Space-based infrared hyperspectral image intelligent compression method

A hyperspectral image and intelligent compression technology, which is applied in the intersection of information processing and telemetry and remote sensing, can solve problems such as the inability to meet the data compression requirements of infrared hyperspectral satellites for remote sensing measurement of moving targets, and achieve great practical value and economic benefits. Undistorted effect

Active Publication Date: 2018-06-22
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0004] Aiming at the defects of the prior art, the purpose of the present invention is to solve the technical problem that the traditional hyperspectral image compression

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  • Space-based infrared hyperspectral image intelligent compression method
  • Space-based infrared hyperspectral image intelligent compression method
  • Space-based infrared hyperspectral image intelligent compression method

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[0036] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0037] The invention proposes a space-based infrared hyperspectral image intelligent compression method. The method firstly divides the hyperspectral image into object region and background region by object detection, then performs lossless compression on the hyperspectral cube in the object region and lossy compression on the hyperspectral cube in the background region. This method meets the r...

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Abstract

The invention discloses a space-based infrared hyperspectral image intelligent compression method. The method comprises the steps that infrared hyperspectral image cubes are determined; multiple narrow bands are selected according to infrared physical characteristics of a target; the target is detected in images corresponding to the selected narrow bands; suspected targets are preliminarily screened through target infrared feature fusion; suspected targets are further screened through multi-frame track association; a central spectrum of each suspected target is acquired; a spectrum on pixels of each suspected target and the central spectrum of the corresponding suspected target are compared to determine a target region, and other regions, except the target regions, are regarded as background regions; and nondestructive compression is performed on the hyperspectral image cubes in the target regions, and destructive degree-controllable compression is performed on the hyperspectral imagecubes in the background regions. According to the method, nondestructive compression is performed on the target regions, destructive compression is performed on the background regions, and therefore non-distortion of target information is guaranteed while a high compression rate is realized.

Description

technical field [0001] The invention belongs to the intersection field of information processing and remote measurement and remote sensing, and more specifically relates to a space-based infrared hyperspectral image intelligent compression method. Background technique [0002] Data acquired by infrared hyperspectral satellites for remote sensing of moving targets (such as rockets) or dynamically changing objects (such as fires) need to be downloaded in real time. Due to the limited download bandwidth, its data needs to be compressed at a high rate. Although traditional hyperspectral image lossless compression does not lose target information, its compression rate is low, while traditional hyperspectral image lossy compression has high compression rate but loses target information. [0003] Therefore, traditional hyperspectral image compression methods cannot meet the data compression requirements of infrared hyperspectral satellites for remote sensing of moving targets or d...

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Application Information

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IPC IPC(8): G06T9/00G01N21/35
CPCG01N21/35G06T9/00
Inventor 张天序姚守悝朱顺隆张耀宗
Owner HUAZHONG UNIV OF SCI & TECH
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