Hyperspectral image denoising method based on non-local low-rank tensor decomposition of subspace
A hyperspectral image and tensor decomposition technology, applied in image enhancement, image analysis, image data processing, etc., to achieve the effect of improving denoising ability
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[0021] Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are only typical examples of applying the technical solutions of the present invention, and all technical solutions formed by adopting equivalent replacements or equivalent transformations fall within the protection scope of the present invention.
[0022] The present invention discloses a hyperspectral image denoising method based on subspace-based non-local low-rank tensor decomposition. The method includes the following steps:
[0023] S1: Obtain a hyperspectral image Y containing mixed noise from the remote sensing sensor;
[0024] S2: learn the subspace E from the hyperspectral image Y obtained in the step S1 through the HySime algorithm, by Z=E T After Y calculates and obtains the feature map Z, enter the S3 step;
[0025] S3: Construct group-similar 3D image blocks from feature map Z th...
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