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Multi-target tracking method

A multi-target tracking and target technology, applied in the field of improved multi-target tracking, can solve the problems of low tracking accuracy and failure to meet the test accuracy requirements

Inactive Publication Date: 2016-12-07
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Traditional target tracking methods include tracking based on Mean Shift, combined tracking of Mean Shift and Kalman filter, tracking based on template matching, and tracking methods based on particle filter. For structural vibration data, the above tracking methods usually have low tracking accuracy and are not Can meet the test accuracy requirements

Method used

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Examples

Experimental program
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Embodiment

[0086] Figure 2 to Figure 5 As an example of video multi-target (measuring point) tracking, the dynamic tracking of multi-target (measuring point) test structure is carried out. Realize synchronous tracking of vibration signals of multiple measuring points on the test structure.

[0087] Image 6 for Figure 5 37 on the fan blade # This method has better tracking accuracy and sensitivity for the response signals of the measuring points under pulse excitation and random excitation respectively.

[0088] Figure 7-10 They are the modal parameter identification results and mode shape diagrams of the three-pendulum system, French sycamore leaves, ginkgo leaves and fan blades. Using this method, the simultaneous tracking of multiple targets (measuring points) and the simultaneous extraction of vibration data of multiple measuring points are realized. And to ensure the test accuracy, it is more convenient and better to realize the modal parameter identification of flexible and...

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Abstract

The invention discloses a multi-target tracking method which comprises the steps of carrying out synchronous tracking extraction on multiple measuring points (multiple targets) and optimizing each tracking measuring point. The invention relates to the field of vibration testing and analysis, the synchronous extraction of multiple measuring point vibration signals can be realized, a data support is provided for subsequent analysis such as structure modal analysis, and the method is suitable for structure deformation and vibration testing and analysis.

Description

technical field [0001] The invention relates to an improved (video) multi-target tracking method, which belongs to the field of video image processing and can be applied to the field of structural vibration testing and analysis. Background technique [0002] Traditional target tracking methods include tracking based on Mean Shift, combined tracking of Mean Shift and Kalman filter, tracking based on template matching, and tracking methods based on particle filter. For structural vibration data, the above tracking methods usually have low tracking accuracy and are not Can meet the test accuracy requirements. When identifying the modal parameters of a structure, in order to obtain the mode shape information of the structure and avoid missing a certain order modal information of the test structure, it is necessary to simultaneously track and locate multiple measuring points. Through the improvement of multi-target tracking, the synchronous extraction of vibration data of multip...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/20
CPCG06T2207/10016G06T2207/20021
Inventor 王彤李俊坡夏遵平
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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