Media Identification Match Rate via Signature Segmentation
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Solution Overview
Problem
Existing media monitoring systems face challenges in accurately tracking over-the-top (OTT) media consumption due to the dynamic and varied nature of OTT content, which is difficult to maintain in reference databases, leading to reduced accuracy and increased storage burdens.
Innovation Solution
The method involves generating preliminary signatures for portions of media elements, storing them in a preliminary signature database, and comparing them to signatures from monitored media to determine impressions and hits, with media elements meeting a threshold being expanded to full signatures and added to a reference database for comprehensive monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If full signatures for all media elements are stored in the reference database, then media identification accuracy is improved, but storage requirements increase significantly
Solution Approach 1:
The patent segments the reference database into two distinct components: a preliminary signature database storing condensed representations (e.g., audio fingerprints, video hashes) of all media elements, and a full signature database storing complete media signatures. This segmentation allows the system to maintain high identification accuracy for popular content while minimizing storage requirements for the overall database.
Solution Approach 2:
The system implements partial action by initially storing only preliminary signatures for all media elements rather than full signatures. When media elements exceed viewing thresholds, the system then performs the additional action of generating and storing their full signatures. This approach optimizes storage usage by maintaining only the necessary level of detail for each media element.
2Reliability
If the reference database includes all OTT media content, then match rate for media identification is improved, but device complexity and maintenance burden increase
Solution Approach 1:
The patent implements a dynamic database structure where the composition of the reference database changes based on media consumption patterns. As media elements are viewed and their impression counts increase, they are dynamically transitioned from the preliminary signature database to the full signature database. This dynamic adaptation allows the system to maintain high match rates for popular content while keeping the overall database structure manageable.
Solution Approach 2:
The system performs preliminary action by pre-processing media elements into condensed preliminary signatures and storing them in advance in the preliminary signature database. This preliminary preparation enables rapid identification of popular content, which then triggers the selective generation of full signatures only when needed, rather than maintaining all full signatures from the outset.
3Measurement precision
If comprehensive media monitoring is implemented, then measurement accuracy is improved, but processing time and computational resources increase
Solution Approach 1:
The system applies partial action by performing comprehensive media monitoring only for media elements that have exceeded their viewing thresholds. For lesser-viewed content, the system performs only preliminary signature matching, which is computationally less intensive. This selective approach maintains measurement accuracy for popular content while reducing overall processing time and computational resource consumption.
Data Source
AI summary
Methods and apparatus are disclosed herein that increase a match rate for over-the-top media. An example apparatus includes an audience measurement interface to receive a first signature of media monitored by a panelist meter and a media element analyzer to compare the first signature to a reference signature stored in a reference database, in response to the first signature not matching the reference signature, compare the first signature to a preliminary signature stored in a preliminary database, determine a number of hits associated with a media element based on the second comparison, and when the number of hits meets a threshold, generate a second signature of the media element, the second signature having a greater duration than the preliminary signature, wherein the second signature is an expanded version of the preliminary signature.