Camera Metadata Transfer Control for Chunked Video Recording
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Solution Overview
Problem
Existing systems inefficiently transmit metadata files associated with divided moving image files, as the metadata becomes understandable only after the whole moving image is generated, and transmitting metadata files every time they are generated is considered inefficient.
Innovation Solution
A communication apparatus that receives notifications from an image capturing apparatus about generated and updated metadata files, and selectively requests metadata files only when necessary, optimizing the transmission process by avoiding unnecessary metadata transfers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metadata files are transmitted every time they are generated during divided moving image recording, then the receiving apparatus can have up-to-date metadata information, but the transmission efficiency deteriorates due to unnecessary repeated transmissions
Solution Approach 1:
The patent implements periodic transmission of metadata files only at specific intervals - when the divided moving image file generation is completed. This replaces continuous transmission with scheduled periodic transmission, reducing unnecessary communications while ensuring the receiving apparatus obtains complete metadata information at appropriate times
Solution Approach 2:
The patent performs preliminary determination at the transmitting apparatus to identify when metadata transmission is actually necessary. By using notification reception and generation completion detection before transmission, the system avoids premature or redundant transmissions, ensuring metadata is sent only when complete and necessary
2Productivity
If metadata files are transmitted only when generation is completed, then transmission efficiency is improved, but the receiving apparatus may experience delays in obtaining metadata information
Solution Approach 1:
The transmitting apparatus performs preliminary detection of generation completion using notification reception before initiating transmission. This advance detection mechanism ensures that as soon as metadata is ready, transmission is triggered immediately, minimizing any potential delay while avoiding premature transmissions
Solution Approach 2:
The system uses feedback from notification reception to trigger transmission only when necessary. The receiving apparatus sends notifications that feed back to the transmitting apparatus, creating a responsive system that transmits metadata at the optimal moment - neither too early nor too late - based on actual generation status
Data Source
AI summary
A communication apparatus includes a reception unit which receives a notification from an image capturing apparatus, and a control unit. If the received notification indicates that a divided moving image file to be generated using a chunk recording method has been generated, the control unit requests the divided moving image file from the image capturing apparatus. If the received notification indicates that a metadata file associated with the divided moving image file has been generated, the control unit does not request the metadata file from the image capturing apparatus. If the received notification indicates that a metadata file associated with the divided moving image file has been updated, the control unit requests the metadata file from the image capturing apparatus.