Spatial Content Track Data for Arbitrary-Time Playback
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Solution Overview
Problem
Existing methods for playing scene content from an arbitrary time point require processing and executing numerous scene description fragments, leading to increased processing time as the difference between the arbitrary time point and the initial time point increases.
Innovation Solution
A method involving the transmission of track data that includes scene descriptions and difference commands, allowing the reconstruction of scene content efficiently by referencing independent scene descriptions and applying difference commands to derive dependent scene descriptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the playback device reads all scene description fragments from the initial time point T1 to the arbitrary time point sequentially, then the scene content can be reconstructed, but the processing time increases significantly as the time difference grows
Solution Approach 1:
The scene description data is segmented into independent base scene descriptions and separate difference commands. Each difference command is associated with a specific time point and references a base scene description, allowing the playback device to selectively process only the necessary segments rather than all fragments sequentially.
Solution Approach 2:
Base scene descriptions are prepared in advance and stored independently. When playback is needed from an arbitrary time point, the device retrieves the appropriate base scene description and applies only the relevant difference commands that have already been pre-processed and organized by time point, avoiding sequential processing of all intermediate fragments.
2Adaptability or versatility
If the system provides complete scene descriptions for each time point, then playback from any time point is possible, but the data transmission and processing load increases
Solution Approach 1:
The invention extracts only the essential base scene descriptions and separates the incremental difference commands from the complete scene descriptions. This extraction allows the system to maintain arbitrary time point playback capability while transmitting only the necessary difference data rather than redundant complete scene descriptions for each time point.
Solution Approach 2:
Base scene descriptions are prepared and stored in advance as reference data. Difference commands are pre-processed and organized by time point, allowing the system to provide complete playback capability without transmitting all complete scene descriptions, thereby reducing data volume while maintaining versatility.
Data Source
AI summary
A method, performed by a scene content transmitter, of processing scene content, according to an embodiment of the present disclosure, may include constructing at least one track data associated with a plurality of scene descriptions constituting the scene content, wherein the at least one track data includes a first sample including a scene description at a first time point and a second sample associated with a scene description at a second time point after the first time point and based on the first sample, and transmitting the at least one track data to a scene content receiver, and a header of the second sample may include information related to a target referenced by the second sample.