Image Capturing Metadata Transfer for Complete Recording Context
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Solution Overview
Problem
Existing IP-based broadcasting systems face issues with insufficient metadata transmission when moving image data is recorded and stored in an external apparatus, as metadata generated by the self-video processing apparatus may not be fully utilized by the external apparatus.
Innovation Solution
An image capturing apparatus that transmits moving image data and associated metadata to an external apparatus, generating metadata at the start and end of recording, and transmitting it to the external apparatus via a communication unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the self-video processing apparatus performs IP streaming and stores moving image data in an external apparatus, then the moving image data can be externally transmitted and stored, but metadata to be referred to by the external apparatus may be insufficient if only directly transmitting the additional information file stored in the self-apparatus
Solution Approach 1:
The patent applies preliminary action by generating and transmitting metadata at the start of recording before the actual recording process completes. This ensures that the external apparatus receives essential metadata information in advance, eliminating the insufficiency of metadata that would otherwise be available only after recording ends. The metadata generation unit creates metadata files containing recording start time, format, and other essential information that are transmitted to the external apparatus during the recording process.
2Loss of information
If additional information files with metadata are transmitted to external apparatus, then external apparatus can refer to metadata for managing moving image data, but the metadata may not include complete information from start to end of recording
Solution Approach 1:
The patent applies segmentation by dividing metadata transmission into multiple parts: metadata at the start of recording is transmitted separately, and metadata at the end of recording is transmitted separately. This segmentation allows the external apparatus to receive and process metadata in manageable portions, ensuring complete information is available while maintaining transmission efficiency. The metadata generation unit creates distinct metadata files for recording start and recording end, which are transmitted at appropriate times.
3Loss of information
If metadata is generated and transmitted at both start and end of recording, then complete metadata information is provided to external apparatus, but the complexity of metadata management increases
Solution Approach 1:
The patent applies feedback by implementing a metadata transmission system that provides information back to the external apparatus at key points in the recording process. The metadata generation unit creates metadata files that contain feedback information about recording status, format, and timing, which are transmitted to the external apparatus. This feedback mechanism allows the external apparatus to manage metadata effectively by receiving structured information at appropriate moments during the recording process.
Data Source
AI summary
An image capturing apparatus configured to transmit, via a communication unit, moving image data obtained by image capturing to an external apparatus. The apparatus transmits, upon receiving an instruction to start recording, the moving image data to the external apparatus, ends, upon receiving an instruction to end the recording, the transmission of the moving image data, generates, upon receiving the instruction to start the recording, metadata associated with the start of the recording of the moving image data, and generates, upon receiving the instruction to end the recording, metadata associated with the end of the recording of the moving image data. The apparatus transmits, upon receiving the instruction to end the recording, metadata from the start of the recording to the end of the recording to the external apparatus.