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Track extraction method and device

An extraction method and track technology, applied in the field of track extraction methods and devices, can solve problems such as large amount of calculation, difficulty in digging out the topological relationship of lines, and difficulty in defining similarity measures

Pending Publication Date: 2020-10-23
CETC OCEAN INFORMATION CO LTD
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Problems solved by technology

However, for ocean track data with long duration, uneven data collection interval and quality, and strong correlation between data quality and geographical area, it is difficult to define a good similarity measure, and the required calculation is relatively large, and it is difficult to pass the distribution It is difficult to mine the real topological relationship between the lines from the origin port to the destination port because of the large-scale data set

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  • Track extraction method and device
  • Track extraction method and device
  • Track extraction method and device

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Embodiment Construction

[0023] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

[0024] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0025] An embodiment of the present application provides a method for extracting a track, and the method is applied in a terminal. It should be noted that the terminals involved in the embodiments of the present application may include, but are not limited to, personal computers (Personal Computer...

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Abstract

The invention discloses a track extraction method and device. The method comprises the steps of obtaining to-be-extracted historical track data; extracting a key point of each flight path according tothe historical flight path data; clustering the key points, and extracting representative points from each category; and connecting the representative points to generate a route branch graph. The method provided by the invention not only has good adaptability to complex ocean vessel trajectory data, but also can well display the sequence relationship among the plots in the navigation process andthe transfer sequence of the vessel on the whole course based on the trajectory branch graph.

Description

technical field [0001] The invention relates to the technical field of data mining in computer science and technology, in particular to a method and device for extracting track. Background technique [0002] With the advancement of data collection and data processing technology, many organizations are currently mining valuable information from massive trajectory data. The track is the actual path of an aircraft or ship. In the maritime field, identifying the track of a ship is of great significance for issues such as port operation and management, trade relationship analysis, and maritime traffic management. [0003] In the prior art, the method of extracting track data of land targets is used for reference, and the similarity between track sequences is grouped. However, for ocean track data with long duration, uneven data collection interval and quality, and strong correlation between data quality and geographical area, it is difficult to define a good similarity measure, ...

Claims

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Application Information

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IPC IPC(8): G06F16/29G06K9/62G08G3/00
CPCG06F16/29G08G3/00G06F18/2321Y02D10/00
Inventor 梁新徐垚任呈祥温建新赵利坡
Owner CETC OCEAN INFORMATION CO LTD
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