Real-time sea wave segmentation method and device based on self-adaptive threshold frame difference method

A technology of adaptive threshold and frame difference method, applied in image analysis, image data processing, instruments, etc., can solve problems such as time-consuming, segmentation accuracy needs to be improved, etc.

Inactive Publication Date: 2020-04-21
深圳市若雅方舟科技有限公司
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Problems solved by technology

[0017] However, the above methods are time-consuming,

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  • Real-time sea wave segmentation method and device based on self-adaptive threshold frame difference method
  • Real-time sea wave segmentation method and device based on self-adaptive threshold frame difference method
  • Real-time sea wave segmentation method and device based on self-adaptive threshold frame difference method

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[0060] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0061] The embodiment of the present invention provides a real-time ocean wave segmentation method based on the adaptive threshold frame difference method, and sets the adaptive threshold to segment moving ocean waves. On the basis of the traditional frame difference method, threshold processing is performed on the region of interest obtained by the frame difference method. The principle of the frame difference method is as follows:...

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Abstract

The invention discloses a real-time sea wave segmentation method and device based on an adaptive threshold frame difference method. The method comprises the following steps: acquiring a moving sea wave video sequence image of a target sea area; carrying out gray scale conversion on the moving sea wave video sequence image; carrying out differential operation on two adjacent frames of the obtainedgrayscale image; generating an adaptive threshold value according to the differentiated image; and according to the adaptive threshold, carrying out threshold operation to output a final sea wave segmentation image. The method is suitable for the work of binocular vision-based sea wave height measurement and three-dimensional reconstruction. According to the method, the moving sea waves can be rapidly segmented, the consumed time is short, the effect is obvious, the method can be applied to different scenes through application of the self-adaptive threshold value, the work of resetting the threshold value under different videos is reduced, and the method is simple, easy to program and implement, low in algorithm time consumption and real-time.

Description

technical field [0001] The invention relates to the technical field of digital image processing, in particular to a real-time sea wave segmentation method and device based on an adaptive threshold frame difference method. Background technique [0002] As a very harmful natural disaster, tsunami has disturbed people deeply since ancient times, and the related research has never stopped. The huge casualties and property losses caused by the tsunami brought the issue of tsunami monitoring and early warning to the forefront. Since the propagation speed of seismic waves is much greater than that of tsunamis, tsunami warnings are usually based on earthquake information in the world. The disadvantage of this method is that it is affected by factors such as seabed topography and earthquake intensity, even if a seabed earthquake occurs, it may not necessarily generate a tsunami. The evacuation of personnel and disaster prevention preparations caused by tsunami false alarms will als...

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Application Information

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IPC IPC(8): G06T7/10G06T7/136
CPCG06T2207/10016G06T7/10G06T7/136
Inventor 王顺礼梅新奎刘文智叶秀芬李海波于立明周翰文刘汉强修林冉韩锦亮
Owner 深圳市若雅方舟科技有限公司
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