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Hyper-spectral image compression and encoding method and device

A hyperspectral image compression coding technology, which is applied in the field of hyperspectral image compression coding method and device, can solve the problems of image quality degradation, poor image reliability, etc., achieve good compression results and improve reliability

Inactive Publication Date: 2013-11-13
HARBIN ENG UNIV
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Problems solved by technology

However, these methods only compress and encode images indiscriminately, which will cause irreversible image quality degradation after compression, and the image reliability obtained after decompression is poor

Method used

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  • Hyper-spectral image compression and encoding method and device
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  • Hyper-spectral image compression and encoding method and device

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Embodiment Construction

[0061] The method of the present invention will be described in detail below through specific examples.

[0062] The invention provides a hyperspectral image compression coding method, such as Figure 9 As shown, the method includes:

[0063] 1. Read in hyperspectral image data The size of this image is m×n, each pixel has B band features, x i,j is the sample in the sample data set X, i, j are the position coordinates, R B Represents the B-dimensional feature space;

[0064] 2. Hyperspectral image target detection. Here, a hyperspectral image target detection algorithm based on adaptive space support sparse representation is used to detect the target information contained in the hyperspectral image. In the hyperspectral image space, it is very likely that adjacent pixels belong to the same object category, that is, their spectra are highly correlated to a certain extent. If there is a pixel spectrum and its adjacent pixel spectra, since they are likely to belong to the sa...

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Abstract

The invention provides a hyper-spectral image compression and encoding method and device. The hyper-spectral image compression and encoding method comprises the steps of detecting hyper-spectral images and obtaining target portions and background portions included in the hyper-spectral images; separating the target portions and the background portions; compressing and encoding the target portions and the background portions respectively. By compressing and encoding the target portions and the background portions respectively, the reliability and the high efficiency of hyper-spectral image compression and encoding are improved.

Description

technical field [0001] The field of image coding involved in the present invention is specifically a method and device based on hyperspectral image compression coding. Background technique [0002] As an important research direction of hyperspectral image processing, hyperspectral image compression coding technology has long been widely concerned by experts, scholars and engineers from various countries, and has been widely used in agriculture, mineral exploration, military defense and other fields. Hyperspectral images can provide a large amount of ground object detail information by using imaging and spectral technology, and can reflect the characteristics of ground objects in hundreds of electromagnetic spectrum bands. However, with the continuous development of hyperspectral technology, people's requirements for hyperspectral images are gradually increasing, which results in the continuous expansion of space, spectral resolution, and spectral band number; thus, the volum...

Claims

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Application Information

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IPC IPC(8): H04N7/26H04N7/30H04N7/64H04N19/89
Inventor 赵春晖李晓慧王桐崔颖赵艮平
Owner HARBIN ENG UNIV
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