Video Stabilization Synchronization via Rotational Track Adjustment
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Solution Overview
Problem
Existing video stabilization methods fail to properly synchronize camera orientation data with video frames, leading to misalignment and improper stabilization due to differences in data generation rates and timing.
Innovation Solution
A system that synchronizes visual and rotational position information by allowing user modification of timing through a synchronization adjustment option, ensuring temporal alignment between visual and rotational position tracks, thereby stabilizing video frames effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If rotational position information is stored at a different rate than visual information, then data storage flexibility is improved, but temporal alignment between rotational position track and visual track deteriorates
Solution Approach 1:
The patent introduces a synchronization component as an intermediary that mediates between the rotational position track and visual track. This component receives data from both tracks at their respective rates and performs temporal alignment processing, allowing each track to maintain its own storage rate while achieving synchronized output. The synchronization component acts as a buffer and coordinator that resolves the temporal misalignment without requiring changes to the underlying storage rates.
2Productivity
If camera orientation data is not generated at the same rate as video data, then data generation efficiency is improved, but video stabilization quality deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-synchronizing the rotational position information with the visual information during the data processing stage. The synchronization component performs temporal alignment in advance before the stabilization process, ensuring that when the stabilization algorithm executes, both data streams are properly aligned. This preliminary synchronization allows the system to maintain efficient data generation rates while ensuring stabilization quality.
3Speed
If rotational position data is misaligned with video data, then processing speed is improved, but stabilization accuracy deteriorates
Solution Approach 1:
The patent replaces the traditional mechanical synchronization approach (where data must be generated at identical rates) with a software-based temporal alignment system. Instead of forcing hardware to synchronize at the same rate, the synchronization component uses digital signal processing to align the rotational position data with video data in the temporal domain. This substitution allows independent processing speeds while achieving accurate alignment through computational methods.
Data Source
AI summary
An image capture device may capture video frames while experiencing motion. The video frames may be stored in a visual track, and rotational positions of the image capture device may be stored in a rotational position track. The visual track and the rotational position track may not be temporally aligned. A looping stabilized view of the view frames and a synchronization adjustment option may be presented on a display. The synchronization adjustment option may enable user modification of timing of the rotational positions stored within the rotational position track. Timing modification of the rotational positions may cause changes in the looping stabilized view, which may be used as feedback on whether the synchronization between the visual track and the rotational position track is being improved or not by the timing modification of the rotational positions.