Geographic Anchoring Video Streaming and Archiving
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Solution Overview
Problem
Current systems for geographic anchoring of video frames face inaccuracies due to reliance on camera position data, are computationally heavy, and bandwidth limitations, making precise geographical content retrieval and storage inefficient, especially in military and surveillance applications.
Innovation Solution
A method involving processing video frames to match image content with a geographic database, compressing the video using lossy techniques, and encoding geographic location data as a composite stream, allowing for accurate geographical anchoring and indexing, enabling efficient storage and retrieval based on image content location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If scene matching processing is used to achieve geographic anchoring of video frames, then measurement precision of geographic location is improved, but device complexity and computational requirements increase significantly
Solution Approach 1:
The patent performs scene matching processing in advance to generate geographic anchoring data before video compression and storage. By pre-computing the geographic coordinates of video frames and storing this metadata separately, the system achieves accurate geographic anchoring without requiring complex real-time processing infrastructure at remote locations.
Solution Approach 2:
The patent extracts geographic location information from video frames through scene matching processing, separates this metadata from the original video data, and stores it independently. This allows the video to be compressed using lossy techniques while preserving the extracted geographic anchoring data for later retrieval and display.
2Measurement precision
If uncompressed or minimally compressed video data is transmitted to ensure reliable scene matching, then measurement precision is improved, but bandwidth consumption increases prohibitively
Solution Approach 1:
The patent extracts only the essential geographic location metadata from the video frames through scene matching, rather than transmitting the full-resolution video data. This extracted geographic information is then transmitted alongside compressed video, enabling reliable geographic anchoring with minimal bandwidth consumption.
Solution Approach 2:
The patent creates a simplified copy of the geographic information (coordinates and anchoring data) from the original video frames, separate from the full video data. This geographic metadata copy is transmitted with the compressed video, allowing scene matching functionality to be reproduced at remote locations without requiring the original uncompressed video.
3Productivity
If video is compressed using high compression ratio lossy techniques for network transmission, then bandwidth efficiency is improved, but measurement precision for geographic anchoring deteriorates
Solution Approach 1:
The patent extracts geographic anchoring metadata from video frames before compression, preserving this critical location information separately from the compressed video data. This ensures that even though the video undergoes high compression ratio lossy techniques, the geographic precision is maintained through the separately stored and transmitted metadata.
4Adaptability or versatility
If full scene matching processing is performed at multiple remote locations, then geographic anchoring functionality is improved, but device complexity and processing capacity requirements become prohibitive
Solution Approach 1:
The patent performs the computationally intensive scene matching processing in advance at the video source, generating geographic anchoring metadata that is then transmitted with the compressed video. This preliminary action enables multiple remote locations to access and display geographically anchored video without requiring complex scene matching infrastructure at each location.
Solution Approach 2:
The patent transmits a copy of the geographic anchoring metadata alongside the compressed video stream. This metadata copy contains all necessary geographic information for scene matching, enabling remote locations to reproduce the geographic anchoring functionality using simple processing equipment rather than complex scene matching systems.
Data Source
AI summary
A system and method for generating compressed video with geographically-anchored-video functionality includes processing frames from a source video sequence by matching image content of the frames to image data from a geographic database to derive the geographic locations of pixels within at least part of the frames. The source video sequence is then compressed by a lossy video compression technique to generate a compressed video sequence, and the compressed video sequence is encoded together with data indicative of the geographic locations of pixels as a composite data stream. Also disclosed are methods for selective video archiving and retrieval based on the geographical footprint of the image content.