Sea ice extraction method and device based on superpixel segmentation, and equipment

A superpixel segmentation and superpixel technology, applied in image analysis, image enhancement, image data processing and other directions, can solve the problem of multiple recognition errors in areas with large changes in wind speed, improve accuracy, avoid scattered classification results, guarantee Integrity effect

Pending Publication Date: 2021-01-12
国交空间信息技术(北京)有限公司
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Problems solved by technology

The sea ice extraction method based on texture features and SVM classification method using SAR images also requires a large amount of training sample data, and there are many recognition errors in areas with large wind speed changes

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  • Sea ice extraction method and device based on superpixel segmentation, and equipment
  • Sea ice extraction method and device based on superpixel segmentation, and equipment
  • Sea ice extraction method and device based on superpixel segmentation, and equipment

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Embodiment Construction

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0052]In addition, the term "and / or" in this article is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and / or B, which may mean: A exists alone, A and B exist at the same time, There are three cases of B alone. In addition, the character " / " in this article general...

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Abstract

The embodiment of the invention provides a Sea ice extraction method and device based on superpixel segmentation, and equipment. The method comprises the following steps: carrying out superpixel segmentation on a non-land part of an original remote sensing image by adopting an SLIC superpixel segmentation algorithm; according to the super-pixel segmentation result, based on the gray level co-occurrence matrix, calculating the mean value of the contrast and entropy of each super-pixel, and generating a feature image based on the super-pixels; and calculating a contrast threshold and an entropythreshold by adopting an Otsu threshold detection method, classifying the seawater area and the sea ice area, and extracting the sea ice area. In this way, automatic extraction of the sea ice can be achieved, a reference basis is provided for marine activity extraction in the industries of marine shipping, marine oil exploitation and the like, the sea ice serves as an important participant of global climate change, and sea ice extraction further provides technical support for climate change research.

Description

technical field [0001] Embodiments of the present invention generally relate to the application field of remote sensing images, and more specifically, relate to a sea ice extraction method, device and equipment based on superpixel segmentation. Background technique [0002] my country's icy sea areas are mainly located in the Bohai Sea, and most of them are concentrated in the Liaodong Bay in the north. Every winter, human marine activities such as the development of marine resources, port and coastal engineering design, and marine transportation are affected to varying degrees due to the formation, movement, and changes of sea ice. Structures are extremely dangerous. With the development of remote sensing technology, the monitoring of sea ice using multispectral images and radar images has become an important research content. In the sea ice extraction based on remote sensing images, the currently more commonly used methods are sea ice extraction based on the brightness t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/34G06K9/62G06T7/11G06T7/136G06T7/40G06T7/90
CPCG06T7/11G06T7/136G06T7/40G06T7/90G06T2207/30181G06V20/13G06V10/267G06F18/24
Inventor 王芳郑慧关峰曾杰孙晓月郭榕刚
Owner 国交空间信息技术(北京)有限公司
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