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Method and device for determining image similarity

A technology of image similarity and similarity, which is applied in the field of image processing and can solve the problem of not considering the distribution of lesion areas.

Active Publication Date: 2022-02-11
FUJITSU LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method does not consider the lesion area distribution, specifically, the distance information from the lesion area to the body center

Method used

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  • Method and device for determining image similarity
  • Method and device for determining image similarity
  • Method and device for determining image similarity

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Embodiment Construction

[0020] Embodiments of the present invention will be described below with reference to the drawings. Elements and features described in one drawing or one embodiment of the present invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that representation and description of components and processes that are not related to the present invention and known to those of ordinary skill in the art are omitted from the drawings and descriptions for the purpose of clarity.

[0021] The present invention proposes a method of dividing the image into regions based on the position relative to the reference point, and then determining the image similarity based on the divided region information and the distribution of feature points, which provides a more reasonable description of the similarity. The method and device for determining image similarity according to the present invention will be described below mainly by takin...

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Abstract

The present invention relates to a method and device for determining image similarity. The method for determining image similarity includes: for a target image, dividing the target image into a plurality of regions based on the position relative to a reference point therein, and in the same manner Dividing the reference image into a plurality of regions; determining the feature points in the target image and the features in the reference image based on the feature points in the target image and the feature points in the reference image and the divided regions The similarity of the distribution of points. The present invention proposes a method of dividing the image into regions based on the position relative to the reference point, and then determining the image similarity based on the divided region information and the distribution of feature points, which provides a more reasonable description of the similarity.

Description

technical field [0001] The present invention relates to the field of image processing, in particular to a method and device for determining image similarity. Background technique [0002] In the field of medical applications, image retrieval can be used to assist doctors in diagnosis by retrieving similar images in the database. The key step of image retrieval is to calculate the similarity between the retrieved image (target image) and the reference image in the database, so as to perform similar image retrieval according to the ranking results of the similarity. In the case of diffuse lung disease, for example, computed tomography images are often used for diagnosis. For this implementation example, the most commonly used similarity measurement method is based on the size of the overlapping portion of the lesion area in the search image and the reference image as the basis for the similarity measurement. This method does not consider the lesion area distribution, specifi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/11G06T7/66G06T7/187G06T7/136G06T7/00G06F16/583G06V10/75G06V10/74G06V10/50
CPCG06F16/583G06T2207/30096G06T2207/30061G06T2207/10081G06T7/0014G06T7/11G06T7/136G06T2207/10072G06V10/758G06V10/759G06T7/0016G06T2207/30012G06T2207/20021G06T7/13G06F18/22
Inventor 王梦蛟刘汝杰
Owner FUJITSU LTD