A method and apparatus for identifying an ocean front
A recognition method and marine technology, applied in the field of marine image recognition, can solve problems such as inability to identify fine-grained ocean fronts
Active Publication Date: 2018-12-25
OCEAN UNIV OF CHINA
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[0016] The main purpose of the present invention is to provide a method and device for identifying ocean fronts to solve the problem that the ocean fronts in the sea surface temperature map cannot be fine-grained.
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[0056] The present invention also provides a specific implementation manner, and the technical solutions of the embodiments of the present invention will be described below in conjunction with the specific implementation manner.
[0057] In recent years, temperature fronts have become critical in limiting the exchange of energy and moisture between the ocean and atmosphere. The development of remote sensing technology provides conditions for studying such ocean temperature fronts. From the perspective of image processing, the front refers to the area where the gradient has obvious differences in the remote sensing image. The technical solution of the invention aims at automatically detecting and locating these areas, that is, the position of the ocean front in the sea surface temperature map, and providing reference for fishery production, oceanographers studying the ocean, and military activities.
[0058] Although the traditional detection technology is also detection based...
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The invention discloses a method and a device for identifying an ocean front. The method comprises the following steps: inputting the sea surface temperature map to be identified into a multi-scale sampling model for sampling at different scales to obtain a plurality of blocks with different scales; a plurality of blocks with different scales being input into a pre-trained depth model for model recognition, and the recognition result being obtained; marking a plurality of blocks with different scales according to the recognition result; inputting a plurality of blocks with different scales into a binary model for stitching, and obtaining a binary map with the same size as the sea surface temperature map to be recognized; the binary map with the same size as the sea surface temperature mapto be recognized being inputted into the fine-grained positioning and delimitation model for fine-grained recognition, and the fine-grained recognition results being obtained, wherein, the fine-grained recognition results include the position of the ocean front and the variation trend of the ocean front strength. Through the invention, the effect of accurately identifying the position of the oceanfront and the variation trend of the ocean front strength in the sea surface temperature map is achieved.
Description
technical field [0001] The present invention relates to the field of ocean image recognition, in particular to a method and device for identifying ocean fronts. Background technique [0002] The generation of ocean fronts is a typical mesoscale ocean phenomenon, which is of great value to marine fishery production and ocean research. Therefore, the study of ocean fronts has become an important topic for oceanographers. [0003] The generation of oceanic fronts is due to the fronts formed at the junction of two water masses with different properties (such as: temperature, salinity, density, etc.). In most studies, researchers tend to study ocean fronts due to differences in temperature. Where the front is formed, it is often rich in nutrients, and it is also a place where fish schools gather, which provides an important reference value for marine fishery production. At the same time, relevant data show that ocean climate change is also a condition for the generation of oce...
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Login to View More IPC IPC(8): G06K9/62
CPCG06F18/24G06F18/214
Inventor 孙鑫王常刚董军宇
Owner OCEAN UNIV OF CHINA