Interaction-Aware Video Synopsis for Preserving Object Timing
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Solution Overview
Problem
Classic video synopsis methods fail to maintain the original temporal relationships between interacting objects, leading to lost interactions and the creation of new interactions that were not present in the original video.
Innovation Solution
The method and system generate an interaction-aware video synopsis by maintaining the original relative time between interacting objects and visually distinguishing real interactions from those created during the synopsis process, using object detection and tracking techniques to merge or mark interacting objects as a single combined tube.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If classic video synopsis methods are used to compress video time, then the overall play time is reduced, but the temporal relationships between interacting objects are lost
Solution Approach 1:
The patent segments interacting objects into separate tubes while maintaining their temporal relationships. Each object is represented as a tube containing frames at specific time points, and the relative timing between objects is preserved through the tube structure and playback mechanism, allowing interactions to be maintained despite time compression.
Solution Approach 2:
The patent implements dynamic playback control where the playback speed of each tube can be independently adjusted. This allows the system to maintain original temporal relationships between interacting objects by controlling the playback rate of each tube, while still achieving overall time compression through selective acceleration of non-interacting segments.
2Device complexity
If objects are treated separately in video synopsis, then processing is simplified, but interactions between objects are lost or created
Solution Approach 1:
The patent segments objects into separate tubes for independent processing, which simplifies the processing complexity. However, it simultaneously tracks interactions between objects by monitoring their relative positions and temporal relationships, allowing accurate representation of interactions while maintaining processing simplicity through modular tube-based architecture.
Solution Approach 2:
The patent implements feedback mechanisms that detect interactions between objects during the synopsis generation process. The system monitors the behavior of tubes representing different objects and adjusts the playback parameters to preserve detected interactions, ensuring accurate representation while maintaining the benefits of separate object processing.
3Loss of time
If time compression is applied to create synopsis video, then the video duration is reduced, but new interactions are created that were not in the original video
Solution Approach 1:
The patent uses dynamic playback control to prevent the creation of spurious interactions. By independently controlling the playback speed of each tube, the system can maintain the original temporal relationships between objects, ensuring that only genuine interactions from the source video are preserved in the compressed synopsis, while avoiding the creation of new interactions.
Data Source
AI summary
A method and system for generating an interaction-aware video synopsis are provided herein. The method may include the following steps: obtaining, a source video containing a plurality of source objects; extracting the source objects from the source video; detecting at least one object-interaction between at least two source objects; generating synopsis objects by sampling respective source objects; and generating a synopsis video having an overall play time shorter than the overall play time of the source video, by determining a play time for each one of the synopsis objects, wherein a relative display time in the synopsis video of the at least two synopsis objects created from the at least two source objects, detected as having an object-interaction therebetween, is the same as the relative display time of the at least two source objects in the source video.