公开(公告)号：US20190191213A1

公开(公告)日：2019-06-20

申请号：US16283491

申请日：2019-02-22

Applicant: SNELL ADVANCED MEDIA LIMITED

Inventor： Jonathan DIGGINS

IPC: H04N21/442 ,  G06F16/783 ,  G06F16/683 ,  H04N21/44 ,  G06K9/62 ,  H04N17/00 ,  G06K9/00

CPC classification number: H04N21/442 ,  G06F16/683 ,  G06F16/783 ,  G06K9/00718 ,  G06K9/00744 ,  G06K9/00758 ,  G06K9/6201 ,  G06K9/6212 ,  H04H20/12 ,  H04H2201/90 ,  H04N17/00 ,  H04N21/44008 ,  H04N2017/006

Abstract: A system and method is provided for managing visual content. In one instance, an exemplary method includes receiving a stream of video fingerprints derived in a fingerprint generator by an irreversible data reduction process, from respective temporal regions within a particular visual content stream and at a fingerprint processor that is physically separate from the fingerprint generator via a communication network. The fingerprints are processed in the fingerprint processor to generate metadata which is not directly encoded in the fingerprints. Processing of the fingerprints includes windowing the stream of fingerprints with a time window, deriving frequencies of occurrence of particular fingerprint values or ranges of fingerprint values within each time window, determining statistical moments or entropy values of said frequencies of occurrence, comparing said statistical moments or entropy values with expected values for particular types of content, and generating metadata representing the type of the visual content.

公开(公告)号：US20190251387A1

公开(公告)日：2019-08-15

申请号：US16310762

申请日：2017-06-16

Applicant: SNELL ADVANCED MEDIA LIMITED

Inventor： Jonathan DIGGINS

IPC: G06K9/46 ,  G06K9/00

CPC classification number: G06K9/4676 ,  G06K9/00711

Abstract: A image processing system and method are provided for receiving an image with a set of feature points characteristic of the image and selecting each of the feature points to be a selected feature point. Moreover, a number of neighboring feature points associated with the selected feature point are identified and a first hash is created that includes information associated with a first pair of neighboring feature points, with the information associated with the first and second neighboring feature points representative of the relative location of these neighboring feature points to the selected feature point. Moreover, a second hash is created that includes information associated with, a second pair of neighboring feature points, with the information associated with these neighboring feature points representative of the relative location of these to the selected feature point.