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Picture clustering method and device

A clustering method and image technology, applied in the field of image processing, can solve the problems of low accuracy and recall rate, and achieve the effect of improving accuracy and recall rate

Active Publication Date: 2013-11-13
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method and device for image clustering to solve the defects of low accuracy and recall rate when clustering massive images in the prior art

Method used

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  • Picture clustering method and device
  • Picture clustering method and device

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] Please refer to figure 1 and figure 2 , figure 1 It is a schematic flow diagram of an embodiment of a method for image clustering in the present invention, figure 2 It is a schematic diagram of image clustering effect in the present invention. Such as figure 1 As shown, this embodiment includes:

[0032] Step S101: Extract global features and local features of multiple input pictures.

[0033] Step S102: performing initial clustering on the above-mentioned input pictures according to the above-mentioned global features to obtain preliminary clustering results corresponding to the above-mentioned global features, wherein the preliminary clustering results include more than one picture group.

[0034] Step S103: Perform secondary clus...

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Abstract

The invention provides a picture clustering method and device. The picture clustering method comprises the steps that A, global features and local features of a plurality of input pictures are extracted; B, the input pictures are clustered for the first time according to the global features so that a primary clustering result can be obtained, wherein the primary clustering result comprises more than one picture group; C, according to the local features, the pictures in each picture group are clustered for the second time so that the pictures in each picture group can be divided into more than one set, and a second clustering result of the input pictures is obtained. By means of the mode, accuracy and the recall rate can be effectively enhanced when massive pictures are clustered.

Description

【Technical field】 [0001] The present invention relates to image processing technology, in particular to a method and device for image clustering. 【Background technique】 [0002] Clustering a large number of pictures, and correspondingly processing pictures of the same category according to the clustering results, is the prerequisite for the picture search engine to return accurate search results to users. For example, clustering a large number of pictures, and removing duplicate pictures in the same category according to the clustering results can realize the deduplication work for a large number of pictures, so that when users search for pictures in a massive picture database, they can search for the same keyword Get as many results as possible. [0003] In the prior art, the method of clustering a large number of pictures is usually to extract the global features of the pictures, and then cluster similar pictures into one group by comparing the similarity of the global fe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62
Inventor 文林福
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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