A method and device for image retrieval

Abstract

The embodiment of the present invention discloses a picture retrieval method and device. The method includes: receiving a query picture sent by a user, and according to the object area M containing the search object in the query picture, 1 , obtain the picture from the picture database, and use the obtained picture as the initial judgment picture, judge whether the picture retrieval accuracy of the initial judgment picture is greater than the first preset picture retrieval precision, if yes, generate the picture retrieval result according to the initial judgment picture , if not, then re-obtain the object area M of the query image 2 , and get the object area M 2 The uniqueness of the subregion, according to the object region M 2 and the uniqueness sub-region, select a picture from the picture database, update the initial judgment picture to the selected picture, and continue to execute the step of judging whether the picture retrieval accuracy of the initial judgment picture is greater than the first preset picture retrieval precision. By applying the technical solutions provided by the embodiments of the present invention, pictures containing the same retrieval object can be obtained.

Description

technical field [0001] The invention relates to the field of pattern recognition, in particular to a method and device for image retrieval. Background technique [0002] At present, in image retrieval, the user generally provides a picture to the search server, and the search server extracts the overall features of the picture, compares them in the picture database according to the extracted overall features, and queries the picture that the user needs. However, in practical applications, the picture required by the user is a picture containing a search object, and the search object only occupies a part of the picture provided by the user, such as a person or a car. Therefore, the region that does not contain the search object in the image provided by the user will interfere with image retrieval. For example, the user wants to obtain pictures of the same search object in different scenes (such as pictures of the same car appearing at different intersections or the same perso...

AI Technical Summary

Problems solved by technology

Therefore, the region that does not contain the search object in the image provided by the user will interfere with image retrieval. For example, the user wants to obtain pictures of the same search object in different scenes (such as pictures of the same car appearing at different intersections or the same person). pictures appearing in different areas of the shopping mall), after obtaining the picture provided by the user, the retrieval server extracts the overall features of the picture, so that the pictures queried by comparison in the picture database are all pictures similar to the pictures provided by the user (such as pictures of the same car appearing at the same intersection or pictures of the same person appearing in the same area of ​​the mall), which cannot meet the needs of users to find pictures containing the same retrieval object

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