Image-based crowd counting method and equipment

A crowd counting and image technology, applied in the field of image analysis, can solve the problems of poor regression accuracy, loss of position information, image deformation, etc., to achieve the effect of high accuracy, good scene adaptability, and reduced workload

A crowd counting and image technology, applied in the field of image analysis, can solve the problems of poor regression accuracy, loss of position information, image deformation, etc., to achieve the effect of high accuracy, good scene adaptability, and reduced workload

CN108960404AActive Publication Date: 2018-12-07ZHEJIANG UNIVIEW TECH CO LTD
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  • Image-based crowd counting method and equipment
  • Image-based crowd counting method and equipment
  • Image-based crowd counting method and equipment

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Embodiment Construction

[0031] As mentioned in the background art, most people counting solutions in the prior art have problems such as low accuracy rate, inability to satisfy both sparse crowd counting and dense crowd counting, and poor scene adaptability. The main reasons for these problems are: 1. Poor features, unable to accurately distinguish between crowds and background areas, and unable to adapt to input images of different sizes; 2. Perspective phenomenon, people near the camera occupy more pixels than people far away , many schemes normalize the view angle of the image based on the prior knowledge of the scene, which leads to poor scene adaptability of the scheme.

[0032] In view of this, this application proposes an image-based crowd counting method, which can be applied to dense crowds and sparse crowds at the same time, with high accuracy and good adaptability to different scenarios. Therefore, it can be mainly used to count the total number of people in public places and achieve good ...

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Abstract

The invention discloses an image-based crowd counting method and image-based crowd counting equipment. The image-based crowd counting method comprises the steps of inputting an image to be analyzed into a neural network comprising a multi-layer convolution layer and a feature fusion layer, performing scale normalization processing on output features of feature extraction sub-networks by means of the feature fusion layer, combining the output features after scale normalization processing with weighting coefficients corresponding to the output features to generate a crowd density map of the image to be analyzed, and finally integrating the crowd density map to determine the number of people in the image to be analyzed. The image-based crowd counting method and the image-based crowd countingequipment can count the total number of people based on one single image, have the advantages of high accuracy rate and good adaptability to the scene, can simultaneously satisfy dense crowd countingand sparse crowd counting, and can greatly reduce the workload of the statistician.

Description

technical field [0001] The invention relates to the technical field of image analysis, in particular to an image-based crowd counting method. The invention also relates to an image-based crowd counting device. Background technique [0002] With the rapid development of social economy, urban public construction is becoming more and more perfect, and the phenomenon of large crowds gathering in public places is becoming more and more serious, and the scale is getting bigger and bigger. Crowd counting is an important part of intelligent monitoring technology, which plays an important role in maintaining social stability and preventing crowd congestion and illegal gathering in public places. [0003] The commonly used dense people counting method first extracts features on the basis of foreground blocks, and then uses the features to perform regression to determine the number of people in dense scenes. Affected by the angle of view, people closer to the camera occupy more pixel...

Claims

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Application Information

Patent Timeline
07 Dec 2018
Publication
CN108960404A
IPC
G06N3/04; G06N3/08
CPC
G06N3/084; G06T7/0002; G06T2207/30242; G06N3/045
Inventors
徐茜; ζ―›ζ³‰ζΆŒ