Hyperspectral sparse unmixing device

Abstract

The invention relates to a hyperspectral sparse unmixing device and belongs to the technical field of hyperspectral unmixing. The device comprises a first box body, an air inlet fan, an air inlet cylinder, a filtering grid plate, a noise reduction assembly, a sponge, a damping cotton and a filtering assembly, wherein one end of the air inlet cylinder is inserted and fixed in the side wall of the first box body, the air inlet fan is arranged between the upper inner wall and the lower inner wall of the air inlet cylinder, the filtering grid plate is vertically arranged between the upper inner wall and the lower inner wall of the air inlet cylinder and is positioned at one end port of the air inlet cylinder. According to the invention, the noise reduction assembly filters redundant waves of the signal in the low-pass filter, and real-time additive noise such as cloud layer, atmosphere and the like in the acquisition process is removed, filtered and quantized, so that the quality of the hyperspectral image is improved, and the extraction precision of the end element generating sparse demixing is improved; the multi-scale geometric analysis is achieved by adopting the optical filteringtechnology through the filtering assembly, the sparse demixing efficiency is greatly improved on the premise of ensuring the reconstruction precision, and the rapid and effective sparse decompositionis achieved.

Description

technical field [0001] The invention belongs to the technical field of hyperspectral unmixing, and relates to a hyperspectral sparse unmixing device. Background technique [0002] Due to the diversity of types of measured objects, real-time changes of ground objects over time, and multiple scattering of ground object spectra, hyperspectral sensors inevitably have mixed pixels in the sampling process. , atmospheric and other real-time additive noise, quantization noise during the quantization process, and linear blur caused by the relative motion between the hyperspectral imager and the object ground object will degrade the quality of the hyperspectral image, resulting in the accuracy of the endmember extraction of sparse unmixing. Contents of the invention [0003] In view of this, the object of the present invention is to provide a device based on hyperspectral sparse unmixing. [0004] To achieve the above object, the present invention provides the following technical s...

AI Technical Summary

Problems solved by technology

[0002] Due to the diversity of measured objects, real-time changes of ground objects over time, and multiple scattering of ground object spectra, hyperspectral sensors inevitably have mixed pixels in the sampling process. , atmospheric and other real-time additive noise, quantization noise during the quantization process, and linear blur caused by the relative motion between the hyperspectral imager and the object ground object will degrade the quality of the hyperspectral image, resulting in the problem of the accuracy of the endmember extraction of sparse unmixing

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