A Ship Multi-target Detection Method Based on Rotation Region Extraction

Abstract

The invention discloses a ship multi-target detection method based on rotation area extraction, comprising: collecting remote sensing images containing ship targets, and cutting the remote sensing images to a set size; Annotate the rotated rectangle, and use the remote sensing image marked with the rotated rectangle as the training set and test set; input the training set into the ship multi-target detection model for training; input the remote sensing image to be detected into the trained ship multi-target detection The detection is carried out in the model, and the preliminary detection results including the ship target pre-selection box and the corresponding confidence are obtained; the rotation intersection ratio of the pre-selection box with the highest confidence level and other pre-selection boxes is calculated, and the rotation intersection ratio of the pre-selection box is greater than the set threshold. The box is deleted to get the final detection result. The invention accurately outputs the position, length, width and axial information of the ship target by predicting the circumscribed rectangle of the minimum area of ​​the ship target, realizes multi-target detection, and significantly improves the detection performance.

Description

technical field [0001] The invention belongs to the technical field of remote sensing image processing, and more specifically relates to a ship multi-target detection method based on rotation area extraction. Background technique [0002] In recent years, satellite remote sensing technology has developed rapidly, and batches of remote sensing satellites with high resolution and low revisit cycle continue to emerge. With the gradual improvement of space-based observation systems, remote sensing technology has been widely used in all aspects of our daily life , has a major impact on civilian and military fields such as sea surface temperature analysis, fishery assistance, environmental and agricultural monitoring, and situational awareness on the sea surface battlefield. Remote sensing technology has also received more and more attention from various countries in the world, and even raised it to a strategic height , as the strategic goal of the country's long-term stable devel...

AI Technical Summary

Problems solved by technology

However, the existing rotating region extraction algorithms have a variety of definitions for rotating objects, all of which have disadvantages such as complex definitions, difficult model construction, and slow prediction speed.

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