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Method for sampling feature points, image matching method and image matching device

A feature point and corresponding feature technology, applied in the field of feature point sampling, image matching and image matching equipment, can solve the problem of feature point distribution linearity, aggregation and so on

Active Publication Date: 2019-04-19
HANWHA TECHWIN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Exemplary embodiments of the present inventive concept include a random sampling method that solves the problem that the distribution of feature points is linear during the random sampling process for image matching and an image matching method using the random sampling method. problems arising from or clustering in specific areas

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  • Method for sampling feature points, image matching method and image matching device
  • Method for sampling feature points, image matching method and image matching device
  • Method for sampling feature points, image matching method and image matching device

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Embodiment Construction

[0026] Reference will now be made in detail to the exemplary embodiments, which are illustrated in the drawings, wherein like numerals refer to like elements throughout. In this regard, the embodiments may have different forms and should not be construed as limited to the descriptions herein. Accordingly, the exemplary embodiments are merely described below, by referring to the figures, to explain aspects of the inventive concept.

[0027] Although terms such as 'first' and 'second' may be used to describe various elements, these elements are not limited by these terms. These terms can be used to classify a certain element from another element.

[0028] Terms used in the following embodiments are only used to describe specific embodiments, and are not intended to limit the present inventive concept. An expression in the singular includes an expression in the plural unless it is obvious that the expression in the singular and the expression in the plural are different in the ...

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Abstract

A method for sampling feature points, an image matching method and an image matching device are disclosed. A method for sampling feature points for image matching includes: dividing a first image into a plurality of regions corresponding to the number of feature points to be sampled; extracting sampling feature points from each region so that the sampling feature of a region The distance between the point and the sampled feature point of another area satisfies a predetermined condition; on the basis of the extracted sampled feature point and the corresponding sampled feature point of the second image to be matched with the first image, a homography matrix is ​​estimated.

Description

[0001] This application claims priority to Korean Patent Application No. 10-2014-0004711 filed with the Korean Intellectual Property Office on Jan. 14, 2014, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0002] Methods and apparatus consistent with the exemplary embodiments involve sampling feature points and image matching. Background technique [0003] In recent years, in order to improve the accuracy and reliability of algorithms for change detection, motion detection, and super-resolution image restoration in the fields of surveillance systems, medical imaging, etc., the use of two or more sensors to fuse complementary information has been studied. field has been researched. [0004] In the field of surveillance systems, the field of medical images, etc., in systems that generate one fused image by acquiring two or more images, image matching (calibration) needs to be performed. Contents of the invention [0005] Exempl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/30G06T5/50
CPCG06V10/757
Inventor 吴哉仑李准性朴宰佑
Owner HANWHA TECHWIN CO LTD