Audio-Video Metadata Association via Proximity Region Overlap
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Solution Overview
Problem
Existing surveillance systems lack an efficient method to associate audio information with video data captured by cameras without direct physical or communicative connections, limiting the integration of audio and video metadata for enhanced security monitoring.
Innovation Solution
A system and method that utilize microphones and video cameras with defined regions to determine overlap between audio and video capture areas, updating metadata to indicate proximity connections between audio and video data, enabling synchronized audio-video metadata association.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If video cameras are used without direct physical or communicative connection to microphones, then system installation flexibility and ease of operation are improved, but the ability to associate audio information with video data deteriorates
Solution Approach 1:
The patent introduces a server as an intermediary component that receives video data from video cameras and audio data from microphones separately, then performs region overlap determination and audio-video association through metadata comparison. This mediator enables cameras and microphones to remain physically independent while still achieving synchronized audio-video association through the server's coordination.
Solution Approach 2:
The patent transitions from direct physical connection in spatial dimension to data association in temporal and informational dimensions. By using timestamp correlation and region overlap analysis in metadata space, the system associates audio and video without requiring physical proximity or direct connection, solving the contradiction through dimensional transformation.
2Measurement precision
If region overlap determination is performed by comparing audio metadata and video metadata, then accurate audio-video association is achieved, but processing time and computational complexity increase
Solution Approach 1:
The patent performs region overlap determination and audio-video association in advance during the metadata processing stage, before actual security monitoring events occur. By pre-establishing the relationships between audio regions and video regions through timestamp and spatial coordinate comparison, the system reduces real-time processing requirements while maintaining high association accuracy.
3Adaptability or versatility
If multiple video cameras and microphones are integrated into the system, then security monitoring coverage is improved, but system complexity and difficulty of managing associations increase
Solution Approach 1:
The patent implements a universal server-based platform that handles multiple video cameras and microphones through a single integrated architecture. The server performs centralized metadata reception, region overlap determination, and association management for all devices, providing multi-functional capability that simplifies system management despite increased device quantity and coverage.
Data Source
AI summary
A method and system for associating audio information with a video camera based on a proximity connection is disclosed. The system includes at least one microphone configured to capture audio within a first dimensionally-defined region detailed in audio metadata of the audio. The system also includes at least one video camera having a dynamic or static Field Of View (FOV) configured to capture video, and the FOV providing camera coverage encompassing at least a second dimensionally-defined region defined in metadata of the video. Based on a determination that a region overlap exists between the first dimensionally-defined region and the second dimensionally-defined region, the metadata of the video is updated to indicate availability of at least a time-delimited portion of the captured audio having a proximity connection to at least a corresponding time-delimited portion of the captured video.