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Weak and small target detection and tracking method

A technology of weak and small targets and targets, applied in the field of weak and small target detection and tracking, can solve problems such as lack of generalization and robustness, and achieve the effect of preventing model overfitting, improving tracking accuracy, and making up for the decline in recall rate.

Active Publication Date: 2022-07-01
WEST CHINA HOSPITAL SICHUAN UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Then, the current deep learning methods either pursue the ultimate performance in precision with huge parameters and calculations, or introduce the concept of deep learning conceptually but lack the generalization and robustness of practical applications.

Method used

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  • Weak and small target detection and tracking method
  • Weak and small target detection and tracking method

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Embodiment 1

[0070] like Figure 1-2 As shown, a weak and small target detection and tracking method proposed by the present invention includes the following steps:

[0071] S1. Construct a training set of image data, which specifically includes the following steps:

[0072] S1.1. Select original images with weak and small targets from the existing public image database to form a weak and small target database, and each original image has a manually segmented reference image;

[0073] S1.2. Optionally perform a connected domain analysis on a reference image to obtain the corresponding center coordinates of each target (x 0 ,y 0 );

[0074] S1.3. Generate an all-zero two-dimensional tensor with the same scale for any original image, and replace the points in the two-dimensional tensor with the surrounding positions of the center coordinates of each target in the image according to the following formula. The two-dimensional tensor is scaled to the range of (0,255) and saved as an image f...

Embodiment 2

[0131] In a method for detecting and tracking weak and small targets proposed by the present invention, compared with the first embodiment, the radius=30, the th resh old pre =1.2,th refresh old recall =1.2, the s 0 , s 1 , s 2 , s 3 The value of m is: 4, 8, 4, 2, the value range of the m value is 5 to 10, the value of m is 7, the value of R 01 , R 02 values ​​range from 10 to 30, the R 01 , R 02 The value is 20.

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Abstract

The invention relates to the technical field of computer vision and image processing, in particular to a weak and small target detection and tracking method, which comprises the following steps: S1, constructing an image data training set; s2, optimizing an inquiry type attention library; s3, adaptive filtering is carried out; and S4, carrying out progressive association. Firstly, weak and small target image information is obtained from a public data set image and a manual marking image, and a corresponding anchor-free label is generated so as to construct a weak and small target image database; and constructing a baseline deep learning model by using a residual structure, a feature fusion structure and a coding and decoding architecture. And the historical coordinate pipeline is subjected to diameter self-adaption, so that noise coordinates in the current coordinate pipeline can be filtered. And finally, carrying out association mining updating and adaptive filtering on the candidate coordinate pipelines with low-level thresholds step by step by using the reference coordinate pipelines with higher thresholds, and carrying out continuous iteration to obtain a final coordinate set. Compared with the prior art, the method has great advantages in recall rate, accuracy and comprehensive evaluation index aspects.

Description

technical field [0001] The invention relates to the technical fields of computer vision and image processing, in particular to a weak and small target detection and tracking method. Background technique [0002] Target detection and tracking is still an important method at present because of its low cost and anti-interference. Especially in anti-missile systems, sea surface monitoring, field detection, etc., all potential suspected targets should be discovered as soon as possible, so the detection of weak and small targets is an important step in target detection and tracking. Due to the lack of texture and color information of weak and small targets, the geometric features that can be captured but inconsistent, and the rapidly changing scale, these make the detection of weak and small targets the most challenging task in target detection and tracking systems. [0003] Objects to be inspected often travel between dense clouds and waves in various harsh environments and comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/246G06V10/25G06V10/26G06V10/62G06V10/82G06N3/04
CPCG06T7/251G06N3/045
Inventor 李才正兰勇唐堂彭博
Owner WEST CHINA HOSPITAL SICHUAN UNIV
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