Image File Metadata Control for Network Transmission Integrity
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Solution Overview
Problem
Current systems for sharing and managing image files across networks lack efficient mechanisms for controlling data size and permissions, leading to potential file size exceedances and unauthorized modifications when additional data is added by external devices.
Innovation Solution
An information device and server system that generates and manages image files with embedded meta-information, including possibility information for external modifications, and a resizing unit that compresses data if the file size exceeds a set limit, ensuring file integrity and size constraints during network transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If image files are transmitted via network to external devices for sharing and additional data recording, then adaptability and versatility are improved, but file size control and permission management become problematic leading to potential size exceedances and unauthorized modifications
Solution Approach 1:
The patent applies preliminary action by embedding possibility information and size limitation data into the image file before transmission to external devices. This pre-configured metadata establishes permission rules and maximum file size thresholds in advance, enabling the receiving device to automatically control additional data recording without exceeding size limits or violating permissions, thus resolving the contradiction between sharing versatility and file size reliability
Solution Approach 2:
The patent implements feedback mechanisms where the external device monitors the accumulation of additional data during recording operations. When the total file size approaches the predetermined limitation, the system provides feedback to prevent further additions that would exceed the threshold. This closed-loop control ensures file size reliability while maintaining the ability to share and collaboratively edit image files
2Ease of operation
If additional data recording is permitted on transmitted image files, then ease of operation is improved, but manufacturing precision deteriorates due to potential unauthorized modifications
Solution Approach 1:
The patent applies local quality by differentiating permission levels for different regions or types of data within the image file structure. The possibility information embedded in the file specifies which meta information fields are open for additional recording and which are protected from modification. This selective permission system allows easy addition of permitted data while preserving the integrity of critical original information, resolving the contradiction between operational ease and information precision
Solution Approach 2:
The patent uses preliminary action by pre-defining permission boundaries and protected fields within the image file before transmission. The embedded possibility information establishes a framework that guides external devices on what can be modified and what must remain intact. This pre-established structure enables straightforward additional recording operations while automatically preventing unauthorized modifications to protected data, thus maintaining both ease of operation and information integrity
Data Source
AI summary
The information device includes an imaging unit that images a subject and generates image data of the subject, a meta information generating unit that generates meta information related to the image data generated by the imaging unit, a possibility information generating unit that generates, with respect to the meta information, possibility information setting whether or not change of original information is possible by an external device when the meta information is transmitted to the external device, and an image file generating unit that generates an image file associating the image data generated by the imaging unit, the meta information generated by the meta information generating unit, and the possibility information generated by the possibility information generating unit with one another.