发明名称 |
METHOD AND SYSTEM FOR CONTENT RETRIEVAL BASED ON RATE-COVERAGE OPTIMIZATION |
摘要 |
A content retrieval method including: extracting a plurality of fingerprints including a plurality of video fingerprints and audio fingerprints from contents stored in a content database; determining representative video fingerprints of the video frames and representative audio fingerprints of the audio sequences; determining a data rate indicating a storage limitation and a coverage indicating a number of searching results to be returned; storing selected representative video fingerprints and representative audio fingerprints based on the storage limitation indicated by the data rate in a fingerprint database; receiving a query containing at least one of video data and audio data submitted by a user; extracting at least one query fingerprint representing the query; determining a number of fingerprints most matching the query fingerprint based on the coverage to generate search results indicating matching contents represented by the number of most matching fingerprints; and returning the search results to the user. |
申请公布号 |
US2017060862(A1) |
申请公布日期 |
2017.03.02 |
申请号 |
US201514835004 |
申请日期 |
2015.08.25 |
申请人 |
TCL RESEARCH AMERICA INC. |
发明人 |
WANG HAOHONG;NING GUANGHAN;ZHANG ZHI;REN XIAOBO |
分类号 |
G06F17/30 |
主分类号 |
G06F17/30 |
代理机构 |
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代理人 |
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主权项 |
1. A content retrieval method, comprising:
extracting a plurality of fingerprints including a plurality of video fingerprints and a plurality of audio fingerprints from contents stored in a content database, the contents having video frames corresponding to the video fingerprints and associated audio sequences corresponding to the audio fingerprints; determining representative video fingerprints of the video frames and representative audio fingerprints of the audio sequences; determining a data rate indicating a storage limitation and a coverage indicating a number of searching results to be returned; storing selected representative video fingerprints and representative audio fingerprints based on the storage limitation indicated by the data rate in a fingerprint database; receiving a query containing at least one of video data and audio data submitted by a user; extracting at least one query fingerprint representing the query; determining a number of fingerprints most matching the query fingerprint based on the coverage to generate search results indicating matching contents represented by the number of most matching fingerprints; and returning the search results to the user. |
地址 |
San Jose CA US |