Method for determining motion vector of cloud cluster in satellite cloud picture

A satellite cloud image and determination method technology, which is applied in image enhancement, image analysis, image data processing and other directions, can solve the problems of poor satellite cloud image clarity and difficulty in realizing effective identification of cloud imaging.

Inactive Publication Date: 2018-01-09
CHINA ELECTRIC POWER RES INST +2
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Problems solved by technology

[0004] Due to the limitation of satellite observation resolution, the clarity of some satellite clou

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  • Method for determining motion vector of cloud cluster in satellite cloud picture
  • Method for determining motion vector of cloud cluster in satellite cloud picture
  • Method for determining motion vector of cloud cluster in satellite cloud picture

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Embodiment Construction

[0054] To the above and related ends, one or more embodiments comprise the features hereinafter specified and particularly pointed out in the claims. The following description and drawings detail certain exemplary aspects and are indicative of but a few of the various ways in which the principles of various embodiments may be employed. Other benefits and novel features will become apparent upon consideration of the following detailed description in conjunction with the accompanying drawings, and the disclosed embodiments are intended to include all such aspects and their equivalents.

[0055] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0056] The following description and drawings illustrate specific embodiments of the invention sufficiently to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, a...

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Abstract

The invention relates to a method for determining a motion vector of a cloud cluster in a satellite cloud picture, and the method comprises the following steps: A, carrying out the processing of the satellite cloud picture: carrying out the image enhancement processing and image sharpening processing of the satellite cloud picture; B, carrying out the recognition of the satellite cloud picture: carrying out the preprocessing of the satellite cloud picture, extracting the cloud cluster from the satellite cloud picture through a threshold segmentation method, and carrying out the further processing of the cloud cluster through the mathematical morphology; C, carrying out the calculation of the motion vector of the satellite cloud picture. According to the invention, the method can achieve the calculation of the motion vector of a cloud layer through the processing of the satellite cloud picture and the combination of cloud layer recognition, cloud cluster pixel subset dividing and spatial feature matching.

Description

technical field [0001] The invention relates to new energy power prediction, in particular to a method for determining cloud motion vectors in satellite cloud images. Background technique [0002] The short-term power fluctuations of photovoltaic power plants are mainly affected by cloud cover. Numerical weather prediction cannot accurately predict the cloud layer and its evolution process. Based on cloud observation image data, through the identification of cloud observation image and accurate prediction of motion trajectory, and then Determining whether the photovoltaic power station can be shaded is the basis for realizing short-term power fluctuation prediction of the photovoltaic power station. [0003] Existing cloud observation methods include satellite cloud images, all-sky imagers, Doppler radars, etc. Satellite cloud images are of great importance in photovoltaic power prediction due to their large observation range, low cost, and high observation resolution. Grea...

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Application Information

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IPC IPC(8): G06K9/62G06T5/00G06T7/223
Inventor 王勃刘纯冯双磊赵艳青王铮车建峰靳双龙胡菊杨红英张菲马振强姜文玲宋宗鹏
Owner CHINA ELECTRIC POWER RES INST
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