Unchanged view angle behavior identification method based on geometric invariable

Abstract

The invention provides an unchanged view angle behavior identification method based on a geometric invariable, which comprises a training process and an identification process, and the following steps that: the characteristics of track data with marked behavior category are extracted, the extracted characteristics are trained to obtain the parameters of a model; and the characteristics of behavior track testing data of a user with an unknown behavior category are extracted, the extracted characteristics are input into the model obtained in training, and the behavior category of the user in the video is output. The method can be used for an intelligent visual monitoring system to help the monitoring system to identify the behaviors of the user in the scene so that the monitoring system canbetter understanding the situations in the scene. The unchanged view angle behavior identification method based on the geometric invariable has very important significance in improving the understanding capability of the next generation of intelligent monitoring system, to the behaviors of the user in the monitored scene.

Description

technical field [0001] The invention belongs to the field of pattern recognition, and relates to technologies such as computer vision and image processing, in particular to behavior recognition with constant viewing angle. Background technique [0002] With the development of technology and the gradual reduction of the price of hardware equipment, a large number of surveillance cameras have been installed in various places, especially those places that are sensitive to security requirements, such as airports, communities, banks, parking lots, military bases, etc. Visual monitoring of dynamic scenes is a frontier research direction that has attracted much attention in recent years. It detects, recognizes, tracks targets and understands their behavior from image sequences captured by cameras. Although the surveillance camera, which is an extension of human vision, has been widely used in commercial applications, the performance of the current surveillance system is far from wh...

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to solve the projection distortion of the image caused by the change of the viewing angle. In order to avoid the distortion and cause the behavior of the person in the image to be incorrectly recognized, the present invention proposes a behavior recognition based on a geometric invariant and an invariant viewing angle. method

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