Crowd density estimation method and device, equipment and storage medium

The invention discloses a crowd density estimation method, device and equipment and a storage medium, and the method comprises the steps: marking head targets in an original image, and dividing the head targets into N types; wherein N is a positive integer; obtaining a real data set of the N types of head targets based on the N types of head targets; the real data set comprises a real density map, a real foreground region and a real background region; a head target in the original image is processed based on a deep neural network, an estimation data set is output, and the estimation data set comprises an estimation density map, an estimation foreground area and an estimation background area; acquiring a total loss data set based on the real data set and the estimated data set; and training the deep neural network based on the total loss data set to obtain a target deep neural network. According to the technical scheme, foreground estimation, background estimation and crowd density estimation are combined, and