Remote sense image noise background attenuation method

Abstract

The invention discloses a background noise weakening method of a remote sensing image, which comprises the following steps: (1) the image is detected: the remote sensing image that is the image containing the background noise is ensured by the detection; (2) the image is preprocessed; (3) the image is optimized: the image is optimized by eliminating 'sharp' information, namely, the information that is less on the quantity and is capable of generating bright pixel or dark pixel intensively and a great deal of concentrated information with the transmission ratio being less than 5 percent and the generated mask films; (4) the image is processed by extracting and separating the background noise spectrum by end members, calculating the abundance degree of the noise and inversing the useful information; (5) the image that is suitable for the visual effect is generated and the remote sensing image that the background noise is eliminated or weakened is synthesized. By adopting the method which takes the inversed end-member component as a kernel, the background noise can be inversely eliminated or weakened on the technique of the extraction and mixing of the pixel from the high-spectrum end members and the general remote sensing image can be recovered, thereby being capable of reflecting the characteristics of the useful information under the covering of a noise layer.

Description

technical field [0001] The invention belongs to the field of video information processing, and relates to a method for weakening background noise of remote sensing images, which is suitable for removing or weakening interference information processing in geological information extraction. Background technique [0002] This invention is supported by the national major basic research project (number: 2007CB411406), the national science and technology support plan key project (number: 2006BAB07B07-02), the geological survey work project (number: 1212010818018) and the basic scientific research business fee of the central public welfare scientific research institute Supported by special funds for projects (No. K2007-2-7). [0003] Background noise usually refers to all disturbing information that has nothing to do with useful information, and different usage purposes define different background noises. For example, in a remote sensing image, for the information on the ground, t...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that it is difficult to identify useful targets in remote sensing images under the coverage of background noise such as clouds and vegetation in the prior art, and it cannot be observed in real time. Perform real-time processing to remove or weaken background noise, thereby restoring remote sensing images with useful information under background noise

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