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improved LeNet-5 fusion network traffic sign recognition method for assisting driving

A technology for traffic sign recognition and assisted driving, applied in the field of image recognition, can solve the problems of low accuracy and achieve the effects of improving accuracy, improving network accuracy, and increasing network depth

Active Publication Date: 2019-04-19
西安汇智信息科技有限公司
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AI Technical Summary

Problems solved by technology

However, when the LeNet-5 network structure classifies and recognizes multi-category targets such as traffic sign images, the accuracy rate is not high.

Method used

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  • improved LeNet-5 fusion network traffic sign recognition method for assisting driving
  • improved LeNet-5 fusion network traffic sign recognition method for assisting driving
  • improved LeNet-5 fusion network traffic sign recognition method for assisting driving

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Embodiment Construction

[0041] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0042] 1 Convolutional Neural Network

[0043] 1.1 Convolution layer

[0044] In Convolutional Neural Networks, convolutional layers are used for feature extraction. After the feature map of the previous layer is input, each convolution kernel is convolved with it, and the convolution kernel slides on the feature map with a certain step size, and performs a convolution operation every time it slides, and finally obtains this A feature map of the layer, so that each feature map has a certain relationship with several feature maps of the upper layer. Each convolution kernel can extract one feature, and n convolution kernels can extract n kinds of features to obtain n feature maps. The calculation formula of the general convolutional layer is shown in formula (1):

[0045]

[0046] Among them, l represents the first layer; w ij Represents the convolution kernel; ...

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Abstract

improved LeNet-5 fusion network traffic sign recognition method for assisting driving is disclosed. The method comprises the following steps of constructing a traffic sign image data set and constructing a training set and a test set according to the traffic sign data set, .secondly, constructing a convolutional neural network CNN; substituting the training set image data into a convolutional neural network CNN for training, and storing the trained model; And finally, substituting the test set image data into the trained model for prediction to obtain a prediction result.

Description

technical field [0001] The invention relates to the field of image recognition, in particular to an improved LeNet-5 fusion network traffic sign recognition method for driving assistance. Background technique [0002] In the current information age, with the development of urban modernization, the number of cars has increased sharply, traffic congestion, and frequent traffic accidents. Therefore, improving the safety of vehicles has become the primary issue of modern urban intelligent transportation systems. In recent years, traffic sign recognition technology in assisted driving has gradually attracted extensive attention from researchers at home and abroad. At present, the main algorithms of traffic sign classification and recognition include statistical classification method, template matching method, sparse coding method, neural network method and genetic algorithm, etc. Among them, the traffic sign recognition algorithm based on convolutional neural network has been hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06N3/04
CPCG06V20/582G06N3/045
Inventor 黄鹤汪贵平郭璐李昕芮王会峰宋京赵昆许哲盛广峰黄莺惠晓滨何永超李光泽胡凯益任思奇刘琦妍
Owner 西安汇智信息科技有限公司
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