Radar echo video data vectorization processing method, system and device

A technology of video data and radar echo, which is applied in the direction of radio wave measurement system, electromagnetic wave re-radiation, measurement device, etc., can solve the problem of reducing data volume and low data volume, and achieve data volume reduction, fast processing, and sharp solution Thorn effect

Pending Publication Date: 2022-02-25
HAIHUA ELECTRONICS ENTERPRISECHINA CORP
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the defects and deficiencies in the prior art, the present invention provides a method for vectorizing radar echo video data. The present invention processes while scanning, effectively solving the problem of time delay; meanwhile, the present invention vectorizes data The volume is very low, and the compression ratio is as high as 90%, which solves the problem of network transmission of a large amount of video data, and effectively and quickly processes the data with video gray value, reducing the amount of data

Method used

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  • Radar echo video data vectorization processing method, system and device
  • Radar echo video data vectorization processing method, system and device
  • Radar echo video data vectorization processing method, system and device

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Embodiment 1

[0080] Such as figure 1 As shown, this embodiment provides a vectorization processing method for radar echo video data, which is suitable for the characteristics of radar video data scanning by azimuth, and can be calculated while scanning, specifically including the following steps:

[0081] S1: Use filtering technology to calculate the video threshold, and perform binarization processing on the two-dimensional video data;

[0082] S11: Calculate the video threshold λ based on radar filtering;

[0083] S12: Utilize the characteristics of radar scanning by azimuth, after the data in a certain azimuth is updated, the azimuth can be binarized, if the value of the data point is greater than the video threshold λ, then modify the corresponding value to 1, otherwise set it to 0 ,Such as figure 2 As shown, the two-dimensional data is obtained after the traversal is completed, and the radar in this embodiment has 2048 azimuths and 4096 data points;

[0084] S2: Split and stitch t...

Embodiment 2

[0179] This embodiment provides a processing system for radar echo video data vectorization, including:

[0180] Video threshold calculation module, binarization processing module, splitting and splicing module, data traversal module, contour analysis module, latitude and longitude calculation module and output module;

[0181] In this embodiment, the video threshold calculation module is used to calculate the video threshold based on radar filtering;

[0182] In this embodiment, the binarization processing module is used to perform binarization processing on two-dimensional video data;

[0183] In this embodiment, the splitting and splicing module is used for splitting and splicing the binarized data, searching for the data segment of each orientation, and storing the start pixel and end pixel of the data segment at the same time, and continuously multiple orientations The data segments on constitute polygons and store them in the unfinished polygon collection;

[0184] The...

Embodiment 3

[0190] This embodiment provides a computing device, which may be a desktop computer, a notebook computer, a smart phone, a PDA handheld terminal, a tablet computer or other terminal devices with a display function, the computing device includes a processor and a memory, and the memory stores One or more programs, when the processor executes the programs stored in the memory, the method for processing radar echo video data vectorization in Embodiment 1 is realized.

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Abstract

The invention discloses a radar echo video data vectorization processing method, system and device, and the method comprises the following steps of calculating a video threshold, carrying out binarization processing on the video data, then splitting and splicing, searching a data segment of each direction, storing the starting pixel and the ending pixel of the data segment, forming a polygon with the data segments in a plurality of consecutive orientations; performing data intersection judgment on the latest data segments of the polygons and a current azimuth data segment set, if an intersection exists, splicing the current azimuth data segments onto the corresponding polygons, and if the intersection does not exist, storing the current azimuth data segments into a completed polygon set; traversing the whole radar video azimuth data; performing contour analysis on the polygons, and searching the inflection points of each polygon; calculating the longitude and latitude of each inflection point of the polygon; and adopting a longitude and latitude mode for transmission and carrying out multi-radar video fusion. According to the method, the data volume is reduced, and the problem of vectorization delay of the existing radar image video is effectively solved.

Description

technical field [0001] The invention relates to the technical field of radar video data processing, in particular to a processing method, system and equipment for radar echo video data vectorization. Background technique [0002] In the VTS ship traffic management system, radar echo video data is a very important part of the display system, and also has the largest amount of data. The original data of a single radar occupies a bandwidth of about 5Mbyte / s. Generally, a VTS system is composed of multiple radars, ranging from one or two to more than 20 radars. The cost of radar echo video data transmission is very high. great influence. Therefore, it is very important to vectorize radar echo video data. [0003] Radar video data contains useful data such as correct ships, navigation marks, coastlines, etc., as well as clutter data such as waves, rain and snow. Radar video two-dimensional data refers to azimuth and distance data. The azimuth is 0 to 360 degrees, and the distan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S17/89G01S7/48
CPCG01S17/89
Inventor 刘志勇李刚詹剑峰
Owner HAIHUA ELECTRONICS ENTERPRISECHINA CORP
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