Small target detection method based on improved Faster R-CNN

A small target detection and algorithm technology, applied in the field of target detection, can solve the problems of false detection and missed detection, low efficiency, high labor intensity, etc., and achieve high recognition accuracy, good recognition and detection effect

Inactive Publication Date: 2021-03-09
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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AI Technical Summary

Problems solved by technology

Obviously, this way of working is inefficient and is easily affected by the subjective experience and emotions of the cloth inspectors, and false detection and missed detection often occur
In addition, the detection of cloth defects is labor-intensive for workers, which not only damages the eyesight of cloth inspection workers, but also easily causes pneumoconiosis

Method used

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  • Small target detection method based on improved Faster R-CNN
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  • Small target detection method based on improved Faster R-CNN

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings.

[0033] First of all, the process of feature extraction of cloth defect images using the VGG16 network model is as follows: image 3 shown. VGG16 contains a total of 13 convolutional layers and 5 pooling layers. The convolution operation will not change the size of the feature map transmitted by the previous layer, and the step size of each pooling layer is 2, and the size of the feature map will be reduced to half after pooling. According to the collected cloth samples, the length of the input image is 2446, the width is 1000, and the number of channels is 3. The feature extraction is performed through the VGG16 network. The final output feature map has a length of 76, a width of 31, and the number of channels. for 512.

[0034] In the convolutional network that generates feature maps, the neurons that generate the underlying feature maps have less pre-computation s...

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Abstract

The invention discloses a small target identification technology based on an improved Faster R-CNN (Recurrent Convolutional Neural Network). The method has certain universality in the small target detection direction, and cloth defect detection is taken as an explanation case. A large number of small target defects and extremely large length-width ratio defects exist in cloth defects. For a smalltarget problem, feature pyramid fused multi-scale detection is added into a Faster R-CNN, and a multi-scale detection algorithm has certain universality and transportability for small target detection; for the problem of an extreme length-width ratio, preliminary statistics need to be carried out on the length-width ratio and the area of an actual cloth defect data set, then clustering is carriedout in an algorithm framework, and the size of a Faster R-CNN anchor box is reset through a K-means + + method. Based on the improved Faster RCNN algorithm model, cloth defects can be accurately identified, and a good identification effect can also be achieved for small target defects and defects with an extremely large length-width ratio.

Description

technical field [0001] The invention relates to the field of target detection in deep learning, and is aimed at small target detection, especially cloth defect detection technology. Background technique [0002] During the production process, various conditions such as equipment failure, factory ambient temperature changes, and staff operating errors will affect the quality of cloth production. Cloth defect is a key factor affecting the quality of fabric production, and directly affects the fabric quality grade, so the detection of cloth defect is particularly important. [0003] In the traditional cloth defect detection process, the cloth defects are mainly located, detected and marked by human eyes. Obviously, this way of working is inefficient and easily affected by the subjective experience and emotions of cloth inspection workers, and false detections and missed detections often occur. In addition, the detection of cloth defects is labor-intensive for workers, which n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06K9/62G06N3/04G06N3/08
CPCG06T7/0006G06N3/08G06T2207/10004G06N3/045G06F18/2415
Inventor 贾海涛莫超杰李俊杰许文波任利周焕来齐晨阳毛晨
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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