Adaptive infrared/optical image fusion method based on multi-scale monogenic features
A fusion method and optical image technology, applied in the field of image processing, can solve problems such as low resolution, inability to work around the clock, background noise interference, etc.
Pending Publication Date: 2020-10-16
NANJING COLLEGE OF INFORMATION TECH
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Among them, the optical image conforms to the visual characteristics of the human eye, and the image can reflect the physical and chemical information of the ground target and the scene and the spectral profile, which is easy to be interpreted manually; however, the optical imaging system cannot work all day and all day due to the influence of clouds and weather; at the same time, The optical image is limited by the sensitivity of the sensor, exposure time and photosensitive band conditions, and will be polluted by noise during the acquisition and transmission process; when the light is dark, the signal-to-noise ratio of the optical image is low, and it is difficult to distinguish the details of the image; The infrared image sensor has high sensitivity, and the imaging band is biased towards infrared. Under the condition of dark light, the image texture and edge features are more obvious, which can reveal the high-temperature camouflaged target; but the infrared detector is affected by the atmospheric thermal radiation, operating distance and Influenced by factors such as noise, the resulting infrared image has poor uniformity, small dynamic range, low resolution, and large background noise interference
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[0067] In order to explain the technical solution of the present invention more clearly, the following will further describe the present invention; obviously, the following description is only a part of the embodiments, for those of ordinary skill in the art, without creative work Under the premise of, the technical solution of the present invention can also be applied to other similar scenarios based on these; in order to explain the technical solution of the present invention more clearly, the technical solution of the present invention will be further described in detail below with reference to the accompanying drawings:
[0068] As shown in the figure; an adaptive infrared / optical image fusion method based on multi-scale monomorphic features, including the following steps:
[0069] Step (1.1), extract the monomorphic features of the source image, that is, the monomorphic amplitude coefficient that characterizes the signal energy, the monomorphic phase coefficient that characteri...
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The invention discloses an adaptive infrared / optical image fusion method based on multi-scale monogenic features. The invention belongs to the image processing field. The method comprises the following specific steps: 1, extracting features of a monogenic amplitude coefficient, a monogenic phase coefficient and a monogenic azimuth coefficient from a source image; 2, dividing the monogenic amplitude coefficient into different types of regions, fusing the regions containing redundant information by adopting a weighted average strategy, and fusing the regions containing complementary informationby adopting a modulus maximization strategy; 3, dividing the monogenic phase coefficient and the monogenic azimuth coefficient into different types of regions, and fusing the regions with poor correlation by adopting a modulus maximization strategy; fusing the regions with great phase information difference by adopting a modulus maximization strategy of amplitude-phase combined significance measurement; fusing areas with high similarity between amplitudes and phases by adopting a weighted average strategy of saliency measurement of amplitude-phase combination; 4, obtaining a fused image. According to the technical scheme of the invention, a better image fusion effect can be obtained.
Description
Technical field [0001] The invention relates to the field of image processing, in particular to an adaptive infrared / optical image fusion method based on multi-scale monomorphic features in the field of multi-source image processing. Background technique [0002] In the prior art, the information provided by a single sensor is not enough to meet the modern society’s demand for high precision and high automation of remote sensing images; in order to make up for the lack of information from a single observation method, multi-source sensors can be used to observe the target. Multi-source images of the same target or scene, and the images are merged to obtain a more accurate, comprehensive and reliable image information description of the target and scene. [0003] Currently commonly used imaging systems include high-definition imaging cameras, infrared thermal imaging cameras, etc. Among them, the optical image conforms to the visual characteristics of the human eye, and the image ca...
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Login to View More IPC IPC(8): G06T5/50G06K9/62
CPCG06T5/50G06T2207/10048G06T2207/20004G06T2207/20221G06T2207/20192G06F18/22
Inventor季秀霞汪东丽
OwnerNANJING COLLEGE OF INFORMATION TECH