Dynamic Fingerprint Transmission for TV Content Recognition
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Solution Overview
Problem
Current automatic contents recognition (ACR) systems for TV content identification incur unnecessary server maintenance costs and network bandwidth delays due to periodic fingerprint searches, even when content remains unchanged.
Innovation Solution
An electronic apparatus that dynamically adjusts the interval for transmitting fingerprints to a server based on content changes, reducing unnecessary searches by identifying changes in multimedia data and adjusting the search subjects across different content databases, thereby optimizing server load and bandwidth usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If periodic fingerprint searches are performed even when content remains unchanged, then content recognition accuracy is maintained, but server maintenance cost increases
Solution Approach 1:
The system dynamically adjusts the fingerprint transmission interval based on content change detection. When content changes are detected, the interval is reduced to ensure accurate recognition; when no changes occur, the interval is extended to reduce server load and maintenance costs, resolving the contradiction between maintaining reliability and reducing energy loss
Solution Approach 2:
The system changes the time interval parameter for fingerprint transmission based on content change status. By adjusting this parameter dynamically rather than using a fixed periodic interval, the system achieves both accurate content recognition and reduced server maintenance costs
2Reliability
If periodic fingerprint data transmission occurs even when content is unchanged, then content identification is maintained, but network bandwidth is congested
Solution Approach 1:
The system dynamically adjusts fingerprint transmission timing based on content change detection. Transmission intervals are shortened when content changes occur to maintain identification accuracy, and extended when content remains stable to reduce network bandwidth consumption
Solution Approach 2:
The system uses periodic content change detection to trigger fingerprint transmission only when necessary. This conditional periodic action maintains content identification reliability while minimizing unnecessary network traffic and bandwidth congestion
3Speed
If fingerprint searches are performed frequently, then content change detection speed is improved, but server load increases
Solution Approach 1:
The system dynamically adjusts the search frequency based on content change detection needs. When changes are detected, search frequency increases to improve detection speed; when no changes occur, frequency decreases to reduce server load
Solution Approach 2:
The system uses feedback from content change detection results to adjust subsequent fingerprint search frequency. This feedback mechanism ensures fast content change detection when needed while minimizing server load during stable content periods
Data Source
AI summary
An electronic apparatus and a method of controlling the same are provided. The electronic apparatus includes a communication interface and a processor configured to receive multimedia data from an external apparatus, obtain a first finger print of first frames among a plurality of frames included in the multimedia data, the first frames being included in a first time interval, and transmit the first finger print to the server; identify whether a content in the multimedia data has been changed and a time point indicating a time of identifying a change in the content; based on identifying that the content has been changed, obtain a second finger print of a frame corresponding to the time point, and transmit the second finger print to the server; receive content information corresponding to the second finger print, and determine whether to change the first time interval based on the content information.