Mesoscale convection system identification and tracking method based on stationary satellite infrared cloud atlas

A mesoscale convective and geostationary satellite technology, applied in scene recognition, character and pattern recognition, image enhancement, etc., can solve problems such as the inability to fully accurately represent the system, the complex evolution process of generation and elimination, and the wrong tracking of the system. Facilitates identification and tracking accuracy, improved applicability and accuracy

Active Publication Date: 2019-11-05
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

Because the evolution process of mesoscale convective systems is very complex, the cloud top profile cannot fully represent t

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  • Mesoscale convection system identification and tracking method based on stationary satellite infrared cloud atlas
  • Mesoscale convection system identification and tracking method based on stationary satellite infrared cloud atlas
  • Mesoscale convection system identification and tracking method based on stationary satellite infrared cloud atlas

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Embodiment Construction

[0058] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.

[0059] Aspects of the invention are described in this disclosure with reference to the accompanying drawings, which show a number of illustrated embodiments. Embodiments of the present disclosure are not necessarily intended to include all aspects of the invention. It should be appreciated that the various concepts and embodiments described above, as well as those described in more detail below, can be implemented in any of numerous ways, since the concepts and embodiments disclosed herein are not limited to any implementation. In addition, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.

[0060] The present invention provides a mesoscale convective system identification and tracking method based on static satel...

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Abstract

The invention provides a mesoscale convection system identification and tracking method based on a stationary satellite infrared cloud atlas, which is characterized by comprising the following steps of: 1) identifying a mesoscale convection system boundary on the stationary satellite cloud atlas; 2) filling and numbering an area surrounded by the closed boundary; 3) repeating the steps 1) and 2) until all mesoscale convection systems are identified; 4) respectively calculating the cloud cluster attribute of each numbered mesoscale convection system; 5) determining a candidate cloud cluster ofthe mesoscale convection system to be tracked at the next moment by utilizing two continuous frames of cloud charts; 6) calculating a spatial correlation coefficient between the to-be-tracked mesoscale convection system and the candidate cloud cluster, and 7) completing the tracking of the mesoscale convection system through the comparison of the spatial correlation coefficient. The method can automatically complete the recognition and tracking process of the mesoscale convection system, and remarkably improves the calculation efficiency and accuracy.

Description

technical field [0001] The invention belongs to the technical field of weather forecasting, and in particular relates to a method for identifying and tracking a mesoscale convective system based on a static satellite infrared cloud image. Background technique [0002] The mesoscale convective system MCS (Mesoscale Convective System) is the main weather system that causes disastrous weather. Accurate detection and forecasting of it is an important prerequisite for disaster prevention and mitigation. Mesoscale convective systems are difficult to be captured by conventional surface meteorological observation networks due to their small scale and short life history, resulting in a lack of understanding of their occurrence and development process. With the rapid development of meteorological satellite technology, it is possible to identify and track mesoscale convective systems. [0003] In the identification of mesoscale convective systems, threshold discrimination of infrared ...

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Application Information

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IPC IPC(8): G06K9/00G06T7/246G06T7/62
CPCG06T7/246G06T7/62G06T2207/10032G06T2207/30192G06V20/13
Inventor 黄小刚阳向荣费建芳程小平丁菊丽
Owner NAT UNIV OF DEFENSE TECH
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