Image retrieval method and device, electronic equipment and storage medium
An image retrieval and image technology, applied in the computer field, can solve the problems of inaccurate retrieval results, recall, insufficient images, etc.
Active Publication Date: 2021-12-17
TENCENT TECH (SHENZHEN) CO LTD
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[0004] However, using the above image retrieval method, only images similar to the basic feature embedding can be recalled, and some images similar to other features of the query image cannot be recalled through the basic feature embedding, which leads to insufficient recalled images, making the retrieval results inaccurate
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[0088] In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0089] In order to facilitate those skilled in the art to better understand the technical solution of the present application, some concepts involved in the present application are introduced below.
[0090] embedding: It is the feature extracted from the original data, that is, the low-dimensional vector after mapping through the neural network. Image embedding is a process of mapping graph data (usually a high-dimensional dense matrix) into a low-density vector. Gra...
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The invention provides an image retrieval method and device, electronic equipment and a storage medium, relates to the technical field of computers, and can be applied to various scenes such as cloud technology, artificial intelligence, intelligent traffic and auxiliary driving. The method comprises the steps of recalling a first image set with basic features similar to those of a query image based on target basic features of the query image; selecting a plurality of candidate images having similar semantic features with the query image from the first image set based on the target semantic features of the query image; recalling a second image set having similar semantic features with the corresponding candidate images based on respective semantic features of the plurality of candidate images; and based on the recalled multiple second image sets and the first image set, determining a retrieved target image set. According to the method, a two-stage recall mode is adopted, the retrieval recall rate can be increased, and then the accuracy of the retrieval result is improved.
Description
technical field [0001] The present application relates to the field of computer technology, and in particular to an image retrieval method, device, electronic equipment and storage medium. Background technique [0002] With the rapid development of deep learning technology, image retrieval technology based on deep learning technology has been widely used. At present, for the image library to be retrieved, the image feature extraction model based on metric learning training in deep learning is used to extract the basic feature embeddings of each image in the image library, and represent the corresponding image through the basic feature embedding. [0003] When it is necessary to retrieve similar images of the query image from the image database, the image feature extraction model is used to extract the basic feature embedding of the query image, and then the basic feature embedding of the query image is calculated with the basic feature embedding of each image in the image da...
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CPCG06F16/583
Inventor 郭卉
Owner TENCENT TECH (SHENZHEN) CO LTD