Title:
SIMILARITY COMPARISON METHOD AND APPARATUS FOR HIGH-DIMENSIONAL IMAGE FEATURES
Document Type and Number:
WIPO Patent Application WO/2017/012491
Kind Code:
A1
Abstract:
A similarity comparison method and apparatus for high-dimensional image features can improve the retrieval speed and the retrieval precision for similarity retrieval of mass images based on local sensitive hash codes. The method comprises: performing dimension reduction processing on extracted image feature vectors by means of a local sensitive hash algorithm to obtain low-dimensional feature vectors (S31); averagely segmenting the low-dimensional feature vectors and setting up a segmentation index table (S32); retrieving the segmentation index table by using segmented low-dimensional feature vectors of a to-be-queried image to obtain a candidate sample set (S33); and performing similarity measurement on samples in the candidate sample set and the low-dimensional feature vectors of the to-be-queried image separately (S34).
Inventors:
LIN XIDONG (CN)
MOU CHUAN (CN)
MOU CHUAN (CN)
Application Number:
PCT/CN2016/089866
Publication Date:
January 26, 2017
Filing Date:
July 13, 2016
Export Citation:
Assignee:
BEIJING JINGDONG SHANGKE INFORMATION TECHNOLOGY CO LTD (CN)
BEIJING JINGDONG CENTURY TRADING CO LTD (CN)
BEIJING JINGDONG CENTURY TRADING CO LTD (CN)
International Classes:
G06F17/30
Foreign References:
| CN105095435A | 2015-11-25 | |||
| CN103345496A | 2013-10-09 | |||
| CN104050247A | 2014-09-17 | |||
| CN104572804A | 2015-04-29 |
Attorney, Agent or Firm:
CHINA SINDA INTELLECTUAL PROPERTY LTD. (CN)
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