FINGERPRINTING MEDIA CONTENT USING HASHING

专利名称：FINGERPRINTING MEDIA CONTENT USING

HASHING

发明人：Juikun Chen申请号：US15886848申请日：20180202

公开号：US20180160169A1公开日：20180607

专利附图：

摘要：A server device includes memory to store: a database of frame fingerprintsordered sequentially by media item number and frame number for media items, and ahash table containing (key, value) entries each including a hashed frame fingerprint and

index number(s) to the database. A processor coupled to the memory is to, for an inputset of hashed frame fingerprints, select a most recent hashed frame fingerprint. Theprocessor performs a lookup with the most recent hashed frame fingerprint to identify aplurality of index numbers from a matching entry. The processor retrieves a targetplurality of frame fingerprints from the database using each of the plurality of indexnumbers as a starting point; calculates a rank distance between the input set and eachrespective target plurality of frame fingerprints; and selects the target plurality of framefingerprints for which the rank distance is shortest, to identify a media item.

申请人：Sorenson Media, Inc.

地址：Draper UT US

国籍：US

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