Deep learning-based image high-density population counting method

A deep learning and crowd counting technology, applied in the field of image processing, can solve problems such as perspective distortion, poor effect of crowd counting algorithms, and poor adaptability, and achieve strong generalization ability, easy learning, and good robustness

Pending Publication Date: 2017-10-27
SOUTH CHINA UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0003] Traditional crowd counting algorithms require complex preprocessing of images in the early stage, manual design and feature extraction, and poor adaptability i

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  • Deep learning-based image high-density population counting method
  • Deep learning-based image high-density population counting method
  • Deep learning-based image high-density population counting method

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Example Embodiment

[0046] Example

[0047] Based on the theory of convolutional neural network in deep learning, the present invention proposes a convolutional neural network model with complementary depth and shallow depth to complete the crowd density estimation of a single high-density crowd image. The method flow is as follows figure 1 Shown:

[0048] First use the deep learning framework caffe to build a deep and shallow complementary convolutional neural network;

[0049] Then, the existing public data sets UCF_CC_50, UCSD, WorldExpo and ShanghaiTech images in the data are enhanced, and finally the image data is enlarged to 192 times;

[0050] After the enhanced image data is processed by Gaussian kernel fuzzy normalization, the real crowd density map is obtained. The network output estimated density map and the real density map are continuously iteratively trained to optimize the entire network structure according to the loss function;

[0051] Input the crowd pictures and label pictures to the net...

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Abstract

The invention discloses a deep learning-based image high-density population counting method. The method comprises the following steps of S1, establishing a depth complementation convolutional neural network by utilizing a deep learning framework caffe; S2, performing image data enhancement on an image according to operations of angle rotation, image multi-scale zooming, image mirroring and image pyramid zooming; S3, performing Gaussian kernel fussy normalization processing on the enhanced image data to obtain a real crowd density graph, outputting an estimated density graph and the real density graph by the network, and performing continuous iterative training optimization on the whole network structure according to a loss function; and S4, inputting a crowd picture and a tag picture to the network for training, and performing continuous iterative optimization to obtain a trained network model finally. According to the method, the end-to-end convolutional neural network is designed; a picture is given and input, and the estimated density graph corresponding to the picture is output, so that an estimated crowd number is obtained; and by outputting the density graph, more useful information is reserved.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method for counting high-density crowds based on deep learning images. Background technique [0002] In recent years, the development of deep learning has been very hot. Convolutional neural networks have developed rapidly in image processing. Neural networks of various architectures emerge in endlessly. By designing sophisticated neural network structures, they can be used to estimate the number of people in high-density scenes. In public places such as train stations, gymnasiums and other places with dense traffic, it is of great significance to improve public safety by monitoring the number of people in real time and regulating the flow of people so as to avoid incidents that threaten personal safety such as stampedes. [0003] Traditional crowd counting algorithms require complex preprocessing of images in the early stage, manual design and feature extraction, and ...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06N3/08G06T3/40G06T3/60
CPCG06N3/08G06T3/40G06T3/60G06T2207/20016G06T2207/20081G06V20/53
Inventor 邓腾飞周智恒余卫宇
Owner SOUTH CHINA UNIV OF TECH
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