Ship target combined detection method based on satellite AIS and infrared camera

Abstract

The invention discloses a ship target combined detection method based on a satellite AIS and an infrared camera, and the method comprises the steps: starting a satellite AIS load, receiving an AIS signal of a ship target, analyzing the AIS information on a satellite in real time, and screening out a key ship target according to an AIS key target library stored on the satellite; according to the infrared camera strict imaging model, determining the observation time and area of the key ship target and the observation angle of the infrared camera, and strating the infrared camera to perform imaging and download an image; preprocessing the downloaded infrared image, and performing ship target detection and feature extraction according to the preprocessed infrared image; carrying out space-timematching, target association and data fusion on satellite AIS and infrared image detection results. According to the ship target combined detection method based on the satellite AIS and the infraredcamera, target association is carried out on the satellite AIS data and the detection result of the infrared image, a fusion result is output, effective discovery of a non-cooperative ship target is achieved, and meanwhile whether AIS information is correct or not is verified.

Description

technical field [0001] The invention relates to the technical field of marine surveillance, in particular to a method for joint detection of ship targets based on satellite AIS and infrared cameras. Background technique [0002] The Automatic Identification System (AIS), designed to automatically locate and track ships, has been widely used in ocean surveillance. AIS transceivers are installed on international voyage ships and all passenger ships with a gross tonnage greater than 300 tons. The message report mainly includes the ship's unique identifier (MMSI), latitude and longitude, speed, direction, size and other information. Compared with shore-based AIS surveillance platforms, satellite AIS has the advantages of long range and wide coverage, and is one of the important development directions in the field of satellite applications in various countries. At the same time, the satellite AIS technology system is relatively mature, and the production cost of AIS payload is l...

AI Technical Summary

Problems solved by technology

However, AIS cannot detect non-cooperative ship targets. For various reasons, the operator can also turn off the AIS equipment on the ship, or even tamper with the GPS information in AIS, thereby interfering or disconnecting the external tracking of the ship's position

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