Low storage monitoring method based on optical correlation

Abstract

The invention relates to a low storage monitoring method based on optical correlation. The low storage monitoring method is mainly technically characterized by comprising the following steps that: a video acquisition module extracts a sample image according to a certain frequency specific to video stream data; an image processing module performs image correlation computation on the sample image according to an SSIM (Structural Similarity Index Measurement System) method; the image processing module judges whether image correlation is greater than a preset threshold or not, and performs video storage if the image correlation is not greater than the preset threshold; and if the image correlation is greater than the preset threshold, the image processing module performs image storage. According to the low storage monitoring method, image correlation comparison is performed on an acquired video image, and the occurrence of a perimeter intrusion event is judged intelligently. Moreover, video data is saved selectively, so that the aim of saving internal memory can be fulfilled by not storing non-significant data when the perimeter intrusion event does not occur in an environment, and the problems of high construction cost, large occupied storage space, high energy consumption and the like in an existing video monitoring system are solved. The low storage monitoring method can be widely applied to the video monitoring occasions of security video monitoring, night security video monitoring of parking lots and dormitory areas, and the like during logistics system transportation.

Description

technical field [0001] The invention belongs to the technical field of video monitoring, in particular to a low-storage monitoring method based on optical correlation. Background technique [0002] As the monitoring system develops from the initial closed-circuit television (CCTV, Closed Circuit Television) to the later "analog-digital" monitoring system, and then to today's all-IP monitoring system, the monitoring system plays an increasingly important role in security. [0003] In order to truly record video data, a high-definition video surveillance system has also emerged as the times require. The size of MPEG4 or AVI data files generated by high-definition video surveillance is often several G to dozens of G. The emergence of super-large video files puts forward strict requirements on the storage devices of the surveillance system. It is understood that after high-definition video undergoes different encoding processes, the general bit rate is between 6-20Mb. Due to th...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a low-storage monitoring method based on optical correlation, which compares the image correlation of video images, and only records one image when no perimeter intrusion event occurs in the environment. image, which solves the problems of high construction cost, large storage space, and high energy consumption of the video surveillance system

Images