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1. WO2013104432 - DETECTING VIDEO COPIES

Publication Number WO/2013/104432
Publication Date 18.07.2013
International Application No. PCT/EP2012/060057
International Filing Date 29.05.2012
IPC
G06F 17/30 2006.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
17Digital computing or data processing equipment or methods, specially adapted for specific functions
30Information retrieval; Database structures therefor
G06K 9/00 2006.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
CPC
G06F 16/783
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
70of video data
78Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
783using metadata automatically derived from the content
G06V 20/40
G06V 20/46
G06V 20/48
G06V 40/1329
H04N 21/44008
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
44Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
44008involving operations for analysing video streams, e.g. detecting features or characteristics in the video stream
Applicants
  • QATAR FOUNDATION [QA]/[QA] (AllExceptUS)
  • HOARTON, Lloyd [GB]/[GB] (TT)
  • HEFEEDA, Mohamed [CA]/[QA] (UsOnly)
  • HARVEY, R. Cameron [CA]/[QA] (UsOnly)
Inventors
  • HEFEEDA, Mohamed
  • HARVEY, R. Cameron
Agents
  • FORRESTERS
Priority Data
1200322.410.01.2012GB
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) DETECTING VIDEO COPIES
(FR) DÉTECTION DE COPIES VIDÉO
Abstract
(EN) A computer-implemented method for detecting a copy of a reference video, comprises segmenting respective ones of multiple frames of the reference video into multiple regions, determining sets of image features appearing in respective ones of the multiple frames, determining a measure for the relative number of image features for a given region across the multiple frames, generating a spatio-temporal signature for the reference video using the determined measures, and comparing the signature for the reference video against a spatio-temporal signature of a query video to determine a likelihood of a match.
(FR) Un procédé mis en œuvre par ordinateur pour détecter une copie d'une vidéo de référence, comprenant la segmentation, dans de multiples régions, de certaines trames parmi de multiples trames de la vidéo de référence, la détermination d'ensembles de caractéristiques d'image apparaissant dans certaines trames parmi de multiples trames, la détermination d'une mesure pour le nombre relatif de caractéristiques d'image pour une région donnée dans les multiples trames, la génération d'une signature spatio-temporelle pour la vidéo de référence en utilisant les mesures déterminées, et la comparaison de la signature pour la vidéo de référence avec une signature spatio-temporelle d'une vidéo de requête pour déterminer une probabilité de correspondance.
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