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Image similarity determining device and method and image feature obtaining device and method

A technology of image similarity and determination device, applied in the field of image processing, can solve the problem that the image matching accuracy needs to be improved, and achieve the effect of improving the accuracy

Inactive Publication Date: 2014-12-24
FUJITSU LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the accuracy of current image matching still needs to be improved

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  • Image similarity determining device and method and image feature obtaining device and method
  • Image similarity determining device and method and image feature obtaining device and method
  • Image similarity determining device and method and image feature obtaining device and method

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[0026] Exemplary embodiments of the present disclosure will be described below with reference to the accompanying drawings. In the interest of clarity and conciseness, not all features of an actual implementation are described in this specification. It should be understood, however, that in developing any such practical embodiment, many implementation-specific decisions must be made in order to achieve the developer's specific goals, such as meeting those constraints related to the system and business, and those Restrictions may vary from implementation to implementation. Moreover, it should also be understood that development work, while potentially complex and time-consuming, would at least be a routine undertaking for those skilled in the art having the benefit of this disclosure.

[0027] Here, it should be noted that in order to avoid obscuring the present disclosure due to unnecessary details, only the device structure and / or processing steps closely related to the solu...

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Abstract

The invention provides an image similarity determining device and method and an image feature obtaining device and method. The image similarity determining device comprises a preprocessing unit, a matched feature point set determining unit, a geometric similarity determining unit and an image similarity determining unit. The preprocessing unit is used for extracting feature points of all input image areas of an input image and feature points of all image areas, to be matched, of a data source image. The matched feature point set determining unit is used for determining one-to-one matched feature point pairs between the input image areas and the image areas to be matched. The geometric similarity determining unit is used for determining the geometric similarity between the input image areas and the corresponding image areas to be matched according to the distribution situation of the feature points of the input image areas and the corresponding image areas to be matched. The image similarity determining unit is used for determining the similarity between the input image and the data source image according to the geometric similarity between the input image areas and the corresponding image areas to be matched. The image matching precision can be improved.

Description

technical field [0001] The present disclosure relates to the field of image processing, and more particularly, to an apparatus and method for determining similarity between images and an apparatus and method for acquiring image features. Background technique [0002] In the field of image processing, image matching is very important for realizing image content-based retrieval applications, that is, how to determine the similarity between images. The current image matching can be mainly divided into grayscale-based image matching and feature-based image matching. The features processed by feature-based image matching usually include color features, texture features, and so on. However, the accuracy of current image matching still needs to be improved. Contents of the invention [0003] A brief summary of the present disclosure is given below in order to provide a basic understanding of some aspects of the present disclosure. It should be understood that this summary is n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/46G06V10/42
CPCG06V10/42G06V10/757
Inventor 曹琼刘汝杰
Owner FUJITSU LTD
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