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Camouflaged target recognition method based on k-means clustering and polarization information extraction

A technology of k-means clustering and polarization information, which is applied in the field of camouflage target recognition, can solve the problem of lack of polarization information, and achieve the effect of complete polarization information, high contrast between target and background, and rich image detail information

Inactive Publication Date: 2019-04-16
NANJING UNIV OF SCI & TECH
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Problems solved by technology

[0009] The purpose of the present invention is to provide a camouflage target recognition method based on K-means clustering and polarization information extraction, which improves the problem of partial polarization information missing in the existing polarization image fusion process, and the polarization information of the fused image is more complete, and the details With richer features, camouflage targets can be better highlighted

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  • Camouflaged target recognition method based on k-means clustering and polarization information extraction

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Embodiment

[0044] The present invention is based on the K-means clustering and polarization information extraction camouflaged target recognition method, through the following steps to achieve:

[0045] Step 1: Obtain the target polarization parameter image data. Before obtaining the target polarization parameter image data, it is necessary to take the original light intensity image such as figure 1 As shown, the camera used in the experiment of the present invention is a visible light black-and-white camera, and the shooting scene is a metal plate coated with a khaki camouflage coating placed under a tree covered with fallen leaves. From figure 1 It is difficult to find hidden camouflaged targets in the game.

[0046] Use the polarization imaging system to carry out polarization imaging on the target, and obtain the linear polarization component light intensity image I with the angles between the light transmission axis of the polarizer and the horizontal direction in the polarizati...

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Abstract

The invention discloses a camouflaged target identification method based on K-means cluster and polarization information extraction. Target polarization parameter image data can be acquired, and then a polarization degree image, a polarization angle image, and an ellipticity angle image can be acquired, and then the clustering of the acquired multi-dimensional images I (pi, theta, epsilon) can be carried out by adopting the K-means, and then the new cluster center Cmi can be calculated, and in addition, the new cluster center can be calculated repeatedly until the change of the cluster center Cmi is stopped, and the iteration is terminated, and the final cluster fusion image can be acquired. The camouflaged target identification method is advantageous in that the subjective vision and the objective evaluation can be improved greatly, and because the cluster fusion result is provided with the polarization degree information, the polarization angle information, and the ellipticity angle information in an integrated manner, the polarization information of the image can be more completed.

Description

technical field [0001] The invention belongs to the technical field of polarization imaging, in particular to a camouflage target recognition method based on K-means clustering and polarization information extraction. Background technique [0002] Artificial target detection in natural background is a hotspot in the field of target recognition, and detecting camouflaged targets in natural background has always been a difficult problem in this field. The research on polarization imaging detection at home and abroad has found that the polarization state information of the reflected or radiated light waves of objects can effectively distinguish scatterers with different materials, different surface shapes, and different conductivity. Under certain conditions, there is a large difference between the polarization information of the camouflaged target obtained by polarization imaging and the polarization information of the natural background. The surface of the artificial camoufl...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/62G06T7/40
Inventor 顾国华赵蓉杨蔚周骁骏张骏
Owner NANJING UNIV OF SCI & TECH