Handling substream dependencies when authenticating a video data stream
By checking the credibility of video data streams in time-period units and utilizing hash functions and verification strings, the credibility checking problem of video data streams under low signaling overhead and high flexibility is solved, realizing time consistency verification and reducing computational load in adaptive streaming scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG EV
- Filing Date
- 2026-01-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies struggle to maintain a balance between high flexibility and high reliability while minimizing computational load in video data stream credibility checks, especially when dealing with low signaling overhead and extracting sub-parts.
By checking the credibility of the video data stream in units of time periods, exporting multiple sub-streams and forming a verification string based on a hash function and a reference hash value, the credibility of the video data stream is checked. This allows streaming to start at any access point and verify portions of the video data stream, supporting adaptive streaming scenarios.
It enables trustworthiness checks of video data streams with low signaling overhead and high flexibility, supports time consistency verification in adaptive streaming scenarios, and reduces computational load and storage requirements.
Smart Images
Figure CN122420535A_ABST