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A Refined Analysis Method of Target Hotspot Area
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A technology of hotspot area and analysis method, applied in the field of information fusion, it can solve the problems of not considering the discontinuity and spatial distribution of the target track point, and unable to accurately characterize the characteristics of the movement law of the target, so as to achieve the effect of overcoming discontinuity.
Active Publication Date: 2022-05-17
SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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[0004] The purpose of the present invention is to overcome the deficiencies of the prior art. The traditional target hotspot area analysis method does not consider the discontinuity and spatial distribution of the target track points, and only performs simple statistics on the target track points to generate a roughly rectangular area. , can not accurately characterize the characteristics of the target's motion law, etc., and provide a refined analysis method for the target hotspot area. This method not only makes up for the above shortcomings, but also realizes the adaptive non-parameter calculation based on the input, and provides a variety of output results. Facilitates multi-style situation map drawing
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Embodiment 1
[0053] Such as Figure 1-12 As shown, a refined analysis method for the target hotspot area,
[0054] S1, grid division of the analysis area;
[0055] In this step, input the latitude and longitude range of the rectangular analysis area, the number of grid rows m and the number of grid columns n.
[0056] According to the number of grid rows and columns, the analysis area is evenly divided into m×n rectangular grids of equal size, and the longitude step value lon corresponding to each grid is calculated step and the latitude step value lat step .
[0057] S2, track position point interpolation;
[0058] In this step, input multiple original track sets T of the target original ={P i}, i=1,2,...n tracks . where P i Refers to the i-th track, consisting of several position points P i ={p ij} form, j=1,2,...n pi , n pi is the track P i The number of location points included; n tracks is the number of tracks.
[0059] According to the grid longitude step value lon s...
Embodiment 2
[0116] Assuming that the analysis area is located in the northern hemisphere, its minimum longitude is lon min = 120°, the maximum longitude lon max =125°, minimum latitude lat min = 20°, latitude maximum value lat max =25°, the number of grid rows and columns are both 10. The target has a total of 10 target tracks, such as Figure 6 shown. One of the tracks is located in the upper left corner of the area; 6 tracks extend from the lower left corner of the area to the upper right corner; the other 3 tracks are located in the lower right corner of the area, and their shape is roughly rectangular.
[0117] (1) Analysis area grid division
[0118] Input the latitude and longitude range of the rectangular analysis area, the number of grid rows m=10 and the number of grid columns n=10. Divide the analysis area evenly into 10×10=100 rectangular grids of equal size, and calculate the longitude step value lon corresponding to each grid step 0.5°, latitude step value lat step Al...
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Abstract
The invention discloses a refined analysis method for a target hotspot area, comprising the steps of: S1, dividing and analyzing regional grids, and calculating the longitude step value and latitude step value corresponding to each grid; S2, interpolating track position points, generating The track set after interpolation; S3, the statistics of the number of grid visits, the generated matrix is used to represent the total number of visits of each grid in the area, and is used to draw the heat map; S4, adaptively calculate the threshold based on the statistical histogram; S5, Generate a hotspot grid based on the region growing method; S6, extract the envelope points of the hotspot area based on the set rules, and generate an envelope point set; S7, connect the envelope points of the hotspot area based on the set direction rule, and generate multiple envelope sets of the hotspot area ; S8, outputting the processed results, used to support multi-style situation map drawing, etc.; the present invention realizes the adaptive non-parameter calculation based on the input, and provides diversified output results, which is convenient for multi-style situation map drawing and the like.
Description
technical field [0001] The present invention relates to the technical field of information fusion, and more specifically, to a refined analysis method for a target hotspot area. Background technique [0002] In informationized warfare, a large amount of trajectory data of moving targets can be collected through various sensors, but the data volume is large and complex, and it is necessary to analyze the meaning of it through big data analysis to assist the commander to quickly and effectively analyze the enemy's action intention and Make accurate decisions. The fine-grained analysis of target hotspot areas based on a large number of target tracks can enable commanders to intuitively feel the common movement areas of targets and assist them in judging the characteristics and trends of target movements, which has important research value and practical significance. [0003] The traditional method uses three major steps to extract the target hotspot area: rasterization of the ...
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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/187G06T5/40G06T7/136
CPCG06T7/187G06T5/40G06T7/136
Inventor 温卓漫鲁燕余康郭宇喆陈鸣刘湘德刘刚
Owner SOUTHWEST CHINA RES INST OF ELECTRONICS EQUIP
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