera downloads the shared image during the second period and does not download the shared image outside of the second period, the shared image being one of the image and an image generated based on the image.