Foundation all-sky cloud parameter inversion system and method

A parameter inversion and all-sky technology, applied in image data processing, instruments, calculations, etc., can solve problems such as inability to objectively and quantitatively analyze sky cloudiness, strong subjectivity, and continuity cannot be guaranteed, and achieve rich and clear details , Enhance cloud recognition and prevent damage

Active Publication Date: 2020-08-28
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The observation of ground-based clouds has been mainly completed by manual observation for a long time, which is highl...

Method used

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  • Foundation all-sky cloud parameter inversion system and method
  • Foundation all-sky cloud parameter inversion system and method
  • Foundation all-sky cloud parameter inversion system and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as Figure 1-2 As shown, a ground-based all-sky cloud parameter inversion system includes an imaging module for collecting sky images, a calculation module 102 for receiving sky images acquired by the imaging module and performing image cloud analysis, an environment adjustment module 101, and a support 103 , the housing 104 is disposed on the bracket 103 . The calculation module 102 is arranged on the bracket 103, the imaging module and the environment adjustment module 101 are arranged above the bracket 103, and the calculation module 102, the imaging module, and the environment adjustment module 101 are arranged on the bracket 103 and the housing 104 to form a in the cavity. The computing module 102 is connected with the imaging module, and the computing module 102 is a microcomputer motherboard based on ARM, and its system is based on Linux.

[0037] The system adopts the method of shooting sky image upwards.

[0038] Such as figure 2 As shown, the imaging...

Embodiment 2

[0045] Such as image 3 As shown, the method of using a ground-based all-sky cloud parameter inversion system in Embodiment 1 includes the following steps:

[0046] S1. The calculation module 102 controls the imaging module to collect multiple sky images, and obtains multiple sky images with different exposure values; wherein the imaging module periodically collects photos, and the minimum collection period is 1 minute.

[0047] S2. Use high dynamic rendering technology to perform HDR processing on multiple collected sky images to synthesize a high dynamic range sky image; the synthesized image combines sky image information obtained under different exposure values ​​to obtain a more detailed and clear image ,Such as Figure 4 Shown is the synthetic high dynamic range sky image.

[0048] S3. Perform dark channel defogging image enhancement processing and sun mask processing on the synthesized high dynamic range sky image; The turbidity phenomenon caused by light etc. on the i...

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Abstract

The invention belongs to the field of meteorological observation, and particularly relates to a foundation all-sky cloud parameter inversion system and method, and the method comprises the specific steps: S1, enabling a calculation module to control an imaging module to collect a plurality of sky images; S2, performing HDR processing on the acquired sky images to synthesize a sky image with a highdynamic range; S3, carrying out defogged image enhancement processing and solar mask processing on the synthesized sky image with the high dynamic range; S4, identifying and marking blue sky, thin cloud and thick cloud in the sky image processed in the step S3 by using an adaptive threshold segmentation method according to different sky backgrounds, different cloud layer imaging characteristics,different RGB information and different texture characteristics; and S5, obtaining cloud information and cloud amount information. The method has the advantages that through HDR processing, an image enhancement technology, a defogging technology and mask processing, cloud information and cloud amount information are finally and accurately calculated.

Description

technical field [0001] The invention belongs to the field of meteorological observation, in particular to a ground-based all-sky cloud parameter inversion system and method. Background technique [0002] Cloud amount and cloud shape have a clear indication of weather conditions and weather changes, and are the basic meteorological elements for long-term observation by weather stations at all levels. The observation of ground-based clouds has been mainly completed by manual observation for a long time, which is highly subjective, cannot objectively and quantitatively analyze the sky cloud amount, and the continuity cannot be guaranteed. Therefore, a specialized equipment is needed for automatic and continuous observation of clouds and to record the continuous evolution process of clouds. Contents of the invention [0003] In order to adapt to different weather conditions and obtain more accurate ground-based cloud parameter information, the present invention provides a gro...

Claims

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Application Information

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IPC IPC(8): G06T5/00G06T7/11G06T7/136G01W1/00
CPCG06T5/003G06T7/11G06T7/136G01W1/00G06T2207/10004G06T2207/10024G06T2207/20208Y02A90/10
Inventor 王依人夏营威张龙高震宇吴佳玲邓国庆刘勇
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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