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A satellite atmospheric correction method for multi-angle polarized water color remote sensor

A multi-angle polarization and atmospheric correction technology, which is applied in the field of remote sensing image processing, can solve the problems affecting the exploration of water color components, and does not consider the atmospheric diffuse transmittance of the polarization component of the water-leaving radiation, so as to achieve high image quality and accurate detection results Effect

Active Publication Date: 2022-07-26
SECOND INST OF OCEANOGRAPHY MNR
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Problems solved by technology

[0003] H.Xianqiang et al. described the atmospheric correction method adopted by my country's HY-1A / COCTS ocean remote sensing satellite in The atmospheric correction algorithm for HY-1A / COCTS, SPIE Remote Sensing (SPIE, 2005), Vol. 5977. The main defect is that the atmospheric correction process only considers the water-leaving radiation intensity component, and does not consider the atmospheric diffuse transmittance corresponding to the water-leaving radiation polarization component when it is transmitted in the atmosphere. Water radiation information is very important to explore water body components and sea conditions. If the atmospheric correction process is not accurate enough, it will greatly affect the subsequent exploration of related water color components.

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  • A satellite atmospheric correction method for multi-angle polarized water color remote sensor
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[0023] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0024] As used herein, the term "including" and variations thereof mean open-ended inclusion, ie, "including but not limited to". The term "or" means "and / or" unless specifically stated otherwise. The term "based on" means "based at least in part on". The terms "connected", "connected" mean connection or communication, either directly or indirectly through other components. The terms "first", "second" and the like may refer to different or the same...

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Abstract

The invention provides a satellite atmospheric correction method for a multi-angle polarized water color remote sensor. The atmospheric correction method provided by the present invention uses the vector radiation transfer model to construct an index lookup table of atmospheric diffuse transmittance for the linear polarization component of the water-leaving radiation in the water body with medium and low turbidity. After accurate correction, the concentration of suspended particulate matter in water and the distribution of aerosol optical depth, concentration and particle size were obtained accurately according to the linear polarization component of water-leaving radiation. Through the atmospheric correction method provided by the present invention, the image quality of satellite remote sensing detection can be higher, and the detection result is more accurate.

Description

technical field [0001] The invention belongs to the field of remote sensing image processing, and in particular relates to a satellite atmospheric correction method for a multi-angle polarized water color remote sensor. Background technique [0002] The atmosphere is an important factor affecting the quantitative analysis and application of water color remote sensing. In the radiation intensity information received by the top of the atmosphere, atmospheric signals account for about 90%. Therefore, eliminating atmospheric effects is an important prerequisite for determining the accuracy of water color remote sensing analysis. Atmospheric correction of polarization images is of great significance for obtaining real polarization information of water bodies. [0003] In The atmospheric correction algorithm for HY-1A / COCTS, SPIE Remote Sensing (SPIE, 2005), Vol. 5977, H.Xianqiang et al described the atmospheric correction method adopted by my country's HY-1A / COCTS ocean remote se...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/06G01N15/02G01B11/06
CPCG01N15/06G01N15/0205G01B11/0641G01N2015/0693Y02A90/30
Inventor 潘天峰何贤强龚芳李腾王迪峰张翾
Owner SECOND INST OF OCEANOGRAPHY MNR
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