Media Content Sharing Server for Traffic Accident Footage Retrieval
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Solution Overview
Problem
Existing systems fail to effectively share video content among devices, such as car video recorders, especially in scenarios like traffic accidents where footage from surrounding vehicles is needed, due to lack of compatibility and sharing mechanisms.
Innovation Solution
A media content sharing method and server system that allows client devices to query and retrieve media segments from content providing devices by matching query information with stored description files, enabling the transmission of target media segments across devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If video contents are stored on local devices like digital video recorders, then storage capability is maintained, but sharing capability deteriorates
Solution Approach 1:
A server is introduced as an intermediary component between content providing devices and client devices. The server receives query messages from clients, searches for matching media contents in the cloud, and transmits relevant segments to clients. This mediator architecture enables sharing capability without requiring direct peer-to-peer connections between devices, thus improving adaptability while managing system complexity through centralized coordination.
Solution Approach 2:
The server system provides universal access to media contents stored across multiple content providing devices. It handles various types of queries (by time, location, content characteristics) and serves multiple client devices simultaneously. This multi-functional approach allows any device with recording capability to both store and share contents, enhancing versatility while the server manages the complexity of coordination.
2Loss of information
If no query mechanism is implemented, then device simplicity is maintained, but information retrieval capability deteriorates
Solution Approach 1:
Media contents are pre-indexed with metadata including time information, location information, and content characteristics before storage. The server maintains a database of description files that describe these attributes. When a query is received, the server can quickly search and retrieve matching contents without requiring complex real-time analysis, thus improving information retrieval capability while managing system complexity through pre-organization of data.
Solution Approach 2:
The system implements a feedback loop where query results are returned to client devices, allowing users to access relevant media segments. The server receives query messages, processes them against stored description files, and provides feedback in the form of matching media segments. This feedback mechanism improves information retrieval capability while the standardized query-response protocol manages system complexity.
3Productivity
If media contents are not segmented, then storage simplicity is maintained, but retrieval efficiency deteriorates
Solution Approach 1:
Media contents are divided into multiple segments based on time information and other characteristics. Each segment is independently stored and can be retrieved separately. The server manages description files that map query criteria to specific segments. This segmentation improves retrieval efficiency by allowing selective access to only the needed portions of media contents, while the standardized segmentation format manages data structure complexity.
Data Source
AI summary
A media content sharing method is provided which includes receiving a query message including query information associated with a media content from a client device, determining whether a storage unit contains a target description file including at least a segment information including characteristics corresponding to the query information, whereby the storage unit stores a plurality of description files uploaded from a plurality of content providing devices, and transmitting a request message to a first content providing device which uploads the target description file, for requesting the first content providing device to provide a target media segment.