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Method, system and equipment for dense target detection in any direction based on feature focusing

A technology for dense targets in any direction, applied in the dense target detection method in any direction based on feature focusing, system and equipment field, can solve the problems of many missed detections, poor detection effect, large target aspect ratio, etc. Improve the detection rate, detection effect, and improve the effect of positioning accuracy

Active Publication Date: 2021-06-01
THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing mainstream detection model algorithms have poor detection results when dealing with densely arranged targets with arbitrary directions, especially when facing some targets with large aspect ratios.
In real life, the shape of some targets (such as airplanes) tends to be square, and the distribution is relatively scattered. When detecting the square or fine-tuning the square, the position of the target can be well located, so that the target can be successfully detected, but for For other targets (such as ships), the aspect ratio of the target is often very large, and the arrangement is dense and the direction is arbitrary. For these targets, it is difficult for the mainstream detection algorithm to accurately locate the specific position of the target, and the given detection frame is often Adjacent targets will be covered, the overlap between the detection frames is serious, and there are many missed detections, so the detection effect is not good

Method used

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  • Method, system and equipment for dense target detection in any direction based on feature focusing
  • Method, system and equipment for dense target detection in any direction based on feature focusing
  • Method, system and equipment for dense target detection in any direction based on feature focusing

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Embodiment Construction

[0040] This embodiment describes the implementation of the present invention in detail in conjunction with the DOTA data set ship target released by Wuhan University as an example. The method provided by this embodiment is as follows figure 1 As shown, the specific steps are as follows:

[0041] 1) Use the K-means clustering algorithm to analyze the direction of the target in the training set, then rotate the image according to the main direction, and generate a new annotation file to achieve the focus of the feature. The specific process is:

[0042] A) Cluster Analysis Training Set Target Direction

[0043] A1) Screen the images containing ship targets in the DOTA dataset, randomly select 80% of the images to form the training set, and select a total of 320 images. Select an image in the training set, read all the label frame information corresponding to the image, first calculate the length and width of each target, and then calculate the direction of the target (that is, ...

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Abstract

The invention discloses a method, system and equipment for dense target detection in any direction based on feature focusing. The method includes four steps. One is to focus on the target features in the training set, complete data preprocessing, and generate a new training set; It is to build a target detection network and train the feature extraction ability of the model; the third is to extract the features of the target in the picture to be detected from different directions for detection; the fourth is to synthesize the detection results of each direction. The model constructed by the present invention fully focuses on the target features and realizes the accurate extraction of features. The experimental results show that the detection model generated by this method not only improves the accuracy of the target detection in the densely arranged direction, but also reduces the missed detection. Rate.

Description

technical field [0001] The present invention relates to a method, system and equipment for dense target detection in any direction, in particular to a method, system and equipment for dense target detection in any direction based on feature focusing. Background technique [0002] There are various types of information. In particular, information in the form of images is particularly important. Compared with information such as text and audio, images are more intuitive and contain more information. Fully extracting image information is an important direction of future information processing. The traditional way of extracting image information is mainly manual interpretation, which is inefficient. With the development of science and technology, image acquisition capabilities are getting stronger and stronger, and the number of images is increasing exponentially. Artificial methods can no longer adapt to the development of the times and the actual situation, and it is urgent to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/62
CPCG06V2201/07G06F18/23G06F18/23213G06F18/214
Inventor 李友江蒋炜郭成昊罗子娟缪伟鑫
Owner THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP