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Light spot extraction method

An extraction method and light spot technology, applied in the field of image processing, can solve the problem of low light spot accuracy, and achieve the effects of improving uniformity, avoiding the interference of dead pixels and environmental noise, and improving accuracy.

Pending Publication Date: 2022-04-05
北京元客视界科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] This application provides a spot extraction method to solve the technical problem of low accuracy of spot extraction

Method used

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Embodiment Construction

[0044] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0045] see figure 1 , the spot extraction method provided in the embodiment of the present application includes the following steps:

[0046] Step S110: Modify the preset global threshold and edge threshold of the image to obtain the global threshold and edge threshold corresponding to the image target point.

[0047] In the embodiment of t...

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Abstract

The embodiment of the invention provides a light spot extraction method, and the method comprises the steps: correcting a preset global threshold value and an edge threshold value of an image, and obtaining a global threshold value and an edge threshold value corresponding to an image target point, and judging the type of the currently processed image target point according to the size relationship between the gray value of the currently processed image target point and the global threshold and the edge threshold corresponding to the currently processed image target point, and the assignment result of the residual image target points, and outputting a final binarization result. According to the final binaryzation result of all image target points, the light spot area in the image is separated from the non-light-spot area in the image, remote extraction of light spots and edge transition points is achieved, interference of dead pixels and noise is avoided, and the accuracy of light spot extraction is improved.

Description

technical field [0001] The present application relates to the technical field of image processing, and in particular to a spot extraction method. Background technique [0002] Spot extraction is a common application scenario in the field of motion capture and national defense. When the background brightness of the image is lower than the brightness of the spot area, and the difference between the overall brightness of the background of the image and the brightness of the spot area is large, the spot extraction is performed. Binarization is an image segmentation method commonly used in image processing for the separation of background and target. [0003] In the prior art, a global threshold is usually used to binarize the image to separate the background and the spot area in the image. The background of the image after binarization is represented by 0, and the spot area of ​​the image is represented by 1. Under long-distance conditions, the brightness of the light spot in t...

Claims

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Application Information

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IPC IPC(8): G06T7/136G06T7/11G06T7/12
Inventor 郭慧戚涛张见姚毅杨艺
Owner 北京元客视界科技有限公司