Connected domain detection method for sea-sky lines in infrared images under sea-sky backgrounds

Abstract

The invention discloses a connected domain detection method for sea-sky lines in infrared images under sea-sky backgrounds, belongs to the field of processing and application of infrared images under sea-sky environments, and aims at solving the problems that the detection of sea-sky lines is interfered to influence the profiles of ships and warships on the seal-sky lines as the backgrounds contain mountain chains and bridges when linear extraction is adopted in the prior art. The method disclosed by the invention comprises the following steps of: inputting a to-be-detected sea-sky line infrared image; graying the sea-sky line infrared image; removing strong water wave interferences and complicated background interferences in the grayed sea-sky infrared image; carrying out gradient operation; utilizing maximum value filtering to remove noises which undergo the gradient operation; carrying out gradient operation on the sea-sky infrared image of which the noises have been removed; carrying out binary processing on the obtained sea-sky line infrared image; and extracting a position of a sea-sky line in the sea-sky line infrared image subjected to the binary processing by utilizing a line segment table-based connected domain detection method. The method disclosed by the invention is used for the extraction of sea-sky lines.

Description

technical field [0001] The invention discloses a method for detecting sea-antenna connected domains of infrared images under the background of sea and sky, which is used for extracting sea-antennas, belongs to the field of infrared image processing and application in sea-sky environments, and specifically relates to the detection of sea-antennas. Background technique [0002] Due to its important role in unmanned detection and anti-ship guidance, infrared ship target recognition technology has been listed as a key military research topic by many countries in recent years. However, due to the interference of strong water patterns on the sea surface, background obstacles, detector noise and other factors, the positioning and identification of ship targets has become a very challenging problem. The detection of sea antenna can effectively suppress the noise interference in the complex sea and air background and reduce the search range of ship targets, so it has become a key lin...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a sea-antenna connected region detection method in an infrared image under the sea-air background in view of the above-mentioned deficiencies, and solves the problems in the prior art that the straight line extraction affects the outline of the ship on the sea antenna and the complex background interferes with the sea-antenna extraction. Influence, the traditional binarization process needs to determine the influence of the threshold on the extraction of sea antennae, the impact of randomness and human factors on the extraction of sea antennae

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