Multi-view Audio Video Playback Synchronization
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Solution Overview
Problem
Current video sharing platforms fail to effectively organize and present user-generated videos of real-world events, losing temporal and spatial context, leading to a disjointed viewing experience as users cannot seamlessly transition between different viewpoints or times within an event.
Innovation Solution
An interactive multi-view system that synchronizes audio and video content based on a common timeline, determines camera positions, and presents media items in a map-based interface, allowing users to navigate through events in space and time, predicting user preferences to reduce bandwidth usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple user-generated videos of the same event are collected and presented in a list format, then the quantity of video content increases, but the temporal and spatial context is lost making navigation difficult
Solution Approach 1:
The patent transforms the traditional one-dimensional linear video list into a two-dimensional spatial map interface. Videos are positioned according to their geographic location and oriented according to their拍摄 direction, adding spatial dimensions to the navigation experience. This allows users to intuitively understand the spatial relationships between different video viewpoints and easily navigate by dragging and dropping video thumbnails along the event timeline.
2Loss of information
If videos are synchronized to a common timeline, then temporal context is maintained, but the system complexity increases due to audio correlation and alignment requirements
Solution Approach 1:
The system automatically performs audio correlation and temporal alignment without requiring manual intervention. The audio synchronization module autonomously correlates audio tracks from multiple videos, determines temporal offsets, and aligns them to a common event timeline. This self-service approach maintains temporal context while minimizing the operational complexity for users.
Solution Approach 2:
The patent replaces manual video synchronization processes with automated audio-based correlation algorithms. Instead of requiring users to manually align videos, the system uses audio fingerprinting and correlation techniques to automatically determine temporal relationships, substituting mechanical manual operations with automated computational processes.
3Adaptability or versatility
If the system presents all video viewpoints simultaneously, then viewpoint diversity is maximized, but bandwidth consumption increases due to buffering multiple video streams
Solution Approach 1:
The system performs predictive buffering by analyzing user interaction patterns and pre-loading video streams that are likely to be selected next. Based on the spatial arrangement of video thumbnails and user dragging behavior, the system anticipates which videos will be viewed and buffers them in advance, reducing actual bandwidth consumption during playback while maintaining viewpoint diversity.
4Loss of information
If videos are arranged in a spatial map interface, then spatial context is visualized, but the device complexity increases due to map rendering and interaction handling
Solution Approach 1:
The system uses simplified graphical representations (thumbnails) of videos positioned on a map interface rather than rendering full video content. These thumbnail copies convey spatial information and video identity without requiring full video stream rendering, reducing device complexity while maintaining spatial context visualization. The map interface itself is a simplified copy or abstraction of the actual event space.
Data Source
AI summary
An interactive multi-view module identifies a plurality of media items associated with an event. Each of the plurality of media items is created by capturing the event. The interactive multi-view module synchronizes the audio portions of the media items according to a common reference timeline. The interactive multi-view module provides the media items for presentation in an interactive multi-view player interface based on the synchronized audio portions and multiple relative geographic locations. The interactive multi-view player interface allows a user of a plurality of users to switch between the plurality of media items, and indicates a video density indicating a quantity of media items available at a given point in time and a popularity indicator of one of the media items at the given point in time. The popularity indicator is determined using factors comprising a number of viewers of the media items at the given point in time.