Time sensitivity target detection positioning method under airport space relation constraint

A technology of spatial relationship and target detection, which is applied in image analysis, image enhancement, instruments, etc., can solve the problems of difficult detection and poor real-time performance of time-sensitive target detection, and achieve the effects of ensuring real-time performance, eliminating background interference, and reducing false alarms

Active Publication Date: 2013-12-18
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0007] Aiming at the above defects or improvement needs of the prior art, the present invention provides a time-sensitive target detection and positioning method under the constraints of the airport spatial relationship, the purpose of which is to solve the difficulty of

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  • Time sensitivity target detection positioning method under airport space relation constraint
  • Time sensitivity target detection positioning method under airport space relation constraint
  • Time sensitivity target detection positioning method under airport space relation constraint

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[0065] In order to make the object, technical solution and advantages of the present invention clearer, the present invention 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 the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0066] Such as figure 1 As shown, the time-sensitive target detection and positioning method under a kind of airport spatial relation constraint of the present invention comprises the following steps:

[0067] (1) Select an orthographic image map including the entire airport area from satellite images, and generate an airport landmark reference map based on the orthographic image map; figure ...

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Abstract

The invention discloses a time sensitivity target detection positioning method under an airport space relation constraint. The time sensitivity target detection positioning method comprises the steps that front view image maps containing an airport area and airport buildings are chosen from satellite images, an airport reference image is generated according to the front view image maps, secondary landmark reference images in airport area are chosen in the airport reference image, and constraints of the time sensitivity target moving areas and time sensitivity resident areas are constructed in the secondary landmark reference images. Real-time images are obtained, perspective transformation is carried out on the secondary landmark reference images according to real-time imaging line numbers and real-time imaging column numbers of the real-time images and flying guarantee parameters of a moving platform, and the time sensitivity target moving areas and the time sensitivity resident areas after conversion are obtained. Resident targets in the time sensitivity resident areas are identified and positioned, and detection positioning is carried out on moving targets in the time sensitivity target moving areas. The time sensitivity target detection positioning method can resolve the technical problems that the target dimension changes in time sensitivity target detection, more interference exists under a ground background, and detection real-time performance is poor.

Description

technical field [0001] The invention belongs to the technical field of intersecting imaging automatic target recognition and navigation guidance, and more specifically relates to a time-sensitive target detection and positioning method under the constraint of airport space relationship. Background technique [0002] The time-sensitive target refers to that the position, attitude and other characteristics of the target are also changing when the time changes. This type of target can not only reside in buildings including airport shelters and aprons, but also stay in stations beside runways and highways, or move out of the station to move on roads and runways. Compared with a fixed target, it is not only difficult to identify in a complex background, but also its position is dynamically changing. Therefore, its detection, identification, and positioning problems are extremely challenging. [0003] Regardless of whether it is in the civilian field or the military field, the a...

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Application Information

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IPC IPC(8): G06T7/20G06T5/50
Inventor 张天序王岳环高士英吴明强彭凡张力药珩杨智慧
Owner HUAZHONG UNIV OF SCI & TECH
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