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Title:
映像識別子抽出装置
Document Type and Number:
Japanese Patent JP4725690
Kind Code:
B2
Abstract:
A video signature extraction device includes an each-picture feature extraction unit which extracts a feature of each picture, which is a frame or a field, as an each-picture visual feature from an input video; a time axial direction change region extraction unit which analyzes an image change in a time direction with respect to predetermined regions in a picture from the video, obtains a region having a large image change, and generates change region information which is information designating the region; an each-region feature extraction unit which extracts a feature of the region corresponding to the change region information as an each-region visual feature from the video; and a multiplexing unit which multiplexes the each-picture visual feature, the each-region visual feature, and the change region information, and generates a video signature.

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Inventors:
Ryoma Oami
Kota Iwamoto
Application Number:
JP2010547434A
Publication Date:
July 13, 2011
Filing Date:
January 20, 2010
Export Citation:
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Assignee:
NEC
International Classes:
H04N5/76; G06F17/30; G06T7/00; G06T7/20; H04N5/91; H04N7/173; H04N21/235; H04N21/432; H04N21/435
Domestic Patent References:
JP2000194727A2000-07-14
JP2006054802A2006-02-23
JP2008040682A2008-02-21
Attorney, Agent or Firm:
Baba Shiba
Sakai Hiromi
Go Wakayama



 
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