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Multi-feature fusion and diffusion process reordering based image retrieval method

A multi-feature fusion and diffusion process technology, applied in the field of image retrieval based on multi-feature fusion and diffusion process reordering, can solve the problem of low accuracy

Active Publication Date: 2018-09-14
YUNNAN NORMAL UNIV
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Problems solved by technology

[0005] The invention provides an image retrieval method based on multi-feature fusion and diffusion process reordering, which is used to solve the problem of low accuracy of traditional image retrieval methods in CBIR, and realize efficient retrieval in large-scale natural image retrieval Target

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  • Multi-feature fusion and diffusion process reordering based image retrieval method
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  • Multi-feature fusion and diffusion process reordering based image retrieval method

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Embodiment 1

[0054] Embodiment 1: as figure 1 As shown, an image retrieval method based on multi-feature fusion and diffusion process reordering, this embodiment takes an image database composed of N (1000) images with a size of m×n (192×168) as an example, each The images are used as query images respectively, and the retrieval is completed by obtaining the similarity between each query image and other images in the database. The specific process includes: extracting the features of all images (Step1) and performing normalization and fusion (Step2), calculating the distance matrix between image features (you can get the similarity between each query image and other images in the database, the closer the distance The smaller the image, the more similar the image), and then introduce the diffusion process to optimize the distance matrix (Step3), and finally reorder it and complete the retrieval (Step4).

[0055] In the retrieval process, the present invention proposes an image feature extr...

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Abstract

The invention discloses a multi-feature fusion and diffusion process reordering based image retrieval method which comprises the following steps of Step 1, image feature extraction; Step 2, performingnormalization and fusion on the image feature extracted in the Step 1; Step 3, performing diffusion process based feature distance optimization on the image fusion features extracted in the Step 2; and Step 4, performing reordering on the features optimized in the Step 3, and performing retrieval according to a reordering result. The method provided by the invention is liable in extraction of thefusion features and relatively low in complexity, does not need the training processes of image segmentation and image classification in the whole retrieval process, can effectively solve the problemof low retrieval accuracy rate of a traditional retrieval method based on low-level visual features at present, and better meets the actual demands of a user for content based image retrieval.

Description

technical field [0001] The invention relates to an image retrieval method based on multi-feature fusion and diffusion process reordering, and belongs to the related fields of computer vision, image processing, image understanding and the like. Background technique [0002] With the development of computer technology, more and more researchers pay attention to the related fields of computer vision. In recent years, image processing technology has been successfully applied in various industries, and content-based image retrieval (Content-based image retrieval, CBIR) is one of the main typical applications. CBIR stands for "Searching Images by Image". Different from the traditional search based on text keywords, CBIR focuses on the visual content of the image itself. The two key links of CBIR are image feature extraction and image similarity matching. [0003] Image features can be described from different visual perspectives such as color, texture, and shape. Based on this, ...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06K9/46G06K9/62
CPCG06V10/44G06V10/56G06V10/467G06V10/464G06F18/23213G06F18/22
Inventor 周菊香甘健侯王俊
Owner YUNNAN NORMAL UNIV
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