Image classification method based on three-side filter and stacked sparse autocoder
A technology of sparse autoencoder and classification method, applied in instrument, character and pattern recognition, computational model, etc., can solve problems such as inability to effectively extract high-order features of spectral data
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[0074] The following examples describe the present invention in more detail.
[0075] First, smooth hyperspectral images are obtained using a trilateral filter before performing hyperspectral image classification. Extract the spectral-spatial features of pixels while filtering out Gaussian, speckle and impulse noise of degraded images.
[0076] Second, a modified stacked sparse autoencoder (SSA) is used for high-order feature extraction.
[0077] Finally, a random forest classifier is used for supervised fine-tuning of the network and classification.
[0078] The classification method of the joint trilateral filter and stack sparse autoencoder proposed by the present invention is not only suitable for classifying hyperspectral images, but also can classify other images. It has strong portability and is easier to meet the needs of image classification.
[0079] The present invention specifically includes:
[0080] 1. The present invention proposes to use a trilateral filter...
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