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Precise strike-oriented ground moving target detection and recognition method

A ground moving target and identification method technology, which is applied in the field of ground moving target detection and identification for precision strikes, and can solve problems such as complex backgrounds

Active Publication Date: 2017-12-19
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Application Information

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Problems solved by technology

Since the battlefield environment is ever-changing, the background of the target to be attacked is often complex

Method used

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  • Precise strike-oriented ground moving target detection and recognition method
  • Precise strike-oriented ground moving target detection and recognition method
  • Precise strike-oriented ground moving target detection and recognition method

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Embodiment Construction

[0072] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0073] The process of detecting targets from passive images is as follows: figure 1 As shown, firstly, the necessary preprocessing is performed on the input image, and then the candidate area that may contain the target is extracted from the image, and then whether the candidate area is identified as the target that needs to be detected, and finally the candidate area is further adjusted through post-processing to obtain the final Test results.

[0074] The ground moving target detection and recognition method oriented to precise strike of the present embodiment, such as figure 2 shown, including the following steps:

[0075] Step 1: Extracting target candidate areas with joint spatio-temporal information: firstly use time-domain information to obtain motion images, calculate forward motion history graph and backward motion history graph acc...

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Abstract

The invention discloses a precise strike-oriented ground moving target detection and recognition method. The method comprises the steps of: combining space-time information to extract a target candidate region, wherein the time-domain information is utilized to acquire moving images, forward-moving history graphs and backward-moving history graphs are calculated according to the moving images, images obtained by carrying out minimum-value acquisition on the forward-moving history graphs and the backward-moving history graphs according to pixels are used as input images, candidate moving regions are obtained through self-adaptive threshold processing and communication-domain extraction, the space-domain information is utilized to calculate materiality scores of the candidate moving regions , and the target candidate region is obtained through threshold processing; and recognizing the target candidate region, wherein feature learning is completed through local low constraint encoding, a linear support vector machine is utilized to realize recognition for the target candidate region, and a candidate region recognized as specific targets is reserved to obtain a final detection result. The method realizes automatic detection and recognition for the multiple ground moving targets in a complex environment, and improves the strike precision.

Description

technical field [0001] The invention relates to the fields of image processing and military technology, in particular to a method for detecting and identifying ground moving targets oriented to precision strikes. Background technique [0002] According to the needs of modern information warfare, precision strikes need to use airborne sensors to discover all valuable camouflaged targets in real time in complex battlefield environments, accurately capture, identify, and effectively destroy these targets. Therefore, the selection of appropriate airborne sensors is crucial for the implementation of precision strikes. Airborne image sensors can be divided into passive passive sensors and active active sensors according to their working methods. Among them, passive passive sensors mainly include visible light sensors and infrared sensors, while active active sensors mainly include synthetic aperture radars, millimeter wave radars, Active laser vision system, etc. [0003] For pr...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/46
CPCG06V20/48G06V20/42G06V10/462G06V2201/07
Inventor 闫钧华许倩倩张寅汪竟成杨勇肖勇旗
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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