An interactive multi-image color visualization method for hyperspectral images

A hyperspectral image, interactive technology, applied in image analysis, spectrometry/spectrophotometry/monochromator, image data processing, etc. It is suitable for problems such as massive data of hyperspectral images, and achieves the effect of good display and easy determination.

Inactive Publication Date: 2019-05-24
DALIAN NATIONALITIES UNIVERSITY
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Problems solved by technology

However, these methods also have some problems, such as the inability to make full use of the color channel information, and the massive data that cannot be applied to hyperspectral images. In addition, among these methods, it is impossible to prove which method is the best for a certain data display. have the best display

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  • An interactive multi-image color visualization method for hyperspectral images
  • An interactive multi-image color visualization method for hyperspectral images
  • An interactive multi-image color visualization method for hyperspectral images

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Embodiment Construction

[0036] The present invention will be described in more detail below in conjunction with the accompanying drawings.

[0037] The present invention is an interactive multi-image color visualization method for hyperspectral images, which uses interactive means to display hyperspectral data purposefully. The following is the detailed implementation process:

[0038] Step 1. Information screening.

[0039] In the hyperspectral data containing a large amount of information, select n grayscale images, these images are used to represent the information that the user is interested in as complete as possible. They are respectively recorded as Image 1, Image 2...Image n, where 3≤n≤10. This method is still feasible when the number of nodes n>10, but the output image effect may deteriorate as the number of nodes increases. However, for most images commonly used at present, even hyperspectral images containing a large amount of information, most of the information can be represented by le...

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Abstract

The invention discloses a hyperspectral imagery interaction type multi-image color visualization method. The hyperspectral imagery interaction type multi-image color visualization method comprises step1, information screening; step2, node diagram ranking; step3, interaction type adjustment of three-channel information; step4, display in color space, normalization or image enhancement processing of three gray level images acquired in the step3, wherein the three channels used as the color space respectively used for displaying the acquired output images. The hyperspectral imagery interaction type multi-image color visualization method is advantageous in that an interaction interface is used to facilitate user operation; more information is expressed, and information of various types is displayed in a combined manner; the hyperspectral imagery interaction type multi-image color visualization method is used for the hyperspectral image, and is used for displaying the image information of other types, and integral color tone is adjusted according to requirements; the optimal output image is easily determined, and surface features or types are displayed in a prominent way.

Description

technical field [0001] The invention belongs to the technical field of remote sensing information processing, in particular to a color display method of a hyperspectral image. Background technique [0002] Since the advent of imaging spectrometers, hyperspectral images (Hyperspectral Imagery, HSI) have been more and more widely used in military, agriculture, ocean, environment, etc., and the corresponding visualization technology has also attracted increasing attention from researchers at home and abroad. Due to the large number of bands, hyperspectral images cannot be directly displayed in a color space with only three channels. For this reason, in order to display hyperspectral images in image space, the existing methods are to transform it into low-dimensional space first, and these methods include band selection, PCA dimensionality reduction, band fusion and so on. Traditional visualization methods directly use these transformation methods to transform the original hype...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/90G01J3/28
CPCG01J3/2823
Inventor 刘丹凤许小可肖婧毕学良
Owner DALIAN NATIONALITIES UNIVERSITY
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