Image feature point matching method and device
A technology of image feature points and matching methods, which is applied in the field of image processing, can solve problems such as abnormal matching results and inaccurate matching results, and achieve the effects of taking into account real-time performance, reducing the amount of calculation, and improving accuracy
Inactive Publication Date: 2021-12-28
WUHAN YIXUN ELECTRONICS INFORMATION TECH
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[0004] However, since the optical flow method will be affected by the environment, such as illumination and noise, there will be more abnormalities in the matching results, resulting in inaccurate matching results
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[0043] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of this application Examples, not all examples. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the scope of protection of this application.
[0044] Embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.
[0045] see figure 1 , is one of the flow diagrams of the method for matching image feature points provided by the embodiment of the present invention, and the method is applied in a server to match feature points between two portraits. Such as figure 1 As shown, a method for matching image feature ...
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The invention provides an image feature point matching method and device. The method comprises the following steps: acquiring a second feature point corresponding to a first feature point of a reference image from a to-be-registered image according to an optical flow method; obtaining a first descriptor of the first feature point according to each first pixel point in a first preset range of the first feature point, and obtaining a second descriptor of the second feature point according to each second pixel point in a second preset range of the second feature point; performing similarity matching on the first descriptor and the second descriptor, and determining a matching result of the first feature point and the second feature point, wherein the first preset range is the same as the second preset range. According to the image feature point matching method provided by the embodiment of the invention, the real-time performance and the accuracy of feature point matching can be considered at the same time.
Description
technical field [0001] The present application relates to the technical field of image processing, in particular to a method and device for matching image feature points. Background technique [0002] At present, in computer vision applications, such as visual navigation and positioning, it is usually necessary to match feature points of different images. [0003] In related technologies, feature point matching between two images can be realized based on an optical flow method. That is, based on the principle of the same feature point and its neighborhood gray-scale invariance assumption, construct a gray-scale error function with the offset of the window centered on the feature point as an independent variable, and estimate the offset to obtain the point in the next frame image The positions that may appear in , so as to achieve a match. [0004] However, since the optical flow method is affected by the environment, such as illumination and noise, there will be many abnor...
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Login to View More IPC IPC(8): G06K9/62
CPCG06F18/22
Inventor 付诚陈志涛夏华佳徐天澈郭凯杨康史华廪
Owner WUHAN YIXUN ELECTRONICS INFORMATION TECH