A method for detecting the connected domain of infrared image sea and antenna in the background of sea and sky
An infrared image and detection method technology, applied in image enhancement, image analysis, image data processing, etc., can solve the problems of ship outline influence, interference sea antenna extraction, etc., and achieve the goal of avoiding repeated scanning, reducing the number of scanning times, and eliminating noise Effect
Active Publication Date: 2018-08-17
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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[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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[0053] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0054] A method for detecting sea-antenna connected domains of infrared images under the background of sea and air, comprising the following steps:
[0055] (1) input the sea antenna infrared image to be detected;
[0056] (2) Carry out grayscale processing to the sea antenna infrared image;
[0057] (3) Remove the strong watermark interference and complex background interference in the gray-scaled Haitian infrared image; the specific process is:
[0058] (31) read in the sea sky infrared image after grayscale processing;
[0059] (32) Strong water ripple interference will cause the gray intensity of the wave in the infrared image to be close to the gray value of the sea antenna pixel, making it difficult to extract the sea antenna. The pixel gray value of the water surface area due to strong water ripple interference is generally near the mean value....
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The invention discloses a sea-antenna connected domain detection method of an infrared image under the background of sea and sky, which belongs to the field of infrared image processing and application in the sea and sky environment, and solves the problem that the background contains mountains and bridges when the straight line is extracted in the prior art. The detection of the sea antenna causes interference and affects the outline of the ship on the sea antenna. The invention includes the following steps: inputting the infrared image of the sea antenna to be detected; performing grayscale processing on the infrared image of the sea antenna; removing strong water ripple interference and complex background interference in the infrared image of the sea antenna after the grayscale processing; Gradient operation; use the maximum value filter to remove the noise after the gradient operation; perform gradient operation on the infrared image of the sea antenna after removing the noise; perform binarization on the obtained infrared image of the sea antenna; use the connected domain detection method based on the line segment table to extract The position of the sea antenna in the infrared image of the sea antenna obtained after binarization. The invention is used for extracting sea antennae.
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...
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IPC IPC(8): G06T7/13
CPCG06T2207/30181
Inventor 汪劲希彭真明王璞范竞丹燕肇一黄少寅何艳敏
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA