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An image matching method and device

A matching method and image technology, applied in the field of image matching, can solve NP-hard problems and achieve the effects of improving accuracy, ensuring non-redundancy, and ensuring correct matching

Active Publication Date: 2019-02-26
PEKING UNIV SHENZHEN GRADUATE SCHOOL
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, since it is a secondary distribution problem in mathematics, that is, NP-hard, there are many methods to try it

Method used

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  • An image matching method and device
  • An image matching method and device
  • An image matching method and device

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Embodiment Construction

[0013] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0014] Embodiments of the present invention relate to methods and devices for image matching. For example, in some embodiments, the image matching method and device can be used to identify from multiple frames of images an object that is the same as or similar to another frame of image or a specific object in the other frame of image. Herein, the image (for example, the aforementioned "another frame image") as the target of identification is called "template image", and the aforementioned specific target is called "target of interest", and it will be necessary to identify An image or an image that is identical or similar to an object of interest is called an "object image".

[0015] In the embodiments of the present invention, generally, the template image can be used as a template, and the features representing the template imag...

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Abstract

The invention discloses an image matching method and device. The method includes the steps of: obtaining a template image and target images; obtaining a group of template characteristics according to the template image; extracting a group of target characteristics according to the target images; and according to the template characteristics and target characteristics, calculating image similarity of the template image to each frame of target image, and determining the target image with the largest image similarity as the image matched with the template image. In the image matching method and device of the abovementioned embodiment, through similarity between the template characteristics and the target characteristics, the image similarity between the template image and each target image is calculated to perform image matching, and thus non-redundancy of characteristics in an image matching process can be guaranteed, thereby ensuring correct matching of images, and improving the degree of accuracy of image matching.

Description

technical field [0001] The invention relates to the technical field of image matching, in particular to an image matching method and device. Background technique [0002] In computer vision research, image matching is a very basic content. Because graphs are very expressive and can preserve important information in images, in recent years, graph matching as a method of image matching has been widely used in fields such as social networks, data analysis, complex object recognition, and video analysis. [0003] Image matching that can deal with non-rigid objects and deformations has wider versatility. However, since it is a quadratic allocation problem in mathematics, that is, NP-hard, there are many methods to try it. However, how to ensure the non-redundancy of feature points and edges in the process of graph matching and how to match correctly need to be further resolved. Contents of the invention [0004] The present application provides an image matching method and d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/33
CPCG06T2207/30248
Inventor 王文敏张若楠王荣刚李革董胜富王振宇李英高文
Owner PEKING UNIV SHENZHEN GRADUATE SCHOOL
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