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A kind of image retrieval method and server

An image retrieval and server technology, applied in the communication field, can solve problems such as inability to quickly retrieve images

Active Publication Date: 2020-07-28
XIAN UNIVIEW INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides an image retrieval method to solve the problem in the prior art that images cannot be quickly retrieved while ensuring accuracy. The method is applied to an image retrieval server and includes the following steps:

Method used

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  • A kind of image retrieval method and server
  • A kind of image retrieval method and server
  • A kind of image retrieval method and server

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Embodiment Construction

[0055] As mentioned in the background art, the acceleration schemes proposed for image retrieval in the prior art have the defects of decreased accuracy or high operation process. In view of this, this application proposes an image retrieval method, which uses clustering technology to quickly screen similar image subsets, reduce the number of feature comparisons, and effectively improve retrieval efficiency.

[0056] Such as figure 1 As shown, it is a schematic flow chart of an image retrieval method proposed in this application, including the following steps:

[0057]S101. Generate a first number of clustering layers according to the original features of all images in the image library, each of the clustering layers includes a second number of clusters, and the clustering layers are ranked before a threshold according to the ranking of the original features Orthogonal features corresponding to the eigenvalues ​​of are decomposed and generated sequentially, and the eigenvalue...

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Abstract

The invention discloses an image retrieval method. Generate the first number of clustering layers in advance according to the original features of all images in the image library. When the image to be queried is received, the first number of sub-features are extracted according to the contrast features of the image to be queried, and the corresponding The clusters with close sub-feature distances are set as special clusters, and the candidate images are screened according to the special clusters and the corresponding clusters of each image in each clustering layer, and finally the original features of the candidate images are compared according to the comparative features of the image to be queried. A linear search is performed to identify images similar to the query image. Therefore, the linear search range of the original features can be greatly reduced while ensuring the retrieval accuracy, the time-consuming linear search is significantly reduced, and the retrieval efficiency is effectively improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an image retrieval method. The present invention also relates to a server. Background technique [0002] Content-based image retrieval is a technique for retrieving images based on their visual content, which mainly includes two processes of feature extraction and feature similarity matching. As the technology is becoming more and more mature, image retrieval technology has more and more applications in fields such as face comparison and vehicle search. [0003] With the collection and analysis of massive image data, the size of the image database is also becoming larger and larger, which puts forward higher and higher requirements for retrieval efficiency. In order to speed up image retrieval, in the prior art, the feature space is usually decomposed into the Cartesian product of multiple low-dimensional subspaces, and then each subspace is quantized separately, and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/583G06K9/62
CPCG06F16/583G06F18/23213
Inventor 胡来丰
Owner XIAN UNIVIEW INFORMATION TECH CO LTD
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