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A Method of Fusion and Denoising of Multiple Remote Sensing Images Based on DS Evidence Theory

A remote sensing image fusion and remote sensing image technology, applied in the field of remote sensing image denoising processing, to achieve the effect of good edge texture details and rich information sources

Active Publication Date: 2019-04-16
SHANGHAI OCEAN UNIV
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  • Description
  • Claims
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  • A Method of Fusion and Denoising of Multiple Remote Sensing Images Based on DS Evidence Theory
  • A Method of Fusion and Denoising of Multiple Remote Sensing Images Based on DS Evidence Theory
  • A Method of Fusion and Denoising of Multiple Remote Sensing Images Based on DS Evidence Theory

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Embodiment 1

[0035] According to the remote sensing images of different time series, due to the influence of different factors such as atmospheric radiation and temperature, the location and degree of noise pollution of the remote sensing images are also different, that is, the noise content of the remote sensing images in the same area at different times is different. A certain position of the image is noise, but the position of another image does not necessarily contain noise. The complementary information of multiple remote sensing images is used for fusion and denoising, and the data with better quality in multiple remote sensing images (non-noise data or noise data) are selected. Data attenuation data), fused into a new image.

[0036] Such as figure 1 As shown, a multiple remote sensing image fusion denoising method based on DS evidence theory, the method specifically includes the following steps: Step 1, select multiple remote sensing images at the same location for a certain period...

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Abstract

The invention relates to a method for fusion and denoising of multiple remote sensing images based on DS evidence theory. The method specifically includes the following steps: selecting multiple remote sensing images of a certain time period at the same location, and then establishing four noise models for each image; Perform data statistical analysis on the four noise models, and obtain the probability that each pixel is noise under each model, as the basic probability distribution of DS evidence theory; use the DS evidence theory fusion rules to fuse the four evidences into one evidence, and get The probability that each pixel of each image is noise; reuse the fusion rules of DS evidence theory to fuse the information of multiple remote sensing images to obtain the total evidence of the fusion of multiple remote sensing images; finally calculate the confidence interval based on the evidence, and Use the designed decision rules for denoising to obtain a fusion denoised image. Its advantages include: relying on rich information sources, it can achieve denoising while better retaining the edge texture details of remote sensing images.

Description

technical field [0001] The invention relates to the technical field of remote sensing image denoising processing, in particular, it is a multiple remote sensing image fusion denoising method based on DS evidence theory. Background technique [0002] Digital images are easily polluted by noise in the process of acquisition and transmission. The contaminated image will affect the further processing of the image, and bring certain difficulties to the understanding and recognition of the image. Studies have shown that in an image, when the signal-to-noise ratio is lower than 14.2db, the probability of false detection in image segmentation is greater than 0.5%; in parameter estimation, the estimation error of parameters is greater than 0.6%; in the determination of the number of regions , it is easy to overestimate the number of regions. Therefore, before edge detection, parameter estimation, feature extraction, information analysis and pattern recognition are processed on the i...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00
CPCG06T2207/10032G06T5/70
Inventor 黄冬梅朱贵鲜张明华徐首珏石少华王丽琳
Owner SHANGHAI OCEAN UNIV
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