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Night light data sequence construction method and apparatus

A technology of lighting and data sequence at night, which is applied in the field of remote sensing applications, can solve the problems of low processing efficiency and large amount of calculation, and achieve the effects of improving processing efficiency, convenient calculation, and saving certain time

Inactive Publication Date: 2017-05-17
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a nighttime light data sequence construction method and device for the defects of large amount of calculation and low processing efficiency in the existing nighttime light data sequence construction method

Method used

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  • Night light data sequence construction method and apparatus
  • Night light data sequence construction method and apparatus
  • Night light data sequence construction method and apparatus

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Embodiment 1

[0019] figure 1 A flow chart showing the method for constructing the night light data sequence in this embodiment. The nighttime light data sequence construction method corrects the nighttime light data collected by different remote sensing satellites (such as F10, F12, F14, F15, F16, F18) based on DMSP / OLS, so that different remote sensing satellites can collect nighttime light data. The data are comparable, and the night light data collected by different remote sensing satellites are used to construct the night light data sequence, which provides a basis for economic research, energy research, and urbanization expansion research.

[0020] like figure 1 As shown, the night light data sequence construction method includes the following steps:

[0021] S10: Receive the remote sensing image to be corrected, and obtain the corresponding night light data to be corrected.

[0022] Wherein, the remote sensing image to be corrected is a remote sensing image collected by any remote...

Embodiment 2

[0066] Image 6 A functional block diagram of the device for constructing night light data sequences in this embodiment is shown. The night light data sequence construction device corrects the night light data collected by different remote sensing satellites (such as F10, F12, F14, F15, F16, F18) based on DMSP / OLS, so that different remote sensing satellites collect night lights The data are comparable, and the night light data collected by different remote sensing satellites are used to construct the night light data sequence, which provides a basis for economic research, energy research, and urbanization expansion research.

[0067] like Image 6 As shown, the night light data sequence construction device includes a first data acquisition module 10 , a correction model acquisition module 20 , a data correction processing module 30 and a data sequence construction module 40 .

[0068] The first data acquisition module 10 is configured to receive remote sensing images to be ...

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Abstract

The invention discloses a night light data sequence construction method and apparatus. The night light data sequence construction method includes the steps: receiving a remote sensing image to be corrected, and acquiring the corresponding night light data to be corrected; based on the remote sensing image to be corrected, determining a training remote sensing image acquired by a remote sensing satellite which acquires the remote sensing image to be corrected, and obtaining a target correction model corresponding to the training remote sensing image; utilizing the target correction model to correct the night light data to be corrected, and obtaining the target night light data; and according to the target night light data, constructing a night light data sequence. The night light data sequence construction method can save the time of determining a ground calibration field, can improve the processing efficiency of the target correction model, and is convenient for computation during the process of correcting the night light data to be corrected, and the computing result is accurate and reliable.

Description

technical field [0001] The invention relates to the technical field of remote sensing applications, in particular to a method and device for constructing night light data sequences. Background technique [0002] The study of remote sensing of nighttime lights originated from a project started by the US Defense Weather Satellite Program in 1972, but the data collection and archiving began in 1992. Currently, the night light data comes from 6 different satellites, F10, F12, F14, F15, F16, F18. Although the satellite archive period has reached more than 20 years so far, the current research is still limited to the data of a certain satellite, or the data of a few satellites, and there are few studies using night light data sequences. The reason is that, on the one hand, it is due to the degradation of satellite sensors, and on the other hand, it is due to the large differences in the sensors of different satellites, which makes it difficult to compare data across time. Based ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T5/50
CPCG06T5/50G06T2207/20182G06T2207/10032G06T2207/20081G06T5/70
Inventor 张清凌王志盼钱静陈凯
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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