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TOM (Target Object Map) matching method based on geometric topology structure

A geometric topology and graph matching technology, applied in the field of TOM graph matching, can solve the problems of traditional methods such as increased computational complexity and decreased matching performance, and achieves the effect of simple design and clear principle

Active Publication Date: 2018-04-13
BEIJING INST OF ELECTRONICS SYST ENG
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Problems solved by technology

However, when there are a large number of targets in the field of view to form a many-to-many assignment, and the target mismatch is caused by the difference in the detection performance of radar and infrared sensors, the computational complexity of the traditional method increases rapidly, and the matching performance drops seriously.

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  • TOM (Target Object Map) matching method based on geometric topology structure
  • TOM (Target Object Map) matching method based on geometric topology structure
  • TOM (Target Object Map) matching method based on geometric topology structure

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Embodiment Construction

[0079] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0080] A TOM graph matching method based on geometric topology structure, the matching flow chart is as follows figure 1 As shown, the specific steps are: first step, using radar and infrared sensor to observe the target group, the radar obtains the tracking position information of the target in the group, and the infrared sensor obtains the detection information of the target in the group;

[0081] The second step is to convert the tracking position information of the radar target to the coordinates of the infrared focal ...

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Abstract

The invention discloses a TOM (Target Object Map) matching method based on a geometric topology structure. The method comprises steps: a radar and an infrared sensor are used to observe a target group, the radar acquires the tracked position information of a target in the group, and the infrared sensor acquires the detection information of the target in the group; the tracked position informationacquired by the radar is converted to an infrared focal plane coordinate system; a distance and angle dividing criterion for a polar coordinate is set; a preset model is built for extracting ODT features of the target group in the radar sensor and the infrared sensor; an ODT feature correlation matrix for a radar target map and an infrared target map is acquired; and based on an ODT feature matching module, matching between a radar target and an infrared target is completed. The TOM matching performance can be enhanced in a condition of target mismatch (that is, the target numbers observed bythe two sensors are different).

Description

technical field [0001] The invention relates to a method for matching TOM diagrams, in particular to a method for matching TOM diagrams based on geometric topology. Background technique [0002] When the radar and the infrared sensor observe the same target group, in order to obtain more information, the relative position, speed, characteristics, identification marks and other information of the target in the group obtained by the radar, that is, the target feature vector map (Target ObjectMap, TOM) , and the detection information of the target is fused with the infrared sensor. Before information fusion, it is first necessary to match and correlate the targets observed by the radar and infrared sensors to ensure the identity of the targets. Due to different sensor viewing angles, the target groups observed by radar and infrared sensors have different mutual positional relationships, but they are all projections of the same target group in different line-of-sight directions...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/72G06K9/62G06F17/16
CPCG06F17/16G01S13/72G06V10/758
Inventor 王佳宁刘纯胜邓隆范盛跃宾何威李蕾张秀苹
Owner BEIJING INST OF ELECTRONICS SYST ENG
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