Marine target and electronic chart superposition method and system in on-board infrared video image

Abstract

The invention discloses a marine target and electronic chart superposition method and a marine target and electronic chart superposition system in an on-board infrared video image. The method comprises the following steps: 1, acquiring and reading the on-board infrared video image; 2, segmenting a marine target in the on-board infrared video image, and positioning the marine target to acquire the position of the marine target relative to the ship; 3, calculating the corresponding geographical coordinates of the marine target according to the ship position of the ship, the real-time course of the ship, the orientation of an infrared thermal imager and the result of the step 2; 4, correcting the target position which corresponds to the marine target by utilizing corresponding AIS data; and 5, superposing the corrected marine target into an electronic chart so as to be displayed in a transparent mode. According to the method and system disclosed by the invention, the marine target and electronic chart in the on-board movable infrared video image are superposed and displayed by utilizing the infrared thermal imager, the detection and behavior identification capacities of seafaring personnel on the target in the seafaring sea area are enhanced, and the ship navigation safety is effectively improved.

Description

Technical field [0001] The invention relates to multiple fields such as ship navigation, maritime target detection and navigation instrument integration, and more particularly to a method and system for superimposing a maritime target and an electronic chart in a ship-borne infrared video image. Background technique [0002] With the continuous development of navigation technology, more and more navigation instruments are used in the field of ship navigation. While the increasingly mature navigational instruments provide rich navigation information for the mariners, their frequent operation and navigation information processing also increase their workload. Therefore, the comprehensive processing of information from a variety of navigational instruments to provide mariners with an integrated information environment so that they can quickly make ship handling decisions and improve the safety of navigation has become a topic of general concern in the maritime industry today. . At...

AI Technical Summary

Problems solved by technology

Common target detection instruments on board are AIS and radar. The former can accurately obtain information such as the position, course, and speed of the target, but the prerequisite is that the target is also equipped with AIS; the latter can obtain the distance and distance of the target relative to the ship. azimuth, but the ability to detect weak or non-metallic targets is poor, especially in harsh sea conditions, target echoes are easily submerged in sea clutter, and the detected targets are only presented in the form of "bright spots". Unable to get target details

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