Image retrieval system, method and device

Abstract

The invention discloses an image retrieval database generating method, an image retrieval method, a corresponding image retrieval database generator, an image retrieval device and an image retrieval system. When a database is generated, sample image feature description information is classified and dimensionally reduced, and a label datum is formed for each feature point. Sample image content data and label data are stored in the database in a classified mode. During image retrieval, a target image to be retrieved is processed through a similar method, and a plurality of labels are formed for each feature point. During matching, traversal matching is carried out on the labels of the target image and all labels in a corresponding classified index in the database, and a matching value of the target image and sample images in the database is calculated. According to the image retrieval database generating method, the image retrieval method, the corresponding image retrieval database generator, the image retrieval device and the image retrieval system, the description content is compressed, and data transmission efficiency can be effectively improved; in addition, due to the fact that the sample image content data and the label data are stored in the classified mode, the image retrieval waiting time can be effectively shortened, and real-time retrieval can be possibly achieved in the large database.

Description

technical field [0001] The present invention relates to the technical field of content-based image retrieval, in particular to an image retrieval system and related methods and devices. Background technique [0002] In the field of computer vision, features in an image can be characterized by identifying and describing one or more key points. The key points can be described by various description contents, for example, the description content of the key points can be expressed by the visual features of the image content (shape, color, texture, rotation and other image characteristics). In image recognition, the features in the target image are matched with the features in the sample image database. When the calculation speed of the key point detection of the object and the size of the image feature database are fixed, the time consumption mainly depends on the transmission and storage of image features. , so the construction complexity and dimensionality of the key point de...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an image retrieval system and related methods and devices to solve the problem of slow speed in image recognition in large databases

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